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AMSR-E/Aqua L2B Surface Soil Moisture, Ancillary Parms, & QC EASE-Grids

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Entry ID

AE_Land

Summary

The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA EOS Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of water and energy cycles. Soil moisture and other land surface variables are key variables in understanding land surface hydrology and in modeling ecosystems, weather, and climate.

This Level-2B land surface product (AE_Land) includes daily measurements of surface soil moisture, vegetation/roughness water content interpretive information, and quality control variables. Ancillary data include time, geolocation, and quality assessment. Input brightness temperature data at 10.7 GHz, corresponding to a 38 km mean spatial resolution, are resampled to a global cylindrical 25 km Equal-Area Scalable Earth Grid (EASE-Grid) cell spacing. Data are stored in HDF-EOS point format, and are available from 18 June 2002 to 3 October 2011 via FTP.

Geographic Coverage

 

Spatial Coordinates:
N: 89.24°     S: -89.24°     E: 180°     W: -180°    

Data Set Citation

Dataset Creator: Njoku, E. G.
Dataset Title: AMSR-E/Aqua L2B Surface Soil Moisture, Ancillary Parms, & QC EASE-Grids
Dataset Release Date: 2004-01-01
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center
Version: 2
Online Resource: http://nsidc.org/data/ae_land.html
Dataset DOI: http://dx.doi.org/10.5067/AMSR-E/AE_LAND.002

Temporal Coverage

Start Date: 2002-06-18
Stop Date: 2011-10-03

Data Resolution

Latitude Resolution: 25 km
Longitude Resolution: 25 km
Temporal Resolution: 00:50:00

Location Keywords

  • GEOGRAPHIC REGION GLOBAL

Science Keywords

  • Biosphere Vegetation Plant Characteristics Vegetation Water Content
  • Land Surface Soils Soil Moisture/Water Content

Ancillary Keywords

  • AE_Land
  • AMSR-E
  • Aqua
  • BRIGHTNESS TEMPERATURES
  • DAAC
  • EASE-Grid
  • EOSDIS
  • EOS PM-1
  • Hydrology
  • Imagery
  • land surface temperatures
  • NASA
  • NSIDC
  • Passive Microwave Radiation
  • Radiance
  • Remote Sensing
  • Soil Water Content
  • Surface Soil Moisture
  • Tbs
  • Vegetation Status
  • Vegetation Water Content

ISO Topic Category (View Definitions)

  • Environment

Platform

  • AQUA Earth Observing System, AQUA

Instrument

  • AMSR-E Advanced Microwave Scanning Radiometer-EOS

Project

  • EOS Earth Observing System

Quality

Each HDF-EOS file contains core metadata with Quality Assessment (QA) metadata flags that are set by the Science Investigator-led Processing System (SIPS) at the Global Hydrology and Climate Center (GHCC) prior to delivery to NSIDC. A separate metadata file (.xml file extension) is also delivered to NSIDC with the HDF-EOS file; it contains the same information as the core metadata. Three levels of QA are conducted with the AMSR-E Level 2 and 3 products: automatic, operational, and science QA. If a product does not fail QA, it is ready to be used for higher-level-processing, browse generation, active science QA, archive, and distribution. If a granule fails QA, SIPS does not send the granule to NSIDC until it is reprocessed. Level-3 products that fail QA are never delivered to NSIDC (Conway 2002).

Data Set Progress

in work

Data Center

NASA DAAC at the National Snow and Ice Data Center
Data Center URL: http://nsidc.org/daac/index.html

Data Center Personnel

Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

National Snow and Ice Data Center
Data Center URL: http://nsidc.org

Data Center Personnel

Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

Distribution

Distribution Media: FTP
Distribution Size: 0.61 MB
Distribution Format: HDF-EOS

Personnel

NSIDC User Services
Role: TECHNICAL CONTACT
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

Eni G. Njoku
Role: INVESTIGATOR
Phone: 1 818 354-3693
Email: njoku@lor.jpl.nasa.gov
Contact Address:

  • California Institute of Technology
  • Jet Propulsion Laboratory
  • M/S 300-233
  • Jet Propulsion Laboratory
  • California Institute of Technology
  • 4800 Oak Grove Drive

City: Pasadena
Province or State: CA
Postal Code: 91109-8099
Country: USA

Related URL

VIEW PROJECT HOME PAGE
AMSR-E/Aqua Data at NSIDC

VIEW PROJECT HOME PAGE
AMSR-E Data at NSIDC

VIEW PROJECT HOME PAGE
NASA AMSR-E Web Site

VIEW PROJECT HOME PAGE
SMAP Data at NSIDC

Reference

Conway, D. 2002. Advanced Microwave Scanning Radiometer - EOS Quality Assurance Plan. Huntsville, AL Global Hydrology and Climate Center.

Njoku, E. G., T. L. Jackson, V. Lakshmi, T. Chan, and S. V. Nghiem. 2003. Soil Moisture Retrieval from AMSR-E. IEEE Transactions on Geoscience and Remote Sensing 41 (2): 215-229. Njoku, E., T. Chan, W. Crosson, and A. Limaye. 2004. Evaluation of the AMSR-E Data Calibration Over Land. Italian Journal of Remote Sensing 29 (4)): 19-37. Njoku, E.G. and S.K. Chan. 2006. Vegetation and Surface Roughness Effects on AMSR-E Land Observations. Remote Sensing Environment 100(2): 190-199.

Njoku, E. G. 1999. AMSR Land Surface Parameters. Algorithm Theoretical Basis Document: Surface Soil Moisture, Land Surface Temperature, Vegetation Water Content, Version 3.0. Pasadena, CA USA: NASA Jet Propulsion Laboratory.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2004-01-01
Last DIF Revision Date: 2014-05-08

Metadata Views

DIF Text-Only

Directory Interchange Format (DIF) in plain text

DIF XML

Directory Interchange Format (DIF) in Extensible Markup Language (XML)

FGDC HTML

U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)

ISO HTML

International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata

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