Soil Temperature, under bare soil (10 cm)
The average temperature at a depth of 10 cm below the ground during a 15-minute interval; the surface under which the measurement is taken is not vegetated.
  • Thermistor probes sheathed in stainless steel are buried horizontally in undisturbed ground. Because the cables connecting the thermistors to the tower might conduct surface heat and divert draining rainwater, they were buried deeper than the thermistors, then angled upward.
  • Bare soil temperatures are useful for planting decisions under conventional tillage regimes (i.e., the vast majority of Oklahoma farms) and can be used to monitor soil conditions until a complete crop canopy develops.
Type Sensor Used Standard Units Accuracy
Standard - Primary Stainless Steel Encased 10K Thermistor Probe degrees Celsius ± 0.5 ºC