SMAP, or Soil Moisture Active Passive, is an Earth satellite mission that measures and maps Earth's soil moisture and freeze/thaw state to better understand terrestrial water, carbon and energy cycles.

Near real-time soil moisture data from the Soil Moisture Active Passive (SMAP) L-Band Radiometer instrument are available through Land, Atmosphere Near real-time Capability for Earth observation (LANCE).

3 days ago · A satellite to map soil moisture, detecting whether soils are frozen or thawed, to help scientists understand the links between Earth's water, energy, and carbon cycles, and improve predictions of weather, climate, floods, and droughts.

The SMAP mission has made science data products available to the public through two NASA-designated Earth science data centers, the Alaska Satellite Facility (for Level 1 radar products) and the National Snow and Ice Data Center (for all other products).

Jan 31, 2015 · SMAP measures surface soil conditions everywhere on Earth every two to three days, distinguishing between ground that is frozen or thawed. In ground that is not frozen or covered in water, SMAP measures how much water is in the top layer of soil.

Jan 31, 2015 · Soil Moisture Active Passive, or SMAP, is an Earth satellite mission designed to measure and map Earth's soil moisture and freeze/thaw state to better understand terrestrial water, carbon and energy cycles.

SMAP monthly sea surface salinity maps (Version 6) are available below in Mollweide (global), Northern Hemisphere and Southern Hemisphere projections. Click on any of the images below to see larger versions.

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.

SMAP provides a capability for global mapping of soil moisture and freeze/thaw state with unprecedented accuracy, resolution, and coverage.

Soil Moisture Active Passive (SMAP) is a NASA environmental monitoring satellite that measures soil moisture across the planet. It is designed to collect a global 'snapshot' of soil moisture every 2 to 3 days.