Field Notes

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Sherman Island: 2012-05-25 09:00:00 (DOY 146)
Author: Joe Verfaillie
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Summary: Heavy equipment oon the roads, fixed Loggernet settings, collected data.

Sherman
2012-05-25

I arrived about 9:00. It was cool and breezy with a partly cloudy sky - thunder showers moving in. The pepper weed is still in full bloom but the pollen didn’t seem to be so heavy in the air, though I think I could smell the pollen when crossing the bridge. Heavy equipment are scraping and dumping the gravel and dirt brought by CalTrans some of it going in the field to the south of our site.

When I arrived the LGR read:
9:13PST, 20.41C, 83.12Torr, 15.111usec, 10Hz, 1.920ppm

The time is about 7 minutes fast but not important. I adjusted the bypass valve to bring the pressure up to 149.9Torr, the ch4 concentration seemed to drop a bit to 1.860ppm.

The met CR10X was not connecting because it was using the same serial port as the soil co2 CR10X. The Met CR10X clock was also off -1 hour. At 9:31:00 the data logger clock read 8:31.14 and was reset.

The soil CO2 and CR1000 clocks were okay.

I collected data and fixed the Loggernet settings.

6 photos found

20120525SI_Pepperweed.jpg ( 2012-05-25 09:34:12 ) Full size: 4000x3000
Pepper weed in full bloom with dump trucks and Mt Diablo