Field Notes

<--2014-09-18 12:00:00 | 2014-10-02 09:15:00-->
Other sites visited today: Sherman Island | Mayberry | East End | West Pond | Twitchell Alfalfa

Twitchell Rice: 2014-09-25 15:20:00 (DOY 268)
Author: Cove Sturtevant
Others: Dennis, Sara

Summary: Regular fieldwork. Swapped IRGA.

Twitchell Rice
2014-09-25

We arrived around 15:20 PDT. It was warm and partly cloudy with a very light breeze. The rice is yellow and droopy with seed. Sara did clip plots, Dennis did veg height, and I swapped the IRGA for a freshly calibrated one (removed sn 75H-2150, installed sn 75H-2176 and updated pressure cal in 7550 box).

Readings after swap:
CO2 = 405 ppm
H2O = 600 mmol m-3
signal strength = 86.96%
p = 101.9 kPa
t = 28.6 C
sos: 347.9 m s-1
CH4 = 1.88 ppm (after cleaning)
RSSI = 70% (after cleaning)

Met looked good.

Veg Height (cm): Tape measure from ground to top of plant
61, 61, 60, 67, 58, 65, 62, 61, 71, 60, 61, 61, 61, 64, 64, 62, 63, 63, 62, 63, avg = 62.5, stdev = 2.82

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Graphs display:
6 sets found

12 TW_met graphs found

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5 TW_flux graphs found

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