| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|
| 4171 |
2019-11-19 |
Tonzi CO2 Probe Open Profile -0.16 |
Removed |
Lab none |
Removed from the deepest (-16cm) location in the Open soil co2 profile because its measurement was railed. This is a 3% probe and was replaced by a 1% probe. |
| 3057 |
2017-09-14 |
Lab none |
Installed |
Tonzi CO2 Probe Open Profile -0.16 |
Installed at Tonzi in the Open profile at -16cm after lab calibration. This is a new installation with new holes dug. |
| 1877 |
2015-06-09 |
Twitchell Alfalfa |
Removed |
Lab none |
Removed from Set A at -16cm with upgrade of soil CO2 system |
| 1863 |
2014-08-13 |
Lab none |
Installed |
Twitchell Alfalfa |
Installed near the radiometers at Alfalfa in Set A to the south at -16cm |
| 2101 |
2014-08-07 |
Sherman Island |
Removed |
Lab none |
Removed with the rest of the soil CO2 system from the Sherman site to be redeployed at the Alfalfa site on Twitchell |
| 2094 |
2014-06-17 |
Lab none |
Installed |
Sherman Island |
Installed in Sherman profile A at -16cm to replace sn F1340006 that has been reading low. |
| 1458 |
2014-05-27 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.017 + -200.7; 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. |
| 1304 |
2014-05-13 |
Sherman Island |
Removed |
Lab none |
Removed from Sherman Set B at -16cm. This probes has been reading high and was covered with brown slime. It was replace by 3% probe sn G0150035 |
| 1245 |
2014-01-29 |
Lab none |
Installed |
Sherman Island |
Reinstalled after lab calibration Set B at -16cm |
| 1423 |
2014-01-27 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.007 + -79.91; 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. |
| 2080 |
2014-01-23 |
Sherman Island |
Location |
Sherman Island |
Sherman Profile B -16cm |
| 1393 |
2011-12-13 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.035 + -6.175; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 406ppm, 2238ppm, and 10000ppm (N2 bal). Ta=24.6C, P=101.7kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Sara. |
| 1382 |
2011-02-10 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.03 + 52.52; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 597ppm, 2238ppm, and 10000ppm (N2 bal). Ta=25.5C, P=102.4kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Melanie. |
