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LPRM/AMSR-E/Aqua Daily L3 Descending and 2-Layer Palmer Water Balance Model Root Zone Soil Moisture

Entry ID: GES_DISC_LPRM_AMSRE_D_RZSM3_V001

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Summary

Abstract: This Level 3 (gridded) root-zone soil moisture product is derived via the assimilation of Land Parameter Retrieval Model (LPRM)/Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E)/NASA EOS Aqua surface soil moisture retrievals into the 2-Layer Palmer Water Balance Model, using a 1-dimensional, 30-member Ensemble Kalman filter (EnKF). The 2-Layer Palmer Water Balance Model was ...

Related URL

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Multimedia Sample

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Caption: Root zone soil moisture from EnKF-based assimilation of LPRM/AMSR-E nighttime C-band retrievals into 2-Layer Palmer Water Balance Model

Geographic Coverage

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Spatial coordinates

N: 60.0

S: -60.0

E: 180.0

W: -180.0

Data Set Citation

Dataset Originator/Creator: USDA Agricultural Research Service

Dataset Title: LPRM/AMSR-E/Aqua Daily L3 Descending and 2-Layer Palmer Water Balance Model Root Zone Soil Moisture

Dataset Release Date: 05.21.2012

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_AMSRE_D_RZSM3.001/

Temporal Coverage

Start Date: 2002-06-01

Stop Date: 2010-12-31

Location Keywords

GEOGRAPHIC REGION > GLOBAL LAND

Data Resolution

Latitude Resolution: 25 km
Longitude Resolution: 25 km
Horizontal Resolution Range: 10 km - < 50 km or approximately .09 degree - < .5 degree
Temporal Resolution: Daily
Temporal Resolution Range: Daily - < Weekly

Science Keywords

LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT

ISO Topic Category

ENVIRONMENT

Platform

AQUA > Earth Observing System, AQUA

Instrument

AMSR-E > Advanced Microwave Scanning Radiometer-EOS

Project

EOS > Earth Observing System

EOSDIS > Earth Observing System Data Information System

AQUA > Earth Observing System (EOS), AQUA

CWIC > CEOS WGISS Integrated Catalog

Quality The accuracy of the EnKF root zone soil moisture (RZSM) predictions depends on (1) the magnitude of errors in the model forecasts and satellite surface soil moisture retrievals from which the RZSM is derived, (2) the quality of error information provided to the EnKF (and used to optimally weigh conflicting information obtained from various sources), and (3) the vertical accuracy of the model (used as the basis for extrapolating surface soil moisture measurements to constrain soil moisture at greater vertical depths). Validation results suggest that the EnKF generally provides a more accurate RZSM prediction, compared with the baseline 2-Layer Palmer Model predictions (particularly in sparsely-vegetated and/or data-poor regions of the world).

Access Constraints None

Use Constraints None

Ancillary Keywords

Hydrology

AMSR-E

Data Set Progress

COMPLETE

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

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) 4 MB

Distribution Format: NETCDF

Fees: None

Personnel

WADE CROW

Role: INVESTIGATOR

Phone: 301 504 6847

Fax: 301 504 8931

Email: Wade.Crow at ars.usda.gov

Contact Address:

USDA-ARS Hydrology and Remote Sensing Laboratory

Bldg. 007, Rm. 104, BARC-West

City: Beltsville

Province or State: MD

Postal Code: 20705-2350

Country: USA

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

Extended Metadata Properties

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Creation and Review Dates

DIF Creation Date: 2012-05-05

Last DIF Revision Date: 2012-05-09

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