EBSSED database-Surficial sediments of the eastern Bering Sea continental shelf
In order to facilitate descriptions of groundfish habitat over a large portion of the EBS shelf, the NMFS/AFSC has assembled a single comprehensive database of the point sample data (EBSSED; n=2,587) from all available sources. The database represents sediment variation over the study area with uncompromized (i.e., original) spatial detail. Textural data in the database are of two main types: 1) standardized statistics characterizing sample grain size distribution based on laboratory measurements (granulometric data), including percent composition by size grades (e.g., gravel, sand, mud) and size distribution parameters (e.g., mean size); and 2) sample descriptions from less exacting, more subjective visual/tactile observations, usually made in the field, establishing size-grade constituents. In addition the EBSSED database includes two descriptive fields which were each added to characterize sample grain size distribution by a single, standardized variable based on the original data. These fields classify samples according to gravel-sand-mud composition using high and low resolution schemes derived from Folk's (1954) classic ternary diagram. The high resolution scheme classifies 903 samples with detailed granulometric data into 15 textural classes, providing the greater detail regarding textural variation. The low resolution scheme (7 classes) is designed to allow unambiguous classification of nearly all samples (n=2457) including those with subjective visual/tactile descriptions. It represents the maximum number of samples according to a single common variable and thus provides the most spatially detailed data for the study area, albeit at the expense of some of the textural detail for samples analyzed in the laboratory. Overall, the EBSSED database is the most comprehensive and detailed source of information about surficial sediment textures in the EBS study area. Patterns observed in the data generally agree with large-scale textural maps and summaries by previous investigators, particularly a general pattern, with exceptions, of decreasing average grain size with increasing depth and distance from shore. However, those previous large-scale works spatially smoothed data for the study area from smaller, more sparsely distributed sets of samples. The EBSSED database preserves potentially important fine-scale variation.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "Not provided - Contact data.gov",
"hasEmail": "mailto:datagovsupport@gsa.gov"
}
|
| describedByType | application/octet-steam |
| description | In order to facilitate descriptions of groundfish habitat over a large portion of the EBS shelf, the NMFS/AFSC has assembled a single comprehensive database of the point sample data (EBSSED; n=2,587) from all available sources. The database represents sediment variation over the study area with uncompromized (i.e., original) spatial detail. Textural data in the database are of two main types: 1) standardized statistics characterizing sample grain size distribution based on laboratory measurements (granulometric data), including percent composition by size grades (e.g., gravel, sand, mud) and size distribution parameters (e.g., mean size); and 2) sample descriptions from less exacting, more subjective visual/tactile observations, usually made in the field, establishing size-grade constituents. In addition the EBSSED database includes two descriptive fields which were each added to characterize sample grain size distribution by a single, standardized variable based on the original data. These fields classify samples according to gravel-sand-mud composition using high and low resolution schemes derived from Folk's (1954) classic ternary diagram. The high resolution scheme classifies 903 samples with detailed granulometric data into 15 textural classes, providing the greater detail regarding textural variation. The low resolution scheme (7 classes) is designed to allow unambiguous classification of nearly all samples (n=2457) including those with subjective visual/tactile descriptions. It represents the maximum number of samples according to a single common variable and thus provides the most spatially detailed data for the study area, albeit at the expense of some of the textural detail for samples analyzed in the laboratory. Overall, the EBSSED database is the most comprehensive and detailed source of information about surficial sediment textures in the EBS study area. Patterns observed in the data generally agree with large-scale textural maps and summaries by previous investigators, particularly a general pattern, with exceptions, of decreasing average grain size with increasing depth and distance from shore. However, those previous large-scale works spatially smoothed data for the study area from smaller, more sparsely distributed sets of samples. The EBSSED database preserves potentially important fine-scale variation. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Metadata Landing Page",
"mediaType": "placeholder/value",
"description": "Information about the data set, all access options, and complete documentation.",
