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General Information
File Identifier:
gov.noaa.ngdc.mgg.geology:G00127
Metadata Date Stamp:
2012-09-14
Organization:
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Organization Role:
pointOfContact
Identification Information
Title:
NGDC Marine Sediment Grain Size Database
Dataset Publication Date:
2000-12-31
Abstract:
The NGDC digital grain size file 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.
Credit
US Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), NOAA Satellite and Information Service (NESDIS), National Geophysical Data Center (NGDC) and World Data Center for Marine Geology and Geophysics, Boulder.
Constraints
Please cite the original source when using these data. Disclaimer - 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.
Browse Graphic
Browse Graphic URL:
http://www.ngdc.noaa.gov/mgg/image/placer.jpg
Browse Graphic Caption:
image of a placer deposit
Browse Graphic Type:
JPEG
Data Theme
Theme Topics:
Geological and Geophysical, Oceans and Estuaries
Reference System Information
Reference System URN:
urn:ogc:def:crs:EPSG:4326
Spatial Domain
West Bounding Longitude:
-180
South Bounding Latitude:
-78.3667
East Bounding Longitude:
180
North Bounding Latitude:
81.0705
Beginning Date:
1956-01-01
Ending Date:
2000-12-31
Data Quality Information
Scope (quality information applies to):
Dataset
Data History:
Lineage prior to transfer to NGDC is unknown
Contact Information
Organization:
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Address:
NOAA/NESDIS/NGDC 325 Broadway
City:
Boulder
State:
CO
Postal Code:
80305-3328
Country:
USA
Email:
geology.info@noaa.gov
Telephone:
(303) 497-6339
Fax:
(303) 497-6513
Distribution Information
Format Name:
ASCII
Distribution Link:
http://www.ngdc.noaa.gov/mgg/geology/size.html
Distribution Link Function:
Information
Metadata Reference Information
Metadata Standard Name:
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
Metadata Standard Version:
ISO 19115-2:2009(E)
Acquisition Information
Instrument Code:
various
Platform Code:
SHIPS > SHIPS
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