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Bathymetry of Lake Ontario

Summary

Type of release
ongoing release of a series of related datasets

Data Licence
Not Applicable

Content Licence
Creative Commons CCZero

Verification
automatically awarded

Release Date
27 September 2015
Modified Date
27 September 2015
Update Frequency
asNeeded
Publishers
National Oceanic and Atmospheric Administration, Department of Commerce
Identifier
bathymetry-of-lake-ontario
Landing Page
http://catalog.data.gov/dataset/bathymetry-of-lake-ontario

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Description

Bathymetry of Lake Ontario has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and make it more accessible to the public. The project is a cooperative effort between investigators at the NOAA National Geophysical Data Center's Marine Geology & Geophysics Division (NGDC/MGG) and the NOAA Great Lakes Environmental Research Laboratory (GLERL). was compiled utilizing the entire historic sounding data base. The entire historic hydrographic sounding data base from the U.S. and Canada, originally collected for nautical charting purposes, was used to create a complete and accurate representation of Lake Ontario bathymetry. The U.S. data primarily came from the NOS Hydrographic Survey Data. This and other bathymetric sounding data collected by the U.S. National Ocean Service's (NOS) Coast Survey and the U. S. Army Corps of Engineers was employed to construct bathymetric contours at 1 meter intervals from 1-10 meters depth and 2 meter intervals at depths greater than 10 meters. Compilation scales ranged from 1:10,000 to 1:50,000. Bathymetric sounding data collected by the Canadian Hydrographic Service (CHS) were employed to construct bathymetric contours at 1 meter intervals and compilation scales ranging from 1:1,000 to 1:30,000. Digitization of the bathymetric contours, merging of the bathymetric contour data sets, poster construction, and preparation of a CD-ROM, were accomplished at the NGDC. Multibeam bathymetric data collected by the University of New Brunswick's Ocean Mapping Group (UNB-OMG), with support of the Geological Survey of Canada (GSC) and the CHS, were kindly made available in gridded form. In the two areas where multibeam bathymetric data were available, no other bathymetric data were used in the compilations. In some areas all available Canadian and U. S. bathymetric sounding data, collected at different times on different survey expeditions, were used to derive the contours. The U.S. coastline used was primarily the GLERL Medium Resolution Vector Shoreline dataset (Lee, 1998). Where needed for more coverage, the NOS Medium Resolution Vector Shoreline for the Conterminous U.S. (1994) dataset was used. Coastlines from the CHS bathymetric sounding data field sheets were used to complete the Canadian coastline. Images were constructed using the publicly-available software Generic Mapping Tools (GMT).

Información General

  • Estos datos se describen como

    http://catalog.data.gov/dataset/bathymetry-of-lake-ontario Do you think this data is incorrect? Let us know

  • Estos datos son publicados por

    National Oceanic and Atmospheric Administration, Department of Commerce Do you think this data is incorrect? Let us know

Información legal

This dataset has been created by US Government which means it is required to be in the public domain. However US copyright law only allows open access by US citizens, we have assumed the data is equivalently licensed as CC0 for the rest of the world as this is in the spirit of the US Government’s Open Data policy.

  • La declaración sobre derechos está en

    http://catalog.data.gov/dataset/bathymetry-of-lake-ontario Do you think this data is incorrect? Let us know

  • Under which licence can people outside the US reuse this data?

    CCZero Creative Commons Do you think this data is incorrect? Let us know

  • Existen

    yes, and the rights are all held by the same person or organisation Do you think this data is incorrect? Let us know

  • El contenido se encuentra disponible bajo

    CCZero Creative Commons Do you think this data is incorrect? Let us know

  • Estos datos contienen

    Ningún dato sobre individuos Do you think this data is incorrect? Let us know

Información práctica

  • Los datos aparecen en esta colección.

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Información técnica

  • Lanzamientos de estos datos se enlistan en

    http://catalog.data.gov/api/rest/package/bathymetry-of-lake-ontario Do you think this data is incorrect? Let us know

  • Estos datos son

    Lectura mecánica Do you think this data is incorrect? Let us know

  • El formato de estos datos es

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Información social

  • La documentación incluye datos legibles por máquina para

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  • La documentación acerca de cada distribución incluye datos legibles por máquina para

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    Un URL para descargar la base de datos Do you think this data is incorrect? Let us know

  • Encuentre la manera de contactar a alguien sobre estos datos en

    http://catalog.data.gov/dataset/bathymetry-of-lake-ontario Do you think this data is incorrect? Let us know

  • Encuentre cómo sugerir mejoras a una publicación en

    http://www.data.gov/issue/?media_url=http://catalog.data.gov/dataset/bathymetry-of-lake-ontario Do you think this data is incorrect? Let us know

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