All Log Contents

Of course, I now think that many pressure spikes are now real events (e.g. dust devils).  However, I've seen other spikes (mostly upwards) that aren't real.  Further tracking finds that most are (only?) spikes in the Paro's temperature measurement.  These spikes are always positive.  During 10 Aug, most of these were with t.8b, however I also see them on 5b, 9b, 10b, 7t, and 8t.  These are not exclusively on pressure2, nor are they all the channels on pressure2.  Also, there is a pattern of most (but not all) spikes at night.  I <think> these started in the last, narrow, configuration, but I'm not yet sure.

Since Paro t changes slowly (essentially a Tcase), it is trivial to despike these.  However, despiking would best be applied upstream of Gordon's code to apply calibrations, and I think it would be a lot of work to redo this at the moment.  (But it should be done before preparing the final data set.)

For the wide array, from Jun 26 to Jul 18, there is some confusion about the bottom level downwind sonic anemometers on towers 4, 5 and 6. The variable names from these sonics have suffixes of 4b, 5b and 6b, indicating what tower they were on.

Intended Configuration for 4b,5b,6b

The intended configuration for the sonics is as follows, along with the serial numbers that Kurt wrote in his setup notes:

The samples are archived with the sensor ids, so after the data has been sampled, knowing the relation between location and sensor id is critical, and is what needs to be determined for these sonics.

So far nothing has indicated any error in Kurt's setup notes of the relation between location and serial number.

The configuration of the later arrays also confirms Kurt's notes for the wide array, because when the sonics were moved to the medium and narrow arrays, care was taken to keep them in their respective locations.

Tom's documentation of the serial number/serial port relation for the medium spaced array, https://wiki.ucar.edu/x/OYWgAQ, agrees with the above serial port to serial number relation.

SteveO's entry for the narrow array, https://wiki.ucar.edu/x/W4CqAQ, also agrees with the above.

In setting up these arrays, care was presumably taken to get the cabling right, so that we're also confident of the mapping from serial port to location during those configurations.

Possible Cross-cabling in Wide Array

In log entry https://wiki.ucar.edu/x/tBR_AQ, Tom used rserial to record the sonic serial numbers at each serial port for the wide array, and noted the following results:

From this he concluded that the cabling from serial ports to the sonics was crossed up from the intended configuration.

The XML specifies what sensor id is assigned by the DSM to each sample received on a serial port. I believe the XML was checked at that time, and it contained the intended mapping from serial port to sensor id. So at that time it appeared that the actual relation between sensor id and location on the wide array was as follows:

If the above relation of sensor id to location was true, then our data processing, which used the intended configuration, assigned wrong location suffixes to the data from those sonics for the wide array.

Evidence of Actual Sonic Location

There are several counter-arguments to the above, indicating that Tom somehow confused the serial ports in his log message, and that the cabling matched the intended configuration in the wide array.

First, the serial number to sensor id relation can be read from the data archive, since the rserial output is archived. The serial number messages from the archive of the wide array are shown here, with their sample times:

Assuming Tom progressed through the serial ports in order, they show the serial number sequence to be 744, 745, 376, and not 745, 376, 744. The sensor ids are also in time order: 2040, 2050, 2060, and the mapping of sensor id to serial number matches the intended configuration, and not the crossed configuration.

Perhaps two mistakes were made which cancelled each other: cross-cabling, and the complement association between serial port and sensor id in the XML? Or perhaps the XML on the DSM was corrected to match the cabling shortly after the wide array started, and then corrected back for the medium spaced array? Both seem unlikely. The sequence of the above serial numbers suggest that neither of the above occurred, and that the serial ports were recorded incorrectly in Tom's log message.

The sensor ids have not been altered in the archive after it was recorded, since the modification times of the files have been preserved and match the original recording times.

Steve Oncley also looked at data during dust devil events from these sonics during the wide array, and the spacial continuity of the relative wind directions indicate that the sonics were in the intended configuration.

The tt_adjust program has been run on the AHATS unsorted raw data. One of the results of the processing is a linear fit of the relation of the sample time tag to the sample number, for every 1/2 hour. The slope of the fit is the sampling period of the sensor, which for sonics at 60Hz, should be about 16666.7 microseconds. Systematic differences between the sample periods of individual sonics can be seen, which provide another indication of the relation between the sensor id and the sonic serial numbers.

The sampling rates show a diurnal temperature dependence, but one can distinguish the individual sonics. Below is a plot of sample delta-T for sensor ids 2040, 2050 and 2060 for the entire project, showing that the serial number to sensor id mapping did not change for these sonics during the project. The sensor id is shown in the trace legend.

The data is a bit noisy during the wide array, but it seems quite certain that the relation of serial number to sensor id did not change:

Serial Number vs Sensor ID History

For all sonics connected to downwind1, here is the serial number information in the archive:

Some of the boom_normal cal_files have values for Vazimuth for some configurations.  This is inconsistent with most of the boom_normal files and the intent for boom_normal data.  Consequently, I set those Vazimuths to 0.0.

Files changed:

-rw-rw-r-- 1 6072 Mar 16 12:01 csat_8m.dat
-rw-rw-r-- 1 6185 Mar 16 11:56 csat_8u.dat
-rw-rw-r-- 1 6532 Mar 16 11:54 csat_7u.dat
-rw-rw-r-- 1 6362 Mar 16 11:53 csat_6u.dat
-rw-rw-r-- 1 6388 Mar 16 11:52 csat_11t.dat
-rw-rw-r-- 1 6732 Mar 16 11:50 csat_6t.dat
-rw-rw-r-- 1 6351 Mar 16 11:46 csat_9b.dat
-rw-rw-r-- 1 6721 Mar 16 11:44 csat_6b.dat
-rw-rw-r-- 1 6385 Mar 16 11:42 csat_5b.dat
-rw-rw-r-- 1 6552 Mar 16 11:36 csat_2b.dat
-rw-rw-r-- 1 5258 Mar 16 11:35 csat_1b.dat

After correction of the sonic orientations using the sonic boom angles measured with the Data Scope, there were still systematic differences in the sonic wind directions across the arrays that were broadly correlated with the post-project sonic zero wind offsets measured in the wind tunnel.  Therefore we subtracted offset corrections from the sonic horizontal wind components u and v. 

The offsets were determined by assuming that the time-averaged wind field was uniform across each sonic array.  First the mean values of the horizontal wind components were calculated for each sonic over the period of each configuration (or sub-configuration), only using  data with wind directions within 45 degrees of normal to the array and wind speeds exceeding 1 m/s.  The wind offset corrections were then derived by selecting one or more reference sonics in each array with small post-project-measured offsets.  These were sonic 8u (s/n 0673) in the upwind array, sonic 6t (0672) in the top array, and sonics 4b (0744), 5b (0745) and 6b (0376) in the bottom array.    The u and v offsets for each sonic were calculated as the differences between its mean values for u and v and the mean values for the corresponding reference sonic. To these offsets were added the wind-tunnel offsets measured for the reference sonics.  Note that this procedure does not account for the variation of sonic wind offsets with temperature, but simply removes the mean offset irrespective of temperature.

u offsets (cm/s) for upwind arrays wrt CSAT 8u + 4.4 cm/sec

* Configuration 1 was divided into sub-periods because of its length and the expectation that the offsets may have changed with time.

   Config 1.1: June 25 12:00 to July 1 12:17 (upwind height = 3.74m)

   Config 1.51: July 1 12:55 to July l 9 09:25 (upwind height = 3.24m)

   Config 1.52: July 9 09:25 to July 18 05:55 (upwind height = 3.24m)

v offsets (cm/s) for upwind arrays wrt CSAT 8u + 3.3 cm/sec

u offsets for top arrays wrt CSAT 6t + 2.3 cm/sec

* Config 1.2: June 25 12:00 to July 6 12:00

   Config 1.6: July 6 12:00 to July l8 05:55

v offsets for top arrays wrt CSAT 6t + 2.2 cm/sec

u offsets for bottom arrays wrt CSAT 4,5,6b + 1.33 cm/sec

v offsets for bottom arrays wrt CSAT 4,5,6b + 0.67 cm/sec

We intend to estimate advection by taking the differences between data from the upwind sonic array and data from the downwind, bottom array.  Therefore I have calculated the height difference between the sonic measurement volume and the nominal sonic heights measured at the base of the boom.  The nominal heights were closely matched between the upwind and downwind arrays.  I calculated the height difference as

sonic height above height measured at base of boom = boom-length*sin(pitch-angle) = boom-length*sin(lean*cos(leanaz))

where lean and leanaz were determined with the planar fit technique and recorded in the sonic cal files.  The boom-length is the distance from the base of the boom to the sonic measurement volume = 1.765 cm. 

In the following tables, a positive height difference indicates that the sonic is higher than the base of the boom.  The height differences are in cm.  The Date/time in the first column is when the new height difference takes effect. 

Upwind array

* changed upwind array height from 3.74m to 3.24m

Bottom, downwind array

* adjusted height of downwind array sonics to decrease boom sag

Top, downwind array

* adjusted height of downwind array sonics to decrease boom sag

Profile sonics

* replaced 7m and/or 8m sonics

** moved 7m sonic up

Steve Oncley and I are reviewing the measurement of sensor heights with the goal of perhaps reconciling ambiguities in the sensor heights.

Configuration 1 dimensions

The horizontal arrays sonic heights were measured relative to the mean of the heights agl of the reference marks for both the upwind (1.534 m) and downwind (1.53 m) arrays. The profile heights appear to have been measured relative to the height of the reference mark on the profile towere (1.52 m).

Configuration 2 dimensions

The reference mark height for all configuration 2 sensor heights was measured at the NE tower of the downwind horizontal array (goalposts) = 1.76m.   Sonic 1b at the NE end of the array was 1.91m+0.05m = 1.96 m above the reference mark and sonic 12b at the SW end of the array was 1.92m+0.05m = 1.97 m above the reference.  Sonic spacing was 1.29 m.

