Equipment and Calibration History

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Ser No.DateLoc FromTitleLoc ToNotes
TE525MM 65548-615 2019-12-02 Bouldin Corn Precipitation Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
URM06 URM06-001 2019-12-02 Bouldin Corn Range Finder Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
CS451 70011234 2019-12-02 Bouldin Corn Water Level Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
HFP01 10861 2019-12-02 Bouldin Corn Heat Flux Plate C Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
HFP01 10867 2019-12-02 Bouldin Corn Heat Flux Plate B Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
HFP01 11326 2019-12-02 Bouldin Corn Heat Flux Plate A Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
CS655 17128 2019-12-02 Bouldin Corn Soil Moisture Probe B Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
CS655 17129 2019-12-02 Bouldin Corn Soil Moisture Probe A Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
CS655 17133 2019-12-02 Bouldin Corn Soil Moisture Probe C Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
ML3 M003370 2019-12-02 Bouldin Corn Soil Moisture Probe Theta Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
PQS 1 140456 2019-12-02 Bouldin Corn PAR Sensor Diffuse Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
PQS 1 140453 2019-12-02 Bouldin Corn PAR Sensor Incoming Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
PQS 1 140441 2019-12-02 Bouldin Corn PAR Sensor Reflected Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
SD130BN 0030F4D21491 2019-12-02 Bouldin Corn Camera Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
SRS-Pi PRI 913003004 2019-12-02 Bouldin Corn Narrow Band PRI Incoming Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
SRS-Pi PRI 897103002 2019-12-02 Bouldin Corn Narrow Band PRI Reflected Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
SRS-Ni NDVI 2046503357 2019-12-02 Bouldin Corn Narrow Band NDVI Reflected Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
PRB-K Type #8 00000A6D72F5 2005-01-27 Lab none Installed Tonzi Installed at Tonzi by minirhizotron transect west of soil CO2 profiles
PRB-K Type #8 00000A3D04E8 2005-01-27 Lab none Installed Tonzi Installed at Tonzi by minirhizotron transect west of soil CO2 profiles
PRB-K Type #8 00000A6D882B 2005-01-27 Lab none Installed Tonzi Installed at Tonzi by minirhizotron transect west of soil CO2 profiles
PRB-K Type #8 0000097A4AAA 2003-04-16 Lab none Installed Tonzi Installed at Tonzi closest to big tree by Liukang
PRB-K Type #8 0000097A3B40 2003-04-16 Lab none Installed Tonzi Installed at Tonzi second closest to big tree by Liukang
PRB-K Type #8 0000097A3C6E 2003-04-16 Lab none Installed Tonzi Installed at Tonzi third closets to big tree by Liukang
PRB-K Type #8 0000097A432E 2003-04-16 Lab none Installed Tonzi Installed at Tonzi furthest from big tree by Liukang
PRB-K Type #8 000007933FDE 2001-11-10 Lab none Installed Vaira Moisture Point Tower Installed at Vaira near the eddy tower by Dennis and Liukang
PRB-K Type #8 000000573FAA 2001-11-10 Lab none Installed Vaira Moisture Point Solar Installed at Vaira near the solar panels by Dennis and Liukang
PRB-K Type #8 000000574632 2001-11-10 Lab none Installed Tonzi Installed near the soil co2 measurements tower by Dennis and Liukang
PRB-K Type #8 000000402FF3 2001-11-10 Lab none Installed Tonzi Installed near the water potential table and original sap flow measurements by Dennis and Liukang
PRB-K Type #8 000000574B4B 2001-11-10 Lab none Installed Tonzi Installed near the Floor solar panels by Dennis and Liukang
PRB-K Type #8 000000402165 2001-11-10 Lab none Installed Tonzi Installed near the understory tower by Dennis and Liukang
PRB-K Type #8 000000574B4B 2019-12-03 Tonzi Removed Lab none Removed from Tonzi near the Floor solar panels. This probe has three broken pins and has not been measured in a long time but this was the first time the soil was wet enough to remove it by hand.
LI-7500A 0042 2019-12-04 Lab none Calibration Lab none Last calibration: 2019-11-12
AGC=100.5 SDM= DAC1= DAC2=
Ambient P=100.1kPa, Tair=20.3C, Tdew=10.11C
Zero Air at 850psi, AMP CA4396 408.97 at 550 Tdewspan=20.00
CO2 zero 0.9481 -> .9490 Offset: 3.19ppm
CO2 span 1.0091 -> 1.0182 Offset: -4.69ppm
H2O zero 0.8449 -> .8441 Offset: -4.7ppm
H2O span 1.0139 -> 1.0341 Offset: -.45ppm
Notes: This sensor was on the BC tower when it fell down because of a wind/rain storm on 2019-11-26. First calibration since it was brought back to the lab. The CO2 span is larger than I expected. More testing needed before putting it back up in the field.
SRS-Pr PRI 930103952 2019-12-04 Lab none Notes Lab none This sensor was not on the Bouldin Corn tower when we disassembled it on 2019-12-02. Although the equipment history says it was installed on the BC tower during initial set-up, the field note from the initial set-up on 2017-04-26 lists 2 other PRI sensors. I think this sensor was never put up on the BC tower and has remained in the lab.
LI-7700 TG1-0155 2019-12-04 Lab none Calibration Lab none Calibration Location: Lab
Last calibration: 2019-10-22
RSSI=87%, Optical RH=7%
Ambient P=99.9kPa, Tair=20.2C
Zero Air at 900psi, AMP CA4396 1.9497 at 650
CH4 Zero Offset: -0.091ppm
CH4 Span Offset: 0.011ppm
Notes: Testing this sensor after it fell down with the BC tower. First calibration. Offsets seem reasonable. May be a little less stable , or I was just impatient waiting for the span gas to equilibrate.
SRS-Ni NDVI 882103020 2019-12-02 Bouldin Corn Narrow Band NDVI Incoming Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
PA-II-SD 68c63acc07a9 2019-12-02 Bouldin Corn Air Quality Sensor Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
Mark I A001359 2019-12-02 Bouldin Corn Weather Station B Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
Mark II C002445 2019-12-02 Bouldin Corn Weather Station C Removed Lab none Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
WMP 1352 000019 2019-11-25 Loaned Returned Lab none Returned by David R. Cook at Argonne National Laboratory.
NR-LITE 041556 2019-10-01 Lab none Calibration Lab none New calibration factor of 13.4 uV/(W/m2).

