Site Section
Data & Maps
Soil Moisture Active Passive (SMAP)
Associated Agencies
National Aeronautics and Space Administration (NASA) Jet Propulsion Laboratory
The Soil Moisture Active Passive (SMAP) mission is an orbiting observatory that measures the amount of water in the surface soil everywhere on Earth. SMAP measures the amount of water in the top 5 cm (2 inches) of soil everywhere on the Earth’s surface every 3 days. It also distinguishes between ground that is frozen or thawed. This permits changes, around the world, to be observed over time scales ranging from major storms to repeated measurements of changes over the seasons.
Access
The SMAP baseline science data products are available publicly through two NASA-designated data centers: Alaska Satellite Facility (ASF) and National Snow and Ice Data Center (NSIDC).
Documentation
Representative Image
