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Tables list three independent measurements of sonic azimuth.  I measured each row at different times, requiring independent estimates of proper alignment of datascope relative to sonic, which is the biggest source of uncertainty.  I found that the sun angle is much better for visibility of the sonics at 7 am than at 10 am, so I reshot the azimuths done prior to 7/11/08.

 The cal_file row is the value used for the sonic azimuth in the cal file in order to give winds in a coordinate system with the sonic u component normal to the array:    use + 13.7 - (325-180) = use - 131.7

 Upwind Array Sonics

date

3u

4u

5u

6u

7u

8u

9u

10u

11u

7/6

133.6

136.5

133.3

134.3

135.3

NA

133.9

134.9

133.1

7/6

133.4

135.8

132.3

134.4

134.8

132.4

133.2

134.0

133.7

7/6

133.0

135.4

132.1

134.4

134.7

134.0

131.8

132.8

132.3

7/14

133.2

133.6

132.0

132.2

134.0

133.3

132.6

132.3

132.6

7/14

132.8

135.0

131.6

132.5

133.2

131.5

132.9

132.6

132.4

7/14

132.6

135.0

132.1

132.3

133.5

132.0

132.8

132.2

131.3

use

132.9

135.0

132.1

132.3

133.6

132.3

132.8

132.4

132.1

cal_file

1.2

3.3

0.4

0.6

1.9

0.6

1.1

0.7

0.4

Profile tower Sonics

date

1.5m

3m

4m

5.5m

7m

8m

7/8

132.4

135.8

133.6

135.9

128.8

131.2

7/8

132.9

136.7

133.4

134.0

130.7

133.0

7/8

132.2

136.3

133.8

133.1

130.3

132.0

7/13

132.5

136.0

133.9

133.5

133.9

129.2

7/13

132.1

134.5

133.1

135.6

134.0

134.6

7/13

132.0

136.0

133.7

135.1

134.1

135.7

use

132.3

136.0

133.6

134.6

134.0

132.6

cal_file

  0.6

  4.3

  1.9

   2.9

  2.3

   0.9

Downwind Array, top sonics

date

3t

4t

5t

6t

7t

8t

9t

10t

11t

7/11

136.1

136.1

138.9

134.5

134.7

135.1

135.7

135.7

140.9

7/11

135.9

135.3

139.1

134.1

134.6

134.9

135.3

135.9

140.7

7/11

135.8

135.9

138.8

134.0

135.1

134.9

135.6

135.5

140.6

use

135.9

135.8

138.9

134.2

134.8

135.0

135.5

135.7

140.7

cal_file

   4.2

   4.1

   7.2

   2.5

   3.1

   3.3

  3.8

  4.0

  9.0

Downwind Array, bottom sonics

date

1b

2b

3b

4b

5b

6b

7b

8b

9b

10b

11b

12B

13B

7/12

136.3

131.8

134.3

133.8

136.3

130.9

134.5

135.8

134.4

134.5

138.5

136.8

137.0

7/12

136.3

130.8

134.4

134.1

136.0

131.8

134.0

136.3

135.2

135.1

138.6

136.6

136.7

7/13

136.1

131.5

135.1

134.2

136.4

131.6

134.1

136.1

134.8

135.3

138.7

136.5

136.9

use

136.2

131.4

134.6

134.0

136.2

131.4

134.2

136.1

134.8

135.0

138.6

136.6

136.9

cal_file

  4.5
 

-0.3

   2.9

   2.3

  4.5

-0.3

   2.5

  4.4

   3.1

  3.3

   6.9

   4.9

  5.2