Folders: ROOT > ScienceBase Catalog > Pacific Coastal and Marine Science Center > Digital seafloor character data of the Gulf of Alaska from historical National Ocean Service (NOS) smooth sheets ( Show all descendants )
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ROOT _ScienceBase Catalog __Pacific Coastal and Marine Science Center ___Digital seafloor character data of the Gulf of Alaska from historical National Ocean Service (NOS) smooth sheets Filters
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This data release provides seafloor-characteristics point data across the Gulf of Alaska, as digitized directly from National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS) smooth sheets published from 1892 to 2001, and archived at the National Geophysics Data Center (NGDC). Geo-rectification and digitization methods were adapted from Zimmermann and Benson (2013). Each location includes information for the smooth sheet number (H#####), a unique site number location, latitude, longitude, collection date, seafloor notation, and the translation of the notation. Unique site numbers were assigned randomly to each notation on a smooth sheet, starting at “_0”. Examples of seafloor notations...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Alaska,
CMGP,
Coastal and Marine Geology Program,
Gulf of Alaska,
Marine Habitat,
This table lists the NOS smooth sheets included in the associated shapefile (GulfofAlaskaDigitizationProject_NOSSeafloorCharacter.zip; N = 329, plus insets), the number of samples for each smooth sheet, the year of collection (1892 to 2001), and the smooth sheet scale (from 1:2,000 to 1:600,000). Smooth sheets are available through the National Geophysics Data Center’s online data portal (NDGC, http://www.ngdc.noaa.gov).
Categories: Data;
Tags: Alaska,
CMGP,
Coastal and Marine Geology Program,
Gulf of Alaska,
Marine Habitat,
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