Arctic Sea Ice Charts from Danish Meteorological Institute, 1893 - 1956

Metadata Updated: November 13, 2020

From 1893 to 1956, the Danish Meteorological Institute (DMI) created charts of observed and inferred sea ice extent for each summer month. These charts are based on compiled observations of ice conditions reported by a variable network of national organizations, shore-based observers, scientific expeditions, and ships as detailed in each report; in cases where no observations were available, the lead mapmakers extrapolated further ice cover using their knowledge of ice movement. Except for where direct observations are indicated, caution is advised in using the charts’ ice edge because there is no way to quantify the assumptions used in extrapolating ice edge or the error involved in this method. See the note on reliability for further discussion of potential error. The charts were scanned at the Icelandic Meteorological Office (IMO) and are being made available here as a service and in cooperation with DMI and other contributors. In all, there are 266 image files containing 291 images.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Date August 13, 2015
Metadata Created Date November 12, 2020
Metadata Updated Date November 13, 2020
Reference Date(s) November 15, 2012 (publication)
Frequency Of Update asNeeded

Additional Metadata

Resource Type Dataset
Metadata Date August 13, 2015
Metadata Created Date November 12, 2020
Metadata Updated Date November 13, 2020
Reference Date(s) November 15, 2012 (publication)
Responsible Party Danish Meteorological Institute (Principal Investigator); National Snow and Ice Data Center (Point of Contact)
Contact Email
Guid noaa.ncei.nsidc.G02203
Access Constraints Access Constraints : none, Use Constraints : none
Bbox East Long 180
Bbox North Lat 90
Bbox South Lat 55
Bbox West Long -180
Coupled Resource
Frequency Of Update asNeeded
Harvest Object Id 0e7f2a4a-aecd-4602-834e-a6d83fb7b8bc
Harvest Source Id f24c6629-4c02-44bc-863f-5f319481e810
Harvest Source Title NSIDC
Licence
Metadata Language eng; usa
Metadata Type geospatial
Progress complete
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 18930401
Temporal Extent End 19560831

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