Field Notes

Mayberry: 2020-02-06 12:00:00 (DOY 37)
Author: Daphne Szutu
Others: Camilo

Summary: Regular data collection/cleaning, water samples for Isabel, swapped 7500 for calibration, camera housing came loose--fixed

2020-02-06
Mayberry

Camilo and I arrived at 12:00 PST. It was a sunny and cool day with hazy horizons. The water level was 29 cm. The wetland is brown and the levee roads have tall, green weeds.

I collected water samples for Isabel at 12:15 PST. Camilo cleaned flux and rad sensors. I downloaded met, camera, and USB GHG data. The top half of the camera housing fell into the water when we brought it down. Camilo fixed it by tightening the screw on the top. I unwired eosGP sensor 2 from the mux but didnâ€™t remove it yet. I also moved a few of the other sensors from the old power strip to the new power strip. CDOM is still low. Ariane talked to Isabel, who thinks that the CDOM lamp/laser may be getting old. Iâ€™ll check with Turner.

We swapped the LI-7500: sn 1594 came down and sn 0065 went up. I uploaded a new calibration file, updated the pressure coefficients, and reset the box. There were 7700 clock sync errors, and resetting the box again resolved it.

LI-7500 readings (sn 1594 --> sn 1593 after cleaning --> sn 0065):
CO2 449ppm --> 451 after cleaning --> 445
H2O 297ppm --> 302 after cleaning --> 337
T 13.9C --> 13.9 after cleaning --> 14.8
P 102.0kPa --> 102.0 after cleaning --> 102.0
SS 104--> 105 after cleaning --> 99
LI7700 readings:
CH4 2.85ppm
RSSI 52--> 56 after cleaning

We left at 12:45 PST.

0 photos found

11 sets found

7 MB_flux graphs found