Equipment and Calibration

Equipment history at Twitchell Alfalfa

| ALL | | Anemometer || Battery Bank || Camera || CO2 Probe || Data Logger || Forced Diffusion || Gas Analyzer || Heat Flux Plate || Interface || LED sensor || Multiplexer || Narrow Band || Net Radiometer || PAR Sensor || Precipitation || 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
Soil Moisture Probe
2013-05-24 377/008 ML2x Installed Installed at the Twitchell Alfalfa site. This probes was installed horizontally at 10cm below the surface.
2016-03-02 377/008 ML2x Removed Removed from -10cm at the Alfalfa tower due to cable damage from farm equipment and sheep.
2016-05-17 377/008 ML2x Installed Installed at -10cm to the southeast of the soil co2 box
2018-06-13 377/008 ML2x Removed Removed with Twitchell Alfalfa site decommissioning.
2013-05-24 377/009 ML2x Installed Installed at the Twitchell Alfalfa site. This probe was installed vertically at 20cm below the surface.
2016-03-02 377/010 ML2x Removed Removed from -20cm at the Alfalfa tower due to cable damage from farm equipment and sheep.
2016-05-12 377/010 ML2x Installed Installed at -20cm to the northeast of the soil co2 box
2018-06-13 377/010 ML2x Removed Removed with Twitchell Alfalfa site decommissioning.
2018-06-13 54/007 ML2x Removed Soil Moisture Probe SoilCO2 A Removed with Twitchell Alfalfa site decommissioning.
2018-06-13 54/016 ML2x Removed Removed with Twitchell Alfalfa site decommissioning.
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