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LPRM/TMI/TRMM Daily L3 Day Surface Soil Moisture, Ancillary Params, and QC
Entry ID: GES_DISC_LPRM_TMI_SOILM3_DY_V001


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Summary
Abstract: This Level 3 (gridded) data set’s land surface parameters, surface soil moisture, land surface (skin) temperature, and vegetation water content, are derived from passive microwave remote sensing data from the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI), using the Land Parameter Retrieval Model (LPRM). There are two files per day, one day and one night, archived as two different products. This document is for the daytime product. The data set covers the period from December 1997 to present, at a spatial resolution of 0.25 degree. The data are stored in netCDF format.

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 TMI's Ka-band (37 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 TMI Brightness Temperatures (1B-11) product, daytime passes, as processed using LPRM (i.e., LPRM/TMI/TRMM L2 product, GES_DISC_LPRM_TMI_SOILM2_V001).

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Geographic Coverage
 N: 40.0 S: -40.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Originator/Creator: Vrije Universiteit Amsterdam and NASA GSFC
Dataset Title: LPRM/TMI/TRMM Daily L3 Day Surface Soil Moisture, Ancillary Params, and QC
Dataset Release Date: 04.16.2012
Dataset Release Place: Greenbelt, MD U.S.A.
Dataset Publisher: Goddard Earth Sciences Data and Information Services Center (GES DISC)
Version: 1
Online Resource: ftp://hydro1.sci.gsfc.nasa.gov/data/s4pa/WAOB/LPRM_TMI_DY_SOILM3.001/


Temporal Coverage
Start Date: 1997-12-07


Location Keywords
GEOGRAPHIC REGION > GLOBAL LAND


Data Resolution
Latitude Resolution: 25 km
Longitude Resolution: 25 km
Temporal Resolution: Daily


Science Keywords
LAND SURFACE >LAND TEMPERATURE >SKIN TEMPERATURE    [Definition]
LAND SURFACE >SOILS >SOIL MOISTURE/WATER CONTENT    [Definition]
BIOSPHERE >VEGETATION >PLANT CHARACTERISTICS >VEGETATION WATER CONTENT


ISO Topic Category
ENVIRONMENT


Platform
TRMM >Tropical Rainfall Measuring Mission    [Information]


Instrument
TMI >TRMM Microwave Imager    [Information]


Project
EOS >Earth Observing System    [Information]
EOSDIS >Earth Observing System Data Information System    [Information]
TRMM >Tropical Rainfall Measuring Mission Project    [Information]
CWIC >CEOS WGISS Integrated Catalog    [Information]


Quality
The LPRM/TMI data are sensitive to both internal model limitations and external processes and are screened for the presence of snow/frozen soils, water, and dense vegetation covers. All screened out data pixels are flagged and indicated by a non-data value. A soil moisture uncertainty parameter at X band is included (Parinussa et al., 2011).


Access Constraints
None


Use Constraints
None


Keywords
Hydrology
TMI
Skin temperature
Surface soil moisture
Optical depth
Brightness temperature
Soil water content
Vegetation water content


Data Set Progress
IN WORK


Originating Center
Goddard Earth Sciences Data and Information Services Center (GES DISC)


Data Center
Hydrology DISC, Goddard Earth Sciences Data and Information Services Center, Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA    [Information]
Data Center URL: http://disc.sci.gsfc.nasa.gov/hydrology/

Data Center Personnel
Name: GES DISC HELP DESK SUPPORT GROUP
Phone: 301-614-5224
Fax: 301-614-5268
Email: gsfc-help-disc at lists.nasa.gov
Contact Address:
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA



Distribution
Distribution_Media: Online (FTP)
Distribution_Size: (per file) 9.9 MB
Distribution_Format: NETCDF
Fees: None


Personnel
RICHARD DE JEU
Role: INVESTIGATOR
Phone: +31 20 598 7287
Email: Richard.de.jeu at falw.vu.nl
Contact Address:
Faculty of Earth and Life Sciences
Department of Hydrology and Geo-environmental Sciences
Vrije Universiteit Amsterdam
City: 1081 HV Amsterdam
Country: The Netherlands


GES DISC HELP DESK SUPPORT GROUP
Role: TECHNICAL CONTACT
Phone: 301-614-5224
Fax: 301-614-5268
Email: gsfc-help-disc at lists.nasa.gov
Contact Address:
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA


Publications/References
Owe, M., R. de Jeu, and T. Holmes (2008), Multisensor historical climatology of satellite-derived global land surface moisture, Journal of Geophysical Research, 113, F01002, 17 pp., doi:10.1029/2007JF000769

De Jeu, R.A.M., W. Wagner, T.R.H. Holmes, A.J. Dolman, N.C. van de Giesen, and J. Friesen (2008), Global soil moisture patterns observed by space borne microwave radiometers and scatterometers, Surveys in Geophysics, 29, 399-420, doi:10.1007/s10712-008-9044-0

Holmes, T.R.H., R.A.M. De Jeu, M. Owe, and A.J. Dolman (2009), Land surface temperature from Ka band (37 GHz) passive microwave observations, Journal of Geophysical Research, 114, D04113, 15 pp., doi:10.1029/2008JD010257

Parinussa, R.M., A.G.C.A. Meesters, Y.Y. Liu, W. Dorigo, W. Wagner, and R.A.M. de Jeu (2011), Error estimates for near-real-time satellite soil moisture as derived from the Land Parameter Retrieval Model, IEEE Geoscience and Remote Sensing Letters, 8, 4, 779 - 783, doi:10.1109/LGRS.2011.2114872

Creation and Review Dates
DIF Creation Date: 2012-03-29
Last DIF Revision Date: 2012-04-17


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