AMSR2/GCOM-W1 downscaled surface soil moisture (LPRM) L2B V001 (LPRM_AMSR2_DS_SOILM2) at GES DISC

Description

AMSR2/GCOM-W1 downscaled surface soil moisture (LPRM) L2B V001 is a Level 2 (swath) data set. Its land surface parameters, surface soil moisture, land surface (skin) temperature, and vegetation water content, are derived from passive microwave remote sensing data from the Advanced Microwave Scanning Radiometer 2 (AMSR2), using the Land Parameter Retrieval Model (LPRM). Each swath is packaged with associated geolocation fields. The data set covers the period from May 2012, when the Japan Aerospace Exploration Agency (JAXA) Global Change Observation Mission-1st Water GCOM-W1 satellite was launched, to the present. The spatial resolution of the data is based on a resampling of the nominally 46 and 31 km resolutions, respectively, of AMSR2's C and X bands (6.9/7.3 and 10.7 GHz, respectively) to 25 km by 25 km and then a downscaling, using the smoothing filter-based intensity modulation (SFIM) technique, to 10 km by 10 km grids. The LPRM is based on a forward radiative transfer model to retrieve surface soil moisture and vegetation optical depth. The land surface temperature is derived separately from the AMSR2's Ka-band (36.5 GHz). A unique feature of this method is that it can be applied at any microwave frequency, making it very suitable to exploit all the available passive microwave data from various satellites. Input data are from the AMSR2 spatial-resolution-matched brightness temperatures (L1SGRTBR) product, archived at JAXA.

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%2FKZ9OOIENUO0C
21 Access the data via HTTPS. https://hydro1.gesdisc.eosdis.nasa.gov/data/WAOB/LPRM_AMSR2_DS_SOILM2.001/
34 LPRM_AMSR2_DS_SOILM2_001.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/LPRM_AMSR2_DS_SOILM2_001.png
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/LPRM_AMSR2_DS_SOILM2_001.html
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=LPRM_AMSR2_DS_SOILM2
21 Access the data via the OPeNDAP protocol. https://hydro1.gesdisc.eosdis.nasa.gov/opendap/LPRM_AMSR2_DS_SOILM2.001/contents.html
21 GES DISC Hydrology Documentation https://disc.gsfc.nasa.gov/information/documents?title=Hydrology+Documentation

Tags

  • soils
  • land-surface
  • biosphere
  • vegetation
  • surface-thermal-properties
  • earth-science

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