The mean heights above the reference mark of the upwind sonics was 1.92m+0.05m = 1.97 m. The heights agl of the upwind reference marks or the profile reference marks do not appear to have been measured.  Assuming a reference height of 1.76m for the horizontal arrays, gives array heights of 1.76m+1.97m = 3.73m agl

Following are the new profile sensor heights.

* heights above configuration 2 reference mark

**corrected reference mark height implied by continuity of 3m profile sensors through configurations 2-4 (see Discussion at end).

Configuration 3 dimensions

The reference mark height for configuration 3 was not measured agl, but was measured to be 15.2 cm below the reference mark for configuration 2 or 1.76m-0.15m = 1.61 m. (BUT the height of the configuration 3 reference mark on the profile tower was  later measured to be either 1.51m or 1.53m!)  The heights of the downwind array sonic booms above the reference mark were measured to be

These heights were measured again on Aug 4 :

for mean sonic heights of 3.262m+1.61m+0.053m = 4.93 m and 5.93 m agl.   The heights of the upwind sonics appear to be 3.254m+0.053m+1.61m = 4.92 m agl.

The profile sonic (?) heights were measured on Aug 3 :

Configuration 4 dimensions

There are several statements about the heights of the reference marks in this logbook entry.  It is stated that the profile reference mark for configuration 3 = 1.505 m agl, but also that it is 0.027 m "above top of 1.55m sonic" (boom?), implying a height of 1.50m+0.027m = 1.53 m agl.  Then it says the reference mark for configuration 4 is 0.040 m above the reference mark for configuration 3, which could be 1.65m, 1.55m or 1.57m agl.

The 1b sonic boom was measured to be 5.37m above the reference mark for configuration 4.

This logbook entry also measures the sonic and SHT heights wrt the 1.55m sonic boom.  Note that these heights were not changed between configurations 3 and 4, and are consistent within 1cm of the last column of the preceding table.

• measured wrt the 1.5m sonic boom (at 1.50m agl )

Discussion

The 3m profile sensors were not moved through configurations 2-4, so that a discrepancy remains between the heights of the 3m profile sensors during configuration 2 (sonic:=3.77m and SHT=3.75m) and those for configurations 3 and 4 (sonic=3.69m and SHT=3.67m).  This implies that the reference mark height for configuration 2, measured at the NE horizontal array tower to be 1.76m, did not apply at the profile tower, but should rather have been 1.68m.  (Note that simple transposing the last two digits of 1.76m gives 1.67m, which is  within 1 cm of the implied value.)  Kurt very carefully kept the baseplates of the 6 towers for the horizontal array at the same elevation using a 4' carpenters level and presumably did the same for the profile tower.  It seems unlikely that there was an 8 cm difference between the elevations of the 7 AHATS Roan towers.  Assuming 1.67m for the height of the reference mark for configuration 2 gives the following heights:

unch:  Profile heights not measured for configuration 2, but same as configuration 1

Height changed for profile sensors at start of configuration

* 7m sonic moved up on Aug 3 at 09:41

** The configuration 3 SHT heights were not measured, but copied from configuration 4

Following are the profile sonic boom angles measured for the four configurations.

*: sonic height changed from previous configuration

#: changed sonic since previous azimuth measurement

cal: azimuth entry in calibration file = measured magnetic azimuth - 131.7

      For configuration 3, the 3b azimuths are more consistent with previous and

      following azimuths than are 3a.  I (twh) used 3b for the profile cal_files.

Both Semmer and Oncley measured azimuths for the horizontal arrays in configuration

2, and Militzer and Oncley measured azimuths for the horizontal arrays in

configuration 3.  In both cases, Oncley's azimuth measurements were ~4 degrees

larger than the others.  Thus we will use Semmer's azimuths for configuration2

and militzer's for configuration 3 .  Also oncley recommends using the 'surveyed'

horizontal array azimuths for configuration 4, which in this case are mostly very close to Oncley's measurements.

I just set up a test with the digital theodolite in the far east parking lot.  I chose to shoot SN0853, which had been used as "1b" in AHATS.  In Tom/Rudy's plots, this shows a mean wind direction anomaly of about 4 degrees.

I set the sonic up on the TRAM tower, facing the gate.

I set the theodolite up near the gate (about 34m according to GoogleEarth).

For my reference heading, I shot a recognizable tree on the Olde Stage ridgeline (about 6km away).  I moved the theodolite generally along the bearing to this tree, say within 10cm, so this reference heading should be good to atan(0.1/6000) = 3.5" of arc.

The array obviously was not exactly square, so I shot it three different ways, to be more-or-less representative of the variations that might be used.

Shooting the "u" transducer pair, I got 94d 38' 35" for the relative angle to the tree.

Shooting the top tube, I got 94d 43' 49" (essentially the same as the transducer pair).

Shooting the center of the bottom "u" transducer 90degree bend with the bracket at the bottom of the vertical strut, I got 93d 55' 39" -- just 0.7degree different.

Thus, I conclude that, although the array is not perfect, the magnitude of the geometry variations are less than 1 degree, which cannot explain the 4 degree differences that were observed in the field.

Laboratory checks of sonic S/N 0364 found "cycle slip" at temperatures below 20 C, in particular a temperature jump of about 1 deg C in path a around 16-18 deg C.  (Other jumps occurred below 10 deg C, and thus at temperatures not attained during AHATS.)  The temperature jump was an increase of about 1.8 deg C as temperature decreased and thus the sonic temperature would change by 0.6 deg C, since all three paths are averaged to give the output temperature.

I plotted the sonic temperature difference (sonic 8b - sonic 7b) versus sonic 7b temperature (5-minute covars) for the four AHATS configurations.  Between 15 and 20 deg C, the temperature difference between the two sonics ranged from 0.2 to 0.4 deg C and I could not detect any systematic discontinuity in the plots, much less a temperature discontinuity of 0.6 deg C.

Here is the (designed) layout of all the towers.  As built, the array was a mirror image of this, with the wide spacing towers to the West.  Also, the upwind, non-staggered line of towers (in the medium spacing) was at the closer position of 5.12m upwind, rather than ~7m upwind that we had as an option in this design.

Today I finished a first edit of the AHATS sonic data, putting NA's in the cal_files when the 5-minute averages of the sonic diagnostic variable exceeded ~0.5.  During the first configuration, these usually occurred simultaneously on all channels of one of the four sonic adams, suggesting that the adam could not keep up with data ingest when there were transmission problems back to the base.  After the first configuration, simultaneous problems on all channels of an adam occurred less frequently and with smaller 'diag' values.  Then most of the high 'diag' values were associated with the beginning or end of a period of lost data.

 For configuration 4, after August 8, sonic 6u had recurring continuous periods in the middle of the day with 'diag' values between 0.05 and 0.1.  I did not edity these out because it would have removed a significant fraction of the data from 6u during configuration 4.

Post cals were conducted on the SHT probes. Temperature results were within +/- 0.1C. All sensors were within .05C except for sensors SHT001 (error: -.08C) and SHT006 (error: .07C). The humidity is a different story. Over the range of 10% to 90% the average error for all the sensors went from 1% to -8%. The figure below is an example. There was no obvious reason for the change in the calibration. One possibilty is the fine dust at the AHATS site.

A set of tests were conducted to try and restore the sensors. This was based on information from Sensirion. Two sensors were cleaned with distilled water then baked for 24 hours at 90C. The sensors were then run in the humidity chamber at 25C, 90% for 48 hours. This reduced the error to about -4% at 90%. A second test was conducted using a  sonic cleaner before the baking test. This thought was the fine dust was imbedded in the sensor. The results were similar to the previous test. The third test was to similar to the first one except that the sensors were baked at 90C for 72 hours then put in the humidity chamber at 25C, 90 %. The figure below shows the result from this test. Based on this result we will perform the same procedure on the remaining sensors and hope to have similar results. Unfortunately there is no way to determine when the sensors started going bad.

FINAL AHATS status 8/16/08

TEARDOWN BEGINS NOW

Staff: Chenning, Militzer, Nguyen, Verstraete with ISS.

Temps: 105F/67F yesterday, for period 8/14 8:00 - 8/15 8:00

FINAL Good wind direction:
array#4 (aug 9 20:00 - Aug16 08PDT) has 39.5 hours (10.5 unstable, 29 stable).

Local data storage:
------------------
Filesystem           1K-blocks      Used Available Use% Mounted on
upwind:/dev/sda1 57685532 7714060 49971472 13% /var/tmp/usbdisk
downwind1:/dev/sda1 57685532 16330816 41354716 28% /var/tmp/usbdisk
downwind2:/dev/sda1 57685532 17895232 39790300 31% /var/tmp/usbdisk
profile:/dev/sda1 57685532 11617692 46067840 20% /var/tmp/usbdisk
pressure1:/dev/sda1 3940812 1812112 2128700 46% /var/tmp/usbdisk
pressure2:/dev/sda1 3940812 1737824 2202988 44% /var/tmp/usbdisk

aster:/dev/sdb1 721075720 489152132 231923588 68% /media/isff2
isff: /dev/sdb1 1922890480 669008640 1156204636  37% /media/isff15

All systems had remained up and operational and performing basically the same as since the last daily status. 

-See Also: boom azimuths for array4.   I'll be adding the 'triginometric measured angles' to that log entry soon....

Aug14, 08:00 - 14:20

Pressure2's dsm wasn't recording/ingesting data.   The adam itself was running.   System and adam logs do not show any indication of an event at that time.   I was in the middle of daily status at that point and it had been running when I arrived.  Around 9:30 I went to the array for some azimuth measurements and failed to catch the problem before going out.   'adn' / 'aup' restarted daq.   Unclear why it died.   I had not logged on, or anything other than 'ds' and 'lsu' on aster according to the /var/log/isff at ~7:54

AHATS status 8/14/08

Staff: Chenning, Militzer, Nguyen, Verstraete with ISS.

