Field Notes

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

20090901TW_AtsushisBox.jpg ( 2009-09-01 10:24:22 ) Full size: 2048x1536
UC Davis leaf temperature and dew measurements