Bathymetry of Lake Ontario

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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).
  • Cite as: NOAA National Geophysical Data Center. 1999: Bathymetry of Lake Ontario. First. NOAA National Centers for Environmental Information. https://doi.org/10.7289/V56H4FBH. Accessed [date].
gov.noaa.ngdc.mgg.dem:282
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Distribution Formats
  • Great Lakes Bathymetric contours shapefile format
  • ASCII xyz
  • ASCII raster
  • GRD98 binary raster format
  • JPEG
  • PDF
  • ARC/INFO interchange format
  • Binary Float
  • GeoTiff
  • NetCDF
Ordering Instructions Contact NCEI for other distribution options and instructions.
Distributor NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact DEM Information
NOAA National Centers for Environmental Information
dem.info@noaa.gov
Time Period Unknown to Unknown
Spatial Reference System urn:ogc:def:crs:EPSG::4269Local Lake datum
Spatial Bounding Box Coordinates
N: 44.25
S: 43.15
E: -76.05
W: -79.90
Spatial Coverage Map
General Documentation
Associated Resources
  • Great Lakes Bathymetry Project
    • Bathymetric Data Viewer (search)
      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).
    • DEM text search (search)
      Text search for locating completed and planned DEMs.
Publication Dates
  • publication: 1999-01-01
Edition First
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
Supplemental information regarding spatial reference. Contours are vertically referenced to lake levels.
Purpose Scientific Research, Commercial Exploration, Fishing, Policy and Decision-making
Use Limitations
  • Not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For navigation, please refer to the NOS nautical chart series.
  • Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
Dataset Citation
  • Cite as: NOAA National Geophysical Data Center. 1999: Bathymetry of Lake Ontario. First. NOAA National Centers for Environmental Information. https://doi.org/10.7289/V56H4FBH. Accessed [date].
Cited Authors
  • NOAA National Geophysical Data Center
Originators
  • NOAA Great Lakes Environmental Research Lab
  • NOAA National Ocean Service
  • Canadian Hydrographic Service
Publishers
  • NOAA National Centers for Environmental Information
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Terrestrial Hydrosphere > Surface Water > Surface Water Features > Lakes/Reservoirs
  • Earth Science > Terrestrial Hydrosphere > Surface Water > Surface Water Features > Water Channels
  • Earth Science > Terrestrial Hydrosphere > Surface Water > Surface Water Processes/Measurements > Water Depth
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth
  • Earth Science > Paleoclimate > Ocean/Lake Records > Sediments
  • Earth Science > Paleoclimate > Ocean/Lake Records > Stratigraphic Sequence
Infoterra Keyword Thesaurus
  • Infoterra > Environmental information > GIS > GIS
  • Infoterra > Environmental monitoring > Monitoring data > Baseline studies
  • Infoterra > Lithosphere > Coastlines > Coastlines
  • Infoterra > Subject disciplines > Geology > Geology
  • Infoterra > Subject disciplines > Geomorphology > Geomorphology
Uncontrolled Keywords
  • Bathymetry
  • Geography and Land Cover > Great Lakes
  • Geomorphology
  • Great Lakes
  • Lacustrine
  • Multibeam
  • Topography
Global Change Master Directory (GCMD) Service Keywords
  • DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS
  • DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL
  • DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING
Global Change Master Directory (GCMD) Service Keywords
  • DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS
  • DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL
  • DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Platform keywords Global Change Master Directory (GCMD) Platform Keywords
  • Models/Analyses > DEM > Digital Elevation Model
Place keywords Getty Thesuarus of Geographic Names
  • North America > Great Lakes
Global Change Master Directory (GCMD) Location Keywords
  • Continent > North America > United States of America > Great Lakes
Project keywords Global Change Master Directory (GCMD) Project Keywords
  • ICSU-WDS > International Council for Science - World Data System
Use Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Other Constraints Cite as: NOAA National Geophysical Data Center. 1999: Bathymetry of Lake Ontario. First. NOAA National Centers for Environmental Information. https://doi.org/10.7289/V56H4FBH. Accessed [date].
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Last Modified: 2020-05-21-06:00
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