Field Notes

<--2014-03-27 14:20:00 | 2014-04-10 13:30:00-->
Other sites visited today: Mayberry | Sherman Island | Twitchell Rice | East End | West Pond
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Twitchell Alfalfa: 2014-04-03 13:40:00 (DOY 93)
Author: Sara Knox
Others: Patty

Summary: Regular field work. All good.

Twitchell Alfalfa
2014-04-03

We arrived about 13:40 PDT. It was cloudy, cool, with a light breeze. Alfalfa growing steadily. I checked the readings while Patty did spectral and clip plots. After I did LAI 2000 measurements and measured veg height. All looked good except the soil heat flux measurements which were all giving zero this week.

7500 readings:
CO2 = 393 ppm
H2O = 425 mmol m-3
SS = 93.29
sos = 344.0 m s-1
t 17.31 C
p 101.84 kPa

Veg Height (cm): Tape measure from ground to top of plant
42, 36, 40, 42, 36, 30, 40, 33, 37, 23, 32, 28, 34, 44, 38, 43, 40, 40, 36, 34, avg = 36.4, stdev = 5.39

1 photos found

Fieldwork on the alfalfa field
TA_autocam_20140403_1315.jpg ( 2014-04-03 13:15:02 ) Full size: 1920x1440
Fieldwork on the alfalfa field

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