Temps: 104F/65F yesterday, for period 8/13 8:00 - 8/14 8:00

Activity highlights:
- array4.
- See profile note on 11th: diamond board problem, but staying up.   crontab reset notes past 2 days
  were erroneous because the command lacked complete path to script.   Interrupts still occuring.
  but adam was staying up.  Some short looking files around the normal '12' hour restarts.
  Will adjust Crontab to avoid extra restarts at 0:15,12:15.
-
- https://wiki.ucar.edu/display/ahatslogbook

Good wind direction:
array#4 (aug 9 20:00 - Aug14 08:00PDT) has 25.5 hours (6 unstable, 19.5 stable).

Local data storage:
------------------
Filesystem           1K-blocks      Used Available Use% Mounted on
upwind:/dev/sda1    57685532 5122360 52563172 9% /var/tmp/usbdisk
downwind1:/dev/sda1 57685532 13454468 44231064 23% /var/tmp/usbdisk
downwind2:/dev/sda1 57685532 14443516 43242016 25% /var/tmp/usbdisk
profile:/dev/sda1   57685532 9705720 47979812 17% /var/tmp/usbdisk
pressure1:/dev/sda1 3940812 1212932 2727880 31% /var/tmp/usbdisk
pressure2:/dev/sda1 3940812 1217320 2723492 31% /var/tmp/usbdisk

aster:/dev/sdb1 721075720 477200804 243874916 67% /media/isff2
isff: /dev/sdb1 1922890480 656609548 1168603728  36% /media/isff15

Pressure:
--------
(+/- = ~1 std deviation among variables at the same height)

'p.ref' is measuring AHATS ref p with the 202BG connected between the
AHATS and CHATS references.
P.bedard now is the portable Paroscientific standard with reasonable resolution, but
low sampling rate connected to the Bedard pressure port now installed on boom 13b.

Profile: [,select.p]
--------
[Need to swap new 8P board with an old version 8M, but none available.]

Heights of sensors are the same as array3.
Intended to move trh sensors, but tower/collars didn't work well for exact placement

T: ok.
RH: sensor that is at 5.8m is still up to 2% off.

h2o: normal, 2 g/m^3 offset from dat("Q"), except in afternoon.
w'h2o': ok, 0.020 m/s g/m^3 at midday, spiking to .04 in afternoon
co2: ok, 14-20 mmol/m^3
w'co2': ok, min. -0.012 m/s mmo/m^3 at middayProfile

Sonics:
Profile
-------
diag: ok, spike on 8m at 13
samples.sonic: ok.  Seeing 'spikes' as expected with cron restart.  Large spread between sensors during startup; from 2-25, or mor\
e missing on 8m
spd: ok.
dir: ok
w: ok.  8m seems maybe tilted up a bit
tc: ok
w'w': ok
u*: ok, some imaginary values with light winds
sigma_w/u*:
w'tc': ok (lowest near the ground?)
tc'tc': ok

Upwind [,select.u]
----------------
diag: ok, again, 6u has lots of spiking in daytime, up to .06, ok at night....
samples.sonic: ok?
spd: ok, low winds yesterday
dir: ok, needs new angles
w: ok, +20/-0 cm/s, appears tilted down perhaps
tc:  ok, +/- 0.2-6 deg, biases somewhat larger, 3u,4u again highest
w'w': ok, +/- 0.01 m^2/s^2 in day (30 min avg for second moments)
u*: ok,  +/- 10 cm/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

Downwind Lower [,select.b]
------------------------
Relatively large differences with east winds.

diag: ok, 6b spike in daytime ~13:00 occassionally (Birds, spiders?)
samples.sonic: ok
spd: ok, +/- 5 cm/s, with 12b,13b up to .5m higher, and 2b next in daytime with SWearly winds
dir: ok, new boom angles improved things at ~19z last night, but 1b, 10b still appear out.
w: ok, +/- .2 m/s, pitch looks better for some reason
tc:  ok, +/- 0.3 deg, biases up to 1, some curious shift .3-.4 up/down from ~2-3:00 in 1b,2b,3b,4b
w'w': ok, +/- 0.01 m^2/s^2  (30 min avg for second moments)
u*: ok,  +/- .1 m/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

Downwind Upper [,select.t]
------------------------

diag: ok, .002-.01 spikes occassionally
samples.sonic: ok
spd: ok, again low winds, highest <1.5ms 1-3am
dir: ok, +/- 2 deg, need boom angles
w: ok, +/- 10 cm/s
tc:  ok, +/- 0.4 degC, offsets up to 1 degC, again shift as on 'b' for 3t,4t,5t when winds slightly higher
w'w': ok, up to +.15-0.2 m^2/s^2 in day (30 min avg for second moments)
u*: ok,  +/- 2 cm/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

----------------------------------------------------------------

AHATS status 8/13/08

Staff: Chenning, Militzer, Partial-Oncley, Nguyen, Verstraete with ISS.

Temps: 100F/60F yesterday

Activity highlights:
- now in array4.
- See profile note on 11th: diamond board problem, but crontab reset working.
- SteveO is bringing a partial set of the data (essentially all of array3 and up to today)
  home with his pc.  Along with the disk SteveC returned, this gives a 3rd copy of
  the data through today.
- https://wiki.ucar.edu/display/ahatslogbook

Good wind direction:
array#4 (aug 9 18:00 - present) has 16.8 hours (2 unstable, 14.8 stable).

Local data storage:
------------------
upwind:/dev/sda1 57685532 3886424 53799108 7% /var/tmp/usbdisk
downwind1:/dev/sda1 57685532 12082788 45602744 21% /var/tmp/usbdisk
downwind2:/dev/sda1 57685532 12797440 44888092 22% /var/tmp/usbdisk
profile:/dev/sda1 57685532 8793928 48891604 15% /var/tmp/usbdisk
pressure1:/dev/sda1 3940812 927192 3013620 24% /var/tmp/usbdisk
pressure2:/dev/sda1 3940812 931580 3009232 24% /var/tmp/usbdisk

aster:/dev/sdb1 721075720 471463780 249611940 66% /media/isff2
isff: /dev/sdb1 1922890480 651612524 1173600752  36% /media/isff15

Pressure:
--------
(+/- = ~1 std deviation among variables at the same height)

'p.ref' is measuring AHATS ref p with the 202BG connected between the
AHATS and CHATS references.
P.bedard now is the portable Paroscientific standard with reasonable resolution, but
low sampling rate connected to the Bedard pressure port now installed on boom 13b.

p: ok, +/- 0.03 mb, overall spread between sensors ~.15
p'p': ok?, +/- 0.0004 mb^2 max in daytime, <.0001 at night
w'p': ok, +/- 0.0015 m/s mb in day
t: ok, 1 degC,
Pref: ok, reconnected to volume at start of this config.
P: ok

Profile: [,select.p]
--------
[Need to swap new 8P board with an old version 8M, but none available.]

Heights of sensors are the same as array3.

T: ok.  Intended to move trh sensors, but tower/collars didn't work well for exact placement
RH: sensor that is at 5.8m is still up to 2% off esp at night.

h2o: normal, 2 g/m^3 offset from dat("Q"), except in afternoon.
w'h2o': ok, 0.025 m/s g/m^3 at midday
co2: ok, 14-20 mmol/m^3
w'co2': ok, <-0.01 m/s mmo/m^3 at midday

Sonics:
Profile
-------
diag: ok
samples.sonic: ok
spd: ok.
dir: ok
w: ok
tc: ok
w'w': ok
u*: ok, some imaginary values with light winds
sigma_w/u*:
w'tc': ok (lowest near the ground?)
tc'tc': ok

Upwind [,select.u]
----------------
diag: ok, 6u noticable spiking in daytime, up to .06, ok at night
samples.sonic: ok?
spd: ok, +/- 20 cm/s, 3u,4u seem highest in day, they're best exposed to the NE in 'bad' cond\
itions.
dir: ok, obviously need new angles
w: ok, +20/-0 cm/s, appears tilted
tc:  ok, +/- 0.2-6 deg, biases somewhat larger, 3u,4u again highest
w'w': ok, +/- 0.005 m^2/s^2, 3u highest  (30 min avg for second moments)
u*: ok,  +/- 10 cm/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

Downwind Lower [,select.b]
------------------------
Relatively large differences with east winds.

diag: ok, 2b spiking in daytime some, upto .05 occassionally (Birds, spiders?)
samples.sonic: ok
spd: ok, +/- 5 cm/s, with 1b upto to 1m higher, and 2b next in daytime with NEearly winds
dir: ok, new boom angles improved things at ~19z last night, but 1b, 10b still appear out.
w: ok, +/- 10 cm/s, pitched up a bit (we tightened it a bit too much)
tc:  ok, +/- 0.3 deg, biases up to +/-0.6
w'w': ok, +/- 0.01 m^2/s^2  (30 min avg for second moments)
u*: ok,  +/- .1 m/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

Downwind Upper [,select.t]
------------------------

diag: ok, misc brief spikes, more likely birds than the notes above
samples.sonic: ok
spd: ok, +/- 50 cm/s, 3t much higher up to 1.1-5m during daytime (NE winds)
dir: ok, +/- 2 deg, need boom angles
w: ok, +/- 10 cm/s
tc:  ok, +/- 0.4 degC, offsets up to 0.6 degC
w'w': ok, up to +.15-0.2 m^2/s^2 in day (30 min avg for second moments)
u*: ok,  +/- 2 cm/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

----------------------------------------------------------------

Since there is no evidence of profile interrupt failures during the last several days, we've decreased the frequency of adnaup commands to every 3 hours, rather than every hour.  The adnaup sequence appears to remove 16s of data.

Update (Militzer): I'm not sure where Steve got the '16s' other than when we did test the script a couple days ago.   The script was not running at all because the full path wasn't included in the crontab statement.....fixed now.   Also, the kernel log does show regular spurios interrupts since we looked at the box on the 11th.  Apparently they aren't enough to cause the lock-up problem....ie the adam has been staying up on it's own.   Was this the result of reinserting the resistor pack on the viper; not sure but could be that is true.

Now the crontab will run and we'll see those '16s' outages beginning at 18:15 every 3 hours...

