AMSR-E/Aqua Daily Global Quarter-Degree Gridded Brightness Temperatures  View Catalog Page Entry ID
NSIDC-0302
Summary
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 method. AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures (AE_L2A) input source data are used to create the gridded brightness temperature data.
These data are provided in one global cylindrical, equidistant latitude-longitude projection at 0.25 degree (quarter-degree) resolution. 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°
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Data Set Citation
Dataset Creator: Knowles, Ken
Dataset Title: AMSR-E/Aqua Daily Global Quarter-Degree Gridded Brightness Temperatures
Dataset Release Date: 2006-12-08
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0302.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
Latitude Resolution: 0.25 degree
Longitude Resolution: 0.25 degree
Temporal Resolution: 1 day
Latitude Resolution: .25°
Longitude Resolution: .25°
Temporal Resolution: 1 day
Location Keywords
- GEOGRAPHIC REGION GLOBAL
Science Keywords
- Spectral/Engineering Microwave Brightness Temperature
- Spectral/Engineering Microwave Brightness Temperature
Ancillary Keywords
- AMSR-E
- Brightness Temperature
- cylindrical
- equidistant
- Global
- Gridded Data
- inverse-distance squared
- Latitude
- Longitude
- Northern Hemisphere
- Passive Microwave
- Passive Microwave Brightness Temperatures
- Remote Sensing
- Southern Hemisphere
- Spatially Resampled Brightness Temperatures
- Swath
- 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
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: 54 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
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 EASE-Grid 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: 2012-08-14
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