Equipment and Calibration History

Page: 1 2 3 4 5 6 7 8 9 10 11 [12] 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65
Ser No.DateLoc FromTitleLoc ToNotes
LI-7500A 0418 2021-12-01 Mayberry Gas Analyzer CO2/H2O Removed Lab none Removed from Mayberry and brought back to the lab for testing. It was not giving any data for CO2, H2O or SS. Replaced by sn 1594.
miniDOT-usb 931528 2021-12-01 Hill Slough DO Sensor Removed Lab none Removed from HS and brought back to the lab to swap its batteries.
PTB110 L2340502 2021-12-01 Bouldin Corn Barometer Removed Lab none Removed from BC because it was giving bad data of 80 kPa and brought back to the lab for testing
HMP45AC U3030041 2021-12-01 Bouldin Alfalfa none Removed Lab none Removed from the BA HMP intercomparison from wiring position DE1/2 because it was giving bad data. It was brought back to the lab for testing.
TE525MM 65560-615 2021-12-01 Bouldin Alfalfa Precipitation Tested Bouldin Alfalfa Precipitation We dripped 240ml of water through the bucket using a peristaltic pump powered with a lithium battery. This should result in 50 tips in about 20 minutes. We got 50 tips so this bucket is good to go until next year.
LI-7700 TG1-0211 2021-12-01 Hill Slough Calibration Hill Slough Calibration Location: Hill Slough
Last calibration: 2021-06-01
RSSI=72%, Optical RH=38%
Ambient P=101.6kPa, Tair=16.6C
Zero Air at 950psi, AMP CA04396 1.9317 at 1500
CH4 Zero Offset: -.066ppm
CH4 Span Offset: .0633ppm
Notes: Relatively still day. After calibration, flushed out headspace until optics RH=10% and swapped out desiccant bottle for one with fresh drierite. Zero air tank pressure uncertain--wonky regulator.
LI-7700 TG1-0423 2021-12-01 East End Calibration East End Calibration Location: East End
Last calibration: 2021-06-01
RSSI=83%, Optical RH=15%
Ambient P=101.2kPa, Tair=19.2C
Zero Air at 1200psi, AMP CA04396 1.9317 at 1800
CH4 Zero Offset: .007ppm
CH4 Span Offset: .0023ppm
Notes: Relatively still day. Did not change drierite or flush headspace with zero air. Zero air tank pressure uncertain--wonky regulator.
LI-7700 TG1-0421 2021-11-30 West Pond Calibration West Pond Calibration Location: West Pond
Last calibration: 2021-06-01
RSSI=87%, Optical RH=18%
Ambient P=101.4kPa, Tair=18.6C
Zero Air at 100psi, AMP CA04396 1.9317 at 1750
CH4 Zero Offset: .050ppm
CH4 Span Offset: .0023ppm
Notes: Relatively still day. The zero air tank pressure may have been >100psi, but the regulator was wonky. Zero was stable for 2min after applying zero.
LI-7700 TG1-0424 2021-11-30 Gilbert Tract Gas Analyzer CH4 Calibration Gilbert Tract Gas Analyzer CH4 Calibration Location: Gilbert Tract
Last calibration: 2021-06-01
RSSI=85%, Optical RH=22%
Ambient P=102.1kPa, Tair=15.2C
Zero Air at 100psi, AMP CA04396 1.9317 at 1800
CH4 Zero Offset: .032ppm
CH4 Span Offset: -.0197ppm
Notes: Relatively still day with a lot of visitors to the site. The zero air tank pressure may have been >100psi, but the regulator was wonky. Zero was stable for 2min after applying zero. Swapped out the desiccant one for one with new drierite after calibration. I didn't flush out the headspace because I wanted to preserve the zero air for more calibrations that day.
LI-7700 TG1-0155 2021-12-01 Bouldin Alfalfa Calibration Bouldin Alfalfa Calibration Location: Bouldin Alfalfa
Last calibration: 2021-05-10
RSSI=84%, Optical RH=3%
Ambient P=101.7kPa, Tair=21.4C
Zero Air at 1050psi, AMP CA04396 1.9317 at 1700
CH4 Zero Offset: .022ppm
CH4 Span Offset: -.0087ppm
Notes: Relatively still day. Zero air tank pressure uncertain--wonky regulator.
