BLM/OCS Southern California Outer Continental Shelf Environmental Baseline Studies

browse graphicsample locations in study area
Data in this file were produced by Science Applications, Inc., prime contractor on the Bureau of Land Management/Outer Continental Shelf - Southern California Studies (BLM/OCS). Data consist of six data files (benthic sediment characteristics, benthic sediment hydrocarbons, intertidal sediment hydrocarbons, intertidal sediment trace metals, benthic sediment trace metals, and intertidal sediment characteristics). Data are derived from 801 grab and box core samples from the sea floor offshore Southern California. Original documentation have been scanned as images to a .PDF document. The data were received on August 19, 1977. Some documentation has been transcribed to an ASCII readme file. Additional data codes and documentation are in poor, extremely hard to read condition. There are known problems in these data files, including truncation of records past the 80th column in the first file (Benthic Sediment Characteristics). Other problems exist in device codes and analyses that were unable to be resolved by multiple exchanges with the contributors. Additional problems may exist, including deviations from the specified formats.
Cite this dataset when used as a source.
  • ID not available.
Download Data
Distribution Formats
  • ASCII (Version: UTF-8)
    • File Specification: American Standard Code for Information Interchange (ASCII) text format.
  • tar.gz (Version: unknown)
    • File Specification: compressed tape archive (tar) file
  • PDF
    • File Specification: Adobe Portable Document Format (PDF).
Distributor Data Manager
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6338
Dataset No POCs available for this dataset
Coverage Description Offshore Southern California
Time Period 1975-9-8 to 1976-5-7
Spatial Reference System urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates
N: 34.411
S: 30.666
E: -117.251
W: -120.533
Spatial Coverage Map
General Documentation
  • Publisher's landing page
    Information about the data set, all access options, and complete documentation.
  • Readme file
    Data set information summary, followed by record format and field contents for all data types.
Associated Resources
  • National Geophysical Data Center (1976): The NGDC Seafloor Sediment Grain Size Database. NOAA National Centers for Environmental Information. doi:10.7289/V5G44N6W
  • Resource title not available.
    • Parent Archive
      Information about the Marine Geology Data Archive at NCEI.
  • NOAA/NCEI Marine Geology WAF
  • Parent ID (indicates this is related to other data):
    • gov.noaa.ngdc:Marine_Geology
Publication Dates
  • publication: 1977-08-10
  • revision: 1977-08-10
Edition First
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Not planned - Completed data set, no additions planned.
Supplemental Information
Due to quality concerns, these data were not added to the historic NGDC Seafloor Sediment Grain Size Database, and are only available in their original form. Vertical extent is not known, continental shelf
Purpose environmental studies
Use Limitations
  • Please cite the originator of the data set, the date downloaded, and the National Centers for Environmental Information, NOAA, as the source of the data.
  • Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
  • John Wilson
    Science Applications, Inc.
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • Science Applications, Inc., with funding from the NOAA and BLM Outer Continental Shelf Assessment Program.
Theme keywords Library of Congress Subject Headings
  • Scientific archives
  • Electronic records
  • Oceanography
  • Ocean bottom
  • Geology
  • Submarine geology
  • Marine sediments
SeaDataNet Common Vocabularies
  • Marine geology
USGS Science Topics
  • Sea-floor characteristics
Global Change Master Directory (GCMD) Science Keywords
  • EARTH SCIENCE > OCEANS > Marine Sediments
  • EARTH SCIENCE > Oceans > Marine Sediments > Sediment Chemistry
  • EARTH SCIENCE > Oceans > Marine Sediments > Sediment Composition
  • EARTH SCIENCE > Oceans > Marine Sediments > Sedimentation
  • EARTH SCIENCE > Oceans > Marine Sediments > Geotechnical Properties
  • EARTH SCIENCE > Biosphere > Aquatic Ecosystems > Benthic Habitat
  • EARTH SCIENCE > Solid Earth > Rocks/Minerals/Crystals > Trace Elements
CIESIN Keyword Thesaurus
  • CIESIN > Environmental Protection > Resource Management
  • CIESIN > Environmental Protection > Environmental Monitoring
Data Center keywords NASA/GCMD 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
Platform keywords Global Change Master Directory (GCMD) Platform Keywords
  • In Situ Ocean-based Platforms > SHIPS
Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
  • In Situ/Laboratory Instruments > Corers > CORING DEVICES
  • In Situ/Laboratory Instruments > Corers > SEDIMENT CORERS
Place keywords Global Change Master Directory (GCMD) Location Keywords
Project keywords Global Change Master Directory (GCMD) Project Keywords
  • OCS > Outer Continental Shelf Program
  • ICSU-WDS > International Council for Science - World Data System
Use Constraints
  • 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.
  • free online download
Lineage information for: dataset
Lineage Statement Grain size analyses from this data set were not reformatted to the 073 format for addition to the NGDC Seafloor Sediment Grain Size Database due to quality concerns. Data were contributed by the originator to NOAA's former National Oceanographic Data Center (NODC) and may be part of a larger compilation archived as oceanographic data by NCEI. Data were received in September of 1977 on nine track magnetic tape in EBCDIC form as five files of 130 character records blocked to 2600 characters per block. The tape contained 2, 580 records, there were 1,066 sample header records, but all but 801 were duplicated. Francis Mitchel of NODC noted on transmission that the data were probably not usable.
Processing Environment Native Dataset Environment: ASCII text
Source Datasets
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.
Acquisition Information (collection)
  • various
  • In Situ Ocean-based Platforms > SHIPS
Last Modified: 2015-12-31
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