NOS Hydrographic Surveys Collection
National Geospatial Data Asset (NGDA) NOS Hydrographic Surveys
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate
to collect hydrographic data in support of nautical chart compilation for safe navigation
and to provide background data for engineers, scientific, and other commercial and
industrial activities. Hydrographic survey data primarily consist of water depths,
but may also include features (e.g. rocks, wrecks), navigation aids, shoreline identification,
and bottom type information. NOAA is responsible for archiving and distributing the
source data as described in this metadata record. Survey types are B: Hydrographic
EEZ Surveys; D: Discovery Surveys; H: Hydrographic Surveys; F: Field Edit Surveys;
W: Non-NOS Hydrographic Surveys.
Cite this dataset when used as a source.
|Search and Download
||DOC/NOAA/NESDIS/NGDC > United States Department of Commerce (DOC), National Oceanic
and Atmospheric Administration (NOAA), National Environmental Satellite, Data, and
Information Service (NESDIS), National Geophysical Data Center (NGDC)
NOS Hydrographic Survey Data Home Page
Home page for digitized data from smooth sheets of hydrographic surveys completed
between 1837 and 1965, and from survey data acquired digitally on NOS survey vessels
since 1965. Over 76 million soundings from over 6,600 surveys are included. NGDC has
developed an interactive map and data discovery tool, the Bathymetry Map Service,
and a text-based search engine, the Hydrographic Survey Text Search, which enable
rapid data discovery and download.
Publisher information not available.
|Dataset Progress Status
|| Status not available
|Data Update Frequency:
|| Data update frequency not available
||These hydrographic data are made available to the public for a wide variety of uses,
such as sea-bottom characterization, habitat classification, coastal studies, boundary
issues, and tsunami forecasting. These data are not intended to be used for navigation.
Nautical charts produced and certified by NOAA should be used for navigation purposes.
|| Unknown to Unknown
|Spatial Reference System:
||Through the collection reference systems have vaired with time and location. Please
see survey level metadata for detailed information.
|Spatial Bounding Box Coordinates:
|Spatial Coverage Map:
||Theme keywords not available
| Use Constraints
|| No constraint information available
| Other Constraints
Access Constraints: None. Use Constraints: These data are NOT to be used for navigation.
Distribution Liability: These data are not to be used for navigation purposes. NOAA
makes no warranty regarding these data, expressed or implied, nor does the fact of
distribution constitute such a warranty. NOAA cannot assume liability for any damages
caused by any errors or omissions in these data, nor as a result of the failure of
these data to function on a particular system. Only NOAA nautical charts are designed
and approved for navigational use.
|| Fee information not available.
|| Lineage statement not available.
Metadata Last Modified: 2015-04-27
For questions about the information on this page, please email: Hydro.Info@noaa.gov