Soil Moisture Monitoring in Indiana

Precipitation that infiltrates the ground surface and remains in pore spaces within the soil profile is called “soil moisture.” Upward water movement occurs when plant roots extract soil moisture and also when capillary forces bring moisture closer to the surface, making it susceptible to evaporation. Alternatively, downward movement of soil moisture toward the saturated zone (below the water table) results in groundwater recharge. Both these processes can result in movement of water out of the soil storage component.

Members of the Groundwater Focus Committee maintain water-balance networks to understand water movement both in and out of the soil column and are seeking to identify additional soil-moisture monitoring needs in the state.