SMAP Enhanced L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture V006

Description

This enhanced Level-2 (L2) product contains calibrated, geolocated, brightness temperatures acquired by the Soil Moisture Active Passive (SMAP) radiometer during 6:00 a.m. descending and 6:00 p.m. ascending half-orbit passes. This product is derived from SMAP Level-1B (L1B) interpolated antenna temperatures. Backus-Gilbert optimal interpolation techniques are used to extract maximum information from SMAP antenna temperatures and convert them to brightness temperatures, which are posted to the 9 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0) in a global cylindrical projection [available as the SPl1CTB_E product]. As of 2021, the data are also posted to the Northern Hemisphere EASE-Grid 2.0, an azimuthal equal-area projection. These 9-km brightness temperatures are then used to retrieve surface soil moisture posted on the 9-km grid [this SPL2SMP_E product].

Resources

Name Format Description Link
21 NASA's newest search and order tool for subsetting, reprojecting, and reformatting data. https://search.earthdata.nasa.gov/search?q=SPL2SMP_E+V006
21 Search and filter data files using a map-based interface https://nsidc.org/data/data-access-tool/SPL2SMP_E/versions/6/
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FBN36FXOMMC4C
21 Subscribe to have new data automatically sent when the data become available. https://nsidc.org/daac/subscriptions.html
21 Direct download via HTTPS protocol. https://n5eil01u.ecs.nsidc.org/SMAP/SPL2SMP_E.006/
21 This application allows you to interactively browse global satellite imagery within hours of it being acquired. You can also save it, share it, and download the underlying data. https://worldview.earthdata.nasa.gov/?v=-203%2C-77%2C152%2C87&l=SMAP_L2_Passive_Enhanced_Night_Soil_Moisture_Option3%2CSMAP_L2_Passive_Enhanced_Night_Soil_Moisture_Option2%2CSMAP_L2_Passive_Enhanced_Night_Soil_Moisture_Option1%2CSMAP_L2_Passive_Enhanced_Day_Soil_Moisture_Option3%2CSMAP_L2_Passive_Enhanced_Day_Soil_Moisture_Option2%2CSMAP_L2_Passive_Enhanced_Day_Soil_Moisture_Option1%2CCoastlines_15m%2CMODIS_Terra_CorrectedReflectance_TrueColor
21 Includes a user's guide, supplemental documents like ATBDs and academic papers, How Tos, FAQs, etc. https://doi.org/10.5067/BN36FXOMMC4C

Tags

  • soils
  • land-surface
  • spectral-engineering
  • microwave
  • earth-science

Topics

Categories