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Field Notes

<--2017-01-06 14:00:00 | 2017-01-31 09:20:00-->
Other sites visited today: Mayberry | Sherman Wetland | Bouldin Alfalfa | East End | West Pond | Twitchell Rice | Tonzi | Vaira | Tonzi

Twitchell Alfalfa: 2017-01-17 13:50:00 (DOY 17)
Author: Daphne Szutu
Others: Elke Eichelmann, Kyle Hemes

Summary: Regular data collection, shadow band was not rotating, LI6400 had high humidity alert

We arrived at 13:50. It was cool, overcast, and foggy. The ditch was quite muddy so we drove along the field to the tower. As we drove up, a bird (hawk?) was sitting on the camera enclosure; it pooped on the solar panel and flapped away.

Elke cleaned the solar panels, LI7500, and radiation sensors. She also re-attached bird spikes on the LI7500 and sonic.

Kyle took soil respiration measurements, but it seemed to take longer than usual. The LI6400 had a high humidity alert.

I collected met, soilco2, and GHG USB data, and swapped the camera CF card.

The 7500 read:
CO2 408.4 ppm
H2O 409.2 mmol/m3
T 8.4 C
P 102.1 kPa
SS 96.2 --> 103.5 after cleaning

We left at 14:30.

0 photos found

Graphs display:
7 sets found

Can't check TA_met
11 TA_met graphs found

Alfalfa Temperatures

Alfalfa Soil Heat Flux

Alfalfa Soil Moisture

Alfalfa Soil Temperatures Set A

Alfalfa Soil Temperatures Set B

Alfalfa Soil Temperatures Set C

NDVI Narrow Band Radiation

Soil CO2 Flux

Relative Humidity and BattV

SRS NDVI and PRI

PRI Narrow Band Channels

Can't check TA_rad
3 TA_rad graphs found

Alfalfa Radiation

Alfalfa LED NDVI Sensor

Alfalfa PAR

Can't check TA_flux
5 TA_flux graphs found

Alfalfa Sonic Wind

Alfalfa CO2 and H2O

Alfalfa Methane

Alfalfa Pressure

Alfalfa Flux Data Counts

Can't check TA_soilco2
7 TA_soilco2 graphs found

Set A Soil CO2

Set B Soil CO2

Soil CO2 Soil Moisture

Forced Diffusion CO2

Alfalfa Forerunner Soil CO2

Alfalfa Forerunner Temperatures

Alfalfa Forerunner Probe RH

No data found for TA_arable.
1 TA_cam graphs found

GCC

Can't check TATWBABCSB_cam

 
 

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This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.