Metadata: Identification_Information: Citation: Citation_Information: Originator: Kevin M. Befus Originator: Kevin D. Kroeger Publication_Date: 2017 Title: Elevation artifacts in digital bathymetric and topographic models for United States east (east_cdem_v1.tif) and west (west_cdem_v.tif) coasts (polygon shapefile, geographic, NAD83) Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/F7W37TGK Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Other_Citation_Details: The first link is to the publication landing page. The second link is to the page containing the data. And the final link is a direct link to download the data. Online_Linkage: https://doi.org/10.5066/F7W37TGK Online_Linkage: https://www.sciencebase.gov/catalog/item/57ebe895e4b09082500ef4a8 Online_Linkage: https://www.sciencebase.gov/catalog/file/get/57ebe895e4b09082500ef4a8?name=DEM_artifacts.zip Larger_Work_Citation: Citation_Information: Originator: Kevin M. Befus Originator: Kevin D. Kroeger Publication_Date: 2017 Title: Continuous and optimized 3-arcsecond elevation model for United States east and west coasts Edition: 1.0 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/F7W37TGK Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Befus, K.M., Kroeger, K.D., 2017, Continuous and optimized 3-arcsecond elevation model for United States east and west coasts: U.S. Geological Survey data release, https://doi.org/10.5066/F7W37TGK. Online_Linkage: https://doi.org/10.5066/F7W37TGK Online_Linkage: https://www.sciencebase.gov/catalog/item/57dc6e86e4b090824ffe16eb Description: Abstract: Investigations of coastal change and coastal resources often require continuous elevation profiles from the seafloor to coastal terrestrial landscapes. Differences in elevation data collection in the terrestrial and marine environments result in separate elevation products that may not share a vertical datum. This data release contains the assimilation of multiple elevation products into a continuous digital elevation model at a resolution of 3-arcseconds (approximately 90 meters) from the terrestrial landscape to the seafloor for the contiguous U.S., focused on the coastal interface. All datasets were converted to a consistent horizontal datum, the North American Datum of 1983, but the native vertical datum for each dataset was not adjusted. Artifacts in the source elevation products were replaced with other available elevation products when possible, corrected using various spatial tools, or otherwise marked for future correction. This data release contains the assimilation of multiple elevation products into a continuous digital elevation model at a resolution of 3-arcseconds (approximately 90 meters) from the terrestrial landscape to the seafloor for the contiguous U.S. that were constructed using this shapefile. Purpose: The purpose of this dataset is to identify and correct elevation artifacts in the source elevation datasets that can be corrected in future products or were corrected. These artifacts are assigned a Type and Action attribute that is used to correct the source datasets where possible using the processing steps for creating the west_cdem_v1.tif and east_cdem_v1.tif rasters. The primary focus of the artifact delineation was between -50 to 50 meters elevation. Only those interpolation artifacts that could be replaced by other data, were unavoidable/unfillable using other datasets, or were distinguishable from nearby bathymetry or topography were delineated and saved in DEM_artifacts.shp. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2016 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -124.007629 East_Bounding_Coordinate: -65.257277 North_Bounding_Coordinate: 49.014998 South_Bounding_Coordinate: 24.282314 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:57ebe895e4b09082500ef4a8 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: USGS Theme_Keyword: U.S. Geological Survey Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: Vector data Theme_Keyword: Depth Theme_Keyword: National Oceanic and Atmospheric Association Theme_Keyword: NOAA Theme_Keyword: Canadian Hydrographic Service Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: digital elevation models Theme_Keyword: land surface characteristics Place: Place_Keyword_Thesaurus: none Place_Keyword: United States Place_Keyword: New England Place_Keyword: Northwestern Atlantic Ocean Place_Keyword: Gulf of Maine Place_Keyword: South Atlantic Bight Place_Keyword: Middle Atlantic Bight Place_Keyword: Gulf of Mexico Place_Keyword: Maine Place_Keyword: Massachusetts Place_Keyword: Connecticut Place_Keyword: New York Place_Keyword: Long Island Place_Keyword: New Jersey Place_Keyword: Delaware Place_Keyword: Maryland Place_Keyword: Virginia Place_Keyword: North Carolina Place_Keyword: South Carolina Place_Keyword: Georgia Place_Keyword: Florida Place_Keyword: Florida Keys Place_Keyword: Alabama Place_Keyword: Mississippi Place_Keyword: Louisiana Place_Keyword: Texas Place_Keyword: Chesapeake Bay Place_Keyword: California Place_Keyword: Oregon Place_Keyword: Washington Place_Keyword: Puget Sound Access_Constraints: none Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset. These data are not for navigational use. