Each instrument array at the monitoring site is equipped with three instruments to measure the volumetric water content of the soil. The depth of the instruments are indicated on the graphs.
The monitoring site is equipped with three tensiometers located at three depths. The tensiometers are connected with current transducers that can measure pore-water pressures in the range of -85kPa to 50 kPa and. The location and depth of the porous tips of each of the tensiometers are indicated on the graphs. Pore-water pressures are reported in kiloPascals (kPa). One kiloPascal is roughly equivalent to the pressure exerted by a 10-cm-deep column of water.
Each tensiometer has a built-in temperature sensor. Soil temperature measurements are used to correct measurements by the other instruments and to provide an indication of when the ground is frozen. The range is -30 to 60 degree Celsius.
Battery voltage is monitored for identifying any problems with battery charging due to solar panel or battery failures.
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