Field Notes

Sherman Wetland: 2021-05-13 14:30:00 (DOY 133)
Author: Daphne Szutu
Others: Joe

Summary: Regular data collection/cleaning, started sonic intercomparison again, conductivity sensor was out of water--lowered

2021-05-13
Sherman Wetland

Joe and I arrived at 14:30 PDT. It was super windy. The staff gauge read 85.5 cm. There was a dead pelican with a broken wing on the levee road just past the boardwalk entrance.

I downloaded met, camera, USB GHG and miniDOT data. I swapped miniDOT and water level sensor desiccants. Joe cleaned flux and rad sensors. The wash reservoir was 90% full; we topped it off.

We added the sonic intercomparison sn 153805 again after Joe repinned the cable in the lab. The heading is the same as the permanent sonic: 17 deg true N. I added 4 aux columns to the 7700 GHG column output. The aux coefficients were still saved from last time. We compared u, v, w, sos on both sonics and they matched reasonably well.

The conductivity sensor was out of the water; I lowered it back in.

LI-7500 readings:
CO2 406ppm
H2O 609ppm
T 21.6C
P 101.4kPa
SS 97--> 98 after cleaning
LI7700 readings:
CH4 1.98ppm
RSSI 34--> 71 after cleaning

We left around 14:55 PDT.

1 photos found

siwetland_2021_05_14_071405.jpg ( 2021-05-14 07:16:00 ) Full size: 1296x960
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