98 datasets

NASA Earthdata CMR2026 · Array · HDF5

The Soil Moisture Active Passive (SMAP, launched in 2015) and the Soil Moisture and Ocean Salinity (SMOS, launched in 2009) missions are each L-band satellites that provide brightness temperature and soil moisture estimates and vegetation optical depth approximately every 2-3 days with a spatial resolution of ~40 km. By integrating brightness temperature observations from both satellites, these da

NASA Earthdata CMR2026 · Array · HDF5

The Soil Moisture Active Passive (SMAP, launched in 2015) and the Soil Moisture and Ocean Salinity (SMOS, launched in 2009) missions are each L-band satellites that provide brightness temperature and soil moisture estimates and vegetation optical depth approximately every 2-3 days with a spatial resolution of ~40 km. By integrating brightness temperature observations from both satellites, these da

NASA Earthdata CMR2026 · Array · HDF5

The SMAP L1B Radiometer Half-Orbit Radio Frequency Interference and Calibration Data (SPL1BTB_RFICAL) product is an intermediate Level 1B radiometer data product generated by NASA’s Soil Moisture Active Passive (SMAP) mission. SPL1BTB_RFICAL provides unaveraged, time-ordered antenna temperature measurements along with associated radio frequency interference (RFI) diagnostics, calibration parameter

NASA Earthdata CMR + NASA Data Portal2025 · Array · NetCDF

This data set contains 6-hourly, global gridded wind speed and direction at 1/64th degree horizontal resolution from the MWOW (Multi-sensor Worldwide Ocean Winds) Project. It is a harmonized wind product combining retrievals from the KaRIn satellite-based SAR (synthetic aperture radar) with interpolated data from three scatterometers and one radiometer for comparison where SAR data is available. D

NASA Earthdata CMR + NASA Data Portal2025 · Array · NetCDF

This data set contains 6-hourly, global gridded wind speed and direction at 0.125 degree horizontal resolution from the MWOW (Multi-sensor Worldwide Ocean Winds) Project. It is a harmonized wind product combining retrievals from a variety of satellite-based instruments, including three scatterometers, one radiometer, and one synthetic aperture radar (SAR) for the Version 0.2 product. Data are avai

NASA Earthdata CMR + NASA Data Portal2025 · Array · NetCDF

This data set contains 6-hourly, global gridded wind speed and direction at 0.125 degree horizontal resolution from the MWOW (Multi-sensor Worldwide Ocean Winds) Project. It is a harmonized wind product combining retrievals from a variety of satellite-based instruments, including three scatterometers, one radiometer, and one synthetic aperture radar (SAR) for the Version 0.1 product. Data are avai

NASA Earthdata CMR + NASA Data Portal2025 · Array · NetCDF

This data set contains 6-hourly, global gridded wind speed and direction at 1/64th degree horizontal resolution from the MWOW (Multi-sensor Worldwide Ocean Winds) Project. It is a harmonized wind product combining retrievals from the KaRIn satellite-based SAR (synthetic aperture radar) with interpolated data from three scatterometers and one radiometer for comparison where SAR data is available. D

NASA Earthdata CMR + NASA Data Portal2025 · Array · NetCDF

This data set contains 6-hourly, global gridded wind speed and direction at 0.125 degree horizontal resolution from the MWOW (Multi-sensor Worldwide Ocean Winds) Project. It is a harmonized wind product combining retrievals from a variety of satellite-based instruments, including five scatterometers, one radiometer, and one synthetic aperture radar (SAR) for the Version 0.1 product. Data are avail

NASA Earthdata CMR2025 · Array · NetCDF

This data set contains twice-daily, enhanced-resolution brightness temperature data produced by image reconstruction of the standard SMAP product, SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures (SPL1BTB). Data are available in the Northern Hemisphere, Southern Hemisphere, Temperate, and Mid-Latitude (subset of Global) EASE-Grid 2.0 projections and on the 3 km, 3.125 km, 9 km,

NASA Earthdata CMR2025 · Array · HDF5

The Level-4 (L4) carbon product (SPL4CMDL) provides global gridded daily estimates of net ecosystem carbon (CO2) exchange derived using a satellite data based terrestrial carbon flux model informed by the following: Soil Moisture Active Passive (SMAP) L-band microwave observations, land cover and vegetation inputs from the Moderate Resolution Imaging Spectroradiometer (MODIS), Visible Infrared Ima

NASA Earthdata CMR2025 · Array · HDF5

SMAP Level-4 (L4) surface and root zone soil moisture (L4_SM) data are provided in three products. The SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data (SPL4SMGP, DOI: 10.5067/T5RUATAQREF8) product is a series of 3-hourly time average geophysical land surface fields that are output by the L4_SM algorithm. It is likely of primary interest to most users. Th

NASA Earthdata CMR2025 · Array · HDF5

SMAP Level-4 (L4) surface and root zone soil moisture (L4_SM) data are provided in three products. The SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data (SPL4SMGP, DOI: 10.5067/T5RUATAQREF8) product is a series of 3-hourly time average geophysical land surface fields that are output by the L4_SM algorithm. It is likely of primary interest to most users. Th

NASA Earthdata CMR2025 · Array · HDF5

SMAP Level-4 (L4) surface and root zone soil moisture (L4_SM) data are provided in three products. The SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data (SPL4SMGP, DOI: 10.5067/T5RUATAQREF8) product is a series of 3-hourly time average geophysical land surface fields that are output by the L4_SM algorithm. It is likely of primary interest to most users. Th