LI-7700 TG1-0357 2021-12-01 Bouldin Corn Calibration Bouldin Corn Calibration Location: Bouldin Corn
Last calibration: 2021-06-24
RSSI=73%, Optical RH=24%
Ambient P=101.7kPa, Tair=20.9C
Zero Air at 1100psi, AMP CA04396 1.9317 at 1700
CH4 Zero Offset: 0.021ppm
CH4 Span Offset: -.0017ppm
Notes: Relatively still day, lots of geese in the air. After calibration, flushed headspace with zero air until optics RH=10%. Swapped out the desiccant bottle for one with fresh drierite. Zero air tank pressure uncertain--wonky regulator.
RPI0W RPI0W-003 2021-11-04 Mayberry Removed Lab none Removed from MB and brought back to the lab for repair. It wouldn't turn on, probably because of all the repeated power cycling. I think it ended up being a bad/corrupted microSD card. I set up the camera with a fresh microSD card.
PAR-LITE 040411 2021-11-18 East End PAR Sensor Diffuse Removed Lab none Removed from the wooden 4x4 on the EE tower and brought back to the lab for inspection/repair. At least one of the cable splices is partly exposed and needs to be re-spliced.
LI-7500A 75H-2182 2021-11-30 Lab Calibration Lab Last calibration: 2021-05-25
AGC=100.0 SDM=0 DAC1=- DAC2=-
Ambient P=100.8kPa, Tair=27.1C, Tdew=12.5C
Zero Air at 1400psi, AMP CA04119 524.77 at 1700 Tdewspan=20.0
CO2 zero 0.8846 -> 0.8850 Offset: 1.7ppm
CO2 span 1.0217 -> 1.0219 Offset: -0.07ppm
H2O zero 0.8464 -> 0.8470 Offset: 4.0ppm
H2O span 1.024 -> 1.0264 Offset: -0.06ppm
Notes:
LI-7500A 75H-2180 2021-11-30 Lab Calibration Lab Last calibration: 2021-06-15
AGC=102.0 SDM=0 DAC1=- DAC2=-
Ambient P=100.9kPa, Tair=27.0C, Tdew=12.3C
Zero Air at 1400psi, AMP CA04119 524.77 at 1700 Tdewspan=20.0
CO2 zero 0.9138 -> 0.9136 Offset: -0.8ppm
CO2 span 1.0281 -> 1.0295 Offset: -0.76ppm
H2O zero 0.8901 -> 0.8924 Offset: 14.5ppm
H2O span 1.0164 -> 1.0346 Offset: -0.39ppm
Notes: Had to use config file from 2021-03-08 and enter latest zero and span values by hand. Had to add water to dew point generator.
LI-7700 TG1-0223 2021-12-01 Mayberry Gas Analyzer CH4 Calibration Mayberry Gas Analyzer CH4 Calibration Location: Mayberry
Last calibration: 2021-06-01
RSSI=85%, Optical RH=22%
Ambient P=101.8kPa, Tair=9.3C
Zero Air at 600psi, AMP CA04396 1.9317 at 1650
CH4 Zero Offset: 0.034ppm
CH4 Span Offset: -0.0157ppm
Notes: A lot of fog in the air so it was hard for RSSI to go >60 even when clean. The RSSI increased to 85 when we put the hood on. Relatively still day. After calibration, we dried down the sensor headspace with zero air until optics RH=10%. We swapped out the old drierite for fresh drierite.
miniDOT-usb 931528 2021-12-02 Lab none Installed Hill Slough DO Sensor I reinstalled the MiniDot that we removed yesterday due to dead batteries.
LI-7500A 75H-2182 2021-12-02 Lab none Installed Vaira Gas Analyzer CO2/H2O Installed at Vaira to replace sn 0042 for calibration.
LI-7500A 0042 2021-12-02 Vaira Gas Analyzer CO2/H2O Removed Lab none Removed from Vaira for calibration. Replaced by sn 75H-2182.
