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AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures

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Entry ID

NSIDC-0301

Summary

This document pertains to two data sets: AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures (NSIDC-0301) and AMSR-E/Aqua Daily Global Quarter-Degree Gridded Brightness Temperatures (NISDC-0302).

The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA EOS Aqua satellite provides global passive microwave measurements of the Earth. NSIDC produces AMSR-E gridded brightness temperature data by interpolating AMSR-E data (6.9 GHz, 10.7 GHz, 18.7 GHz, 23.8 GHz, 36.5 GHz, and 89.0 GHz) to the output grids from swath space using an Inverse Distance Squared (ID2) method. AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures (AE_L2A) input source data are used.

These data are provided in three EASE-Grid projections (north and south Lambert azimuthal and global cylindrical) at 25 km resolution, and in one global cylindrical, equidistant latitude-longitude projection at 0.25 degree (quarter-degree) resolution. For both data sets, spatial coverage is global, data are daily, and coverage begins 19 June 2002 and ends 27 September 2011.

Data are provided via FTP. Brightness temperature data (in tenths of kelvins) are two-byte unsigned integers and time files are two-byte signed integers.

Geographic Coverage

 

Spatial Coordinates:
N: 90°     S: -90°     E: 180°     W: -180°    

Data Set Citation

Dataset Creator: Knowles, K., M. Savoie, R. Armstrong, and M. Brodzik.
Dataset Title: AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures
Dataset Release Date: 2006-12-08
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0301.html

Temporal Coverage

Start Date: 2002-06-19
Stop Date: 2011-09-27

Data Resolution

Latitude Resolution: 25 km
Longitude Resolution: 25 km
Temporal Resolution: 1 day

Location Keywords

  • GEOGRAPHIC REGION GLOBAL
  • GEOGRAPHIC REGION NORTHERN HEMISPHERE
  • GEOGRAPHIC REGION SOUTHERN HEMISPHERE

Science Keywords

  • Spectral/Engineering Microwave Brightness Temperature

Ancillary Keywords

  • AMSR-E
  • Brightness Temperature
  • cylindrical
  • Ease
  • EASE-Grid
  • Global
  • Gridded Data
  • inverse-distance squared
  • Lambert azimuthal
  • Northern Hemisphere
  • Passive Microwave
  • Passive Microwave Brightness Temperatures
  • Remote Sensing
  • Southern Hemisphere
  • Spatially Resampled Brightness Temperatures
  • Swath

ISO Topic Category (View Definitions)

  • Climatology/Meteorology/Atmosphere

Platform

  • AQUA Earth Observing System, AQUA

Instrument

  • AMSR-E Advanced Microwave Scanning Radiometer-EOS

Project

  • EOSDIS Earth Observing System Data Information System

Quality

Extensive quality control procedures are followed in the production of the AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures (AE_L2A) source data. See the Quality Assessment section of the AE_L2A documentation for more information. The gridding procedure assumes that source data brightness temperatures are legitimate, and performs no filtering of input data based on quality flags.

Data Set Progress

in work

Originating Center

NSIDC_DAAC

Data Center

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: 1 - 2 MB
Distribution Format: Binary

Personnel

Kenneth Knowles
Role: INVESTIGATOR
Contact Address:

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

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

Matthew Savoie
Role: INVESTIGATOR
Email: savoie@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

Richard Armstrong
Role: INVESTIGATOR
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: rlax@nsidc.org
Contact Address:

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

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

Richard Armstrong
Role: INVESTIGATOR
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: rlax@nsidc.org
Contact Address:

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

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

Mary J. Brodzik
Role: INVESTIGATOR
Email: brodzik@nsidc.org
Contact Address:

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

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

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

Related URL

VIEW RELATED INFORMATION
AMSR-E/Aqua Daily Global Quarter-Degree Gridded Brightness Temperatures

VIEW RELATED INFORMATION
AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures (Tb)

VIEW RELATED INFORMATION
DMSP SSM/I Pathfinder Daily EASE-Grid Brightness Temperatures

VIEW RELATED INFORMATION
EASE-Grid Data

VIEW RELATED INFORMATION
Nimbus-7 SMMR Pathfinder Daily EASE-Grid Brightness Temperatures

Reference

Ashcroft, P. and F. Wentz. 2000. Algorithm Theoretical Basis Document for the AMSR Level-2A Algorithm, Revised 03 November. Santa Rosa, California USA: Remote Sensing Systems.

Brodzik, M. J. and K. W. Knowles. 2002. 'EASE-Grid: A Versatile Set of Equal-Area Projections and Grids' in M. Goodchild (Ed.) Discrete Global Grids. Santa Barbara, California, USA: National Center for Geographic Information & Analysis.

Knowles, Kenneth W. 1993. Points, Pixels, Grids, and Cells -- A Mapping and Gridding Primer. Unpublished report to the National Snow and Ice Data Center, Boulder, Colorado USA.

Knowles, Kenneth W. Intercomparison of Resampling Methods for SMMR Pathfinder in EASE-Grid Format. Unpublished report to geospatialmethods.org, Boulder, Colorado USA.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2006-12-08
Last DIF Revision Date: 2013-07-18

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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