List of all Geosphere Maps, Data, and Models

Featured Phenomena: Soil Moisture

Soil moisture is the water that is held in the spaces between soil particles, generally in the upper 10 cm of soil; this small amount of water plays a critical role in controlling the transfer of water and heat energy between Hydrosphere, Biosphere, and Geosphere.

Arctic Spring Thawing

The radar measurements made by NASA's Soil Moisture Active Passive (SMAP) observatory are sensitive to whether land surfaces are frozen or thawed.