| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|
| 1885 |
2015-06-09 |
Twitchell Alfalfa |
Removed |
Lab none |
Removed from forced diffusion ambient cell with upgrade of soil CO2 system |
| 1599 |
2014-10-09 |
Lab none |
Installed |
Twitchell Alfalfa |
Installed in the FD ambient chamber to replace sn Z2720014 that had high readings. |
| 1524 |
2014-08-27 |
Twitchell Alfalfa |
Removed |
Lab none |
Removed from Forced Diffusion probe 1 because it was reading zero. Replaced by sn Z2720014 |
| 1867 |
2014-08-13 |
Lab none |
Installed |
Twitchell Alfalfa |
Installed near the radiometers at Alfalfa in forced diffusion ambient cell |
| 1460 |
2014-05-27 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.176 + -287.8; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 2238ppm, and 3056ppm. Ta=20.19C, P=101.3kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Madeleine. |
| 1302 |
2014-05-13 |
Sherman Island |
Removed |
Lab none |
Removed from Sherman Set B at -2cm to be replaced by a 3% probe sn F4960019. |
| 1243 |
2014-01-29 |
Lab none |
Installed |
Sherman Island |
Reinstalled after lab calibration Set B at -2cm |
| 1434 |
2014-01-27 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.11 + 190.2; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 3056ppm, and 10000ppm. Ta=22.7C, P=102.1kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Patty. |
| 1180 |
2014-01-24 |
Tonzi CO2 Probe Tree1 Profile -0.08 |
Removed |
Lab none |
Removed from Tonzi tree #1 at -8cm for lab calibration |
| 1132 |
2012-02-16 |
Lab none |
Installed |
Tonzi CO2 Probe Tree1 Profile -0.08 |
Installed at Tonzi in the Tree1 set at -8cm |
| 1407 |
2012-02-06 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*0.9639 + -59.19; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 436ppm, 2238ppm, and 10000ppm (N2 bal). Ta=24.2C, P=101.5kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Siyan. |
| 1368 |
2010-03-02 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*0.9871 + -73.58; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 383ppm, 597ppm, and 2238ppm. Ta=22.2C, P=101.5kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Jaclyn. |
| 4637 |
2010-01-08 |
Tonzi CO2 Probe Open Profile -0.08 |
Location |
Tonzi CO2 Probe Open Profile -0.08 |
Pulled out for ambient air reading and put back. |
| 4547 |
2008-03-06 |
Lab none |
Installed |
Tonzi CO2 Probe Tree1 Profile -0.08 |
Installed in the Wast under tree profile at -8cm. mV and ppm readings in air were recorded before installation. |
| 2026 |
2005-02-17 |
Tonzi CO2 Probe Open Profile -0.04 |
Location |
Tonzi CO2 Probe Open Profile -0.04 |
Location noted at Tonzi in Open (East) profile at -4cm |
