Field Notes

<--2011-06-10 10:30:00 | 2011-06-30 09:00:00-->
Other sites visited today: Sherman Island | Mayberry

Twitchell Rice: 2011-06-21 09:15:00 (DOY 172)
Author: Joe Verfaillie
Others: Jose

Summary: Standard fieldwork, cut grass, field flooded since June 16th, met Michael Marshall.

Twitchell
2011-06-21

I arrived about 9:15 with Jose. It was clear, sunny, hot with almost no wind. There was just a breath of wind from the north visible from the spider weds streaming off the equipment. The field is flooded and looks pretty good. The rice may be about 20cm tall.

All was well. I collected data. The LGR read:
8:15PST, 27.85C, 148.14Torr, 16.074usec, 10Hz, 2.190ppm

The box was a little hot and I need to get an AC unit. Also CH4 climbed to 2.4ppm before we left for Sherman.

I cut the grass around the box and tower.

The DO was reading very low and I had Jose cut it loose from the well. It looked clean and we laid it on its side in the water. Probably need to stake it up next time.

The water level was 13cm from the top of the well pipe.

Radiation sensors and rain bucket were clean. I wiped a bunch of spider webs from the sonic and LI7500.

On the way out we met Michael Mitchell. Then we left the malfunctioning HMP45 for Frank to see if he can get it fixed.

Jose did the LI2000, spectrums, clip plots and digital photos.

7 photos found

view of field site
20110621TW_Field.jpg ( 2011-06-21 08:49:58 ) Full size: 2560x1920
view of field site

view of field site
20110621TW_Site.jpg ( 2011-06-21 08:51:15 ) Full size: 2560x1920
view of field site

view of field site
20110621TW_SpiderWebs.jpg ( 2011-06-21 08:04:29 ) Full size: 2560x1920
view of field site

view of field site
20110621TW_WellDO.jpg ( 2011-06-21 08:50:21 ) Full size: 2560x1920
view of field site

People in the field - Micheal Marshall?
TW_plantcam_20110621_0951.jpg ( 2011-06-21 09:51:00 ) Full size: 2560x1920
People in the field - Micheal Marshall?

People in the field - Micheal Marshall?
TW_plantcam_20110621_1021.jpg ( 2011-06-21 10:21:00 ) Full size: 2560x1920
People in the field - Micheal Marshall?

People in the field - Micheal Marshall?
TW_plantcam_20110621_1051.jpg ( 2011-06-21 10:51:00 ) Full size: 2560x1920
People in the field - Micheal Marshall?

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