Bathymetry of Lake Ontario

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).

Resources

Name Format Description Link
0 https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc.mgg.dem:282/html
0 online tool for grid extract http://maps.ngdc.noaa.gov/viewers/wcs-client/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 The Bathymetric Data Viewer is an interactive map providing discovery, descriptions, and download capability for bathymetric survey data and digital elevation models archived at NOAA's National Centers for Environmental Information (NCEI). https://maps.ngdc.noaa.gov/viewers/bathymetry/?layers=dem
0 Text search for locating completed and planned DEMs. https://www.ngdc.noaa.gov/mgg/coastal
21 Please see website for more information about Coastal DEMs. https://ngdc.noaa.gov/mgg/coastal/coastal.html
0 NOAA GeoPlatform listing for Digital Elevation Models Global Mosaic (Color Shaded Relief) https://noaa.maps.arcgis.com/home/item.html?id=feb3c625dc094112bb5281c17679c769
0 A map service showing the location and coverage of land and seafloor digital elevation models (DEMs) available. https://noaa.maps.arcgis.com/home/item.html?id=d41f39c8a6684c54b62c8f1ab731d5ad
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
23 REST endpoint for Digital Elevation Models Global Mosaic (Color Shaded Relief) ArcGIS image service https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer
21 coastal.html https://ngdc.noaa.gov/mgg/coastal/coastal.html
0 NOAA GeoPlatform listing for Digital Elevation Model Footprints ArcGIS Map Service https://noaa.maps.arcgis.com/home/item.html?id=d41f39c8a6684c54b62c8f1ab731d5ad
0 Color shaded relief visualization of a global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI. https://noaa.maps.arcgis.com/home/item.html?id=feb3c625dc094112bb5281c17679c769
0 A global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI. https://noaa.maps.arcgis.com/home/item.html?id=c876e3c96a8642ab8557646a3b4fa0ff
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
23 REST endpoint for Digital Elevation Model Footprints ArcGIS dynamic map service https://maps.ngdc.noaa.gov/arcgis/rest/services/dem_extents/MapServer
0 An image service providing access to bathymetric/topographic digital elevation models stewarded at NOAA's National Centers for Environmental Information. Either individual DEMs or small subsets can be accessed through this service. https://noaa.maps.arcgis.com/home/item.html?id=e9ba2e7afb7d46cd878b34aa3bfce042
21 home page for Lake Ontario bathymetry data https://www.ngdc.noaa.gov/mgg/greatlakes/ontario.html
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
52 Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Models Global Mosaic (Color Shaded Relief) https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer/WMSServer?request=GetCapabilities&service=WMS
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
52 Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Model Footprints https://maps.ngdc.noaa.gov/arcgis/services/dem_extents/MapServer/WMSServer?request=GetCapabilities&service=WMS
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords

Tags

  • digital elevation model
  • topography
  • terrestrial hydrosphere
  • surface water features
  • surface water processes/measurements
  • united states of america
  • international council for science - world data system
  • infoterra
  • nesdis
  • icsu-wds
  • geomorphology
  • bathymetry
  • oceans
  • water channels
  • environmental monitoring
  • ocean/lake records
  • continent
  • national geophysical data center
  • noaa
  • baseline studies
  • monitoring data
  • paleoclimate
  • dem
  • lakes/reservoirs
  • geology
  • north america
  • multibeam
  • coastlines
  • stratigraphic sequence
  • u.s. department of commerce
  • earth science
  • doc/noaa/nesdis/ngdc
  • bathymetry/seafloor topography
  • doc/noaa/nesdis/ncei
  • lacustrine
  • geography and land cover
  • models/analyses
  • environmental information
  • gis
  • sediments
  • subject disciplines
  • water depth
  • lithosphere
  • great lakes
  • surface water
  • national centers for environmental information

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