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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.

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Distribution Formats
  • ASCII (Version: UTF-8)
  • tar.gz (Version: unknown)
  • PDF
Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Point of Contact Marine Geology Data Manager
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6339
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
  • John Wilson
    Science Applications, Inc.
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • 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
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.
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:
  • Scientific archives
  • Electronic records
  • Oceanography
  • Ocean bottom
  • Geology
  • Submarine geology
  • Marine sediments
  • Marine geology
  • Sea-floor characteristics
  • 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 > Environmental Protection > Resource Management
  • CIESIN > Environmental Protection > Environmental Monitoring
Data Centers
  • 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
  • In Situ Ocean-based Platforms > SHIPS
  • In Situ/Laboratory Instruments > Corers > CORING DEVICES
  • In Situ/Laboratory Instruments > Corers > SEDIMENT CORERS
  • 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
Source Datasets
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 Steps
  • 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.
Processing Environment Native Dataset Environment: ASCII text

Metadata Last Modified: 2015-11-06

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