Tested this sensor at Oxford Tract against AMP 4-band radiometer CNR4 sn 16084. See RT Report "Oxford Tract Radiometer Comparison - 09/2018" for details. https://nature.berkeley.edu/biometlab/bmetdata/rtreport.php?screen=view&id=27
NR-LITE 990354 2019-10-01 Lab none Calibration Lab none New calibration factor of 13.4 uV/(W/m2).

Tested this sensor at Oxford Tract against AMP 4-band radiometer CNR4 sn 16084. See RT Report "Oxford Tract Radiometer Comparison - 09/2018" for details. https://nature.berkeley.edu/biometlab/bmetdata/rtreport.php?screen=view&id=27
NR-LITE 990353 2019-10-01 Lab none Calibration Lab none New calibration factor of 12.6 uV/(W/m2).

Tested this sensor at Oxford Tract against AMP 4-band radiometer CNR4 sn 16084. See RT Report "Oxford Tract Radiometer Comparison - 09/2018" for details. https://nature.berkeley.edu/biometlab/bmetdata/rtreport.php?screen=view&id=27

I'm not sure why the calibration factor is 5% different from the previous calibration in the summer, and which is the "better" calibration to use. The summer had a wider range of Rnet values, but the sensors were more clean in the fall. I think the fall calibration is better.
NR-LITE 990352 2019-10-01 Lab none Calibration Lab none New calibration factor of 14.5 uV/(W/m2).

