NOAA/NMC/CAC Arctic and Antarctic Monthly Sea Ice Extent, 1973-1990
Entry ID: G00917

[ Update this Record ]

Summary
Abstract: Sea ice extent from January 1973 through August 1990 was digitized from weekly operational sea ice charts produced by the Navy/NOAA Joint Ice Center. Charts were digitized by hand using a 1 degree latitude x 2.5 degrees longitude grid. The grid boxes were then summed in 1 degree latitude x 10 degrees longitude slices, and the ice covered area computed. The data represent the extent of sea ice at the end of each month, given for 36 10-degree longitudinal sectors in each hemisphere. Data were provided by the NOAA National Weather Service National Meteorological Center (NMC) Climate Analyses Center (CAC).
Related URL
Description: Sea Ice Products at NSIDC

Description: Access to NMC/CAC sea ice information and data
Geographic Coverage
Spatial coordinates   
  N: -50.0   S: -90.0   E: 180.0   W: -180.0
  N: 90.0   S: 50.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: Ropelewski, C. F.
Dataset Title: NOAA/NMC/CAC Arctic and Antarctic Monthly Sea Ice Extent, 1973-1990
Dataset Release Date: 1983-01-01
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/G00917
Temporal Coverage
Start Date: 1973-01-31
Stop Date: 1990-08-31
Quality The weekly chart dated closest to the end of the month was selected to represent the sea ice for that month, because it was not practical to analyze each of the weekly charts. This introduces error, or noise, into these estimates for year-to-year comparisons (Ropelewski, 1983). No quality assessment or quality control has been performed on these data at NSIDC.
Data Set Progress
COMPLETE
Data Center
National Oceanic and Atmospheric Administration at the National Snow and Ice Data Center Supplemental Info
Data Center URL: http://nsidc.org/noaa/

Data Center Personnel
Name: NSIDC NOAA 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
View entire list
Distribution
Distribution Media: FTP
Personnel
Role: INVESTIGATOR
View entire list
Publications/References
Ropelewski, C.F. 1983. Spatial and temporal variations in Antarctic sea ice (1973-82). Journal of Climate and Applied Meteorology. 22,470-473.
Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 1983-01-01
Last DIF Revision Date: 2014-04-09
[ Update this Record ]


Link to Web Site