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Kevin D. Kroeger Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2270 Contact_Electronic_Mail_Address: kkroeger@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/57ebe895e4b09082500ef4a8?name=cDEMartifacts_overview.png Browse_Graphic_File_Description: Color image of the polygon shapefile used to correct the terrain model for contiguous U.S. marine coastlines. The source file is DEM_artifacts.shp associated with this data series. Browse_Graphic_File_Type: PNG Data_Set_Credit: Please recognize the U.S. Geological Survey (USGS) as the source of this information. Native_Data_Set_Environment: Microsoft Windows 7 Enterprise Service Pack 1 (64-bit);ESRI ArcGIS 10.3.1.4959 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Features were manually drawn. Many of the artifacts were lines (i.e., infinitely thin) that were delineated by polygonal features with a finite width. The drawn width does not represent an area for the artifact, but rather outlines the general location of the artifact. Logical_Consistency_Report: The individual and merged elevation datasets were checked for accuracy in the coastal area using coloring schemes that highlighted elevations near sea level (e.g., -10 m to 10 m). These areas were delineated manually and at multiple scales. Features contained in this dataset do not locate all elevation artifacts. Completeness_Report: Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The horizontal accuracy of the features were dependent upon the horizontal accuracy of the source terrain models. The feature boundary locations were manually drawn and do not represent an exact position or boundaries of an artifact, but instead were meant to indicate the presence of an artifact within the area encompassed by the polygon feature. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The shapfile has no vertical component. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: P.G. Grothe Originator: L.A. Taylor Originator: B.W. Eakins Originator: K.S. Carignan Originator: D.Z. Friday Originator: M. Love Publication_Date: 2012 Title: South Padre Island, TX 1/3 arc-second NAVD 88 DEM Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: NOAA National Geophysical Data Center Boulder, CO Publisher: NOAA Other_Citation_Details: The vertical datum for the data is NAVD 88. The horizontal datum for the data is WGS 1984. The original cell-size is 1/3-arcsecond. Online_Linkage: http://www.ngdc.noaa.gov/dem/squareCellGrid/download/3983 Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2012 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: south_padre_tx_1-3_arc-second_navd88.asc Source_Contribution: Full dataset used to replace overlaping data in western_gom_crm_v1. Source_Information: Source_Citation: Citation_Information: Originator: L.A. Taylor Originator: B.W. Eakins Originator: K.S. Carignan Originator: R.R. Warnken Originator: D.C. Schoolcraft Originator: G.F. Sharman Publication_Date: 2008 Title: Cape Hatteras, NC 1/3 arc-second MHW DEM Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: NOAA National Geophysical Data Center Boulder, CO Publisher: NOAA Other_Citation_Details: The vertical datum for the data is the mean height of water (MHW). The horizontal datum for the data is WGS 1984. The original cell-size is 1/3-arcsecond. Original disclaimer: "THIS DATA IS NOT TO BE USED FOR NAVIGATION. Although these data are of high quality and useful for planning and modeling purposes, they do not necessarily reflect current conditions, nor do they depict data which is on a nautical chart. For navigation please refer to the NOS nautical chart series." Online_Linkage: http://www.ngdc.noaa.gov/dem/squareCellGrid/download/296 Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2008 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: cape_hatteras.asc Source_Contribution: The cape_hatteras data were used to replace se_atl_crm_v1 for an area outlined by a feature in DEM_artifacts.shp covering the upper Gulf of Maine in one feature south of Cape Hatteras, North Carolina. Source_Information: Source_Citation: Citation_Information: Originator: M.R. Love Originator: C.J. Amante Originator: B.W. Eakins Originator: L.A. Taylor Publication_Date: 2012 Title: Northern Gulf Coast, LA/MS/FL/AL 1 arc-second NAVD 88 DEM Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: Boulder, CO Publisher: U.S. Dept. of Commerce Other_Citation_Details: The vertical datum for the data is NAVD 88. The horizontal datum for the data is WGS 1984. The original cell-size is 1-arcsecond. Online_Linkage: http://www.ngdc.noaa.gov/dem/squareCellGrid/download/720 Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2012 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: northern_gulf_coast_navd_88.grd Source_Contribution: Full dataset was