H51D - Earth System Science and Applications Based on a Decade of NASA Soil Moisture Active Passive (SMAP) Satellite Mission Science Data Products II Oral

The NASA SMAP satellite mission has now produced over a decade of observations. The low-frequency microwave measurements have applications spanning global water cycle and surface hydrology, global ecology and plant water stress, land ice freeze/melt dynamics, sea ice edge thickness, and eddy-scale sea surface salinity dynamics. The SMAP surface soil moisture and vegetation optical depth products are used in drought monitoring, flooding hazards assessments and crop yield forecasting, as well wildfire research. New products synergistically incorporate measurements from other missions. For example, the newly released combined SMAP and Soil Moisture Ocean Salinity (SMOS) product is a nearly daily global mapping of surface soil moisture. The merged SMAP and Sentinel-1 C-band synthetic aperture radar (SAR) data are nearly global 1 and 3 kilometer mapping of surface soil moisture with 12 days or better revisit. In the coming year the SMAP project will produce merged products with the NISAR L-band SAR measurements.