Tested this sensor at Oxford Tract against AMP 4-band radiometer CNR4 sn 16084. See RT Report "Oxford Tract Radiometer Comparison - 09/2018" for details. https://nature.berkeley.edu/biometlab/bmetdata/rtreport.php?screen=view&id=27

I'm not sure why the calibration factor is 5% different from the previous calibration in the summer, and which is the "better" calibration to use. The summer had a wider range of Rnet values, but the sensors were more clean in the fall. I think the fall calibration is better.
NR-LITE 990350 1999-07-29 Factory Calibration Factory Initial Factory calibration 13.5uV/W/m2
NR-LITE 990350 2019-10-01 Lab none Calibration Lab none New calibration factor of 13.0 uV/(W/m2).

Tested this sensor at Oxford Tract against AMP 4-band radiometer CNR4 sn 16084. See RT Report "Oxford Tract Radiometer Comparison - 09/2018" for details. https://nature.berkeley.edu/biometlab/bmetdata/rtreport.php?screen=view&id=27
HMP60 G4540023 2019-10-15 Lab none Tested Lab none Tested at Oxford Tract for a week against reference sensor HMP155 sn R0360206. See RT Report "HMP155 lab and Oxford test":
https://nature.berkeley.edu/biometlab/bmetdata/rtreport.php?screen=view&id=28

The sensor was was spiky and bad, so do not use.
HMP60 L1740398 2019-10-15 Lab none Tested Lab none Tested at Oxford Tract for a week against reference sensor HMP155 sn R0360206. See RT Report "HMP155 lab and Oxford test":
https://nature.berkeley.edu/biometlab/bmetdata/rtreport.php?screen=view&id=28

The sensor was within spec, so no calibration needed. (Specifications from manual: AirT= +/-0.6°C, RH= +/-3% for 0-90% RH)
HMP60 L1740398 2019-10-02 Bouldin Alfalfa 0 Removed Lab none Removed from BA CH4 release experiment and brought back to the lab.
HMP60 G4540023 2019-10-02 Bouldin Alfalfa-ReleaseEx RH & Temp Upper Removed Lab none Removed from BA CH4 release experiment and brought back to the lab.
HMP45AC T2130005 2019-10-21 Lab none Calibration Lab none Air T calibration: y=0.94336x+0.71025, R2=0.99
RH calibration: y=1.0497x+2.8693, R2=0.99
x is the sensor output, y is the calibrated value
HMP45AC T2130005 2019-10-15 Lab none Tested Lab none Tested at Oxford Tract for a week against reference sensor HMP155 sn R0360206. See RT Report "HMP155 lab and Oxford test":
https://nature.berkeley.edu/biometlab/bmetdata/rtreport.php?screen=view&id=28

