Field Notes

<--2017-11-30 13:25:00 | 2018-01-04 11:45:00-->
Other sites visited today: Twitchell Alfalfa | Sherman Wetland | Mayberry | West Pond
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East End: 2017-12-18 12:20:00 (DOY 352)
Author: Daphne Szutu
Others: Dennis, Joe, Sam, Maricar Aguilos

Summary: Regular data collection/cleaning, Swapped LI-7500 for calibration, Upgraded LI-7550 from 8.0.0 to 8.5.0, Removed HMP60 for field test

2017-12-18
East End

We arrived at 12:20. It was sunny and mostly clear, but hazy at the horizon.

I collected met, camera, USB GHG, and miniDOT data. Dennis cleaned the radiation and flux sensors. We removed HMP60 sn G4540023 to move to TA for the HMP field test. I think the wash reservoir was empty, and Dennis refilled it.

The eosCO2 values look suspicious (they are hovering around max with intermittent spikes downward. The Licor time is also about 10 minutes off but I did not change it.

I upgraded the LI-7550 sn AIU-0397 embedded software from 8.0.0 to 8.5.0. We swapped the LI-7500 for calibration: sn 0041 came down, sn 75H-2669 went up. I changed the config file, updated the pressure coefficients, and reset the box.

LI-7500 readings:
(sn 0041 before cleaning --> sn 0041 after cleaning --> sn 75H-2669)
CO2 431 ppm --> 440 --> 451
H2O 368 mmol/m3 --> 300 --> 346
T 15.2 C --> 15.0 --> 16.3
P 102.8 kPa --> 102.8 --> 102.2
SS 92 --> 98 --> 101

LI7700 readings:
CH4 2.3 ppm --> 2.23 after cleaning
RSSI 30 --> 74 after cleaning

We left at 12:55.

0 photos found

11 sets found

14 EE_met graphs found