Field Notes

Sherman Wetland: 2019-04-18 14:30:00 (DOY 108)
Author: Daphne Szutu
Others: Alex, Jiangong

Summary: Regular data collection/cleaning, swapped 7500 for calibration, wetland all green

2019-04-18
Sherman Wetland

Alex, Jiangong, and I arrived at 14:30. It was a warm, sunny, and clear day. The wetland is all green. Many cattails growing at the eastern end of the boardwalk, where it meets the levee. The water level was 84 cm.

Alex cleaned rad sensors. Jiangong cleaned flux sensors. The wash reservoir was Â¾ full; we refilled it. I collected met, camera, and USB GHG data. We swapped the 7500 for calibration: sn 0418 came down, sn 75H-2150 went up. After the swap, I uploaded a new configuration file, updated the pressure coefficients, and reset the box.

LI-7500 readings (sn 0418-->sn 75H-2150):
CO2 420ppm --> 415
H2O 536ppm --> 530
T 27.2C --> 26.76
P 101.9kPa --> 102.7
SS 98 --> 96

LI7700 readings:
CH4 2.07ppm
RSSI 43--> 77 after cleaning

We left at 14:55.

2 photos found

siwetland_2019_04_18_084405.jpg ( 2019-04-18 08:56:46 ) Full size: 1296x960
Grackles on railing and rad sensors