The NGDC Seafloor Sediment Grain Size DatabaseView Metadata As: Get Data, FAQ, HTML, 19139 XML
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The NGDC Seafloor Sediment Grain Size Database
doi:10.7289/V5G44N6W
browse graphicThe NGDC Seafloor Sediment Grain Size Database contains particle size data for over 17,000 seafloor samples worldwide. The file was begun by NGDC in 1976 in response to a need by the Outer Continental Shelf Environmental Assessment Program (OCSEAP) for a detailed, digital file of textural analyses. Data are from OCSEAP studies, academic institutions, environmental baseline studies conducted under contract to the Bureau of Land Management under the Outer Continental Shelf (OCS) Program, and from laboratory reports generated by the U.S. Naval Oceanographic Office. Data include collecting institution, ship, cruise, sample id, latitude/longitude, date of collection, water depth, sampling device, method of analysis, sample weight, sampled interval, raw weight percentages of sediment, within a given phi range. Some samples also have percentages of total gravel, sand, silt, clay, and statistical measurements such as mean, median, skewness, kurtosis, and standard deviation of grain size.

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http://www.ngdc.noaa.gov/mgg_grainsize/index.jsp
Text interface to subset and download data in delimited form.
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Data set discovery via the NGDC Marine Geology Inventory
Text interface to discover data sets containing grain size analyses archived by NGDC, including data not in the 073 format/grain size database.
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NGDC Seafloor Sediment Geotechnical Properties Database
Related database that shares the same format as the NGDC Seafloor Sediment Grain Size Database.
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DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6339
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free online download

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Please cite the originator of the data set, the date downloaded, and the National Geophysical Data Center, NOAA, as the source of the data.

Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.

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Citation Recommendation: Cite as: National Geophysical Data Center (1976): The NGDC Seafloor Sediment Grain Size Database. National Geophysical Data Center, NOAA, doi:10.7289/V5G44N6W [date of access]

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Access to this dataset is unrestricted.

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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.

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unclassified