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Sea-Floor Sunday #31: Lake Erie bathymetry

October 5, 2008

I guess technically this isn’t the sea floor … but hey, lakes are cool too!

This week’s image is a bathymetric map of Lake Erie, which is one of the Great Lakes in the northern United States. You can find the image and links to more information here.

Bathymetry of Lake Erie -- credit: NOAA NGDC (

To give you a sense of scale, Lake Erie is ~330 km (200 mi) long.

Note how the central and eastern parts of the lake are subdivided into two distinct basins. I think – but could be wrong – that the bathymetric high separating them is a now drowned glacial moraine deposit.

See all Sea-Floor Sunday posts here.


2 Comments leave one →
  1. Jane Rogers permalink
    November 11, 2009 7:48 am

    Hi Brian,
    I am a concerned citizen over recent offshore wind turbine construction in Pigeon Bay of the southwestern basin in Lake Erie. Southpoint Wind Inc. wishes to construct 15 Industrial Wind Turbines within the waters approx. 300m offshore. What are your thoughts one this? This is not the only company who wishes to do so.
    Please read articles at: to find out that there will be an estimated 8 000 such wind turbines proposed. The Ministry of Natural Resources have received 100 applications for site releases in the offshore waters and have since Oct. closed acceptance of any further proposals. This is due to a huge “green” push for renewable energy in Ontario. I fear our beautiful Great Lake Basin, our source of drinking water is at great risk. Please give me your thoughts.

  2. November 11, 2009 7:56 am

    Jane … unfortunately I do not know anything about the projects/issues you mention. I’m a geologist that simply was intrigued by the morphology at the bottom of the lake, which is why I shared this image. Sorry.

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