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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, All tags...
PCMSC,
Pacific Coastal and Marine Science Center,
Physical Habitats and Geomorphology,
Physical Habitats and Geomorphology,
Substrate,
Substrate,
U.S. Geological Survey,
USGS,
ecosystems,
fisheries biology,
geoscientificInformation,
grain-size analysis,
oceans,
relative abundance analysis, Fewer tags
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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, All tags...
PCMSC,
Pacific Coastal and Marine Science Center,
Physical Habitats and Geomorphology,
Physical Habitats and Geomorphology,
Substrate,
Substrate,
U.S. Geological Survey,
USGS,
ecosystems,
fisheries biology,
geoscientificInformation,
grain-size analysis,
oceans,
relative abundance analysis, Fewer tags
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In 2012, US Geological Survey (USGS) and National Oceanic & Atmospheric Administration (NOAA) embarked on an ambitious project to digitize surficial seafloor data from existing National Ocean Service (NOS) smooth sheets in the Gulf of Alaska including numerous bays bordering the Gulf. USGS and NOAA are using the data for the nation-wide usSEABED project that seeks to compile and unify existing seafloor characterization point data into GIS-friendly data using the dbSEABED program (Jenkins, 1997; Reid and others, 2005; Buczkowski and others, 2006; Reid and others, 2006) and for the North Pacific Research Board’s Gulf of Alaska Integrated Ecosystems Research Program (NPRB, GOA-IERP, http://www.nprb.org/gulf-of-alaska-project)...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
CMG,
CMGP,
Coastal and Marine Geology Program,
Earth Science > Biosphere > Aquatic Ecosystems > Marine Habitat, All tags...
Gulf of Alaska,
Marine Geology,
PCMSC,
Pacific Coastal and Marine Science Center,
U.S. Geological Survey,
USGS,
data release,
ecosystem,
ecosystem,
fisheries,
fisheries,
geoscientificinformation,
grain-size analysis,
grainsize,
grainsize,
natural resources,
oceans,
theme, Fewer tags
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