LI-7500A 0073 2021-12-02 Lab none Installed Tonzi-Floor Gas Analyzer CO2/H2O Installed at Tonzi-Floor to replace sn 75H-2669 for calibration.
LI-7500A 75H-2669 2021-12-02 Tonzi-Floor Gas Analyzer CO2/H2O Removed Lab none Removed from Tonzi-Floor for calibration. Replaced by sn 0073.
LI-7500A 75H-2180 2021-12-02 Lab none Installed Tonzi-Tower Gas Analyzer CO2/H2O Installed at Tonzi-Tower to replace sn 75H-2514 for calibration.
LI-7500A 75H-2514 2021-12-02 Tonzi-Tower Gas Analyzer CO2/H2O Removed Lab none Removed from Tonzi-Tower for calibration. Replaced by sn 75H-2180.
LI-7500A 1594 2021-11-30 Lab Calibration Lab Last calibration: 2021-05-25
AGC=97.5 SDM=0 DAC1=- DAC2=-
Ambient P=100.8kPa, Tair=27.6C, Tdew=12.7C
Zero Air at 1350psi, AMP CA04119 524.77 at 1700 Tdewspan=20.0
CO2 zero 0.8648 -> 0.8645 Offset: -1.4ppm
CO2 span 1.0136 -> 1.0128 Offset: 0.53ppm
H2O zero 0.8861 -> 0.8877 Offset: 8.7ppm
H2O span 1.005 -> 1.0045 Offset: 0.01ppm
Notes:
LI-7500A 0073 2021-11-30 Lab Calibration Lab Last calibration: 2021-10-16
AGC=99.7 SDM=0 DAC1=- DAC2=-
Ambient P=100.96kPa, Tair=25.3C, Tdew=10.6C
Zero Air at 1400psi, AMP CA04119 524.77 at 1700 Tdewspan=20.0
CO2 zero 0.9182 -> 0.9175 Offset: -2.7ppm
CO2 span 1 -> 1.0 Offset: -0.47ppm
H2O zero 0.8187 -> 0.8174 Offset: -7ppm
H2O span 1.0094 -> 1.0192 Offset: 0.22ppm
Notes: This is the first lab calibration since refurbishment and factory calibration at Licor. I entered the new coefficients by hand. The dew point generator was acting funky again. I added water and it seemed better. The offsets were relatively good for a unit freshly returned from the factory.
LI-7550 AIU-0614 2021-11-30 Lab none Upgrade Lab none This interface box has been in the lab for a while. We need to swap out the box at Mayberry that might have been damaged by bad power. I loaded and old Mayberry config file. Then updated the firmware from v8.5.0 to v8.8.32. There is a newer v8.9.0 firmware, but I'm not sure if it is worth updating all of our sites yet.
LI-7500A 0073 2021-10-16 Lab none Calibration Lab none Last calibration: 2021-08-31
AGC=100 SDM=0 DAC1=- DAC2=-
Ambient P=99kPa, Tair=99C, Tdew=99C
Licor at psi, Licor 750 at 99 Tdewspan=12
CO2 zero 0.957 -> 0.9182 Offset: 0ppm
CO2 span 1.0075 -> 1.0 Offset: 0ppm
H2O zero 0.7337 -> 0.8187 Offset: 0ppm
H2O span 1.0078 -> 1.0094 Offset: 0ppm
Notes: Factory calibration at Licor after replacement of chopper, detector and source. Unknown ambient conditions and offsets. This sensor was sent to Licor because its signal was noisy. Its parts are almost 20 years old so I asked to have it renovated. Licor said, "Inspected the unit and found it in operational condition. Replaced the chopper motor, the detector and the light source. Subjected the unit to environmental tests and calibration." Should be nearly as good as new.
LI-7700 TG1-0223 2021-11-23 Mayberry Gas Analyzer CH4 Upgrade Mayberry Gas Analyzer CH4 Upgraded the firmware from v1.0.27 to v1.0.29. The sensor restarted succesfully and all seems well.
eosFD FD20180047 2021-11-23 Mayberry Forced Diffusion Boom Removed Lab none Removed from MB floating boom and brought back to the lab for testing. It underwent a lot of power cycles because of a short in the system and I want to test it before we deploy it again.
