| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|
| 6024 |
2022-10-05 |
Tonzi-SoilCO2 CO2 Probe Tree1 Profile -0.04 |
Removed |
Lab none |
The soil co2 gradient system has not been in good condition for a long time. Finally getting around to removing the equipment from the field: Tree1 -4cm |
| 3059 |
2017-09-14 |
Lab none |
Installed |
Tonzi CO2 Probe Tree1 Profile -0.04 |
Installed at Tonzi in the Tree 1 profile at -4cm after lab calibration. This is a new installation with new holes dug. |
| 3013 |
2017-08-25 |
Tonzi CO2 Probe Tree1 Profile -0.04 |
Removed |
Lab none |
Removed from Tonzi Tree 1 profile at -4 or -8 cm position for calibration. Probe labeled 16. |
| 2192 |
2016-02-23 |
Lab none |
Installed |
Tonzi CO2 Probe Tree1 Profile -0.04 |
Installed in the Tonzi Tree 1 profile at -4cm after lab calibration. |
| 1814 |
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 |
| 1826 |
2014-06-05 |
Sherman Island |
Removed |
Lab none |
This probe was removed from Sherman profile B at -16cm due to high readings. Replaced by sn Y0710013 |
| 1305 |
2014-05-13 |
Lab none |
Installed |
Sherman Island |
This probe was installed in Sherman Set B at -16cm to replace 3% probe sn G0150037 that has been reading high and was damp with brown slime. |
| 2091 |
2014-04-10 |
Sherman Island |
Removed |
Lab none |
Removed from Sherman profile A at -16cm, replaced with sn K1340006 |
| 1242 |
2014-01-29 |
Lab none |
Installed |
Sherman Island |
Reinstalled after lab calibration Set A at -16cm |
| 1422 |
2014-01-27 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.015 + -365.7; 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. |
| 2079 |
2014-01-23 |
Sherman Island |
Location |
Sherman Island |
Sherman Profile A -16cm |
| 1391 |
2011-10-06 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.04 + 90.53; 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=26.2C, P=101.4kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Sara. |
| 1380 |
2011-02-10 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.047 + -6.387; 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. |
