Field Notes
<--2011-09-15 07:00:00 | 2011-09-29 07:20:00-->Other sites visited today: Mayberry
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Twitchell Rice: 2011-09-22 07:30:00 (DOY 265)
Author: Joe Verfaillie
Others: Jaclyn, Emily G.
Summary: LGR locked up, tube broken and fixed, DO sensor brought in.
| Twitchell
2011-09-22 I arrived about 7:30PST with Jaclyn and Emily G. It was clear, sunny and cool with a very light breeze from the west. The rice is beginning to yellow. The birds are swarming the north check of field 1. From our tower we could hear the recorded calls of a bird of prey that is supposed to scare of the black birds. No black birds near our tower. When we got there the LGR was locked up. The screen was on but no change in the data, no mouse or keyboard response and no data in the CR1000. I did a hard restart by pulling the power cord. The LGR read 7:24PST, 24.84C, 140.30Torr, 14.559usec, 10Hz, 1.942ppm We also discovered that the tubing had broken again just above the T at the tower. I replaced the tubing with a piece left from last time. Afterwards almost no change in values: pressure went to 139.11 and CH4 went to 1.921ppm. Jaclyn cleaned the radiometers. She said there was something that looked like blood near the net radiometer. The rain bucket was clear. I knocked down some weeds near the rain bucket. We pulled out the DO sensor and brought it in for a check since the field it drained. It will go back out after winter flood up. |
6 photos found
20110922TW_JaclynEmily.jpg ( 2011-09-22 08:31:51 ) Full size: 3648x2736
Jaclyn and Emily doing fieldwork at the rice site
20110922TW_JaclynEmilyRice.jpg ( 2011-09-22 08:32:10 ) Full size: 3648x2736
Emily and Jaclyn inspecting rice plants at edge of the field
20110922TW_Spider1.jpg ( 2011-09-22 08:39:15 ) Full size: 3648x2736
Bottom side of big spider
20110922TW_Spider2.jpg ( 2011-09-22 08:40:14 ) Full size: 3648x2736
Side view of big spider
TW_plantcam_20110923_1000.jpg ( 2011-09-23 10:00:00 ) Full size: 2560x1920
Harvest combine and trucks to the west.
TW_plantcam_20110923_1600.jpg ( 2011-09-23 16:00:00 ) Full size: 2560x1920
UC Davis in the field.
6 sets found
12 TW_met graphs found
5 TW_flux graphs found
Can't check TWSI_mixed
Can't check SIMBTWEE_met
1 TW_cam graphs found
Can't check TATWBABCSB_cam