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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 these thresholds, the table lists the largest magnitude 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 sign of the offset and temperature at which it occurs.

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Location

Sonic

Cal date

u

v
 

w

tc offset
(degC)

tc slope

Ah1

0923

15aug12

ok

8 7-23 C; -7.7 cm/s

ok

0.69

1.0223

repeat calibration

0923

 

ok

7-23 C; -7.7 cm/s

ok

0.51

1.0118

Ah2

0833

29aug12

ok

ok

ok

0.69

0.9971

repeat calibration

0833

 

ok

ok

ok

0.79

0.9938

Ah2 (after 10/19/12@10:15)

0671

 

 

 

 

 

 

Aph3

0743

05jul12

 

 

 

 

 

A4

1120

19jul12

 

 

 

 

 

Ah5

0732

09jul12

 

 

 

 

 

Ah6

0800

08dec11

 

 

 

 

 

A7

0673

18jul12

 

 

 

 

 

Ap8

0176

22aug12

ok 
 

ok

ok  

 

0.50

1.0272 

Ap9

1121

08dec11

 

 

 

 

 

Ap10

0677

17jul12

 

 

 

 

 

Ars11

0674

13aug12

 

 

 

 

 

Ap12

0855

12sep12

 

 

 

 

 

A13

0745

09jul12

 

 

 

 

 

Ap14

1124

19jul12

 

 

 

 

 

A15

1122

08dec11

 

 

 

 

 

A16

0740

28aug12

 

 

 

 

 

A17

0856

31jan12

 

 

 

 

 

A18

0744

06jul12

 

 

 

 

 

A19 (broken joint;removed 9/22/12)

0672

17jul12

NA 
 

NA

NA  
 

NA

NA  

A19 (installed 9/24/12)

0178

  9sep12  

ok

ok  
 

ok

 

0.72

1.0001  

C.1m

0200

27jun12

ok

ok

ok

-0.04

1.0192

C.2m

0197

03jul12

ok

ok

ok

0.74

0.9900

M.05m

1455

 


 

 

 

 

M.1m

1117

 


 

 

 

 

M.2m (until 9/27/12@15:03?)

0538

 

 

 

 

 

 

M.2m

0536

 


 

 

 

 

M.3m

0540

 


 

 

 

 

M.4m

0738

 


 

 

 

 

M.5m (until 9/27/12@15:03?)

0671

 

 

 

 

 

 

M.5m

0537

 


 

 

 

 

M.10m

1119

 

 

 

 

 

 

M.20m

0741