• A new version of this data set has been released. This version will be retired 30 October 2026. Please update any scripts that point to the Version 1 distribution location by that date. See the data announcement for more information.

Canadian Ice Service Arctic Regional Sea Ice Charts in SIGRID-3 Format, Version 1
Data set id:
G02171
DOI: 10.7265/N51V5BW9
There is a more recent version of these data.

Overview

The Canadian Ice Service (CIS) produces digital Arctic regional sea ice charts for marine navigation, forecasting, and climate research. The ice charts are created through the manual analysis of in situ, satellite, and aerial reconnaissance data. The ice charts have information on ice concentration, stage of development, and ice form, following World Meteorological Organization terminology. This digital record of sea ice charts begins in 2006 and covers the following regions of the Canadian Arctic: Northern Canadian waters (Western Arctic, Eastern Arctic, and Hudson Bay) and Southern Canadian waters (Great Lakes and East Coast). Each regional shapefile (.shp) (encoded in SIGRID-3 format) and associated metadata file (.xml) are combined into a tar archive file (.tar) for distribution.

Please note that the latest SIGRID-3 charts are available for operational or tactical users directly from CIS at https://ice-glaces.ec.gc.ca/prods/sigrids/.
Parameter(s):
SEA ICE CONCENTRATION
Platform(s):
AIRCRAFT
SATELLITES
SHIPS
Sensor(s):
VISIBLE SPECTROMETER
VISUAL OBSERVATIONS
Data Format(s):
Shapefile
Temporal Coverage:
  • 1 January 2006 to present
Temporal Resolution:
  • 7 day
Spatial Resolution:
  • not applicable
  • not applicable
Spatial Reference System(s):
Not Specified
Spatial Coverage:
  • Northern latitude
    83.19372
    Southern latitude
    39.52777
    Eastern longitude
    21.96925
    Western longitude
    -164.05002
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

Data Access

How to access and download NOAA@NSIDC data
This help article explains how to access the data via HTTPS, wget and with Python and R scripts.

Documentation

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