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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 The descriptions were abstracted from unpublished data reports and Bottom Type "M" log sheets, and digitized from survey smooth sheets produced by the NOAA National Ocean Service (NOS) and its predecessor, the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]

Online Access
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 Marine Geology Data Manager
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6339
geology.info@noaa.gov
Purpose: Seabed characteristics for hydrographic maps and charts
Originator
  • U.S. Coast and Geodetic Survey
  • NOAA-National Ocean Service, Office of the Coast Survey
  • National Museum of Natural History (NMNH), Smithsonian Institution
  • NOAA-National Ocean Service, Office of the Coast Survey
Date(s)
  • publication: 2013-11-21
  • revision: 2013-11-21
Edition: First
Data Presentation Form: Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status ongoing
Data Update Frequency: Continual
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).
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:
Theme keywords
  • 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
  • INFOTERRA > Subject disciplines > Geology > Geology
  • INFOTERRA > Subject disciplines > Marine geology > Marine geology
Data Center Keywords
  • WDC/GEOPHYSICS, BOULDER > World Data Center for Geophysics, Boulder
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Instrument Keywords
  • GRAB SAMPLERS
Place keywords
  • Vertical Location > Sea Floor
  • Ocean > Atlantic Ocean
  • Ocean > Pacific Ocean
Platform keywords
  • SHIPS > SHIPS
Project keywords
  • Unknown
Use Limitations
  • Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
Use Constraints
  • Data are not to be used for navigation.
  • 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]
Lineage Statement Lineage varies by contributor, see supplemental information.
Source Datasets

Last Modified: 2014-04-23

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