Here are angles I shot today with the DataScope from 1030-1130 today.  John and I don't completely trust datascope readings, but they did seem internally consistent (i.e. when I thought the angle should have been more southerly than the previous reading, it was).

 Note that the 3 sonics on each trident are <reasonably> consistent -- especially 9/10/11u.  Trident 6/7/8u is definitely rotated with respect to trident 9/10/11u.

11t of 130 degrees and 3t and 10t of 134 are not typos.

Finally, note that the relatively close agreement of the horiz array angles are not coincidence -- it is easier to see and adjust (a bit) angles when they are on the horiz array with a close spacing.  Also, the EMT conduit now links all of them together.

P.S. These have now been entered in the cal_files (less 131.7 degrees, as before).

Note Aug14 ~9:30-10:30PDT, I JohnM decided to take a 'shot' myself.   These are in column 'U8-14.   The differences with Steves are in 'UD8-14 '.   When I took these, it was further away than I'd tried before (well beyond the berm), and nominally I had the horizontal reference of the datascope on the horizon with the sonic still in view at the top...ie tried to minimize the tilt angle as best i could.   I aligned visually using symmetry between the 'left-right' probes balanced on either side of the square box.   I only did the upwind at this time because later on the winds were good and I didn't want to mess them up.   From these readings, difference was substantial but consistent with Steve's.....may need to 'cal?'    I'm hoping KK will be able to do a few proper theadolite sun-angle shots tomorrow.

Note: Aug15.  Sun-Angle Sanity Check:

Kurt, Chris and I took sunangle method shots of 2 sonics to compare with the data-scope readings.   We aligned the theadolite to the sun for 36:01.27N, 119:53.59W and using the sunangle program obtained the offset angle.   The magnetic declination for this latitude/date = 13.6.   From the sun angle readings: U6 = 144.:49:06 ~ 144.8deg true - 13.6 = 131.2 magnetic;    U11 = 148:19:50 ~ 148.3deg true - 13.6 = 134.7 magnetic.  NOTICE that these magnetic readings for U7, U11 match SteveO's within about .5deg, but mine don't match.  Conclusion: Use Steve's readings.....

Note: Aug15.  Triginometric Sanity Check:

SteveO, Chenning, Khuong, and I setup a reference line parallel to array, with a perpendicular from the NE most rohn tower to a point 75.59m to a stake on that parallel line.   We used triangles from the array to establish the perpendicular, and from the reference stake used the theodolite to shoot the parallel line.  We determined the distance to the stake by triangulation using the theodolite setup on the parallel 100' away from the reference and shooting back to the rohn tower.    From this reference stake and reference line, we aligned the theodolite to the upwind sonics and measured the distance D from the stake to the alignment point.   Using these dimension, adjusting the 75.59 distance to 72.47 by the 3.12m difference from the rohn to the pam tripod and subtracting the .43 sonic spacing and 1.87m offset of the tripod to the rohn tower (for D'), we took the asine and added the array alignment (325-180=145deg true looking back toward the sonics) to determine the sonic angles; and substracted 13.6 for the magnetic declination.  Note we visually aligned to the sonics using the "Horst method" which balances the back two transducers on either side of the square sonic head assembly.   This technique should work, although for the upwind array in particular there are several tolerance assumptions that we can't measure directly (ie the 1.87, 3.12, etc) which makes it a bit awkward.   Note the sunangle readings for u7 were within .1 deg, but for u11 it was 1deg (Chris used the 'front transducer alignment method which could account for a slight additional difference).

cal: azimuth entered in cal_file = BoomDirMagn - 131.7

Later in the day I took readings for the Horizontal Array.   In this case 'D' is the distance from the reference stake to the SW direction (positive).   The distance from the rohm tower leg to the  first sonic was measured as .6m, and the length of the boom to the head bolt as 1.37m, the sonic spacing is .43m.   D' = D - the index number (sonic#-1) * .43m.   The angle is asine (D' /  (75.59 - 1.37))

AHATS status 8/12/08

Staff: Militzer, Oncley, Nguyen, Verstraete with ISS.

Temps: 99F/59F yesterday

Activity highlights:

• now in array4.
• See profile note on 11th: diamond board problem.
  no outages last night, crontab reset working.
• Logbook Wiki and NCAR Web server finally up this morning.

https://wiki.ucar.edu/display/ahatslogbook
...but wiki.ucar.edu has been down this weekend...

Good wind direction:
array#4 (aug 9 18:00 - present) has 11.92 hours (.42 unstable, 11.5 stable).
(Darn, winds have not cooperated for a couple of days!)

Local data storage:
------------------
upwind:/dev/sda1 57685532 2605580 55079952 5% /var/tmp/usbdisk
downwind1:/dev/sda1 57685532 10661244 47024288 18% /var/tmp/usbdisk
downwind2:/dev/sda1 57685532 11091504 46594028 19% /var/tmp/usbdisk
profile:/dev/sda1 57685532 7848016 49837516 14% /var/tmp/usbdisk
pressure1:/dev/sda1 3940812 631080 3309732 16% /var/tmp/usbdisk
pressure2:/dev/sda1 3940812 635460 3305352 16% /var/tmp/usbdisk

aster:/dev/sdb1 721075720 465517532 255558188 65% /media/isff2
isff: /dev/sdb1 1922890480 645615008 1179598268 36% /media/isff15

Pressure:
--------
(+/- = ~1 std deviation among variables at the same height)

P.bedard had a pinched hose overnight so data is bogus until fixed today @~10pdt.

'p.ref' is measuring AHATS ref p with the 202BG connected between the
AHATS and CHATS references.
P.bedard now is the portable Paroscientific standard with reasonable resolution, but
low sampling rate connected to the Bedard pressure port now installed on boom 13b.

p: ok, +/- 0.03 mb plot scale too large to tell
p'p': ok?, +/- 0.0005 mb^2 small but perhaps okay some variance 'spike' in 5b in 20z
w'p': ok, +/- 0.001 m/s mb in day
t: ok, 1 degC,
Pref: ok, reconnected to volume at start of this config.
P: ok

Profile: ,select.p
--------
Need to swap new 8P board with an old version 8M, but none available.

Heights of sensors are the same as array3.

T: ok. Intended to move trh sensors, but tower/collars didn't work well for exact placement
RH: sensor that is at 5.8m is up to 2% off. Didn't change throughout array #3 period,
now is not important in array #4.
h2o: normal, 2 g/m^3 offset from dat("Q"), except in afternoon.
w'h2o': ok, 0.025 m/s g/m^3 at midday
co2: ok, 14-18 mmol/m^3 (some nights have large values, some don't)
w'co2': ok, -0.01 m/s mmo/m^3 at midday

diag: ok
samples.sonic: ok
spd: ok. Swapped sonic at 8m yesterday, corrected abnormal looking profile
dir: ok
w: ok
tc: ok
w'w': ok
u*: ok, some imaginary values with light winds
sigma_w/u*:
w'tc': ok (lowest near the ground?)
tc'tc': ok

Upwind ,select.u
----------------

diag: ok, 8u spikes and 6u more
samples.sonic: ok?
spd: ok, +/- 20 cm/s
dir: ok, obviously need new angles
w: ok, +20/-10 cm/s, maybe tilted
tc: ok, +/- 0.2-4 deg, biases somewhat larger
w'w': ok, +/- 0.005 m^2/s^2, 3u highest (30 min avg for second moments)
u*: ok, +/- 5 cm/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

Downwind Lower ,select.b
------------------------
Relatively large differences with east winds.

diag: ok
samples.sonic: ok
spd: ok, +/- 20 cm/s, much larger variance yesterday with winds off dir
dir: ok, need new boom angles
w: ok, +/- 10 cm/s, pitched up a bit (we tightened it a bit too much)
tc: ok, +/- 0.3 deg, biases up to +/-0.6
w'w': ok, +/- 0.01 m^2/s^2 (30 min avg for second moments)
u*: ok, +/- 2 cm/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

Downwind Upper ,select.t
------------------------

diag: ok, spikes around 18, 23PDT last night
samples.sonic: ok
spd: ok, +/- 40 cm/s, higher in 3t yesterday up to 1.1-5m, and in general higher
dir: ok, +/- 2 deg, need boom angles
w: ok, +/- 10 cm/s
tc: ok, +/- 0.4 degC, offsets up to 0.6 degC
w'w': ok, +/- 0.01 m^2/s^2 (30 min avg for second moments)
u*: ok, +/- 2 cm/s, som imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

----------------------------------------------------------------

When wiki.ucar.edu was down I put misc entries here:

6-4-09 (twh) NOTE: I found (see below) that the 8m sonic swap on the profile tower appears to have occurred on 8-11 rather than 8-12. Oncley looked at photos of his jaunt to Moro Bay and found that he went there on 8-10. So the dates on the entries below should be changed to the previous day.

8/11 (twh: actually 8/10):
New heights were 5.37m above ref4 level (which is 0.04m above ref3 level).
Thus, the new heights should be 5.37+1.65=7.02m and 8.02m. upwind was setup
this way.
These are close enough to the existing profile 7.08 and 8.05, that we're not planning
to move them.

Yesterday (8/10), measured guy wire tensions on east horizontal array (with all the sonics now)
in a 6 m/s wind from the N:
SE 250
SW 220
NW 190
NE 240
These seem a bit low to us, but are reasonably consistent.

~12:00: Found that the interface board to 11b had pulled out of pressure2's
motherboard. Reset.

12:10-12:30:

• Cycled power twice to upwind to get Pocketec running. Replaced the
  Pocketec in the process.
• Swapped 4G sticks in pressure1 and pressure2
• Have now downloaded all of these drives/sticks still need merge

~13:00 changed config. Restarted statsproc. covar_redo to go back to beginning
of this config. Config has new horiz array heights and new names for
some pressure sensors. Still need new heights for profile...

~13:30 We're off to Moro Bay for some R&R&R...

