AMSR-E/Aqua Daily EASE-Grid Brightness TemperaturesEntry ID: NSIDC-0301
Abstract: 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.
Data Set Citation
Dataset Originator/Creator: Knowles, K., M. Savoie, R. Armstrong, and M. J. Brodzik.
Dataset Title: AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures
Dataset Series Name: NSIDC-0301
Dataset Release Date: 2006-12-08
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center
Dataset DOI: doi:10.5067/XIMNXRTQVMOXOnline Resource: http://nsidc.org/data/NSIDC-0301
Start Date: 2002-06-19Stop Date: 2011-09-27
Latitude Resolution: 25 km
Longitude Resolution: 25 km
Temporal Resolution: 1 day
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
Distribution Media: FTP
Distribution Size: 1 - 2 MB
Distribution Format: Binary
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 and 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.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2006-12-08
Last DIF Revision Date: 2017-04-11