Field Notes

<--2013-11-21 11:00:00 | 2013-12-19 11:00:00-->
Other sites visited today: Sherman Island | Mayberry | East End | West Pond | Twitchell Alfalfa
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Twitchell Rice: 2013-12-06 09:30:00 (DOY 340)
Author: Cove Sturtevant
Others: Sara, Joe

Summary: Ice covering field! Cover to rain gauge off. Brig HMP45 fan next time.

Twitchell Rice
2013-12-06

We arrived about 09:30 PST. It was sunny, calm, and close to freezing (3 C). There was of ice atop the water in the field.

I downloaded data while Sara and Joe attended to the tower. The cover to the rain gauge was off replaced. THe HMP45 fan is dead bring new for next time.

7500 readings:
CO2 = 435 ppm (448 after cleaning)
H2O = 278 mmol m-3 (240 after cleaning)
signal strength = 84.3% (88.9% after cleaning)
t = 6 C
p = 102.8 kPa
sos = 332.3 m s-1

7700 readings:
CH4 = 2.8 ppm (same after cleaning)
RSSI = 8-14% variable (56% after cleaning and removing spider webs)
Reservoir was close to empty. There was a break in the line near the reservoir outlet. Spliced line and refilled reservoir.

Met looked good. Only 3 camera pics.

2 photos found

Cove working on the rice eddy tower
20131206TW_Tower.jpg ( 2013-12-06 11:06:06 ) Full size: 1920x1440
Cove working on the rice eddy tower

Broken ice on frozen pond water
20131206TW_Ice.jpg ( 2013-12-06 10:49:42 ) Full size: 1920x1440
Broken ice on frozen pond water

Graphs display:
6 sets found

12 TW_met graphs found

Explore the graph:Soil Heat Flux in a new window

Explore the graph:Solar Radiation in a new window

Explore the graph:Air Temperature in a new window

Explore the graph:Soil Temperature Set 1 in a new window

Explore the graph:Soil Temperature Set 2 in a new window

Explore the graph:Soil Temperature Set 3 in a new window

Explore the graph:Water Temperature in a new window

Explore the graph:RH and Pressure in a new window

Explore the graph:Soil Moisture in a new window

Explore the graph:Rain and Water Level in a new window

Explore the graph:Disolved Oxygen in a new window

Explore the graph:LED NDVI Channels in a new window

5 TW_flux graphs found

Explore the graph:Sonic Anemometer Winds in a new window

Explore the graph:LI7700 CH4 and RSSI in a new window

Explore the graph:Twitchell CH4 in a new window

Explore the graph:LI7500 CO2 and H2O in a new window

Explore the graph:Twitchel Rice Flux Counts in a new window

Can't check TWSI_mixed
Can't check SIMBTWEE_met
1 TW_cam graphs found

Explore the graph:TW Rice Autocam in a new window

Can't check TATWBABCSB_cam