[ISO_Topic_Category='GEOSCIENTIFIC INFORMATION']
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AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites
Entry ID:
NSIDC-0094
Summary
Abstract:
The AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites are a collection of products for both poles, consisting of twice-daily gridded and calibrated satellite channel data and derived parameters. Data include five Advanced Very High Resolution Radiometer (AVHRR) channels, clear sky surface broadband albedo and skin temperature, average albedo and temperature, valid fraction file, solar ...
 Geographic Coverage
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Spatial coordinates
Data Set Citation
Dataset Originator/Creator:
C. Fowler, J. Maslanik, T. Haran, T. Scambos, J. Key, and W. Emery.
Dataset Title:
AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites
Dataset Release Date:
2002-01-01
Dataset Release Place:
Boulder, CO U.S.A.
Dataset Publisher:
National Snow and Ice Data Center (NSIDC)
Online Resource:
http://nsidc.org/data/nsidc-0094.html
Temporal Coverage
Start Date:
1981-07-24
Stop Date:
2000-12-31
Location Keywords
Data Resolution
Temporal Resolution:
Twice-daily
Science Keywords
ISO Topic Category
Platform
Project
Quality
Channel data are accurate to within approximately +/- 0.2 percent based on sensor noise level of 0.4 data number (DN). Temperatures are accurate to within approximately 2 degrees Kelvin. Relative albedos in adjacent grid cells are accurate to within approximately 5 percent. However, absolute albedo values are approximate. Accuracies for the products are difficult to determine, given the limited ...
Data Set Progress
IN WORK
Data Center
Distribution
Distribution Media:
ftp
Distribution Size:
North: 230,642 bytes (2-byte grid) and 130,321 bytes
Distribution Format:
1-byte and 2-byte integer grids
Personnel
Role:
INVESTIGATOR
Contact Address:
Colorado Center for Astrodynamics Research
University of Colorado
City:
Boulder
Province or State:
CO
Postal Code:
80309-0431
Country:
USA
Publications/References
Key, J. 1999. The cloud and surface parameter retrieval (CASPR) system for polar AVHRR. Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin, Madison.
Key, J., J. Collins, C. Fowler, and R.S. Stone. 1997. High-latitude surface temperature estimates from thermal satellite data. Remote Sensing of the Environment 61:302-309. Kidwell, K.D. 1995. NOAA Polar Orbiter ... Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date:
2002-03-06
Last DIF Revision Date:
2012-05-14
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