All radiometer data products from NASA’s Soil Moisture Active Passive (SMAP) mission are now available at the National Snow and Ice Data Center.
SMAP is designed to measure the amount of water in the top 5 cm (2 inches) of soil, however it can also be used to estimate the sea surface salinity under normal ocean conditions and may also be used to estimate ocean wind vectors in extreme wind speed events such as tropical cyclones or hurricanes.
NASA SMAP observatory managers have determined its radar can no longer return data, but the mission continues to produce high-quality science with its radiometer instrument.
NASA's new satellite mission to map the water in the soil under our feet has completed its initial calibration of instrument science data.
Maps of global soil moisture were created using data from the radiometer on NASA's Soil Moisture Active Passive (SMAP) observatory. Each image is a composite of three days of data, centered on April 15, 18 and 22, 2015.