"downloadURL": "https://data.noaa.gov/metaview/page?xml=NOAA/NESDIS/NGDC/MGG/Geology/iso/xml/G02124.xml&view=getDataView&header=none",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Data files and documentation",
"mediaType": "placeholder/value",
"description": "Download data files and documentation.",
"downloadURL": "https://www.ngdc.noaa.gov/mgg/geology/data/g02124/",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Alaska Bathymetry, Sediments, and Smooth Sheets: National Marine Fisheries Service, Alaska Fisheries Science Center",
"mediaType": "placeholder/value",
"description": "This data site contains related data and information.",
"downloadURL": "https://www.fisheries.noaa.gov/alaska/ecosystems/alaska-bathymetry-sediments-and-smooth-sheets",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Related database (doi:10.7289/V5G44N6W)",
"mediaType": "placeholder/value",
"description": "This database contains related grain size data.",
"downloadURL": "https://doi.org/10.7289/V5G44N6W",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Parent Archive",
"mediaType": "placeholder/value",
"description": "Information about the Marine Geology Data Archive at NCEI.",
"downloadURL": "https://data.noaa.gov/metaview/page?xml=NOAA/NESDIS/NGDC/Collection/iso/xml/Marine_Geology.xml&view=getDataView&header=none",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Marine geology metadata records.",
"mediaType": "placeholder/value",
"downloadURL": "https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/MGG/Geology/iso/",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "GCMD Keyword Forum Page",
"mediaType": "placeholder/value",
"description": "Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
"downloadURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Library of Congress Subject Headings (LCSH)",
"mediaType": "placeholder/value",
"description": "The Library of Congress Subject Headings (LCSH) are part of a Linked Data Service, actively maintained since 1898 to catalog materials held at the Library of Congress.",
"downloadURL": "http://id.loc.gov/authorities/subjects",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "SeaDataNet Common Vocabularies",
"mediaType": "placeholder/value",
"description": "The SeaDataNet Vocabulary Server is populated with lists describing a wide range of entities relevant to marine metadata and data such as parameters, sea area names, platform classes, instrument types, and so on.",
"downloadURL": "http://www.seadatanet.org/Standards-Software/Common-Vocabularies",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "USGS Thesaurus",
"mediaType": "placeholder/value",
"description": "The USGS Thesaurus contains thematic terms for categorizing information resources intended to support finding and understanding scientific information.",
"downloadURL": "https://www2.usgs.gov/science/about/",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "NCEI Contact Information",
"mediaType": "placeholder/value",
"description": "Information for contacts at NCEI.",
"downloadURL": "https://www.ncei.noaa.gov/contact",
"describedByType": "application/octet-steam"
}
]
|
| identifier | gov.noaa.ngdc.mgg.geology:G02124 |
| isPartOf | NCEI Marine Geology Data Archive |
| issued | 1999-12-31T00:00:00.000+00:00 |
| keyword |
[
"Unknown",
"ICSU-WDS > International Council for Science - World Data System",
"Scientific archives",
"Electronic records",
"Oceanography",
"Ocean bottom",
"Geology",
"Submarine geology",
"Marine sediments",
"Marine geology",
"Sea-floor characteristics",
"Earth Science > Oceans > Marine Sediments > Geotechnical Properties",
"Earth Science > Oceans > Marine Sediments > Sediment Composition",
"Earth Science > Oceans > Marine Sediments > Sedimentary Textures",
"Earth Science > Oceans > Marine Sediments",
"Earth Science > Biosphere > Aquatic Ecosystems > Benthic Habitat",
"Earth Science > Biosphere > Aquatic Ecosystems > Marine Habitat",
"Earth Science > Oceans > Marine Environment Monitoring",
"In Situ Ocean-based Platforms > Ships",
"In Situ/Laboratory Instruments > Corers > Coring Devices",
"In Situ/Laboratory Instruments > Samplers > Grabbers/Traps/Collectors > Grab Samplers",
"In Situ/Laboratory Instruments > Corers > Sediment Corers",
"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",
"Vertical Location >Sea Floor",
"Ocean > Pacific Ocean > NORTH PACIFIC OCEAN > BERING SEA"
]
|
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 1999-12-31T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
}
|
| references |
[
"https://www.fisheries.noaa.gov/alaska/ecosystems/alaska-bathymetry-sediments-and-smooth-sheets",
"https://doi.org/10.7289/V5G44N6W",
"https://data.noaa.gov/metaview/page?xml=NOAA/NESDIS/NGDC/Collection/iso/xml/Marine_Geology.xml&view=getDataView&header=none",
"https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/MGG/Geology/iso/"
]
|
| rights | otherRestrictions, otherRestrictions, unclassified |
| spatial | -157.7,53.8575,-179.1117,62.1535 |
| temporal | 1934-01-01T00:00:00+00:00/1997-12-31T00:00:00+00:00 |
| title | EBSSED database-Surficial sediments of the eastern Bering Sea continental shelf |
