NCEI (formerly NGDC)
EMMA logo
Back to Collection NOAA/NESDIS/NGDC/MGG/DEM
View Metadata As: Get Data, FAQ, HTML, 19139 XML
Assess Metadata For: Completeness, DOI Readiness, CSW Readiness, Components

Bathymetry of Lake Ontario

browse graphicLake Ontario preview image
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: National Geophysical Data Center, 1999. Bathymetry of Lake Ontario. National Geophysical Data Center, NOAA. doi:10.7289/V56H4FBH [access date].
Online Access
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
Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Dataset Point of Contact DEM Information
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
dem.info@noaa.gov
General Documentation
Associated Resources
  • Great Lakes Bathymetry Project
Date(s)
  • publication: 1999-01-01
Edition: First
Dataset Progress Status Complete
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 Geophysical Data Center. Not subject to copyright protection within the United States.
  • While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Originator(s)
  • NOAA Great Lakes Environmental Research Lab
  • NOAA National Ocean Service
  • Canadian Hydrographic Service
Publisher(s)
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Time Period: Unknown to Unknown
Spatial Reference System: urn:ogc:def:crs:EPSG::4269 Local Lake datum
Spatial Bounding Box Coordinates:
N: 44.25
S: 43.15
E: -76.05
W: -79.90
Spatial Coverage Map:
Theme keywords
  • EARTH SCIENCE > HYDROSPHERE > Surface Water > Lakes
  • EARTH SCIENCE > HYDROSPHERE > Surface Water > Water Channels
  • EARTH SCIENCE > HYDROSPHERE > Surface Water > Water Depth
  • EARTH SCIENCE > OCEANS > Bathymetry > Seafloor Topography
  • EARTH SCIENCE > OCEANS > Bathymetry > 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
  • DEM > Digital Elevation Model
  • 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
  • Bathymetry
  • Geography and Land Cover > Great Lakes
  • Geomorphology
  • Great Lakes
  • Lacustrine
  • Multibeam
  • Topography
  • 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 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
  • 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
Place keywords
  • North America > Great Lakes
  • Continent > North America > United States of America > Great Lakes
Project keywords
  • ICSU-WDS > International Council for Science - World Data System
Use Constraints No constraint information available
Other Constraints Cite as: National Geophysical Data Center, 1999. Bathymetry of Lake Ontario. National Geophysical Data Center, NOAA. doi:10.7289/V56H4FBH [access date].
Fees
  • Download online no charge. CD-ROM: 25 USD plus shipping and handling.
  • USD plus shipping and handling
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: 2015-09-03
For questions about the information on this page, please email: dem.info@noaa.gov