HMP45A U2120013 2021-11-23 Mayberry RH & Temp Removed Lab none Removed from MB and brought back to the lab for testing. AirT has been drifting downward since late October.It was replaced by HMP155 sn T2820180.
HMP45AC T1250012 2021-11-18 Lab none Installed Bouldin Alfalfa none Installed on BA tower for an HMP45 intercomparison with the tower HMP155.
HMP45AC U3030041 2021-11-18 Lab none Installed Bouldin Alfalfa none Installed on BA tower for an HMP45 intercomparison with the tower HMP155.
HMP155 T2820180 2021-11-18 Cal Kit RH & Temp Removed Lab none Removed from BA tower at the conclusion of the HMP155 intercomparison.
HMP155 T2820183 2021-11-18 Bouldin Alfalfa Removed Lab none Removed from BA tower at the conclusion of the HMP155 intercomparison.
HMP155 T2930114 2021-11-18 Bouldin Alfalfa Removed Lab none Removed from BA tower at the conclusion of the HMP155 intercomparison.
TE525MM 65560-615 2021-11-18 Bouldin Alfalfa Precipitation Calibration Bouldin Alfalfa Precipitation We dripped 240ml of water through the bucket using a peristaltic pump powered with a lithium battery. This should result in 50 tips in about 20 minutes. We got 52 tips and I adjusted both set screws 1 turn CCW.
TE525MM 65548-615 2021-11-18 Bouldin Corn Precipitation Calibration Bouldin Corn Precipitation I adjusted the screw 1 turn CCW before testing b/c I forgot to adjust it after the previous test. We dripped 240ml of water through the bucket using a peristaltic pump powered with a lithium battery. This should result in 50 tips in about 20 minutes. We got 49 tips and I called it good until next year.
PA-II-SD 68c63acc07a9 2021-11-18 Bouldin Corn Air Quality Sensor Removed Lab none Removed from BC tower and brought back to the lab because there was some corrosion on the SD card slot
eosFD FD20180068 2021-11-17 Vaira Forced Diffusion West Removed Lab none Removed from Vaira West due to bad CO2 concentration readings
SP75 020854E-6-03-02-06905 2021-11-12 Lab none Loaned Loaned none Loaned to Adina Paytan at UCSC for temporary setup on the Yampah Marsh at Elkhorn Slough.
SP75 020854E-6-03-02-06862 2021-11-12 Lab none Loaned Loaned none Loaned to Adina Paytan at UCSC for temporary setup on the Yampah Marsh at Elkhorn Slough.
PS-30M 186580399 2021-11-12 Lab none Loaned Loaned none Loaned to Adina Paytan at UCSC for temporary setup on the Yampah Marsh at Elkhorn Slough.
HMP155 T2820183 2021-09-03 Lab none Installed Bouldin Alfalfa none Installed on the BA bouncer tower for the advection experiment in the lower T/RH location
TE525MM 65548-615 2021-11-05 Bouldin Corn Precipitation Tested Bouldin Corn Precipitation We dripped 240ml of water through the bucket using a peristaltic pump powered with a lithium battery. This should result in 50 tips in about 20 minutes. We got 52 tips but forgot to adjust the screws.
HMP155 T2930114 2021-11-05 Bouldin Alfalfa Moved Bouldin Alfalfa none Removed from main tower (lower position) at the conclusion of this year's advection experiment and installed on the main tower for an HMP intercomparison
S2-411 1050 2021-11-05 Cal Kit Narrow Band NDVI Reflected Removed Lab none Removed from BA tower at the conclusion of the rad calibration and brought back to the lab.
S2-411 1049 2021-11-05 Cal Kit Narrow Band NDVI Incoming Removed Lab none Removed from BA tower at the conclusion of the rad calibration and brought back to the lab.
PAR-LITE 060831 2021-11-05 Cal Kit PAR Sensor Incoming Removed Lab none Removed from BA tower at the conclusion of the rad calibration and brought back to the lab. This sensor will go back to AMP.
