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Field Notes

<--2009-08-25 13:00:00 | 2009-09-14 12:00:00-->
Other sites visited today: Sherman Island

Twitchell Rice: 2009-09-01 10:17:00 (DOY 244)
Author: Joe Verfaillie
Others: Jaclyn, Oliver

Summary: Pass valve pressure back to 142.12 Torr, Generator went down couple of times fixed.

Twitchell
9/1/2009

Arrived about 10:17 with Jaclyn and Oliver. Clear, sunny, very light breeze. Still grading to the west.

LGR:
1.91 CH4 ppm, 17112 H2O ppm, 386.7 CO2 ppm, 25.46 C, 132.6 Torr, 18.46 usec, 10Hz

I adjusted the by pass valve to bring pressure back to 142.12 Torr.

Generator was down a couple of times and further times to find and fix the problem – Jim thinks it was dirty filters.

Down Up period
8/26 21:37:47 8/27 09:40:06 12hr 6min
8/27 15:37:06 8/27 16:10:36 33min
8/27 17:40:44 8/27 18:04:02 23min
8/29 01:23:19 8/29 07:32:52 6hr 10min
8/30 06:45:15 8/30 06:54:31 9min

2 photos found

view of field site
20090901TW_AtsushisBox.jpg ( 2009-09-01 10:24:22 ) Full size: 2048x1536
view of field site

view of field site
20090901TW_KiteFlying.jpg ( 2009-09-01 10:21:24 ) Full size: 2048x1536
view of field site

Graphs display:
6 sets found

12 TW_met graphs found

Soil Heat Flux

Solar Radiation

Air Temperature

Soil Temperature Set 1

Soil Temperature Set 2

Soil Temperature Set 3

Water Temperature

RH and Pressure

Soil Moisture

Rain and Water Level

Disolved Oxygen

LED NDVI Channels

5 TW_flux graphs found

Sonic Anemometer Winds

LI7700 CH4 and RSSI

Twitchell CH4

LI7500 CO2 and H2O

Twitchel Rice Flux Counts

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

TW Rice Autocam

Can't check TATWBABCSB_cam

 
 

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This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.