How does soil temperature affect the TIP results? Does the soil temperature need measured at various depths?
Typically, seasonal temperature variations only affect the upper 10 feet (3 m) of the soil. The soil's temperature below 15 to 20 ft (4.5 to 6 m), however, stays relatively constant year-round.
First, engineers should determine the location's constant temperature value. This value requires engineers to discern the location's annual average air temperature. To do so, engineers can consult maps or government weather service statistics.