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

Metadata Updated: December 6, 2023

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.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

References

https://doi.org/10.1029/2007JF000769
https://doi.org/10.1007/s10712-008-9044-0
https://doi.org/10.1029/2008JD010257
https://doi.org/10.1109/LGRS.2011.2114872
https://doi.org/10.1175/JHM-D-13-0200.1

Dates

Metadata Created Date November 12, 2020
Metadata Updated Date December 6, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Graphic Preview

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date December 6, 2023
Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
Maintainer
Identifier C1235316219-GES_DISC
Data First Published 2014-09-16
Language en-US
Data Last Modified 2014-09-16
Category GCOM-W, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Vrije Universiteit Amsterdam (Richard de Jeu) and NASA GSFC (Manfred Owe). Goddard Earth Sciences Data and Information Services Center (GES DISC) (Bill Teng). 2014-09-15. LPRM_AMSR2_DS_SOILM2. Version 001. AMSR2/GCOM-W1 downscaled surface soil moisture (LPRM) L2B V001. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://doi.org/10.5067/KZ9OOIENUO0C. https://disc.gsfc.nasa.gov/datacollection/LPRM_AMSR2_DS_SOILM2_001.html.
Creator Vrije Universiteit Amsterdam (Richard de Jeu) and NASA GSFC (Manfred Owe)
Editor Goddard Earth Sciences Data and Information Services Center (GES DISC) (Bill Teng)
Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/LPRM_AMSR2_DS_SOILM2_001.png
Harvest Object Id c714393f-30a9-47c6-83fc-005bb5af5983
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/KZ9OOIENUO0C
Metadata Type geospatial
Old Spatial -180.0 -90.0 180.0 90.0
Program Code 026:001
Related Documents https://doi.org/10.1029/2007JF000769, https://doi.org/10.1007/s10712-008-9044-0, https://doi.org/10.1029/2008JD010257, https://doi.org/10.1109/LGRS.2011.2114872, https://doi.org/10.1175/JHM-D-13-0200.1
Release Place Greenbelt, MD, USA
Series Name LPRM_AMSR2_DS_SOILM2
Source Datajson Identifier True
Source Hash e9f846baf6cc92528033246a279ed01a552c9067c9f190c88bfab52bbe41f498
Source Schema Version 1.1
Spatial
Temporal 2012-07-02T23:18:38Z/2022-01-17T00:00:00Z

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