I sometimes get the following error when trying "aup", but a second "aup" always works:
Starting adam code.../usr/local/isff/scripts/adam/start_adam: line 30: 11238 Illegal instruction dsm '$ISFF/projects/$PROJECT/ISFF/config/'$CONFIG_XM
L
.
[Gordon says that this is an artifact of moving code from Viper RAM to SD card. If second
"aup" works, live with it.]

8/12 (twh: actually 8/11):

0945 - unpinched tubing to P.bedard
0950 - turned "profile" adam off to swap serial card
1005 - turned "profile" back on - don't have 8M card (rather than 8P)
1020-1030 - moved bedard port from on stake near ground to 13b boom (back a bit
from sonic)
1106 - added "adnaup" crontab on profile to restart every hour at 15 min after the hour.
~1130-1230:

• measured all heights on profile:

1150-1210: replaced CSAT 720 with 733 at profile.8m (since high? speeds). (733 was the original "low" sonic at 8m when I arrived here, I think...)

6-4-09 (twh) I found a corresponding break in the 8m sonic data on 8/11, not 8/12

1210-1215: decided that it wasn't worth moving TRH's by 2cm in height. (7m wouldn't fit 2cm lower
anyway.)
1215: secured profile adam box

AHATS status 8/11/08

Staff: Militzer, Oncley, Nguyen, Verstraete with ISS.

Temps: 97F/57F yesterday

Activity highlights:

• now in array4.
• See profile note, some outages last night, board problem
• Logbook Wiki and NCAR Web server is still down.
  [The work on a sql server update on saturday caused the problem.
  The vendor/ncar staff expect a patch by midnight tonight will allow
  'logbook' to be back up by tomorrow morning.]

https://wiki.ucar.edu/display/ahatslogbook
...but wiki.ucar.edu has been down this weekend...

Good wind direction:
array#4 (aug 9 18:00 - present) has 11.42 hours (.42 unstable, 11 stable).

Local data storage: (swapped pressure1/2 sticks,upwind pocketec yesterday)
------------------
upwind:/dev/sda1 57685532 1594044 56091488 3% /var/tmp/usbdisk
downwind1:/dev/sda1 57685532 9538676 48146856 17% /var/tmp/usbdisk
downwind2:/dev/sda1 57685532 9744300 47941232 17% /var/tmp/usbdisk
profile:/dev/sda1 57685532 7100640 50584892 12% /var/tmp/usbdisk
pressure1:/dev/sda1 3940812 398016 3542796 10% /var/tmp/usbdisk
pressure2:/dev/sda1 3940812 401564 3539248 10% /var/tmp/usbdisk

aster:/dev/sdb1 721075720 460821376 260254344 64% /media/isff2
aster:/dev/sdb1 1922890480 640618164 1184595112 36% /media/isff15

Pressure:
--------
(+/- = ~1 std deviation among variables at the same height)

P.bedard had a pinched hose overnight so data is bogus until fixed today @~10pdt.

'p.ref' is measuring AHATS ref p with the 202BG connected between the
AHATS and CHATS references.
P.bedard now is the portable Paroscientific standard with reasonable resolution, but
low sampling rate connected to the Bedard pressure port now installed on boom 13b.

p: ok, +/- 0.03 mb plot scale too large to tell
p'p': ok, +/- 0.0005 mb^2 small but perhaps okay -- only stable data to look at
w'p': ok, +/- 0.002 m/s mb
t: ok, 1 degC
Pref: ok, reconnected to volume at start of this config.
P: ok

Profile: ,select.p
--------
Diamond board problems overnight and today. Lost ~8hours.
Need to swap new 8P board with an old version 8M, but none available.
Started crontab to 'adn / aup' every hour to force a restart. Seems to be helping
and we've gotten data since doing this ~11pdt.
Heights of sensors are the same and array3.

T: ok
RH: sensor that is at 5.8m is up to 2% off. Didn't change throughout array #3 period,
now is not important in array #4.

h2o: normal, 2 g/m^3 offset from dat("Q"), except in afternoon.
w'h2o': ok, 0.025 m/s g/m^3 at midday
co2: ok, 14-17 mmol/m^3 (some nights have large values, some don't)
w'co2': ok, -0.01 m/s mmo/m^3 at midday

diag: ok? spikes in 4.8m.
samples.sonic: ok
spd: ok?, Swapped sonic at 8m.
Replaced 720 with 733. 720 had been reporting a bit too high. Had been at
7m, and when we swapped it to 8m the high reading showed up.
dir: ok
w: ok
tc: ok, still strange 7m/8m ordering.

-----------------------
-----------------------
Note: From here on the specific sensor comments are removed because we
began a rerun of all of the covars which caused display/naming issues with
running the 'daily.qq' plots. From the brief looks, everything was up and
running in down1,2, pressure1,2 upwind and profile.

ref3 is ~1.505m above top of profile's plate.
center of sonic is 0.053m above top of boom
TRH is 0.37m below top of boom, thus top of TRH boom should be 0.42m above top of sonic boom.

In array 4:

• East side of array is has height of the top of 1b's boom 5.37m above ref4
• We set upwind's sonics to this same top of boom (plate) being 5.37m above Ref4
• Ref4 is 0.040m above Ref3
• Ref3 is 0.027m above top of "1.55m" sonic
• THUS,
  + profile "7m" top of sonic boom should be 5.447m above "1.55m" sonic.
  + profile "8m" top of sonic boom should be 6.447m above "1.55m" sonic.
  + profile "7m" top of TRH boom should be 5.447m + 0.42m = 5.867 above "1.55m" sonic.
  + profile "8m" top of TRH boom should be 6.447m + 0.42m = 6.867 above "1.55m" sonic.

Our measurements of profile:

• 1.55m top sonic boom is -0.027m below ref3
  (remaining entries are with respect to top of 1.55m sonic boom)
  sonic TRH
  1.55 0.000 0.376
  3.x 2.140 2.542
  4.x 3.352 3.749
  5.x 4.286 4.710
  7.x 5.582 5.886
  8.x 6.508 6.878

Note that 7.x TRH of 5.886m is 2.1cm higher than desired and 8.x TRH of 6.787 is 1.1cm higher than
desired. We can't move the 7.x TRH lower due to Rohn internal braces, thus, we'll leave both
of these.

Numbers "AGL":
1.55 1.555 1.511
3.x 3.695 3.677
4.x 4.907 4.884
5.x 5.841 5.845
7.x 7.137 7.021
8.x 8.063 8.013
others 7.002

Tabulating the profile heights:

• height wrt 1.5m sonic boom

array4 list, collected 8/11/08 (after replacing 8m sonic)

profile:

rs 1 profile
EEProm_sig=39009. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=112a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=ebb d TNb=cbb JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=095 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0732 16nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=39009 &=1 os=

rs 2 profile
ET= 60 ts=i XD=d GN=122a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 0
2600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=009 009 010 ELb=009 009 010 TNo=dcb d TNb=ecb JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=7 7 8 tlb=7 7 8 CA=1 TD= duty=
090 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0739 05jun08 JC=3 CB=3 MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=43113 &=1 os=

rs 5 profile
nET= 60 ts=i XD=d GN=222a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600
02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=acc d TNb=aca JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty
=094 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0740 15nov07 JC=3 CB=3 MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=26065 &=1 os=

rs 6 profile
EEProm_sig=33258. Prom_sig=17263. \n>??D\r\nET= 60 ts=i XD=d GN=222a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00000
HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 009 010 ELb=010 010 010 TNo=ded d TNb=dcd JD= 007\r\nC0o=-2-2-2 C0b=-2-2
-2 RC=0 tlo=8 7 8 tlb=8 8 8 CA=1 TD= duty=094 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0537 01sep06 JC=3 CB=3 MD=5 DF=0500
0 RNA=1 sa=1 rev 3.0f cs=33258 &=1 os=

rs 7 profile
EEProm_sig=33920. Prom_sig=46426. \n>??\r\nSN0369 24oct07 rev 4.0t &=1 AC=1 AF=050 AH=1 AO=00300 ar=0 AQ= 60 BR=0 BX=0\r\n CF=1 C0o= 0 00 C0b= 0 0 0 CA=1
CD=0 cs=33920 DC=4 dl=015 DM=c DR=03465\r\n duty=087 DT=16240 ET= 60 FA=00050 FL=007 FX=038 GN=212a GO=00000 HA=0\r\n HG=01560 HH=02700 KT=0 LG=00832 LH
=00100 MA=-020 MS=-010 MX=0 ND=1 NI=2\r\n ns=00203 OR=1 os=0 PD=2 RA=00020 RC=0 RF=00900 RH=015 RI=1 RS=1 RX=002 SD=0\r\n SL=035 SR=1 ss=1 T0123=1000 TD=
a TF=02600 02600 02600 TK=1 TO= 0 0 0 TP=t\r\n ts=i UX=0 WM=o WR=006 XD=d xp=2 XX=00875 ZZ=0

rs 8 profile
EEProm_sig=43188. Prom_sig=17263. \n>??\r\nET= 60 ts=i XD=d GN=121a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00000 H
A=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 008 ELb=010 010 008 TNo=bcf d TNb=ccc JD= 007\r\nC0o=-2-2-2 C0b=-2-2-
2 RC=0 tlo=8 8 6 tlb=8 8 6 CA=1 TD= duty=089 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0733 25oct07 JC=3 CB=3 MD=5 DF=05000
RNA=1 sa=1 rev 3.0f cs=43188 &=1 os=

upwind:
rs 1 upwind
EEProm_sig=05088. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=323a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=bda d TNb=cbb JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=094 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0539 06nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=05088 &=1 os=

rs 2 upwind
ET= 60 ts=i XD=d GN=222a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 0
2600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=bbb d TNb=cbc JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=
095 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0536 06nov07 JC=3 CB=3 MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=40143 &=1 os=

rs 5 upwind
EEProm_sig=06092. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=222a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=dcd d TNb=dbb JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=095 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0677 30oct07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=06092 &=1 os=

rs 6 upwind
EEProm_sig=60317. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=223a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 009 ELb=009 009 010 TNo=7de d TNb=6ec JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 7 tlb=7 7 8 CA=1 TD= duty=092 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0674 09nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=60317 &=1 os=

