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Following the SCP project, we tested each sonic in a zero-wind enclosure within the EOL temperature chamber, measuring wind component offsets and sonic temperature errors over the nominal range -30 C to 55 C. 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). The sonic temperature corrections are listed as the slope and offset of a linear fit (between -20 C and 30 C), Tc = offset + slope*tc.sonic, where Tc is calculated from temperature, relative humidity, and pressure measured in the zero-wind enclosure.
Location | Sonic | Cal date | u | v | w | tc offset | tc slope | |
|---|---|---|---|---|---|---|---|---|
Ah1 | 0923 | 15aug12 |
| Ah1 |
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Ah2 | 0833 | 29aug12 |
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| 0671 cg 0833 gm |
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Ah2 (after 10/19/12@10:15) | 0671 |
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Aph3 | 0743 | Aph3 05jul12 |
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A4 | 1120 | A4 19jul12 |
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Ah5 | 0732 | Ah5 09jul12 |
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Ah6 | 0800 | Ah6 08dec11 |
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A7 | 0673 | 18jul12 A7 |
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Ap8 | 0176 | 22aug12 Ap8 |
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Ap9 | 1121 | 08dec11 Ap9 |
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Ap10 | 0677 | 17jul12 Ap10 |
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Ars11 | 0674 | 13aug12 Ars11 |
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Ap12 | 0855 | 12sep12 Ap12 |
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A13 | 0745 | 09jul12 A13 |
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Ap14 | 1124 | 19jul12 Ap14 |
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A15 | 1122 | 08dec11 A15 |
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A16 | 0740 | 28aug12 A16 |
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A17 | 0856 | 31jan12 A17 |
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A18 | 0744 | 06jul12 |
| 0744 | A18 |
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A19 | 0672 | 17jul12 |
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| 0178 | |
A19 | 0178 |
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| 0200 | |
C.1m | 0200 | 27jun12 6/27/12 | ok | ok | ok | -0.04 | 1.0192 | |
C.2m | 0197 | 03jul12 7/3/12 | ok | ok | ok | 0.74 | 0.9900 | |
| M.05m | 1455 |
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M.1m | 1117 s1 |
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M.1m 2m (until 9/27/12@15:03?) | 0538 |
| s5 |
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M.2m |
| s9 0536 |
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M.3m | 0540 |
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M.4m | 0738 s12 |
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M.4m 5m (until 9/27/12@15:03?) | 0671 |
| s14 |
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M.5m | 0537 | s16 |
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M.10m | 1119 |
| s7 |
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M.20m | 0741 | s10 |
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