Field Notes

<--2016-12-21 14:35:00 | 2017-01-05 14:20:00-->
Other sites visited today: Twitchell Alfalfa

Sherman Wetland: 2016-12-29 12:15:00 (DOY 364)
Author: Elke Eichelmann
Others: Ingo Jaeckel

Summary: Regular data collection, LI7500 swapped for calibration

Arrived at 12:15. It was sunny but hazy and there was a light breeze.

We collected USB GHG data and collected met data. Swapped CF camera card.
Rain gauge was clogged up with bird poop again, cleaned it out.

We cleaned the eddy flux sensors. Did not refilled the wash reservoir, it was a still almost completely full.
We swapped the LI7500 head for calibration, sn 1594 came down, sn 75H-2180 went up. We had brought the correct pressure coefficients from the lab and put them in after swapping the head. The pressure reading is now up at 102.22 kPa and seems fine.

LI7500 readings:
sn 1594 (down) -> sn 75H-2180 (up)
CO2 456.14 -> 440.81 umol/mol
H2O 363.9 -> 398.5 mmol/m3
T 10.94 -> 11.52 Celsius
P 100.75 -> 102.22 kPa
SS 102.19 -> 97.77

LI7700 readings:
CH4: 2.47
RSSI: 66.3 -> 85.1 after cleaning
Left at 13:00

0 photos found

7 sets found

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