rs 7 upwind
ET= 60 ts=i XD=d GN=332a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0?d tf=02600 02600 02
600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=99c d TNb=bac JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=0
97 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN1119 19nov07 JC=3 CB=3 MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=59940 &=1 os=

rs 8 upwind
EEProm_sig=59504. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=334a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=009 010 010 ELb=009 010 009 TNo=ddb d TNb=ecc JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=7 8 8 tlb=7 8 7 CA=1 TD= duty=093 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0673 13nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=59504 &=1 os=

rs 9 upwind
EEProm_sig=52525. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=222a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=8b8 d TNb=9c7 JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=093 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN1121 26jun06 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=52525 &=1 os=

rs 10 upwind
EEProm_sig=59030. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=111a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=ccd d TNb=bdc JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=094 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN1123 06nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=59030 &=1 os=

rs 11 upwind
EEProm_sig=29356. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=242a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 011 010 ELb=010 011 010 TNo=a7b d TNb=b9a JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 9 8 tlb=8 9 8 CA=1 TD= duty=096 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN1122 19jun06 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=29356 &=1 os=

downwind1:
rs 1 downwind1
EEProm_sig=20347. Prom_sig=17263. \n>??\r\nET= 60 ts=i XD=d GN=223a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00000 H
A=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=ccc d TNb=bcc JD= 007\r\nC0o=-2-2-2 C0b=-2-2-
2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=096 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0853 12jun08 JC=3 CB=3 MD=5 DF=05000
RNA=1 sa=1 rev 3.0f cs=20347 &=1 os=

rs 2 downwind1
T= 60 ts=i XD=d GN=222a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0?d tf=02600 02600 026
00\r\nWM=o ar=0 ZZ=0 DC=1 ELo=008 010 010 ELb=010 010 008 TNo=bba d TNb=c9a JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=6 8 8 tlb=8 8 6 CA=1 TD= duty=09
1 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0741 31oct07 JC=3 CB=3 MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=04641 &=1 os=

rs 5 downwind1
EEProm_sig=22282. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=221a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 011 ELb=010 010 008 TNo=cdd d TNb=cdc JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 9 tlb=8 8 6 CA=1 TD= duty=095 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0800 14sep06 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=22282 &=1 os=

rs 6 downwind1
EEProm_sig=10244. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=212a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=008 010 010 ELb=010 010 010 TNo=dec d TNb=edd JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=6 8 8 tlb=8 8 8 CA=1 TD= duty=093 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0744 07nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=10244 &=1 os=

rs 7 downwind1
EEProm_sig=46481. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=211a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=cce d TNb=ccd JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=094 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0745 05nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=46481 &=1 os=

rs 8 downwind1
EEProm_sig=28394. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=322a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=ced d TNb=ded JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=094 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0376 09nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=28394 &=1 os=

rs 9 downwind1
ET= 60 ts=i XD=d GN=333a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d sa=1\r\nWM=o ar=
0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=bed d TNb=ddb JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 DTR=01740 CA=1 TD= duty=087
AQ= 60 AC=1 CD=0 SR=1 UX=0 DMX=0 DTU=02320 DTC=01160 RD=o ss=1 XP=2 RF=018 DS=007 SN0738 28mar03 HF=005 JC=3 CB=3 MD=5 DF=05000 RNA=1 rev 3.0a cs=18961
&=1 os=

rs 10 downwind1
EEProm_sig=30038. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=321a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=9b9 d TNb=aba JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=095 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0856 14nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=30038 &=1 os=

rs 11 downwind1
EEProm_sig=45643. Prom_sig=46426. \n>\r\n>??\r\nSN0370 24oct07 rev 4.0t &=1 AC=1 AF=050 AH=1 AO=00300 ar=0 AQ= 60 BR=0 BX=0\r\n CF=1 C0o= 0 0 0 C0b= 0 0
0 CA=1 CD=0 cs=45643 DC=4 dl=015 DM=c DR=03465\r\n duty=086 DT=16240 ET= 60 FA=00050 FL=007 FX=038 GN=111a GO=00000 HA=0\r\n HG=01560 HH=02700 KT=0 LG=00
832 LH=00100 MA=-020 MS=-010 MX=0 ND=1 NI=2\r\n ns=00203 OR=1 os=0 PD=2 RA=00020 RC=0 RF=00900 RH=015 RI=1 RS=1 RX=002 SD=0\r\n SL=035SR=1 ss=1 T0123=100
0 TD=a TF=02600 02600 02600 TK=1 TO= 0 0 0 TP=t\r\n ts=i UX=0 WM=o WR=006 XD=d xp=2 XX=00875 ZZ=0

rs 12 downwind1
ET= 60 ts=i XD=d GN=433a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 0
2600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=009 010 009 ELb=009 010 009 TNo=acd d TNb=bce JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=7 8 7 tlb=7 8 7 CA=1 TD= duty=
091 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0672 14nov07 JC=3 CB=3 MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=62873 &=1 os=

downwind2:
rs 1 downwind2
EEProm_sig=49554. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=232a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 009 010 ELb=010 009 010 TNo=cdb d TNb=bbb JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 7 8 tlb=8 7 8 CA=1 TD= duty=093 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0671 31oct07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=49554 &=1 os=

rs 2 downwind2
ET= 60 ts=i XD=d GN=222a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2SD=0 ?d sa=1\r\nWM=o ar=0
ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=cdc d TNb=bdb JD= 007\r\nC0o=-2-D2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 DTR=01740 CA=1 TD= duty=085
AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 DTC=01160 RD=o ss=1 XP=2 RF=018 DS=007 SN0364 27may04 HF=005 JC=3 CB=3 MD=5 DF=05000RNA=1 rev 3.0a cs=14725 &=
1 os=

rs 5 downwind2
EEProm_sig=21246. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=512a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=007 010 010 ELb=010 010 010 TNo=7cd d TNb=6bc JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=5 8 8 tlb=8 8 8 CA=1 TD= duty=091 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0743 07nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=21246 &=1 os=

rs 6 downwind2
EEProm_sig=27043. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=232a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=9dd d TNb=aac JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=094 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0538 02aug06 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=27043 &=1 os=

rs 8 downwind2
EEProm_sig=47381. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=221a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 011 010 ELb=011 010 010 TNo=dad d TNb=ebc JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 9 8 tlb=9 8 8 CA=1 TD= duty=095 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0855 01nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=47381 &=1 os=

rs 9 downwind2
EEProm_sig=60173. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=222a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=cbd d TNb=dcd JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=095 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0377 12jan07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=60173 &=1 os=

rs 10 downwind2
EEProm_sig=38395. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=200a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=ded d TNb=eed JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=094 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN1120 05jun08 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=38395 &=1 os=

rs 11 downwind2
EEProm_sig=38472. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=232a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=abb d TNb=aab JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=094 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0540 14nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=38472 &=1 os=

rs 12 downwind2
EEProm_sig=38141. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=232a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=bbc d TNb=dcb JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=093 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0378 01nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=38141 &=1 os=

rs 13 downwind2
EEProm_sig=29072. Prom_sig=47942. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=222a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d sa=1\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=cbd d TNb=b9c JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=
8 8 8 tlb=8 8 8 DTR=01740 CA=1 TD= duty=085 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 DTC=01D160 RD=o ss=1 XP=2 RF=018 DS=007 SN0367 28may04 HF=005
JC=3 CB=3 MD=5 DF=05000 RNA=1 rev 3.0a cs=29072 &=1 os=

rs 15 downwind2
EEProm_sig=27999. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=322a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=009 010 010 TNo=ddd d TNb=eec JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=7 8 8 CA=1 TD= duty=092 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0366 05nov07 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=27999 &=1 os=

rs 16 downwind2
EEProm_sig=51601. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=223a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 AT=0 RS=1 BR=0 RI=1 GO=00
000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=cbc d TNb=bba JD= 007\r\nC0o=-2-2-2 C0b=
-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 CA=1 TD= duty=094 AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0247 20oct06 JC=3 CB=3 MD=5 DF=
05000 RNA=1 sa=1 rev 3.0f cs=51601 &=1 os=

AHATS status 8/10/08

Staff: Militzer, Oncley, Nguyen, Verstraete with ISS.

Temps: 94F/57F yesterday

Activity highlights:

• now in array4!!!

For more details, see the ahats logbook at https://wiki.ucar.edu/display/ahatslogbook
...but wiki.ucar.edu has been down this weekend...

Good wind direction:
array#3 (jul 29 12:30 - aug 8 06:00) had 66 hours (13 unstable, 53 stable).
array#4 (aug 9 18:00 - present) has 8 hours (0 unstable, 8 stable).

Local data storage: (we downloaded everything on 30 July)
------------------
upwind: DOWN -- we'll reset today (WiFi data okay
downwind1:/dev/sda1 57685532 7813940 49871592 14% /var/tmp/usbdisk
downwind2:/dev/sda1 57685532 7655580 50029952 13% /var/tmp/usbdisk
profile:/dev/sda1 57685532 6183912 51501620 11% /var/tmp/usbdisk
pressure1:/dev/sda1 3940812 1666816 2273996 42% /var/tmp/usbdisk
pressure2:/dev/sda1 3897204 1397804 2499400 36% /var/tmp/usbdisk

aster:/dev/sdb1 721075720 447126872 273948848 63% /media/isff2
isff:/dev/sdb1 1922890480 627207052 1198006224 35% /media/isff15

Pressure:
--------
(+/- = ~1 std deviation among variables at the same height)

11.b now measuring p with the 202BG connected between the
Bedard port and CHATS reference. P.0m poor name now is the
portable Paroscientific standard with reasonable resolution, but
low sampling rate.

p: ok, +/- 0.03 mb plot scale too large to tell
p'p': ok, +/- 0.0001 mb^2 small but perhaps okay -- only stable data to look at
w'p': ok, +/- 0.001 m/s mb
t: ok, 1 degC
Pref: ok, reconnected to volume at start of this config.
P: ok

Profile: ,select.p
--------
Was kept on during reconfig. Heights of sensors are the same.