See linear regression calibration in separate equipment history entry.
Mark II C002469 2019-05-23 Lab none Installed Bouldin Alfalfa Weather Station C Installed on the southwest end of the scaffolding for inter-comparison with the existing Mark I unit and our tower data. The Mark I unit was also move from near the eddy equipment to the southwest railing.
Mark II C002445 2019-05-23 Lab none Installed Bouldin Corn Weather Station C Installed on a new boom fixed to the southwest corner of the scaffolding for inter-comparison with existing Mark I unit and our tower data. The Mark I unit was also moved to the new boom.
Mark II C002714 2019-11-19 Lab none Installed Vaira Weather Station B Installed on the Vaira Radiation boom to replace the existing prototype Mark II unit.
Mark II C002471 2019-11-19 Vaira Weather Station B Removed Lab none This prototype Mark II unit was removed from the Vaira radiation boom to be replaced with a production unit of the Mark II.
Mark II C002471 2019-05-14 Lab none Installed Vaira Weather Station B Installed on the Vaira radiation boom on a new extension to the west. This unit is side by side with the existing Mark I unit for inter-comparison.
Mark I A000591 2018-12-04 Lab none Returned Disposed none Returned to Arable for post mortem on failed backup air temperature thermocouple
Mark I A001311 2019-04-25 Lab none Installed Bouldin Alfalfa Weather Station B Installed by Loreli and Mikaela from Arable for an inter-comparison experiment.
Mark I A001359 2019-04-25 Lab none Installed Bouldin Corn Weather Station B Installed by Loreli and Mikaela from Arable for inter-comparison experiment.
Mark I A001911 2019-06-20 Bouldin Corn Weather Station A Removed Lab none Removed from BC and brought back to the lab. There's nothing wrong with it, it was just the oldest of 3 Arables on the BC tower.
LI-7500A 0035 2019-11-19 Lab none Installed Vaira Gas Analyzer CO2/H2O Installed at Vaira to replace sn 75H-2180 for calibration.
LI-7500A 75H-2180 2019-11-19 Vaira Gas Analyzer CO2/H2O Removed Lab none Removed from Vaira for calibration. Replaced by sn 0035.
eosFD FD20180026 2019-11-19 Lab none Installed Tonzi Forced Diffusion Open Installed in the open at the Tonzi soil co2 profiles
eosFD FD20180068 2019-11-19 Lab none Installed Tonzi Forced Diffusion Tree 1 Installed under the tree at the Tonzi soil co2 profiles
GMP222 K1310102 2019-11-19 Lab none Installed Tonzi CO2 Probe Open Profile -0.16 Installed in the deepest (-16cm) location in the Open soil co2 profile to replace a 3% probe that was railed. This is a 1% probe.
GMT221 G0150037 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.
TS01 TS01-001 2019-11-19 Tonzi Removed Lab none Removed from near the Floor solar panels. This sensor was looking at the grass. Ana needed its narrow FOV for her emissivity testing in the lab.
LI-7500A 0418 2019-11-19 Lab none Installed Tonzi-Floor Gas Analyzer CO2/H2O Installed on Tonzi Floor after testing and calibration in the lab.
LI-7500A 75H-2182 2019-11-19 Lab none Installed Tonzi-Tower Gas Analyzer CO2/H2O Installed at Tonzi to replace sn 0065 for calibration.
LI-7500A 0065 2019-11-19 Tonzi-Tower Gas Analyzer CO2/H2O Removed Lab none Removed from Tonzi Tower for calibration. Replaced by sn 75H-2182.
LI-7500A 75H-2176 2019-11-14 Lab none Installed Bouldin Alfalfa Gas Analyzer CO2/H2O Installed at BA to replace sn 75H-2150, which was brought back to the lab for calibration.
LI-7500A 75H-2150 2019-11-14 Bouldin Alfalfa Gas Analyzer CO2/H2O Removed Lab none Removed from BA and brought back to the lab for calibration. It was replaced by 75H-2176.
