7/26/11

From plots of vertical velocity (mostly), wind direction, and pressure, I deduced the following times at which the masts were lowered and raised.  I entered these times into the sonic qc files (in order to delete data while the mast was down), adding 5 minutes to the raising time to allow for attaching and adjusting the back guy wire.

Date

Stn

lowered

raised

July 5

4

15:20

16:45

July 8

2

14:07

?14:14

 

4

15:08

15:14

July 15

2

11:11

11:20

 

4

13:23

13:33

July 22

2

10:28

10:44

 

4

12:15

12:25

July 25

1

09:51

10:55

 

2

11:35

12:08

 

4

13:11

13:33

Aug 2

2

10:17

10:29

 

4

11:22

11:31

1 Comment

  1. [Aug 4]

    These dates and times confirm my records.  I have one record that another student is holding in their notebook, which has to be the July 15 entry.  So I would agree that the dates and times suggested for the sonic qc files are appropriate.   Are periods also filtered out for during/immediately after heavy rain storms, like the one we had this morning around 8:00?