gov.noaa.nmfs.inport:24305 eng UTF8 dataset Alaska Fisheries Science Center 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA https://www.afsc.noaa.gov WWW:LINK-1.0-http--link Website Website for this organization information 0700-1700 Pacific Time resourceProvider Prescott, Megan megan.prescott@noaa.gov pointOfContact 2026-03-04T19:17:17 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) AFSC/RACE/GAP/Prescott: Norton Sound Shoreline AFSC/RACE/GAP/Prescott: Norton Sound Shoreline 2015 publication NOAA/NMFS/EDM 24305 https://www.fisheries.noaa.gov/inport/item/24305 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information Prescott, Megan megan.prescott@noaa.gov originator https://www.afsc.noaa.gov/RACE/groundfish/bathymetry/Norton_Sound_Shoreline.zip WWW:LINK-1.0-http--link Citation URL Online Resource download We assembled approximately 230,000 National Ocean Service (NOS) bathymetric soundings from 39 lead-line and single-beam echosounder hydrographic surveys conducted from 1896 to 2005 in Norton Sound, Alaska. These bathymetry data are available from the National Geophysical Data Center (NGDC: http://www.ngdc.noaa.gov), which archives and distributes data that were originally collected by the NOS and others. While various bathymetry data have been downloaded previously from NGDC, compiled, and used for a variety of projects, our effort differed in that we compared and corrected the digital bathymetry by studying the original analog source documents - digital versions of the original survey maps, called smooth sheets. Our editing included deleting erroneous and superseded values, digitizing missing values, and properly aligning all data sets to a common, modern datum. We incorporated 3 multibeam surveys, and added an additional 6,992 single-beam soundings from the 2010 Northern Bering Sea bottom trawl survey to fill in where smooth sheet data was lacking. We proofed and digitized 312 cartographic features, comprised mostly of rocks and islets and also digitized 4,305 verbal sediment descriptors, and digitized or adapted 2,142 km of mainland and 837 km of island shoreline. The purpose for creating this data set was to provide the best available bathymetry and inshore features of Norton Sound for predictive, geospatial modeling of marine resources. These bathymetry data were proofed, edited and digitized by Megan Prescott and Mark Zimmermann.Funding for much of the work, as part of a Groundfish Assessment Program (GAP), was provided by NOAA's Essential Fish Habitat (EFH), Habitat and Ecological Processes Research (HEPR) through the Alaska NMFS Regional Office. Smooth sheet data was obtained from the Nation Geophysical Data Center (NGDC) website. completed Prescott, Megan megan.prescott@noaa.gov pointOfContact Prescott, Megan megan.prescott@noaa.gov custodian notPlanned Alaska North Pacific Ocean Norton Sound bathymetry point theme DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Groundfish Assessment Program project InPort otherRestrictions Cite As: Alaska Fisheries Science Center, [Date of Access]: AFSC/RACE/GAP/Prescott: Norton Sound Shoreline [Data Date Range], https://www.fisheries.noaa.gov/inport/item/24305. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: These data are not to be used for navigation. otherRestrictions Use Constraints: These data are not to be used for navigation. We consider this smooth sheet bathymetry, feature, shoreline and sediment compilation a fairly complete first draft. The Mean High Water (MHW) shoreline was hand-digitized off of georeferenced smooth sheets in a GIS. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 24305 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/24305.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US elevation imageryBaseMapsEarthCover oceans Microsoft Windows 7 Version 6.1 (Build 7600) ; ESRI ArcGIS 10.2.2 -170 -160.77 62.75 65.62 | Currentness: observed 1898 2010 Alaska Fisheries Science Center (206) 526-4000 (206) 526-4004 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA afsc.webmaster@noaa.gov https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center WWW:LINK-1.0-http--link Alaska Fisheries Science Center Website AKFSC Home Page information 0700-1700 Pacific Time distributor https://www.ncei.noaa.gov WWW:LINK-1.0-http--link https://www.ncei.noaa.gov download https://www.afsc.noaa.gov/RACE/groundfish/bathymetry/Norton_Sound_Shoreline.zip WWW:LINK-1.0-http--link https://www.afsc.noaa.gov/RACE/groundfish/bathymetry/Norton_Sound_Shoreline.zip download dataset Completeness Report Our editing included deleting erroneous and superseded values, digitizing missing values, and properly aligning all data sets to a common, modern datum. Conceptual Consistency not applicable unknown otherRestrictions Use Constraints: These data are not to be used for navigation.