NOAA/NMC/CAC Arctic and Antarctic Monthly Sea Ice Extent, 1973-1990, Version 1 (G00917)
Data set:
G00917
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This is the most recent version of these data.

Overview

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).
Data Contributor(s):
  • Chester
    Ropelewski
Parameter(s):
ICE EXTENT SEA ICE CONCENTRATION
Platform(s):
AIRCRAFT, GROUND STATIONS, GROUND-BASED OBSERVATIONS, SHIPS
Sensor(s):
VISUAL OBSERVATIONS
Data Format(s):
ASCII
Temporal Coverage:
31 January 1973 to 31 August 1990
Temporal Resolution:
1 month
Spatial Resolution:
1 degree
10 degrees
Spatial Coverage:
N:
-50
S:
-90
E:
180
W:
-180
N:
90
S:
50
E:
180
W:
-180

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