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File:Lake Michigan bathymetry map.png

Original file (597 × 1,024 pixels, file size: 948 KB, MIME type: image/png)

Summary

Description
English: Lake Michigan bathymetric shaded relief map contoured with interval 25 m (100 m with thicker lines). The deepest point is marked with "×". For land the vertical datum is sea level, for bathymetry low water datum of the lake.
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, 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 Huron. National Geophysical Data Center, NOAA. doi:10.7289/V5G15XS5 [access date: 2015-03-23].
      (only small portion of this map)
  • 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 coordinates of deepest point are taken from the NOAA Great LakesEnvironmental Research Laboratory webpage (www.glerl.noaa.gov/, kml file Google Earth Great Lakes Tour).
The color palette of the depth scale was made to be more or less similar to the color palettes used on the NGDC Lake Michigan 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: Lake Michigan 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

4 April 2015

File history

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Date/TimeThumbnailDimensionsUserComment
current12:24, 10 May 2015Thumbnail for version as of 12:24, 10 May 2015597 × 1,024 (948 KB)Darekk2a small island in NE
16:36, 9 May 2015Thumbnail for version as of 16:36, 9 May 2015597 × 1,024 (948 KB)Darekk2the lakes tiles better assembled, retouched western part of Green Bay
22:31, 9 April 2015Thumbnail for version as of 22:31, 9 April 2015597 × 1,024 (948 KB)Darekk2replaced contours generated by GMT program by contours downloaded from the NOAA website; added some annotations to contours; made contours 100 and 200 m bold; added rivers and minor lakes; moved Lake Michigan label and Chicago circle
13:29, 4 April 2015Thumbnail for version as of 13:29, 4 April 2015597 × 1,024 (942 KB)Darekk2User created page with UploadWizard

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