AVHRR Polar Pathfinder Twice-Daily 5 km EASE-Grid Composites
Entry ID: NSIDC-0066

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Summary
Abstract: This data set is no longer available due to errors in the data. See the http://nsidc.org/data/docs/daac/nsidc0066_avhrr_5km.gd.html#errorso...>Error Sources section of the data set documentation for details. If you have further questions, please contact NSIDC User Services by e-mail or telephone at +1 ... The Advanced Very High Resolution Radiometer (AVHRR) Polar Pathfinder Twice-Daily 5 km EASE-Grid Composites are a collection of products for both poles, consisting of twice-daily calibrated and gridded satellite channel data and derived parameters. Data include five AVHRR channels, clear sky surface broadband albedo and skin temperature, solar zenith angle, satellite elevation angle, sun-satellite relative azimuth angle, surface type mask, cloud mask, and Universal Coordinated Time (UTC) of acquisition. AVHRR Polar Pathfinder data extend pole ward from 48.4 degrees north and 53.2 degrees south latitudes, from 24 July 1981 through 30 June 2005. Data are in 1-byte and 2-byte integer grid format and are available by FTP. Note: Due to a problem with the NOAA-16 scan motor, all the channel data is shifted sporadically between 2001 and 2005, causing the channels to contain data from another channel; thus, the derived parameters also contain errors during this time-period. See Table 12 in the Error Sources section of this document for specific dates. View entire text
Related URL
Description: AVHRR Data at NSIDC
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Geographic Coverage
Spatial coordinates   
  N: -53.2   S: -90.0   E: 180.0   W: -180.0
  N: 90.0   S: 48.4   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: W. Emery, C. Fowler, T. Haran, J. Key, J. Maslanik, T. Scambos
Dataset Title: AVHRR Polar Pathfinder Twice-Daily 5 km EASE-Grid Composites
Dataset Release Date: 2000-09-01
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Version: 3
Online Resource: http://nsidc.org/data/NSIDC-0066
Temporal Coverage
Start Date: 1981-07-24
Stop Date: 2005-06-30
Data Resolution
Temporal Resolution: 12 hour
Quality Product validation is a continuing process that takes advantage of comparative data as they become available. Comparisons were made between AVHRR Polar Pathfinder clear sky skin temperatures and surface-based measurements obtained at the South Pole over a seven-day period in 1995. These field data were collected by Robert Stone of the Cooperative Institute for Research in Environmental Sciences ... View entire text
Data Set Progress
COMPLETE
Data Center
NSIDC Distributed Active Archive Center Supplemental Info
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 at 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
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Distribution
Distribution Media: FTP
Distribution Size: 3.26 MB
Distribution Format: Binary

Distribution Media: FTP
Distribution Size: 6.52 MB
Distribution Format: Binary
Personnel
Role: INVESTIGATOR
Contact Address:
Space Science and Engineering Center
University of Wisconsin at Madison
1225 W. Dayton St.
City: Madison
Province or State: WI
Postal Code: 53706
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Publications/References
Cracknell, A. P. 1997. The Advanced Very High Resolution Radiometer. London: Taylor & Francis. Csiszar, I. and G. Gutman. 1999. Mapping Global Land Surface Albedo from NOAA AVHRR. Journal of Geophysical Research 104(D6):6215-6228. Diner, D. J., J. V. Martonchik, C. Borel, S. A. W. Gerstl, H. R. Gordon, Y. Knyazikhin, R. Myneni, B. Pinty, M. M. Verstraete. 1999. MISR Level 2 Surface Retrieval ... View entire text
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2000-09-01
Last DIF Revision Date: 2014-07-16
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