T: ok
RH: sensor that is at 5.8m is up to 2% off. Didn't change throughout array #3 period,
now is not important in array #4.

h2o: normal, 2 g/m^3 offset from dat("Q"), except in afternoon.
w'h2o': ok, 0.025 m/s g/m^3 at midday
co2: ok, 14-17 mmol/m^3 (some nights have large values, some don't)
w'co2': ok, -0.01 m/s mmo/m^3 at midday

diag: ok? spikes in 4.8m.
samples.sonic: ok
spd: ok?, 8m now mostly higher than 7m, but could mean 8m is too high (after swap)
We proved that the WiFi antenna was not bothering it...
dir: ok
w: ok
tc: ok, still strange 7m/8m ordering.
w'w': ok
u*: ok, some imaginary values with light winds
sigma_w/u*:
w'tc': ok (lowest near the ground?)
tc'tc': ok

Upwind: ,select.u
----------------

diag: ok, 6u spikes
samples.sonic: ok
spd: ok, +/- 20 cm/s
dir: ok, obviously need new angles
w: ok, +/- 5 cm/s, 11u differs a bit
tc: ok, +/- 0.2 deg, biases somewhat larger
w'w': ok, +/- 0.005 m^2/s^2 (30 min avg for second moments)
u*: ok, +/- 2 cm/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

Downwind Lower: ,select.b
------------------------
Relatively large differences with east winds.

diag: ok
samples.sonic: ok
spd: ok, +/- 20 cm/s, 13b outlier early this morning
dir: ok, need new boom angles
w: ok, +/- 5 cm/s, pitched up a bit (we tightened it a bit too much)
tc: ok, +/- 0.2 deg, biases up to +/-0.8
w'w': ok, +/- 0.01 m^2/s^2 (30 min avg for second moments)
u*: ok, +/- 2 cm/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

Downwind Upper: ,select.t
------------------------

diag: ok
samples.sonic: ok
spd: ok, +/- 10 cm/s, 11t/10t differences (like 13b/12b above)
dir: ok, +/- 2 deg, need boom angles
w: ok, +/- 5 cm/s, a bit pitched up as well
tc: ok, +/- 0.2 degC, offsets up to 0.6 degC
w'w': ok, +/- 0.01 m^2/s^2 (30 min avg for second moments)
u*: ok, +/- 2 cm/s, som imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

----------------------------------------------------------------

Starting ~21:00 on 8/10, I see waves in some of the data.  Unfortunately, "profile" died shortly thereafter, but this might be an interesting period to look at.

From 11:00AM on Sat until early this morning, the UCAR WWW servers (including this wiki server) were down due to a software <upgrade> done in Boulder.  I'm just starting to upload some text files we've written in the meantime.

Starting 06:00 today, John, Khuong, Lou, and I started the reconfig to array 4.  This marks the end of array3.

- shutdown all adams except profile

- dropped horiz arrays

- split into 2 teams:

S&K: shifted sensors to east array; set EMT/up-guy system on bottom 13 [note new sonic installed for 13b; 5t replaced since array appeared bent]

J&L: dropped upwind 3-8

- lunch

S&K: mostly installed Pref tubing; moved downwind1&pressure1; cabled east side of array; rerouted power&e-net to upwind

J&L: dropped upwind 9-11; roughly placed trident tripods

Left at 18:00 -- turned downwind1&pressure1 to check, but array is still down.

A long day, but we're on schedule...

Still to do:

- horiz array:

    - cable west side

    - drill holes to set top EMT boom guys

    - raise and attach top boom guys

- tridents:

    - level/orient tripods

    - build last 2 trident masts

    - add sonics

    - erect

Starting 06:00 today, John, Khoung, Lou, and I started the reconfig to array 4.  This marks the end of array3.

- shutdown all adams except profile

- dropped horiz arrays

- split into 2 teams:

S&K: shifted sensors to east array; set EMT/up-guy system on bottom 13 [note new sonic installed for 13b; 5t replaced since array appeared bent]

J&L: dropped upwind 3-8

- lunch

S&K: mostly installed Pref tubing; moved downwind1&pressure1; cabled east side of array; rerouted power&e-net to upwind

J&L: dropped upwind 9-11; roughly placed trident tripods

Left at 18:00 -- turned on downwind1&pressure1 to check them out, but array is still close to ground.

A long day, but we're on schedule...

Still to do:

- horiz array:

    - cable west side

    - drill holes to set top EMT boom guys

    - raise and attach top boom guys

- tridents:

    - level/orient tripods

    - build last 2 trident masts

    - add sonics

    - erect

For my own sanity, I try here to document all the heights so far:

 (These are now updated with the array 4 values.  Not all of these make sense [different measurements when things weren't moved].  I'm working now to resolve them.)

*3/18/09, TWH added the height of the sonic measurement volume above the top of the boom (5.5? cm).

**Note that the 7m sonic was moved up "about 4-5 cm" on Aug 3 at 09:41 (see logbook entry)

 "-" means shouldn't have changed from last

"x" means value not needed

TRH at "5m" and "4m" were moved between array 2 and array 3, but measured during array 4.

final values to be used in bold

ref4 was 0.040m above ref3, but for the profiles, the reference was the top of the lowest sonic boom, which was 0.027m below ref3.

We plan to change from array 3 to array4 tomorrow.  Currently 60 hours, with 13 unstable for array3 (since Steve&I leveled it).

No <major> issues known.  <minor> issues are:

- The sonic that is now at 8m (formerly 7m) appears to have been high.  We'll replace it during the reconfig.

- Sonic at 5t appears to have top arm bent (though data look okay in daily plots?)  We'll replace it during the reconfig.

- Pressure system has pref that varies with heat convection -- presumably real.  We've been measuring pref using one of the 14 p' transducers (11b) so that this "error" can be removed from the data.

- We also have an independent 15th p' sensor, but it is only being recorded at coarse resolution at 1sps.

- Humidity on the TRH at 5.8m is still a bit odd, but it has been a very low priority.  (Steve and I already swapped sensors once.)

Wish us luck on the reconfig beginning at 6am tomorrow!  We'll start by dropping the horiz array and then split into two groups to work on both the horiz array and upwind array reconfigurations.  John and I tried erecting a trident today (without sonics) and it went <okay>, though we're still a bit nervous about adding an extra 50 lbs and $24,000 to it...

John and I started some preliminary work on array4:

- x-y dimensions from middle of east rohn tower to baseline pins for new tripods 10u, 7u, and 4u:

4u, x=3.055-1/2 rohn tube diam, y=7.778-6.379

7u: x=3.053-1/2 tube, y=9.066-6.379

10u: x=3.050-1/2 tube, y=10.374-6.379

Better estimates of y: 10u-7u= 1.288, 10u-4u=2.585

Existing 7u tripod is set up ~21.5cm upwind of baseline 7u pin (intended to be double the distance between mast and tripod center tube centers).

Confirmed that tripod 7u azimuth is close to perpendicular to crosswind line.

Shot array 4 reference to 7u tripod and east rohn tower -- ref 4 is 4.0cm above ref 3 (closer to ref 2).

To follow-up on the leak check yesterday (which showed a slow leak), I repeated this test today:

1033 P=1004.88 (pinched off)

1034 unpinched Pref (so I could read pressure easily) P=1007.29

1037 installed tee, P=1007.32

1038 blew in, P= 1029 dropping

1039 pinched entire array, P=1025 still dropping

1041 tighten tee, P=1021.5 still dropping

1043 pinched off 11b P=1018.9, still dropping

~1100-1113 reseated both reservoir endcaps with more Teflon tape and plumbers' grease.  Was able to screw in at least 3 whole turns more (due to grease lubrication)., P=1007.29 (had been open to outside)

1114 blow in, P=1048.3, dropping slowly

1117 P=1046.9, dropping slowly

1119 open 11b, P=1046.6, no obvious change in rate of dropping

1120 open entire array, P=1046.3, again no obvious change

1127 disconnect tee

1129 back to normal, P=1007.27

1134 backfill hole (again!) P=1007.6

Conclusion: reservoir had leak with 10min constant due to not-completely-seated endcaps.  They are now seated better, with a much smaller leak (though the decrease in P could have been moderated by a change in temperature, that should have increased P).

We still have the wind correlation to investigate...

John and Khoung just swapped 7m and 8m sonics.  Now 8m speeds are higher.  7m speeds are perhaps a bit low.  Now S/N720 is at 8m and 369 is at 7m.  (I just interrupted the data stream to determine this.)

I guess this means that 720 has been reading high all this time (and still is)?

6-4-09 (twh) swap occurred from 14:45 - 15:25

between 1440 - 1522, Khoung tried the pinch test again, removing all of the array of tubing.  During this test, the overall noise in p[ref].11b was significantly less, indicating that part (but not all) of the p' problems still are tubing related.

At 1525, he sucked on the reservoir and reconnected the (entire) tubing.  It appears that the tubing has a leak with a time constant of about 10min.  This was actually desirable(!), but indicates that we still have some sleuthing to do.

I finally been able to look at the data from when John removed the etherant yesterday.  During the entire 5-hour period, the speeds from 7m are higher than those at 8m.  Thus, the difference is not due to flow around the etherant.  (I had suspected that this would be the case several days ago when I noted that the speed difference (all u-component) was not a function of wind direction.)

John and Khoung are now swapping the 7m & 8m sonics to diagnose this problem further.

Still trying to work several problems:

1. P.0m is only 1Hz, only about same resolution as Pref, so not much help monitoring Pref after all.  Thus, change back to monitor Pref with 11b's 202BG
2. Data from P.0m yesterday showed Pref fluctuations.  Try to damp these by removing potential leak (old capillary leak) and add more steel wool.