LI-7500A 0041 2019-11-14 Lab none Installed East Pond Gas Analyzer CO2/H2O Installed at East Pond to replace sn 0035 for calibration.
LI-7500A 0035 2019-11-14 East Pond Gas Analyzer CO2/H2O Removed Lab none Removed from East Pond and brought back to the lab for calibration. Replaced by sn 0041.
LI-7500A 0042 2019-11-14 Lab none Installed Bouldin Corn Gas Analyzer CO2/H2O Installed at Bouldin Corn to replace sn 75H-2669 for calibration.
LI-7500A 75H-2669 2019-11-14 Bouldin Corn Gas Analyzer CO2/H2O Removed Lab none Removed from Bouldin Corn and brought back to lab for calibration. Replaced by sn 0042.
TE525MM 49187-109 2019-11-19 Sherman Barn Precipitation Tested Sherman Barn Precipitation Plug tipping bucket into the calibration CR23x and dripped 475ml of water through the bucket which should result in 100tips. Got 104 tips and turned both set screws 1/2 turn CCW.
HMP45AC U3030041 2019-11-19 Sherman Barn RH & Temp Removed Lab none Removed from SB and brought back to the lab for further testing. This sensor had some spikes in late September and starting mid-Nov hovered around 2degC.
TE525MM 65552-615 2019-11-19 Sherman Wetland Precipitation Tested Sherman Wetland Precipitation Plug tipping bucket into the calibration CR23x and dripped 475ml of water through the bucket which should result in 100tips. Got 100 tips and did not adjust the bucket.
WMP 1352 000021 2019-11-18 Loaned Returned Lab none This sensor was returned from Whendee's lab some time ago but no note was entered at the time. I have confirmed it is currently of the shelf above Daphne's desk in the lab.
PA-II-SD 84f3ebd5ffb1 2019-11-14 Lab none Loaned Loaned Loaned to Tomo Yoshino and friends for undergraduate project looking at air quality in BART stations.
LI-7500A 0418 2019-11-18 Lab none Calibration Lab none Last calibration: 2019-08-21
AGC=94.4 SDM=0 DAC1=- DAC2=-
Ambient P=100.4kPa, Tair=25.2C, Tdew=8.5C
Zero Air at 950psi, AMP CA04396 408.97 at 600 Tdewspan=20.0
CO2 zero 0.899 -> 0.8991 Offset: 0.35ppm
CO2 span 0.9976 -> 0.9988 Offset: -0.72ppm
H2O zero 0.8466 -> 0.8482 Offset: 9.4ppm
H2O span 0.9818 -> 0.9812 Offset: 0.03ppm
Notes: Removed from Vaira due to no readings but has test fine in the lab - no missing data in about a week.
LI-7500A 75H-2182 2019-11-18 Lab none Calibration Lab none Last calibration: 2019-08-01
AGC=100.0 SDM=0 DAC1=- DAC2=-
Ambient P=100.3kPa, Tair=27.5C, Tdew=9.64C
Zero Air at 950psi, AMP CA04396 408.97 at 600 Tdewspan=20.0
CO2 zero 0.8846 -> 0.8846 Offset: -0.05ppm
CO2 span 1.0226 -> 1.0217 Offset: 0.33ppm
H2O zero 0.8456 -> 0.8462 Offset: 3.6ppm
H2O span 1.0214 -> 1.0265 Offset: -0.1ppm
Notes:
LI-7500A 0035 2019-11-18 Lab none Calibration Lab none Last calibration: 2019-08-01
AGC=100.1 SDM=0 DAC1=- DAC2=-
Ambient P=100.4kPa, Tair=26.4C, Tdew=10.0C
Zero Air at 950psi, AMP CA04396 408.97 at 600 Tdewspan=20.0
CO2 zero 0.9374 -> 0.9374 Offset: 0.0ppm
CO2 span 1.0207 -> 1.0170 Offset: 1.93ppm
H2O zero 0.8984 -> 0.8980 Offset: -2.6ppm
H2O span 1.0323 -> 1.0314 Offset: 0.03ppm
Notes: by Joe
LI-7500A 0418 2019-11-13 Lab none Tested Lab none Ran overnight in the lab on the bench and the 30-minute data looked fine for CO2 and H2O. I'll let it run for a few more days in a sunny window.
LI-7500A 75H-2176 2019-11-13 Lab none Calibration Lab none Last calibration: 2019-07-24
AGC=99.5 SDM= DAC1= DAC2=
Ambient P=100.5kPa, Tair=25.6C, Tdew=11.4C
Zero Air at 900psi, AMP CA4396 408.97 at 650 Tdewspan=16.00
CO2 zero 0.8672 -> .8675 Offset: 1.36ppm
CO2 span 1.0061 -> 1.0072 Offset: -.67ppm
H2O zero 0.8521 -> .8520 Offset: -1.0ppm
