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NOAA/NOS and USCGS Seabed Descriptions from Hydrographic Surveys

browse graphicNOS sediment sampling locations in the database
The NOAA/NOS and USCGS Seabed Descriptions from Hydrographic Surveys database is a compilation of surficial sediment composition from multiple sources for over 200,000 seafloor sediment samples primarily around U.S. coastal areas. The descriptions were abstracted from unpublished data reports and Bottom Type "M" log sheets, and digitized from survey smooth sheets produced by the NOAA National Ocean Service (NOS) and its predecessor, the U.S. Coast and Geodetic Survey (USCGS). Prior to August 2001, many physical sediment samples were routinely sent to the Smithsonian Institution Museum of Natural History (NMNH) for archive with accompanying "M" log forms from which bottom type and other information were coded into the NMNH sediment database. In 2001, NMNH sent a copy of the database to NGDC to be incorporated into the Index to Marine and Lacustrine Geological Samples database, and for distribution to data users needing access to the bottom type information in the files. With support from NOS, NGDC digitized several thousand additional bottom type observations from historic NOS Hydrographic Survey smooth sheets and added them to the database. NOS is coding thousands more bottom type observations for entry into the database from survey Data Reports, or DRs. In 2011, NOS began adding standardized digital bottom type descriptions to the database using the International Hydrographic Organization (IHO) SF57 standard "NATSUR" (nature of surface) and "NATQUA" (nature of surface qualifier) coding scheme, transferring the data to NGDC in KML form for archive and upload to the geospatially-enabled database. Hydrographic Technical Directive (HTD)2011-6 contains the official new directive. Data are free for online search and download.

Cite as: National Ocean Service (2013): NOAA/NOS and USCGS Seabed Descriptions from Hydrographic Surveys. National Geophysical Data Center, NOAA, doi:10.7289/V5BG2KWG [date of access]

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Distribution Formats
  • Text (Version: UTF-8)
  • KML (Version: 2.1)
Distributor DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Point of Contact DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6339
geology.info@noaa.gov
General Documentation
Originator
  • U.S. Coast and Geodetic Survey (USCGS)
Originator
  • Dan Neuman
    NOAA-National Ocean Service (NOS), Office of the Coast Survey
Originator
  • Jack Pierce
    National Museum of Natural History (NMNH), Smithsonian Institution
Originator
  • Mark Zimmerman
    NOAA-National Marine Fisheries Service, Alaska Fisheries Science Center (AFSC)
Publisher
  • National Geophysical Data Center, NOAA
Date(s)
  • publication: 2013-11-21
  • revision: 2013-11-21
Data Presentation Form: Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status ongoing
Data Update Frequency: Irregular  -  This dataset is updated as new files are received from ongoing NOS Hydrographic Surveys.
Supplemental Information: Historic data include survey id, sample number, latitude/longitude, original datum, and a brief description. Data for samples taken or coded after 2011, include the International Hydrographic Organization IHO S-57 descriptive attributes as described in the NOAA Office of the Coast Survey Specifications and Deliverables (see Appendix 10).
Purpose: Seabed characteristics for hydrographic maps and charts
Use Limitations
  • Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
Time Period: 1837-01-01  to  2013-11-21
Spatial Reference System: urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates:
N: 72.609314
S: 14.27444
E: -64.43167
W: -175.34972
Spatial Coverage Map:
Themes
  • Scientific archives
  • Electronic records
  • Oceanography
  • Ocean bottom
  • Geology
  • Submarine geology
  • Marine sediments
  • Marine geology
  • Sea-floor characteristics
  • EARTH SCIENCE > Oceans > Marine Sediments
  • EARTH SCIENCE > Paleoclimate > Ocean/Lake Records > Sediments
  • EARTH SCIENCE > Solid Earth > Sediments
  • EARTH SCIENCE > Oceans > Marine Sediments > Sediment Composition
  • EARTH SCIENCE > Oceans > Marine Sediments > Sedimentary Textures
Data Centers
  • WDC/GEOPHYSICS, BOULDER > World Data Center for Geophysics, Boulder
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Platforms
  • In Situ Ocean-based Platforms > SHIPS
Instruments
  • In Situ/Laboratory Instruments > Samplers > Grabbers/Traps/Collectors > GRAB SAMPLERS
Places
  • VERTICAL LOCATION > SEA FLOOR
  • OCEAN > ATLANTIC OCEAN
  • OCEAN > PACIFIC OCEAN
Projects
  • Unknown
Use Constraints
  • Data are not to be used for navigation.
  • The locations and descriptions for some surveys in this dataset that were digitized from smooth sheets are not the original values entered shipboard, they are approximations and are interpretations of the digitizer.
  • 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.
Access Constraints
  • Access to this dataset is unrestricted.
Other Constraints Cite as: National Ocean Service (2013): NOAA/NOS and USCGS Seabed Descriptions from Hydrographic Surveys. National Geophysical Data Center, NOAA, doi:10.7289/V5BG2KWG [date of access]
Fees
  • free online download
Source Datasets
Lineage Statement Lineage varies by contributor, see supplemental information.
Processing Environment Native Dataset Environment: ASCII text

Metadata Last Modified: 2014-09-24

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