Field Notes

<--2015-02-19 12:45:00 | 2015-03-24 13:45:00-->
Other sites visited today: Sherman Island | Mayberry | Twitchell Rice | East End | West Pond
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Twitchell Alfalfa: 2015-03-05 13:00:00 (DOY 64)
Author: Cove Sturtevant
Others: Joe, Sara

Summary: Sheep in western half of field. Regular field work. Data download. Fixed TC7 in field.

Twitchell Alfalfa
2015-03-05

We arrived at about 13:00 PST. Sunny and warm. No wind. Sheep in western half of field and more sheep to the east. One of the dogs guarding the sheep was munching on some sheep entrails…

Downloaded data. Took spectral and soil respiration. Critter activity around the tower didn’t look any worse.

No camera images, only 10 pictures of feet…
Joe fixed TC7 in field.

7500 readings:
CO2 = 404 ppm (411 after cleaning)
H2O = 395 mmol m-3 (380 after cleaning)
signal strength = 88.5% (90.2% after cleaning)
p = 102.6 kPa
t = 21 C
sos = 344.8 m s-1

Soil CO2 good.
Rad good.

Veg Height (cm): Tape measure from ground to top of plant
25, 25, 10, 20, 26, 16, 16, 10, 16, 15, 20, 24, 6, 7, 25, 34, 7, 0, 10, 14, avg = 16.3, stdev = 8.56

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