Field Notes

Sherman Wetland: 2016-12-21 14:35:00 (DOY 356)
Author: Elke Eichelmann
Others: Joe Verfaillie, Sam Chamberlain

Summary: Regular data collection, LI7550 pressure coefficients missing

Arrived at 14:35. It was clear, and sunny but cool and there was a light breeze. The water level was right at the surface where the well was (could see the water around the well base).

We collected USB GHG data and collected met data. Swapped CF camera card.
There were a few ants in the datalogger box so we left some mothballs in there.

Rain gauge seemed clean although there was still lots of bird poop all over the place.

We cleaned the radiation and eddy flux sensors. Refilled the wash reservoir, it was a 3/4 full.

The pressure reading at the LI7550 (sn 1569) box is low. It looks like the coefficients werenâ€™t changed last time the LI7500 head was replaced. When we wanted to change the coefficients we realized they were not taped inside the box (probably the reason why they werenâ€™t changed last time). Need to find out what those coefficients are and write them down in the box. Need to change the coefficients next time in the field (this site also needs a new LI7500 so when the head is replaced make sure to input new coefficients).

LI7500 readings:
CO2 441.5 umol/mol
H2O 373.4 mmol/m3
T 14.8 Celsius
P 100.2 kPa
SS 101.1 -> 102 after cleaning

LI7700 readings:
CH4: 2.52
RSSI: 47.5 -> 82.7 after cleaning

Left at 14:50

0 photos found

7 sets found

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