Equipment and Calibration

Equipment history at Bouldin Alfalfa

| ALL | | Anemometer || Barometer || Camera || Data Logger || Flux Analyzer || Forced Diffusion || Gas Analyzer || Heat Flux Plate || Infrared Temperature || Interface || Multiplexer || Narrow Band || Net Radiometer || PAR Sensor || Precipitation || Range Finder || RH & Temp || Soil Moisture Probe || Solar Controller || Solar Panel || Weather Station |

SELECT a.recno, a.eh_date, a.eh_loc1, a.eh_loc2, IF(a.eh_loc2=:loc, a.eh_locref2, a.eh_locref1) AS ref, a.eh_locref2, a.eh_title, a.eh_notes, a.eh_id, b.serialno, b.equip, b.modelno FROM equiphist a INNER JOIN equiplist b ON a.eh_id=b.recno WHERE (a.eh_loc1=:loc1 OR a.eh_loc2=:loc2) AND b.equip=:eq ORDER BY b.serialno, a.eh_date

Date Serial No. Model Action Ref Notes
Forced Diffusion
2018-07-12 FD20160001 eosFD Installed Forced Diffusion A Installed at BA under the scaffolding. Sampling frequency is 5 min.
2018-07-26 FD20160001 eosFD Removed Forced Diffusion A Removed from BA because it was not turning on after power cycling and brought back to the lab for testing. I think the chamber is fine, just needs to be off for 1 minute before being turned back on.
2018-08-07 FD20160001 eosFD Installed Forced Diffusion A Installed under the BA scaffolding over bare soil.
2020-04-17 FD20160001 eosFD Notes Forced Diffusion A I tried to add a collar to this FD chamber, but the collar did not fit. I ended up reinstalling it in the same location (NE corner under the tower) over bare soil.
2020-09-23 FD20160001 eosFD Removed Forced Diffusion A Removed from BA and brought back to the lab for testing because of noisy data. It was replaced by sn FD20180048.
2020-12-18 FD20160001 eosFD Installed Forced Diffusion A Installed to replace the FD Chamber with the high temperature startup problems.
2021-07-20 FD20160001 eosFD Maintenance Forced Diffusion A Performance check done. Referenced reset to 400ppm. Average Flux: -0.1, 0.07 STDEV Average ATM: 402.1ppm, 48.5C Average Soil: 398.1ppm, 48.2C
2023-04-11 FD20160001 eosFD Removed Forced Diffusion A Removed from BA underneath the tower. The data has been super noisy since mid March. The cable is still on the tower.
2023-05-09 FD20180026 eosFD Moved Forced Diffusion A Moved from BC to BA to replace sn FD20160001 which broke. We should have soil CO2 flux data from Whendee's chamber measurements at BC.
2024-10-09 FD20180026 eosFD Removed Forced Diffusion A Removed from BA tower and brought back to the lab. The BA field is getting plowed. Joe may use this FD chamber at Tonzi/Vaira.
2020-10-05 FD20180047 eosFD Installed Forced Diffusion A Installed at Bouldin Alfalfa replacing sn FD20180048 that has low CO2 concentration readings. Also added a relay to restart this chamber at midnight to avoid high temperature start up problem.
2020-12-18 FD20180047 eosFD Removed Forced Diffusion A Removed from Bouldin Alfalfa. This one has high temperature start up issues and was running on a relay to restart it every night. I removed the relay too but did not update the CR1000 program.
2020-09-23 FD20180048 eosFD Moved Forced Diffusion A Moved from BC to BA to replace sn FD20160001, which was brought back to the lab for testing
2020-10-05 FD20180048 eosFD Removed Forced Diffusion A Removed from Bouldin Alfalfa to check on it's low CO2 concentration readings. Replaced by sn FD20180047
2020-04-17 FD20190028 eosFD Installed Forced Diffusion B Installed with a collar at BA under the tower (SE corner) over bare soil.
2020-09-23 FD20190028 eosFD Removed Forced Diffusion B Removed from BA and brought back to the lab for testing because of noisy data
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