NASA Earthdata CMR + NASA Data Portal2025 · Astronomical catalogue

The SMAP CPEX dataset consists of data collected from the Soil Moisture Active Passive (SMAP) satellite that carries two instruments, a radar (active) and a radiometer (passive), that together will make global measurements of land surface soil moisture and freeze/thaw state. These data were gathered during the Convective Processes Experiment (CPEX) field campaign. CPEX collected data to help answe

NASA Earthdata CMR2024 · Array · HDF5

This data set is derived by downscaling Soil Moisture Active Passive (SMAP) enhanced Level-3 9 km brightness temperatures (TB) using Cyclone Global Navigation Satellite System (CYGNSS) reflectivity data and employing a slightly modified version of the SMAP baseline active-passive TB algorithm. The SMAP Single Channel Algorithm – Vertical polarization (SCA-V) is then used to derive soil moisture fr

NASA Earthdata CMR + NASA Data Portal2024 · Array · NetCDF

This product represents the first full polarimetric Global Navigation Satellite System Reflectometry (GNSS-R) dataset, derived from the Soil Moisture Active Passive (SMAP) mission radar. The main parameters are the normalized Stokes parameters, total power normalized bistatic radar cross section, and reflectivity. The SMAP radar receiver, in bistatic radar configuration, measures the horizontal an

NASA Earthdata CMR + NASA Data Portal2024 · Array · NetCDF

This data set contains 6-hourly, global gridded wind speed and direction at 1/64th degree horizontal resolution from the MWOW (Multi-sensor Worldwide Ocean Winds) Project. It is a harmonized wind product combining retrievals from the KaRIn satellite-based SAR (synthetic aperture radar) with interpolated data from five scatterometers and one radiometer for comparison where SAR data is available. Da

NASA Earthdata CMR + NASA Data Portal2024 · Array · NetCDF

This data set contains 6-hourly, global gridded wind speed and direction at 0.125 degree horizontal resolution from the MWOW (Multi-sensor Worldwide Ocean Winds) Project. It is a harmonized wind product combining retrievals from a variety of satellite-based instruments, including five scatterometers, one radiometer, and one synthetic aperture radar (SAR) for the Version 0.2 product. Data are avail

NASA Earthdata CMR + NASA Data Portal2024 · Array · NetCDF

This data set contains 6-hourly, global gridded wind speed and direction at 1/64th degree horizontal resolution from the MWOW (Multi-sensor Worldwide Ocean Winds) Project. It is a harmonized wind product combining retrievals from the KaRIn satellite-based SAR (synthetic aperture radar) with interpolated data from five scatterometers and one radiometer for comparison where SAR data is available. Da

NASA Earthdata CMR + NASA Data Portal2024 · Array · NetCDF

The RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image Monthly V5.3 Evaluation Dataset produced by the Remote Sensing Systems (RSS) and sponsored by the NASA Ocean Salinity Science Team, is a evaluation product that provides orbital/swath data on sea surface salinity (SSS) derived from the NASA's Soil Moisture Active Passive (SMAP) mission. The SMAP satellite was launched on 31 January 20

NASA Earthdata CMR + NASA Data Portal2024 · Array · NetCDF

The RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V5.3 Evaluation Dataset produced by the Remote Sensing Systems (RSS) and sponsored by the NASA Ocean Salinity Science Team, is a evaluation product that provides orbital/swath data on sea surface salinity (SSS) derived from the NASA's Soil Moisture Active Passive (SMAP) mission. The SMAP satellite was launched on 31

NASA Earthdata CMR + NASA Data Portal2024 · Image data

This dataset provides a probabilistic freeze/thaw (FT) data record from 2016 to 2020 for the Northern Hemisphere derived using a deep learning model (U-Net). The model was informed by satellite multi-frequency microwave brightness temperature retrievals from the NASA SMAP (Soil Moisture Active Passive) and JAXA AMSR2 (Advanced Microwave Scanning Radiometer 2) radiometers, and trained using daily s

NASA Earthdata CMR + NASA Data Portal2024 · Image data

The RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V6.0 Validated Dataset produced by the Remote Sensing Systems (RSS) and sponsored by the NASA Ocean Salinity Science Team, is a validated product that provides orbital/swath data on sea surface salinity (SSS) derived from the NASA's Soil Moisture Active Passive (SMAP) mission. The SMAP satellite was launched on 31 J

NASA Earthdata CMR + NASA Data Portal2024 · Image data

The RSS SMAP Level 3 Sea Surface Salinity Standard Mapped Image Monthly V6.0 Validated Dataset produced by the Remote Sensing Systems (RSS) and sponsored by the NASA Ocean Salinity Science Team, is a validated product that provides orbital/swath data on sea surface salinity (SSS) derived from the NASA's Soil Moisture Active Passive (SMAP) mission. The SMAP satellite was launched on 31 January 2015

NASA Earthdata CMR + NASA Data Portal2024 · Image data

The SMAP-SSS level 2C near real-time (NRT) V6.0 dataset produced by the Remote Sensing Systems (RSS) and sponsored by the NASA Ocean Salinity Science Team, is a validated product that provides near real-time orbital/swath data on sea surface salinity (SSS) derived from the NASA's Soil Moisture Active Passive (SMAP) mission. SMAP, launched on January 31, 2015, was initially designed to measure and