CNR4 121038 2021-11-05 Cal Kit Net Radiometer 4-way Removed Lab none Removed from BA tower at the conclusion of the rad calibration and brought back to the lab. This sensor will go back to AMP.
WM 1590 152601 2021-11-05 Bouldin Alfalfa-ADEX Anemometer Main Lower Removed Lab none Removed from main tower (lower position) and brought back to the lab at the conclusion of this year's advection experiment
HMP155 T2820183 2021-11-05 Bouldin Alfalfa none Moved Bouldin Alfalfa none Removed from bouncer tower (lower position) at the conclusion of this year's advection experiment and installed on the main tower for an HMP intercomparison
WM 1590 153805 2021-11-05 Bouldin Alfalfa-ADEX Anemometer Bouncer Lower Removed Lab none Removed from bouncer tower (lower position) and brought back to the lab at the conclusion of this year's advection experiment
HMP155 T2820180 2021-11-05 Bouldin Alfalfa-ADEX RH & Temp Bouncer Upper Moved Cal Kit RH & Temp Removed from bouncer tower (upper position) at the conclusion of this year's advection experiment and installed on the main tower for an HMP intercomparison
WM 1590 152603 2021-11-05 Bouldin Alfalfa-ADEX Anemometer Bouncer Upper Removed Lab none Removed from bouncer tower (upper position) and brought back to the lab at the conclusion of this year's advection experiment
CNR4 120788 2021-11-08 Borrowed none Received Lab none Sebastien of AMP dropped this off today as an exchange for an older 4-way radiometer reference sensor, sn 121038. Came with a mounting rod and cables only.
PQS 1 212225 2021-11-08 Borrowed none Received Lab none Sebastien of AMP dropped this off in exchange for an older reference PAR, sn 060831. It came in its own box and a rubber cap over the sensor.
CNR4 121038 2021-11-08 Lab none Returned Returned none Returned to Sebastien of AMP in exchange for a freshly calibrated 4-way radiometer CNR4 sn 120788
PAR-LITE 060831 2021-11-08 Lab none Returned Returned none Returned to Sebastien of AMP in exchange for a freshly calibrated reference PAR sn 212225
TR-5251 40415-1006 2021-11-04 Mayberry Precipitation Adjusted Mayberry Precipitation Tested tipping bucket - got 53/50 tips. Adjusted screws 1/2 turn out (CCW).
GP-001 GP20160127 2021-11-04 Lab none Installed Hill Slough CO2 Probe Installed near the miniDot on the SW corner of the platform. This sensor floats so that the sensor window is about 10cm below the water surface. There is enough slack in the cable so it can go down some more with a lower tide, but hard to say where it will be with higher tides.
miniDOT-usb 931528 2021-11-04 Lab none Installed Hill Slough DO Sensor Installed on a yellow chain near the SW corner of the platform. I think the sensor window is about 10cm above the ground
TE525 48130-611 2021-11-04 Hill Slough Precipitation Adjusted Hill Slough Precipitation The screws were adjusted 1/2 turn in (CW) before testing. The test got 51/50 tips - okay.
LI-190/R Q100420 2021-10-21 Lab none Installed Mayberry PAR Sensor Diffuse PAR Installed as part of the rotating shadow band for diffuse PAR - not working until 11-04
CR10X 35474 2021-10-21 Lab none Installed Mayberry Data Logger Diffuse PAR Installed to measure diffuse PAR from rotating shadow band.
LI-7500A 0418 2021-10-21 Mayberry Gas Analyzer CO2/H2O Adjusted Mayberry Gas Analyzer CO2/H2O Rest SS from 104 to 100 after cleaning
LI-7500A 0073 2021-09-08 Lab none Shipped Factory none Shipped to Licor for renovation. The signal is noisy and I have asked for its chopper, detector and light source to be replaced as these parts are about 20 years old.
LI-7500A 0073 2021-11-03 Factory none Returned Lab none Returned to the lab from revamp and calibration at Licor.
