Field Notes

Sherman Wetland: 2019-01-31 10:20:00 (DOY 31)
Author: Daphne Szutu
Others: Kuno, Jiangong

Summary: Regular data download/collection, NDVIout spotty, 7700 clock sync error

2019-01-31
Sherman Wetland

Kuno, Jiangong, and I arrived at 10:20. It was sunny, clear, and calm, with birds in the water. There were small, green tules that were growing up around the border of dead tule patches. The water level was 75 cm.

The wash reservoir was half empty; we refilled it. I downloaded met, camera, and USB GHG data. Jiangong cleaned the flux and rad sensors.

The 7700 was disconnected in the 7550 software, so I reconnected it. There is probably no CH4 data since last week. Iâ€™m not sure why it was disconnected b/c Joe and I did not fiddle around with any Licor settings at the last site visit. After I reconnected it, there was a clock sync error; changing the 7700 clock settings from slave to automatic and resetting the box resolved the problem. We should upgrade the 7700 firmware to v.1.0.27.

The AirT and RH data look good after the HMP swap last time. The NDVIout sensor had NANs since 2019-01-19 but looked fine after a power swap. This happened earlier in January as well, so we should keep an eye on it and check the wiring next time.

LI-7500 readings:
CO2 447ppm
H2O 565ppm
T 19.2C
P 101.3kPa
SS 95--> 97

LI7700 readings:
CH4 2.5ppm
RSSI 5 --> 85 after cleaning

We left at 10:44.

0 photos found

7 sets found

Can't check MBWPEESWGT_mixed
Can't check MBEEWPSWEPGT_cam
16 SW_met graphs found