Chesapeake Bay (M130) Bathymetric Digital Elevation Model - NOAA/NOS Estuarine Bathymetry

A 1/3 arc-second Mean Lower Low Water bathymetric DEM of NOS hydrographic survey data in the Chesapeake Bay Estuary.
  • Cite as: National Centers for Environmental Information, 2017. NOAA NOS Estuarine Bathymetry - Chesapeake Bay (M130). National Centers for Environmental Information, NOAA. doi:10.7289/V5ZK5F0X [access date].
gov.noaa.ngdc.mgg.dem:chesapeake_bay_M130_2017
Search Data
  • DEM text search (search)
    Text search for locating completed and planned DEMs.
  • 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).
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Distribution Formats
  • netCDF (Version: 4 Classic)
Distributor DEM Information
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
dem.info@noaa.gov
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
Time Period 1897-01-01 to 2016-01-01
Spatial Reference System urn:ogc:def:crs:EPSG::4326urn:ogc:def:crs:EPSG::5866
Spatial Bounding Box Coordinates
N: 39.6200462963
S: 36.7199537037
E: -75.6099537037
W: -77.4300462963
Spatial Coverage Map
General Documentation
Associated Resources
  • NOAA NOS Estuarine Bathymetry
  • Big Earth Data Initiative (BEDI): Archival and Updates to NOAA Estuarine Bathymetry Grids
Publication Dates
  • publication: 2017-12-11
Edition 2
Data Presentation Form mapDigital
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Irregular
Supplemental Information
Only NOS hydrographic survey data were used in DEM development. Other sources of bathymetry may exist within DEM boundaries.
Purpose The objective of this project is to update NOAA NOS Estuarine Bathymetry Digital Elevation Models (DEMs), gridded representations of bathymetry for various estuaries in the United States, that were initially created in 1998 by the now defunct NOS Special Projects Office. Although these data still represent the ???best available??? gridded depictions of bathymetry in some locations, they are primarily based on antiquated historical data and do not include many modern survey data, in particular, high resolution BAG format hydrographic data. NCEI will identify more recent NOS hydrographic survey data if available and update existing DEMs compliant with NOAA Data Directives and meeting the requirements for Data Management, Discoverability, Accessibility, Documentation, Readability, and Data Preservation and Stewardship as per the Big Earth Data Initiative (BEDI).
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.
Dataset Citation
  • Cite as: National Centers for Environmental Information, 2017. NOAA NOS Estuarine Bathymetry - Chesapeake Bay (M130). National Centers for Environmental Information, NOAA. doi:10.7289/V5ZK5F0X [access date].
Originators
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Publishers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth
  • Earth Science > Oceans > Coastal Processes > Coastal Elevation
Uncontrolled
  • Coastal Relief
  • Gridded elevations
  • Bathymetry
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
Place keywords None
  • Chesapeake Bay
  • Maryland
  • Virginia
  • Washington D.C.
  • Delaware
  • United States
Data Resolution keywords Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
  • 1 meter - < 30 meters
Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
  • 1 meter - < 10 meters
Use Constraints No constraint information available
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: National Centers for Environmental Information, 2017. NOAA NOS Estuarine Bathymetry - Chesapeake Bay (M130). National Centers for Environmental Information, NOAA. doi:10.7289/V5ZK5F0X [access date].
Fees Fee information not available.
Lineage information for: dataset
Processing Steps
  • Hydrographic survey data were downloaded from NCEI, if needed, converted to WGS 84 geographic horizontal datum. Older soundings were supplanted by more recent soundings and the collection of data points were visually inspected for errors or outliers. An xyz point file version of the ENC shoreline with 3 meter point spacing was generated and used as source data with elevation value set to zero as well as used as a mask for the final gridded data product. All data points were surfaced using GMT software to generate a 10 meter DEM surface.
Processing Environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.5.0.6491
Source Datasets
  • NOS Hydrographic Surveys Collection
    • Description of Source: Source Contribution: Hydrographic Soundings
    • Temporal extent used: 1897-01-01 to 2016-01-01
  • Electronic Navigational Chart (ENC) digital coastline and soundings
    • ENC Direct to GIS (download)
      ENC coastline and extracted soundings
    • Description of Source: Source Contribution: ENC coastline and soundings
    • Temporal extent used: 2007-03-01 to 2017-04-06
Last Modified: 2018-06-06
For questions about the information on this page, please email: dem.info@noaa.gov