H2O span 0.9182 -> .9123 Offset: .13ppm
Notes: Did an initial calibration yesterday using config file 2019-07-24, but it had a large H2O zero offset (-35.7 mmol/m3) and H2O span offset (1.53C). Today I did another calibration, again from the config file 2019-07-24. Today the H2O offset/span seem ok, so not sure what was happening yesterday. I saved today's new config file and deleted yesterday's to avoid confusion.
LI-7500A 75H-2667 2019-11-12 Lab none Calibration Lab none Last calibration: 2019-07-24
AGC=101.4 SDM= DAC1= DAC2=
Ambient P=100.7kPa, Tair=26.2C, Tdew=10.9C
Zero Air at 950psi, AMP CA4396 408.97 at 700 Tdewspan=16.00
CO2 zero 0.9413 -> .9419 Offset: 2.32ppm
CO2 span 1.0158 -> 1.019 Offset: -1.67ppm
H2O zero 0.8363 -> .8384 Offset: 12.8ppm
H2O span 1.0222 -> 1.0239 Offset: -.03ppm
Notes:
LI-7500A 0042 2019-11-12 Lab none Calibration Lab none Last calibration: 2019-07-24
AGC=99.5 SDM= DAC1= DAC2=
Ambient P=100.5kPa, Tair=26.7C, Tdew=11.3C
Zero Air at 950psi, AMP CA4396 408.97 at 700 Tdewspan=16.00
CO2 zero 0.9481 -> .9481 Offset: .26ppm
CO2 span 1.0049 -> 1.0091 Offset: -2.31ppm
H2O zero 0.8433 -> .8449 Offset: 10.0ppm
H2O span 1.0179 -> 1.0139 Offset: .08ppm
Notes:
LI-7500A 0041 2019-11-12 Lab none Calibration Lab none Last calibration: 2019-07-24
AGC=99.0 SDM= DAC1= DAC2=
Ambient P=100.5kPa, Tair=27.5C, Tdew=12.8C
Zero Air at 950psi, AMP CA4396 408.97 at 700 Tdewspan=16.00
CO2 zero 0.997 -> .9968 Offset: -.88ppm
CO2 span 1.0163 -> 1.0146 Offset: .65ppm
H2O zero 0.8201 -> .8218 Offset: 9.6ppm
H2O span 1.0243 -> 1.0267 Offset: -.05ppm
Notes:
LI-7500A 75H-2180 2019-11-07 Tonzi-Floor Gas Analyzer CO2/H2O Installed Vaira Gas Analyzer CO2/H2O Installed on Vaira to replace sn 0418 that failed probably due to bad source or detector.
LI-7500A 0418 2019-11-07 Vaira Gas Analyzer CO2/H2O Removed Lab none Removed from Vaira due to failure - probably bad source or detector. Replaced by sn 75H-2180 from Tonzi Floor.
LI-7500A 75H-2180 2019-11-07 Tonzi-Floor Gas Analyzer CO2/H2O Removed Vaira Gas Analyzer CO2/H2O Removed from Tonzi Floor for use at Vaira where the 7500 head had died probably with a bad source or detector.
TE525 48102-611 2019-11-07 Tonzi Calibration Tonzi Plug tipping bucket into the calibration CR23x and dripped 475ml of water through the bucket which should result in 100tips. Got 103 tips and did not adjust the bucket.
TE525 48132-611 2019-11-07 Tonzi Calibration Tonzi Plug tipping bucket into the calibration CR23x and dripped 475ml of water through the bucket which should result in 100tips. Got 103 tips and did not adjust the bucket.
LI-7700 TG1-0100 2010-09-21 Twitchell Rice Gas Analyzer CH4 Removed Lab none Removed from the Twitchell Rice tower for zero flux experiment at Moffett Field
LI-7500A 75H-2514 2019-10-31 Lab none Installed East End Gas Analyzer CO2/H2O Installed at East End to replace sn 75H-2176 for calibration.
LI-7500A 75H-2176 2019-10-31 East End Gas Analyzer CO2/H2O Removed Lab none Removed from East End for calibration. Replaced by sn 75H-2514.
LI-7500A 1594 2019-10-31 Lab none Installed Mayberry Gas Analyzer CO2/H2O Installed at Mayberry to replace sn 0042 for calibration.
LI-7500A 0042 2019-10-31 Mayberry Gas Analyzer CO2/H2O Removed Lab none Removed from Mayberry for calibration. Replaced by sn 1594.
TE525MM 65552-615 2019-10-31 Sherman Wetland Precipitation Tested Sherman Wetland Precipitation We tested the rain bucket but got 124 tips when we should have had 100. Spider webs on the tipper might have been the problem. The webs were cleaned out but it needs to be retested.