TB05
Soil Temperature, under bare soil (5 cm)
The average temperature during a 15-minute interval at a depth of 5 centimeters below the ground; 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.
- The tower provides short duration (i.e., less than 30 minutes) intermittent shade to the soil temperature plot during late spring through early fall. In extreme instances, this shading can cause a dip in the 5-cm soil temperature of 1-2 °C.
| Type | Sensor Used | Standards Units | Accuracy |
| Standard - Secondary | Stainless Steel Encased 10K Thermistor Probe | degrees Celsius | ±0.5 °C |
Thermistor Sensor
A bare plot
TB10
Soil Temperature, under bare soil (10 cm)
The average temperature at a depth of 10 centimeters 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 | Standards Units | Accuracy |
| Standard - Secondary | Stainless Steel Encased 10K Thermistor Probe | degrees Celsius | ±0.5 °C |
Thermistor Sensor
A bare plot
TS05
Soil Temperature, under sod (5 cm)
The average temperature during a 15-minute interval at a depth of 5 centimeters below the ground; the surface under which the measurement is taken is 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.
- Similar to 10 cm soil temperature under sod but TS05 is typically above the root level of crops.
| Type | Sensor Used | Standards Units | Accuracy |
| Standard - Secondary | Stainless Steel Encased 10K Thermistor Probe | degrees Celsius | ±0.5 °C |
Thermistor Sensor
A sod plot
TS10
Soil Temperature, under sod (10 cm)
The average temperature at a depth of 10 centimeters below the ground during a 15-minute interval; the surface under which the measurement is taken is 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.
- This soil temperature reading can be very important to the vast acreage of rangeland across the state, as well as for planting decisions under reduced or no-tillage systems, for soil condition monitoring under a crop canopy, and for industries such as turfgrass.
| Type | Sensor Used | Standards Units | Accuracy |
| Standard - Secondary | Stainless Steel Encased 10K Thermistor Probe | degrees Celsius | ±0.5 °C |
Thermistor Sensor
A sod plot
TS30
Soil Temperature, under sod (30 cm)
The average temperature during a 15-minute interval at a depth of 30 centimeters below the ground; the surface under which the measurement is taken is 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.
| Type | Sensor Used | Standards Units | Accuracy |
| Standard - Secondary | Stainless Steel Encased 10K Thermistor Probe | degrees Celsius | ±0.5 °C |
Thermistor Sensor
A sod plot
