| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|
| 5411 |
2021-08-11 |
Tonzi-SoilCO2 CO2 Probe Tree2 Profile -0.02 |
Removed |
Lab none |
Removed from -2cm in the soil co2 profile near LiuKang's tree. This profile has not been running for a while due to a break in the power line. This style of measurements are being replaced by forced diffusion chambers. |
| 3062 |
2017-09-14 |
Lab none |
Installed |
Tonzi CO2 Probe Tree2 Profile -0.02 |
Installed at Tonzi in the Tree 2 profile at -2cm after lab calibration. This is a new installation with new holes dug. |
| 3019 |
2017-08-25 |
Tonzi CO2 Probe Tree2 Profile -0.02 |
Removed |
Lab none |
Removed from Tonzi Tree 2 profile at -2 cm position for calibration |
| 2163 |
2016-02-04 |
Tonzi CO2 Probe Tree2 Profile -0.02 |
Removed |
Lab none |
Removed from Tonzi Tree 2 profile at -2cm for calibration |
| 1598 |
2014-10-09 |
Twitchell Alfalfa |
Removed |
Lab none |
Removed from the FD ambient chamber due to high readings. Replaced by sn Z2720011. |
| 1525 |
2014-08-27 |
Lab none |
Installed |
Twitchell Alfalfa |
Installed in Forced Diffusion probe 1 to replace sn Z2720011 due to zero reading |
| 1456 |
2014-05-27 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.248 + 0.9176; 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. |
| 1455 |
2014-04-08 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.027 + 0.2028; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 2238ppm, 3056ppm, and 10000ppm. Ta=25.1C, P=101.5kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Joe. |
| 1246 |
2014-03-13 |
Sherman Island |
Removed |
Lab none |
Removed from the Sherman profile B at -2cm after failing field test at atmospheric levels. |
| 1240 |
2014-01-29 |
Lab none |
Installed |
Sherman Island |
Reinstalled after lab calibration Set A at -2cm |
| 1436 |
2014-01-27 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.076 + -9.057; 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. |
| 1183 |
2014-01-24 |
Tonzi CO2 Probe Open Profile -0.08 |
Removed |
Lab none |
Removed from Tonzi open at -8cm for lab calibration |
| 1137 |
2012-02-16 |
Lab none |
Installed |
Tonzi CO2 Probe Open Profile -0.08 |
Installed at Tonzi in the Open set at -8cm |
| 1366 |
2010-03-01 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*1.04 + -83.07; 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=20.2C, P=101.9kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Jaclyn. |
| 4633 |
2010-01-08 |
Tonzi CO2 Probe Tree1 Profile -0.08 |
Location |
Tonzi CO2 Probe Tree1 Profile -0.08 |
Pulled out for ambient air reading and put back. |
| 4543 |
2008-03-06 |
Lab none |
Installed |
Tonzi CO2 Probe Open Profile -0.08 |
Installed in the East open grass profile at -8cm. mV and ppm readings in air were recorded before installation. |
| 2025 |
2005-02-17 |
Tonzi CO2 Probe Open Profile -0.02 |
Location |
Tonzi CO2 Probe Open Profile -0.02 |
Location noted at Tonzi in Open (East) profile at -2cm |
