Field Notes

Sherman Wetland: 2018-06-28 13:05:00 (DOY 179)
Author: Daphne Szutu
Others: Sam, Katrina

Summary: Regular data collection/cleaning, swapped LI-7500 for calibration

2018-06-28
Sherman Wetland

We arrived at 13:05. It was breezy, sunny, and mild. The water level seems a bit higher than last time, but the land around the tower is still all dry. I refilled the wash reservoir; it was mostly full. The precip bucket funnel was plugged with bird poop; Sam cleaned it out.

I collected met, camera, and USB data (reusing the same USB stick). Sam cleaned the flux and rad sensors. We swapped the 7500 for calibration: sn 75H-2176 came down, sn 75H-2667 went up. I updated the configuration file, updated the pressure coefficients, and reset the 7550 box. There was a 7700 clock error, so I reset the 7550 box again, which solved the clock error. I also double checked the Licor columns saved in the GHG file, which seemed fine.

LI-7500 readings (sn 2176 dirty --> sn 2176 clean --> sn 2667)
CO2 370ppm --> 405 --> 402
H2O 776ppm --> 560 --> 600
T 24.5C --> 24.3 --> 24.9
P 101.3kPa --> 101.2 --> 101.9
SS 96 --> 103 --> 103

LI7700 readings
CH4 1.98ppm --> 1.95ppm after cleaning
RSSI 47ppm --> 74ppm after cleaning

We left at 13:30.

0 photos found

7 sets found

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