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The following table shows wind component offsets as okay if the u and v offsets are less than +/- 4 cm/s and the w offsets less than +/- 2 cm/s (between - 20 C and 30 C).  If the zero wind offset exceed exceeds these thresholds, the table lists the temperature range of the over-limit offset and the largest amplitude of the offset.  The plots of offsets versus temperature can then be examined to determine the exact nature of the offset.

The last column relates to the following project, METCRAX, in October 2013.  The operating temperature range for night-time warm-air intrusions into the crater is on the order of -10 to +20 C.  The last column note notes whether or not the sonic is suitable for that temperature range.  Several sonics not used in SOAS tested okay post-SCP.

SN

Height (m)

EOL Cal

CSI Cal

u

v

w

METCRAX?

0536

 

8/1/13

6/27/12

ok

ok

ok

OK

0537

 

8/1/13

6/21/12

ok

ok

ok

OK

0538

8 m

0538

 

7/25/13

10/17/12

32 - 49 C
-7 cm/s
@43 C

46 - 49 C
-7.3 C
@ 49 C

44-46 V
-2.5 cm/s
@ 45 C

OK

0539

 

8/2/13

6/20/12

ok

ok

ok

OK 

0540

 

 

2013 recal

 

 

 

OK

0671


8/3/13

6/28/12

ok

ok

ok

OK 

0672

32 m

0672

 

7/26/13

10/10/12

35 - 49 C
+8 cm/s
@ 47 C

36 - 49 C
-7.4 cm/s
@ 49 C

ok

OK

0673
 

26 m

7/25/1213

7/18/12

ok

25 - 44 C
+6 cm/s
@ 39 C

20 - 50 C
-3 cm/s
@ 34 C

OK

0674


7/29/13

8/13/12

ok

ok

ok

OK

0677

 

8/2/13

6/17/12

ok

16 - 30 C
-7 cm/s 
@ 23 C

ok

Requires
CSI recall

0720

RAL

7/31/13

12/31/11

ok

ok

ok

OK

0738

RAL

8/1/13

5/12/10

17 - 25 C
-4.8 cm/s
@ 21 C

10 - 45 C
-8 cm/s
@ 20 C

26 - 42 C
+2.4 cm/s
@32 C

Returned to
RAL

0739

RAL

8/1/13

8/18/10

46 - 55 C
> +8 cm/s

ok

48 - 55 C
+2.8 cm/s
@ 55 C

OK

0740

RAL

7/31/13

8/28/12

ok

ok

26 - 36 C
-2.4 cm/s
@ 31 C

OK

0800

14 m

7/29/13

6/19/12

ok

10 - 35 C
+8 cm/s
@ 21 C

17 - 53 C
-3.6 cm/s
@ 45 C

Requires
CSI recal

0853

 

8/2/13

6/21/12 

ok

ok

ok

OK 

0855

 

8/3/13

9/12/12 

-13 - 1 C
-4.4 cm/s
@ -11 C

ok

44 - 49 C
-2.8 cm/s
@ 47 C

Marginally
OK

0856

 

 

2013 recal

 

 

 

OK

1117

 

 

2013 recal

 

 

 

OK

1119

2 m

7/26/13

8/9/12

ok

49-

1119

 

7/26/12

8/9/12

ok

49-53 C
+7 cm/s
@ 53 C

1 - 44 C
-3 cm/s
@ 17 C

Marginally
OK

1120

 

 

2013 recall

 

 

 

OK

1121
 

20 m

7/26/1213

12/8/11

-14 - 24 C
-11 cm/s
@ -9 C

-14 - 44C
-9.5 cm/s
@ -7 C

-15 - 49 C
-5.6 cm/s
@ -9 C

Requires
CSI recal

1122
 

44 m

7/26/1213

12/8/11

28 - 53 C
+5.8 cm/s
@ 36 C

49 - 53 C
-4.3 cm/s
@ 53 C

48-53 C
-2.7 cm/s
@ 53 C

OK

1123 

 

 

2013 recal

 

 

 

OK

1124

 

 

 

 

 

 

 

 

 

 

 

8/2/13

7/19/12

ok

ok

ok

OK

1244

38 m

7/30/13

 

-25 -  49 C
+17 cm/s
@ 27 C

11 - 30 C
+5.5 cm/s
@ 23 C

18 - 42 C
+6 cm/s
@ 28 C

Requires
CSI recal