SMAP Enhanced L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture V005

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 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FLOT311EZHH8S
21 Direct download via HTTPS protocol. https://n5eil01u.ecs.nsidc.org/SMAP/SPL2SMP_E.005/
21 Search and filter data files using a map-based interface https://nsidc.org/data/data-access-tool/SPL2SMP_E/versions/5/
21 Includes a user's guide, supplemental documents like ATBDs and academic papers, How Tos, FAQs, etc. https://doi.org/10.5067/LOT311EZHH8S
21 Subscribe to have new data automatically sent when the data become available. https://nsidc.org/daac/subscriptions.html
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=-250.2620130097105%2C-109.02609048030178%2C179.80414339464457%2C101.89225128568953&l=SMAP_L2_Passive_Enhanced_Day_Soil_Moisture_Option3%2CMODIS_Terra_CorrectedReflectance_TrueColor&lg=false&t=2022-04-28-T22%3A29%3A52Z
21 NASA's newest search and order tool for subsetting, reprojecting, and reformatting data. https://search.earthdata.nasa.gov/search?q=SPL2SMP_E+V005

Tags

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

Topics

Categories