LI-7500A 0065 2021-10-21 Gilbert Tract Gas Analyzer CO2/H2O Adjusted Gilbert Tract Gas Analyzer CO2/H2O Reset signal strength from 108 to 100
SP75 020854E-6-03-02-06862 2021-10-26 Vaira Solar Panel SoilCO2-B Removed Lab none Removed from Vaira - not in use, was for old soil co2 system.
SP75 020854E-6-03-02-06905 2021-10-26 Vaira Solar Panel SoilCO2-A Removed Lab none Removed from Vaira - not in use, was for old soil co2 system.
SP75 020854E-6-03-02-06862 2012-02-16 Lab none Installed Vaira Solar Panel SoilCO2-B Installed to provide 24V power for soil CO2 system but mistakenly wired for 12V - fixed on 3/19
SP75 020854E-6-03-02-06905 2012-02-16 Lab none Installed Vaira Solar Panel SoilCO2-A Installed to provide 24V power for soil CO2 system but mistakenly wired for 12V - fixed on 3/19
SP75 020854E-6-03-02-06862 2012-02-09 Tonzi Solar Panel Floor H Removed Lab none Removed from the Floor solar system. This panel has not been connected to the system since at least August 2008
SP75 020854E-6-03-02-06905 2012-02-09 Tonzi Solar Panel Floor G Removed Lab none Removed from the Floor solar system. This panel has not been connected to the system since at least August 2008
TE525MM 65560-615 2021-10-21 Bouldin Alfalfa Precipitation Tested Bouldin Alfalfa Precipitation We dripped 240ml of water through the bucket using a peristaltic pump powered with a lithium battery. This should result in 50 tips in about 20 minutes. We got 54 tips and adjusted its set screws 1.5 turns CCW (1/2 turn of both screws is a 2-3% adjustment).
TE525MM 65548-615 2021-10-21 Bouldin Corn Precipitation Tested Bouldin Corn Precipitation We dripped 240ml of water through the bucket using a peristaltic pump powered with a lithium battery. This should result in 50 tips in about 20 minutes. We got 54 tips and adjusted its set screws 1.5 turns CCW (1/2 turn of both screws is a 2-3% adjustment).
TR-525M 50229-112 2021-10-21 East End Precipitation Tested East End Precipitation We dripped 240ml of water through the bucket using a peristaltic pump powered with a lithium battery. This should result in 50 tips in about 20 minutes. We got 54 tips and adjusted its set screws 1.5 turns CCW (1/2 turn of both screws is a 2-3% adjustment).
TR-5251 40415-1006 2021-10-21 Mayberry Precipitation Tested Mayberry Precipitation We dripped 240ml of water through the bucket using a peristaltic pump powered with a lithium battery. This should result in 50 tips in about 20 minutes. We got 54 tips and adjusted its set screws 1.5 turns CCW (1/2 turn of both screws is a 2-3% adjustment).
S2-411 1050 2021-10-21 Cal Kit Narrow Band NDVI Reflected Moved Cal Kit Narrow Band NDVI Reflected Moved from GT to BA as part of the radiometer cal kit to begin the calibration at BA
S2-411 1049 2021-10-21 Cal Kit Narrow Band NDVI Incoming Moved Cal Kit Narrow Band NDVI Incoming Moved from GT to BA as part of the radiometer cal kit to begin the calibration at BA
PAR-LITE 060831 2021-10-21 Cal Kit PAR Sensor Reflected Moved Cal Kit PAR Sensor Incoming Moved from GT Reflected to BA Incoming as part of the radiometer cal kit to begin the calibration at BA
CNR4 121038 2021-10-21 Cal Kit Net Radiometer 4-way Moved Cal Kit Net Radiometer 4-way Moved from GT to BA as part of the radiometer cal kit to begin the calibration at BA
CR1000 23865 2021-10-21 Cal Kit Data Logger Moved Cal Kit Data Logger Moved from GT to BA as part of the radiometer cal kit to begin the calibration at BA
miniDOT 1221 2021-10-20 Lab none Tested Lab none This sensor was covered in barnacles, the copper screen was falling apart and there are nicks in the coating on the window. I cleaned up the sensor and tested it side by side with miniDot sn 931528. Both sensors were suspended in a bucket of water with a bubbler in the bottom. The sensors were out of the stream of bubbles. Ice was added to the water bringing its temperature down from 20C to 0C. Then the dissolved O2 was recorded by both sensor over about 24 hours as the water returned to room temperature. The two miniDots matched each other by better then 2%. And they matched the theoretical O2 saturation of the water at about 4%. This sensor had a quailty flag of about 0.84 whereas the newer, uncompromised sensor (sn 931528) had a quality flag on 1.03. I think I'll send a photo of the window coating and these notes to PME to get their take, but I think it's okay to return sn 1221 to service.