~0900: opened ref volume

• - removed cap with capillary leak
• - stuffed more steel wool (about double) in this side
• - replace cap with solid cap
• - removed sample cap
• - stuffed more steel wool in this side
• - replaced cap

0925-0937: sat in this configuration to allow P.0m to monitor Pref

0937:

• - removed garden hose from CHATS system, noted that big hose fitting was somewhat loose, repaired with teflon tape?
• - changed P.0m from AHATS Pref to garden hose/Bedard
• - plumbed Pref back to CHATS system (using 11b.4.8m 202BG)

0955: covered up with dirt/space blanket again

To test the 8m sonic data, we removed the etherant at about 0800 today.  We reinstalled it about 1330.  Between these times, we were recording data from downwind1, profile, and pressure1 only on their usb drives.  Therefore, we downloaded all drives today.  However, our "spare" for upwind wouldn't mount (after we had successfully retrieved data from it off of profile or downwind1).  We're working to revive the drive (my Mac was able to reformat it with a FAT filesystem), but in the meantime, upwind's old pocketec was reinstalled.

The covars are still rerunning on the merged data, so I haven't yet been able to check on whether the sonic was affected.

At 1512, I pinched off the entire reference pressure tubing so that both Pref and P.0m measured just the reference volume.  (It turned out that P.0m's RS232 connector fell off, so we didn't get data from it for any of these tests .)

At 1618, I opened the above, but pinched off lines to only connect 6b.

At ~1745, I opened the above connecting the entire tubing system, but pinched off Pref (after reconnecting the P.0m signal).

A first look at the Pref data shows no difference -- the pressure fluctuations are still coming from the volume?

We just made several more measurements:

1. Heights of sensors on the horizontal array (between top of boom and Ref 3 mark, to check if the arrays are level and at the same heights):

 Looks like everything is within a 4mm range of each other -- pretty good to me!.

2. Distance between end of boom clamps and boom pins is 3.5cm for the PAM clamps and 3.2cm for the ASTER clamps.  Thus, the longitudinal spacing would be 3mm less than I reported in an earlier message [I'll try to revisit this and actually produce numbers.]

3. x-y spacing between upwind and downwind arrays:

x between middle of downwind Rohn tower and middle of square upwind masts: 512.5-1.6+3.1=5.140m (10u) and 511.3-1.6+3.1cm=5.128m (3u).

y between middle of boom for 1b and center of square mast for 11u: (12.76-2.585)-(5.84-0.30)=4.64m

4. Distance perpendicular to array to berm: 18.62m to 11u, 10.85m to 3u

AHATS (sometime)daily status 8/3/08

Staff: Militzer, Oncley, Nguyen, Tudor&Verstraete with ISS.
John replaced Steve yesterday.  Lou arrived the day before and
Laura leaves tomorrow.

Temps: 99F/57F yesterday

Activity highlights:
- Changed sensor to monitor Pref to free up the fast-response sensor to
make a completely independent measurement.  All measurements appear to
agree...
- I noticed dust devils in the pressure signal yesterday -- these
probably are the first ever with a tight array of pressure measurements!
- We <think> we've completed documentation of array 3.

For more details, see the ahats logbook at https://wiki.ucar.edu/display/ahatslogbook

Good wind direction:
array#3 (jul 29 12:30-present) now has 40 hours (8 unstable, 32 stable).
We're planning on switching to array #4 on Tom's schedule on 6-7 Aug.

Local data storage: (we downloaded everything on 30 July)
------------------
upwind:/dev/sda1 57685532 7961492 49724040 14% /var/tmp/usbdisk
downwind1:/dev/sda1 57685532 8849776 48835756 15% /var/tmp/usbdisk
downwind2:/dev/sda1 57685532 10443500 47242032 18% /var/tmp/usbdisk
profile:/dev/sda1 57685532 5801844 51883688 10% /var/tmp/usbdisk
pressure1:/dev/sda1 3897204 1800328 2096876 46% /var/tmp/usbdisk
pressure2:/dev/sda1 3897204 1857176 2040028 48% /var/tmp/usbdisk

aster:/dev/sdb1 721075720 368028044 353047676 52% /media/isff2
isff: /dev/sdc1 1922890480 544537872 1280675404  30% /media/isff15

Pressure:
--------
(+/- = ~1 std deviation among variables at the same height)

11.b now measuring p with the 202BG connected between the
Bedard port and CHATS reference.  P.0m [poor name] now is the
portable Paroscientific standard with reasonable resolution, but
low sampling rate.

p: ok, +/- 0.03 mb
p'p': ok, +/- 0.0005 mb^2
w'p': ok, +/- 0.001 m/s mb
t: ok, 2 degC
Pref: ok, glitch yesterday ~noon when opened to install new sensor

P: ok

Profile: [,select.p]
--------
glitches on 8m when we replaced it today (0900-0930)

T: ok
RH: sensor that is now at 5.8m is strange.  Since sonics are now at this
level, we may work to fix it.

diag: ok
samples.sonic: ok
spd: ok?, 8m still lower than 7m sometimes.  (Even after the swap today!)
Maybe the WiFi antenna is bothering it...
dir: ok
w: ok
tc: ok, 8m low by ~0.3 degC? (related to the speeds being low as well?)
w'w': ok
u*: ok, some imaginary values with light winds
sigma_w/u*:
w'tc': ok
h2o: normal, 2 g/m^3 offset from dat("Q"), except in afternoon.
w'h2o': ok, 0.03 m/s g/m^3 at midday
co2: ok, 15-20 mmol/m^3 (some nights have large values, some don't [last
night]).  Presumably related to shallow nocturnal boundary layers,
but I haven't gone through the sodar data yet.
w'co2': ok, -0.01 m/s mmo/m^3 at midday

Upwind (hts=4.8): [,select.u]
----------------

diag: ok
samples.sonic: ok
spd: ok, +/- 20 cm/s
dir: ok, why isn't this better now that angles are shot??
w: ok, +/- 5 cm/s
tc:  ok, +/- 0.2 deg, biases somewhat larger
w'w': ok, +/- 0.005 m^2/s^2  (30 min avg for second moments)
u*: ok,  +/- 2 cm/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

Downwind Lower (hts=4.8): [,select.b]
------------------------

diag: ok
samples.sonic: ok

spd: ok, +/- 20 cm/s
dir: ok, why isn't this better now that angles are shot??
w: ok, +/- 5 cm/s, leveling helped!
tc:  ok, +/- 0.2 deg, biases up to +/-0.8
w'w': ok, +/- 0.005 m^2/s^2  (30 min avg for second moments)
u*: ok,  +/- 2 cm/s, some imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

Downwind Upper (hts=5.8): [,select.t]
------------------------

diag: ok
samples.sonic: ok
spd: ok, +/- 10 cm/s, 3t outlier
dir: ok, +/- 2 deg, why isn't this better now that angles are shot??
11t outlier
w: ok, +/- 5 cm/s, leveling helped!
tc:  ok, +/- 0.2 degC, offsets up to 0.6 degC
w'w': ok, +/- 0.01 m^2/s^2  (30 min avg for second moments)
u*: ok,  +/- 2 cm/s, som imaginary
sigma_w/u*:
w'tc': ok, +/- 0.01 m/s degC
tc'tc': ok, +/- 0.05 degC^2

----------------------------------------------------------------

This is the list with viper on the top and the power supply on the bottom.

Also see  https://wiki.ucar.edu/display/ahatslogbook/2008/07/17/GPIO+boards+in+pressure+systems

Profile boom heights from top of boom (inside of clamp on the other side) to the ref 3 mark:

We noticed that a guy wire was rubbing on the bottom of the 7m sonic array, so we moved it up by about 4-5cm.  In the process, we tightened the setscrew which pitched the array up a bit.  This was done at 0941.

Since the winds (u-component) have seemed to be about 0.3m/s low (since the beginning of this experiment), we replaced it (~0830-0930 this morning).  We removed S/N 733 and installed S/N 369.

I notice in the p' time series a drop of pressure at 1323 this afternoon.  This looks like the signature of a dust devil to me (and I saw one earlier today near the trailer).

To further diagnose the p' system, I've been wanting to set up an independent system like CHATS.  Now that John has brought out another pressure sensor, we made the following changes between 1030-1200:

- Installed the cal-lab field reference Paro 760 to measure Pref (in lieu of the 14th 202BG).  Added it to profile:ttyS17 as P.0m.

- Changed the 14th 202BG (still known as p.11b.4.8m) to measure just like CHATS, between the Bedard port through the hose and the CHATS reference.

My initial look at the data show the signals 11b.4.8m and 6b.4.8m+P.0m to be roughly the same.  I'll keep watching them.

I just shot angles for all sonics.  I'll enter into the cal_files after lunch.

P.S. These are now entered (subtracting 131.7) and statsproc restarted.

Note0: that some of the times I entered as 29 jul and some as 31 jul, depending on when the sonic was last moved. 

NOTE1: Sonic U5 s/n 712's upper arm was bent / misaligned with the lower claw when checked on 8/6/08.   The value shown is for the lower arm alignment.  jwm

Note2: On 8/6/08 beginning at 10:20PDT, JohnMilitzer, took a second set of readings as noted '2'.   These were completed by 14:30PDT.   In the middle of the afternoon, it was optically more difficult to see the alignment angle.   I also took repeated readings and noticed some variance in those, but used the common value.   The large difference between our readings is disturbing, although I verified that the data-scope still has a deviation setting of 0.0
Note3: On 8/7/08, SteveO and I returned to the site and tried once more, performing a calibration of the data-scope and doing a spot check.   We noticed that the cell phones, as well as metal do cause errors on the scope.    Before and after the cal, my spot check on U3 showed 137.2 vs 137.7 after cal.   On the profile tower my post-cal readings for the lowest 3 were within .2.

Note4: Procedurally there are problems with the approach and our ability to hold the scope plumb on the camera tripod.    Tilt-angle is extremely important and can introduce many degrees of error between level and ~20deg tilt for the 7 and 8m sonics.    We can establish plumb optically using the verticle

RECOMMENDATION: reconsider putting a high quality electronic compass mounted under the theadolite on our surveyor's tripod instead of using the data-scope.   That would allow us to setup a quick and reliable level, and eliminate the tilt-angle issue of the data-scope when looking aloft.