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File:Great Lakes bathymetry map.png

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Original file (1,024 × 731 pixels, file size: 1.34 MB, MIME type: image/png)

Summary

Description
English: Great Lakes bathymetry and surrounding area shaded relief map. Lakes are contoured with interval 100 m.

Lake Superior is incomplete.

The map was created using the Generic Mapping Tools, GMT, version 5.1.1.
Date
Source

Own work using: the following Public Domain datasets (grids):

  • Great Lakes Bathymetry from National Geophysical Data Center http://www.ngdc.noaa.gov/mgg/greatlakes/greatlakes.html. Credits:
    • National Geophysical Data Center, 1999. Bathymetry of Lake Erie and Lake Saint Clair. National Geophysical Data Center, NOAA. doi:10.7289/V5KS6PHK [access date: 2015-03-23].
    • National Geophysical Data Center, 1999. Bathymetry of Lake Huron. National Geophysical Data Center, NOAA. doi:10.7289/V5G15XS5 [access date: 2015-03-23].
    • National Geophysical Data Center, 1996. Bathymetry of Lake Michigan. National Geophysical Data Center, NOAA. doi:10.7289/V5B85627 [access date: 2015-03-23].
    • National Geophysical Data Center, 1999. Bathymetry of Lake Ontario. National Geophysical Data Center, NOAA. doi:10.7289/V56H4FBH [access date: 2015-03-23].
    • National Geophysical Data Center, 1999. Bathymetry of Lake Superior. National Geophysical Data Center, NOAA. [access date: 2015-03-23].
      (the general reference to NGDC because this lake was never published, compilation of Great Lakes Bathymetry at NGDC has been suspended).
  • GLOBE http://www.ngdc.noaa.gov/mgg/topo/gltiles.html - land part of this map. Credits:
    National Geophysical Data Center, 1999. Global Land One-kilometer Base Elevation (GLOBE) v.1. Hastings, D. and P.K. Dunbar. National Geophysical Data Center, NOAA. doi:10.7289/V52R3PMS [access date: 2015-03-16].

The color palette of the depth scale was made to be more or less similar to the color palettes used on the NGDC Great Lakes maps.

 
This map was created with GMT.
Author Darekk2 using the Great Lakes Bathymetry and GLOBE tiles
Other versions
The same map but not shaded: Great Lakes bathymetry map 2.png

Licensing

Attribution (in addition to the author of this map):
The NGDC in it's copyright notice says:
As required by 17 U.S.C. 403, third parties producing copyrighted works consisting predominantly of the material produced by U.S. government agencies must provide notice with such work(s) identifying the U.S. Government material incorporated and stating that such material is not subject to copyright protection within the United States. (...)
(for credits see the Source section).

w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
Attribution: The author of the work
and Great Lakes Bathymetry and GLOBE
(see above and the Source section)
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

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inception

24 March 2015

File history

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Date/TimeThumbnailDimensionsUserComment
current15:46, 9 May 2015Thumbnail for version as of 15:46, 9 May 20151,024 × 731 (1.34 MB)Darekk2more accurate shorelines, the lakes tiles better assembled, added Canada, USA and Lake St. Clair labels, moved Detroit label, Michigan Lake - retouched western part of Green Bay
10:03, 25 March 2015Thumbnail for version as of 10:03, 25 March 20151,024 × 731 (1.34 MB)Darekk2changed illumination for shaded relief
01:29, 25 March 2015Thumbnail for version as of 01:29, 25 March 20151,024 × 731 (1.33 MB)Darekk2changed palette a little
20:21, 24 March 2015Thumbnail for version as of 20:21, 24 March 20151,024 × 731 (1.61 MB)Darekk2User created page with UploadWizard

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