Field Notes

<--2009-12-01 12:00:00 | 2009-12-09 10:00:00-->
Other sites visited today: Twitchell Rice

Sherman Island: 2009-12-04 10:00:00 (DOY 338)
Author: Joe Verfaillie
Others:

Summary: Isotope analyzer locked again, Matteo arrived around noon, swapped 7500s.

Sherman
12/4/2009

Arrived about 10am. Foggy (but not as bad as Twitchell) and cold. Very light breeze from east.

Isotope analyzer is locked up again. Seems it only ran for a few hours after I left last time. I connected the LGR supplied router and transferred files but the analyzer locked up again just before the end of transferring. Several more lock ups and restarts before I left.

Checked the isotope tube heating. Looks like it was plugged non-functioning outlet inside the trailer. I changed outlets and made sure there was power at the thermostat. I did not change the current temperature of about 65 F.

Swapped both of the LI7500s. The trailer tower had IRGA sn 1594 and it was replaced with IRGA sn 0035. The permanent tower had IRGA sn 0042 and it was replaced with IRGA sn 0065. Both IRGAs that were installed had their internal chemicals changed and new firmware uploaded.

Matteo arrived about noontime. He cleaned the radiometers and checked on the permanent tower.

Trailer LGR ï¿½ need to swap 2um filter ï¿½ bypass valve all the way open with 140.8Torr was 131.97
11:49, 2.5877ppm, 10621ppm, 442.4 ppm, 11.95C, 140.8Torr, 14.150usec

Permanent LGR ï¿½ Pressure was 134.08 adjusted bypass valve
11:35, 2.401ppm, 18.83C, 142.7Torr, 15.002usec

Made three Ocean Optics readings under new LED NDVI sensor.

0 photos found

7 sets found

No data found for SI_mp.
11 SI_met graphs found