miniDOT-usb 899502 2021-09-02 Lab none Installed Mayberry DO Sensor D Installed at Mayberry to replace sn 1221 that was covered with barnacles.
miniDOT 1221 2021-09-02 Mayberry DO Sensor D Removed Lab none Removed from Mayberry because it had a bunch of barnacles growing on it, the copper screen was disintegrating and the coating on the window looked damage. Replaced by sn 899502
ML2x 139/052 2021-03-17 Lab none Calibration Lab none After looking at the data recorded from 2021-03-17 to 2021-10-06 it seemed that this probe was reading too low in the spring and too high in the fall. Most years the soil gets completely saturated in the spring and completely dry in the fall. If you take the max and min values from all years they are very similar. Min: 473mV STDEV=6.8mV, Max: 913mV STDEV 24.8. Then we can use these to scale this sensor's min and max with this year's data and we get

Corrected (mV) = raw (mV) * 1.272 -187.73

And using the manual's default conversion values for mineral soil (0.05 and -5), the total conversion is:

%m = mV * 0.636 + 4.39
CNR4 160848 2019-10-21 Lab none Returned Returned none Robert returned it to Stephen around 2019-10-21 when Robert went to LBL for the weekly NGEE Tropics meeting
LI-7500A 0065 2021-09-15 Lab none Installed Gilbert Tract Gas Analyzer CO2/H2O Installed at Gilbert Tract to replace sn 0041 for calibration.
LI-7500A 0041 2021-09-15 Gilbert Tract Gas Analyzer CO2/H2O Removed Lab none Removed from Gilbert Tract for calibration. Replaced by sn 0065.
GP-001 GP20200089 2021-09-09 Lab none Installed Gilbert Tract CO2 Probe Installed at Gilbert Tract but the cable was too short - not hooked up until 2021-09-15
miniDOT-usb 906606 2021-09-09 Lab none Installed Gilbert Tract DO Sensor Installed at Gilbert Tract on a yellow chain that just barely meets the water. When the site becomes tidal we will have to have a longer chain or more likely a boardwalk to reach deeper water.
HFP01 11329 2021-09-09 Lab none Installed Gilbert Tract Heat Flux Plate C Installed at Gilbert Tract at -2cm to the west of the tower
HFP01 11328 2021-09-09 Lab none Installed Gilbert Tract Heat Flux Plate B Installed at Gilbert Tract at -2cm to the northwest of the tower
HFP01 11325 2021-09-09 Lab none Installed Gilbert Tract Heat Flux Plate A Installed at Gilbert Tract at -2cm to the southwest of the tower
TE525MM 65552-615 2021-09-15 Lab none Installed Gilbert Tract Precipitation Installed at Gilbert Tract on the northeast corn of the scaffolding.
miniDOT-usb 906606 2021-09-02 Sherman Wetland DO Sensor Removed Lab none Removed from Sherman Wetland with the decommissioning of the site.
HFP01 11329 2021-09-02 Sherman Wetland Heat Flux Plate B Removed Lab none Removed from Sherman Wetland with the decommissioning of the site. The aluminum conduit was rotting and needed to be removed.
HFP01 11328 2021-09-02 Sherman Wetland Heat Flux Plate A Removed Lab none Removed from Sherman Wetland with the decommissioning of the site. The aluminum conduit was rotting and needed to be removed.
HFP01 11325 2021-09-02 Sherman Wetland Heat Flux Plate C Removed Lab none Removed from Sherman Wetland with the decommissioning of the site. The aluminum conduit was rotting and needed to be removed.