TWH has calculated the sonic tilt angles and w offsets for periods beginning with raising the mast until the mast was next lowered.

In some cases for stations 2 and 4, these periods were only for a few days because of servicing the krypton hygrometers, so I have combined those short periods with longer periods preceding or following the short periods.

Station 1

Date & Time

w offset

lean angle

lean azimuth

CDT

cm/sec

degrees

degrees

6/28 13:55

-3

0.5

54.6

7/25 11:00

-3

0.5

27.6

Station 2

Date & Time

w offset

lean angle

lean azimuth

6/24 13:05

-1

0.5

130

7/8 14:20

-1

0.8

113.3

7/15 11:25

-3

0.7

17.3

7/25 12:15

-3

0.7

27.4

8/2 10:35

-3

0.4

33.8

Station 3

Date & Time

w offset

lean angle

lean azimuth

6/23 16:00

-3

1.1

35.3

Station 4

Date & Time

w offset

lean angle

lean azimuth

6/22 17:30

-1

1.5

56.4

7/8 15:20

-2

1.4

50.1

7/25 13:40

-2

1.2

54.4