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 is vegetated.

• Thermistor probes sheathed in stainless steel (prior to December 2013) or thermocouple sensor (December 2013 and afterward) 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.