Field Notes

<--2015-04-09 10:55:00 | 2015-05-07 14:15:00-->
Other sites visited today: Sherman Island | Mayberry | Twitchell Rice | East End | West Pond
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Twitchell Alfalfa: 2015-04-23 13:00:00 (DOY 113)
Author: Joe Verfaillie
Others: Patty

Summary: Field has been mown, we clipped around ground sensors, swapped 7500, squirrels are burying the solar panels.

Alfalfa
2015-04-23

I arrived about 1:00pm with Patty. It was a mild, sunny day with a cool breeze from the west. The field has been mowed and the clippings were pretty dry looking. We cut the alfalfa around the ground sensors. These had not been cut in a long time and had thick stems. More ground squirrel activity around the tower – they partially buried the corner of one solar panel. Need to bring some repellent again.

I swapped the 7500 head
Removed sn 75H-2176: 404.78ppm CO2, 581.5mmol/m3 H2O, 88.55SS, 23.79C, 100.9kPa
Installed sn 0065: 406.4ppm CO2, 576.3mmol/m3 H2O, 71.9SS, 23.9C, 100.88kPa

Patty labeled the soil respiration collars.
Collar 1: 3.84, 3: 2.27, 4, 4.7

The 2cm Forerunner probe looked a little loose. Reburied a 2cm.

Need to bring soil corer to replace Set B 16cm thermocouple.

0 photos found

Graphs display:
7 sets found

Can't check TA_met
11 TA_met graphs found

Explore the graph:Alfalfa Temperatures in a new window

Explore the graph:Alfalfa Soil Heat Flux in a new window

Explore the graph:Alfalfa Soil Moisture in a new window

Explore the graph:Alfalfa Soil Temperatures Set A in a new window

Explore the graph:Alfalfa Soil Temperatures Set B in a new window

Explore the graph:Alfalfa Soil Temperatures Set C in a new window

Explore the graph:NDVI Narrow Band Radiation in a new window

Explore the graph:Soil CO2 Flux in a new window

Explore the graph:Relative Humidity and BattV in a new window

Explore the graph:SRS NDVI and PRI in a new window

Explore the graph:PRI Narrow Band Channels in a new window

Can't check TA_rad
3 TA_rad graphs found

Explore the graph:Alfalfa Radiation in a new window

Explore the graph:Alfalfa LED NDVI Sensor in a new window

Explore the graph:Alfalfa PAR in a new window

Can't check TA_flux
5 TA_flux graphs found

Explore the graph:Alfalfa Sonic Wind in a new window

Explore the graph:Alfalfa CO2 and H2O in a new window

Explore the graph:Alfalfa Methane in a new window

Explore the graph:Alfalfa Pressure in a new window

Explore the graph:Alfalfa Flux Data Counts in a new window

Can't check TA_soilco2
7 TA_soilco2 graphs found

Explore the graph:Set A Soil CO2 in a new window

Explore the graph:Set B Soil CO2 in a new window

Explore the graph:Soil CO2 Soil Moisture in a new window

Explore the graph:Forced Diffusion CO2 in a new window

Explore the graph:Alfalfa Forerunner Soil CO2 in a new window

Explore the graph:Alfalfa Forerunner Temperatures in a new window

Explore the graph:Alfalfa Forerunner Probe RH in a new window

No data found for TA_arable.
1 TA_cam graphs found

Explore the graph:GCC in a new window

Can't check TATWBABCSB_cam