used to replace overlapping data in central_gom_crm_v1 except for areas in Vdatum_NGulfCoast indicated with type=Replace in DEM_artifacts.shp. Source_Information: Source_Citation: Citation_Information: Originator: E.R. Twomey Originator: R.P. Signell Publication_Date: 2013 Title: Construction of a 3-Arcsecond Digital Elevation Model for the Gulf of Maine Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Other_Citation_Details: The vertical datum for the data is NAVD 88. The horizontal datum for the data is NAD 1983. The original cell-size is 3-arcseconds. Online_Linkage: http://pubs.usgs.gov/of/2011/1127/ Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2013 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: gom03_v1_0.tif Source_Contribution: The gom03_v1_0.tif data were used to replace ne_atl_crm_v1 for areas outlined by two features in DEM_artifacts.shp covering the upper Gulf of Maine in one feature and Martha's Vinyard and Nantucket Islands in the other. Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Centers for Environmental Information Publication_Date: unknown Title: US Coastal Relief Model - Northeast Atlantic Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: National Oceanic and Atmospheric Administration National Centers for Environmental Information Publisher: NOAA Other_Citation_Details: The vertical datum was not specified in the creation of the dataset from multiple bathymetric products with variable tidal datums. The large spatial resolution leads to cells that span elevations equivalient to the datum uncertainty introduced by the tidal range, making the specification of a vertical datum from a mean tidal position impossible. The horizontal datum is NAD 1983. The original cell size is 3-arcseconds. Original disclaimer: "THIS DATA IS NOT TO BE USED FOR NAVIGATION. Although these data are of high quality and useful for planning and modeling purposes, they do not necessarily reflect current conditions, nor do they depict data which is on a nautical chart. For navigation please refer to the NOS nautical chart series." Online_Linkage: http://www.ngdc.noaa.gov/mgg/coastal/grddas01/grddas01.htm Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20160601 Source_Currentness_Reference: retrieval date Source_Citation_Abbreviation: ne_atl_crm_v1.flt Source_Contribution: All of the ne_atl_crm_v1 dataset was used for outlining artifacts in DEM_artfacts.shp. Only cells with an elevation equal to or less than 0 meters in the dataset datum were retained in the final topographic and bathymetry product. ne_atl_crm_v1 data were not directly used for areas with merging type artifacts or where other elevation data were used to replace ne_atl_crm_v1 data, outlined in DEM_artifacts.shp. Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Centers for Environmental Information Publication_Date: unknown Title: US Coastal Relief Model - Southeast Atlantic Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: National Oceanic and Atmospheric Administration National Centers for Environmental Information Publisher: NOAA Other_Citation_Details: The vertical datum was not specified in the creation of the dataset from multiple bathymetric products with variable tidal datums. The large spatial resolution leads to cells that span elevations equivalient to the datum uncertainty introduced by the tidal range, making the specification of a vertical datum from a mean tidal position impossible. The horizontal datum is NAD 1983. The original cell size is 3-arcseconds. Original disclaimer: "THIS DATA IS NOT TO BE USED FOR NAVIGATION. Although these data are of high quality and useful for planning and modeling purposes, they do not necessarily reflect current conditions, nor do they depict data which is on a nautical chart. For navigation please refer to the NOS nautical chart series." Online_Linkage: http://www.ngdc.noaa.gov/mgg/coastal/grddas02/grddas02.htm Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20160601 Source_Currentness_Reference: retrieval date Source_Citation_Abbreviation: se_atl_crm_v1.flt Source_Contribution: All of the se_atl_crm_v1 dataset was used for outlining artifacts in DEM_artfacts.shp. Only cells with an elevation equal to or less than 0 meters in the dataset datum were retained in the final topographic and bathymetry product. se_atl_crm_v1 data were not directly used for areas with merging type artifacts or where other elevation data were used to replace se_atl_crm_v1 data, outlined in DEM_artifacts.shp. Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Centers for Environmental Information Publication_Date: unknown Title: US Coastal Relief Model - Florida and Eastern Gulf of Mexico Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: National Oceanic and Atmospheric Administration National Centers for Environmental Information Publisher: NOAA Other_Citation_Details: The vertical datum was not specified in the creation of the dataset from multiple bathymetric products with variable tidal datums. The large spatial resolution leads to cells that span elevations equivalient to the datum uncertainty introduced by the tidal range, making the specification of a vertical datum from a mean tidal position impossible. The horizontal datum is NAD 1983. The original cell size is 3-arcseconds. Original disclaimer: "THIS DATA IS NOT TO BE USED FOR NAVIGATION. Although these data are of high quality and useful for planning and modeling purposes, they do not necessarily reflect current conditions, nor do they depict data which is on a nautical chart. For navigation please refer to the NOS nautical chart series." Online_Linkage: http://www.ngdc.noaa.gov/mgg/coastal/grddas03/grddas03.htm Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20160601 Source_Currentness_Reference: retrieval date Source_Citation_Abbreviation: fl_east_gom_crm_v1.flt Source_Contribution: No significant artifacts were found in fl_east_gom_crm_v1.flt. Only cells with an elevation equal to or less than 0 meters in the dataset datum were retained in the final topographic and bathymetry product. Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Centers for Environmental Information Publication_Date: unknown Title: US Coastal Relief Model - Central Gulf of Mexico Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: National Oceanic and Atmospheric Administration National Centers for Environmental Information Publisher: NOAA Other_Citation_Details: The vertical datum was not specified in the creation of the dataset from multiple bathymetric products with variable tidal datums. The large spatial resolution leads to cells that span elevations equivalient to the datum uncertainty introduced by the tidal range, making the specification of a vertical datum from a mean tidal position impossible. The horizontal datum is NAD 1983. The original cell size is 3-arcseconds. Original disclaimer: "THIS DATA IS NOT TO BE USED FOR NAVIGATION. Although these data are of high quality and useful for planning and modeling purposes, they do not necessarily reflect current conditions, nor do they depict data which is on a nautical chart. For navigation please refer to the NOS nautical chart series." Online_Linkage: http://www.ngdc.noaa.gov/mgg/coastal/grddas04/grddas04.htm Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20160601 Source_Currentness_Reference: retrieval date Source_Citation_Abbreviation: central_gom_crm_v1.flt Source_Contribution: All of the central_gom_crm_v1 dataset was used for outlining artifacts in DEM_artfacts.shp. Only cells with an elevation equal to or less than 0 meters in the dataset datum were retained in the final topographic and bathymetry product. central_gom_crm_v1 data were not directly used for areas with merging type artifacts or where other elevation data were used to replace central_gom_crm_v1 data, outlined in DEM_artifacts.shp. Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Centers for Environmental Information Publication_Date: unknown Title: US Coastal Relief Model - Western Gulf of Mexico Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: National Oceanic and Atmospheric Administration National Centers for Environmental Information Publisher: NOAA Other_Citation_Details: The vertical datum was not specified in the creation of the dataset from multiple bathymetric products with variable tidal datums. The large spatial resolution leads to cells that span elevations equivalient to the datum uncertainty introduced by the tidal range, making the specification of a vertical datum from a mean tidal position impossible. The horizontal datum is NAD 1983. The original cell size is 3-arcseconds. Original disclaimer: "THIS DATA IS NOT TO BE USED FOR NAVIGATION. Although these data are of high quality and useful for planning and modeling purposes, they do not necessarily reflect current conditions, nor do they depict data which is on a nautical chart. For navigation please refer to the NOS nautical chart series." Online_Linkage: http://www.ngdc.noaa.gov/mgg/coastal/grddas05/grddas05.htm Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20160601 Source_Currentness_Reference: retrieval date Source_Citation_Abbreviation: western_gom_crm_v1.flt Source_Contribution: All of the western_gom_crm_v1 dataset was used for outlining artifacts in DEM_artfacts.shp. Only cells with an elevation equal to or less than 0 meters in the dataset datum were retained in the final topographic and bathymetry product. western_gom_crm_v1 data were not directly used for areas with merging type artifacts or where other elevation data were used to replace western_gom_crm_v1 data, outlined in DEM_artifacts.shp. Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Centers for Environmental Information Publication_Date: unknown Title: US Coastal Relief Model - Southern California Version 2 Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: National Oceanic and Atmospheric Administration National Centers for Environmental Information Publisher: NOAA Other_Citation_Details: The vertical datum was not specified in the creation of the dataset from multiple bathymetric products with variable tidal datums. The large spatial resolution leads to cells that span elevations equivalient to the datum uncertainty introduced by the tidal range, making the specification of a vertical datum from a mean tidal position impossible. The horizontal datum is NAD 1983. The original cell size is 1-arcsecond. Note that the data files for this reference were a zipped directory containing .grd format rasters, but the linkage incorrectly indicated the data were in NetCDF format on the retrieval date. Original disclaimer: "THIS DATA IS NOT TO BE USED FOR NAVIGATION. Although these data are of high quality and useful for planning and modeling purposes, they do not necessarily reflect current conditions, nor do they depict data which is on a nautical chart. For navigation please refer to the NOS nautical chart series." Online_Linkage: http://www.ngdc.noaa.gov/mgg/coastal/grddas06/grddas06v2.htm Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20160601 Source_Currentness_Reference: retrieval date Source_Citation_Abbreviation: southern_calif_crm_v2_netcdf.zip Source_Contribution: All of the .grd files in the .zip were merged into a topography and bathymetry product. Elevations less than or equal to 0 meters were used to create the final elevation model. Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Centers for Environmental Information Publication_Date: unknown Title: US Coastal Relief Model - Central Pacific Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: National Oceanic and Atmospheric Administration National Centers for Environmental Information Publisher: NOAA Other_Citation_Details: The vertical datum was not specified in the creation of the dataset from multiple bathymetric products with variable tidal datums. The large spatial resolution leads to cells that span elevations equivalient to the datum uncertainty introduced by the tidal range, making the specification of a vertical datum from a mean tidal position impossible. The horizontal datum is NAD 1983. The original cell size is 3-arcseconds. Original disclaimer: "THIS DATA IS NOT TO BE USED FOR NAVIGATION. Although these data are of high quality and useful for planning and modeling purposes, they do not necessarily reflect current conditions, nor do they depict data which is on a nautical chart. For navigation please refer to the NOS nautical chart series." Online_Linkage: http://www.ngdc.noaa.gov/mgg/coastal/grddas07/grddas07.htm Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20160601 Source_Currentness_Reference: retrieval date Source_Citation_Abbreviation: central_pacific_crm_v1.flt Source_Contribution: All of the central_pacific_crm_v1 dataset was used for outlining artifacts in DEM_artfacts.shp. Only cells with an elevation equal to or less than 0 meters in the dataset datum were retained in the final topographic and bathymetry product. central_pacific_crm_v1 data were not directly used for areas with merging or channel type artifacts nor where other elevation data were used to replace central_pacific_crm_v1 data, outlined in DEM_artifacts.shp. Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Centers for Environmental Information Publication_Date: unknown Title: US Coastal Relief Model - Northwest Pacific Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: National Oceanic and Atmospheric Administration National Centers for Environmental Information Publisher: NOAA Other_Citation_Details: The vertical datum was not specified in the creation of the dataset from multiple bathymetric products with variable tidal datums. The large spatial resolution leads to cells that span elevations equivalient to the datum uncertainty introduced by the tidal range, making the specification of a vertical datum from a mean tidal position impossible. The horizontal datum is NAD 1983. The original cell size is 3-arcseconds. Original disclaimer: "THIS DATA IS NOT TO BE USED FOR NAVIGATION. Although these data are of high quality and useful for planning and modeling purposes, they do not necessarily reflect current conditions, nor do they depict data which is on a nautical chart. For navigation please refer to the NOS nautical chart series." Online_Linkage: http://www.ngdc.noaa.gov/mgg/coastal/grddas08/grddas08.htm Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20160601 Source_Currentness_Reference: retrieval date Source_Citation_Abbreviation: nw_pacific_crm_v1.flt Source_Contribution: All of the nw_pacific_crm_v1 dataset was used for outlining artifacts in DEM_artfacts.shp. Only cells with an elevation equal to or less than 0 meters in the dataset datum were retained in the final topographic and bathymetry product. nw_pacific_crm_v1 data were not directly used for areas with merging or channel type artifacts nor where other elevation data were used to replace nw_pacific_crm_v1 data, outlined in DEM_artifacts.shp. Source_Information: Source_Citation: Citation_Information: Originator: United States Geological Survey Publication_Date: 2013 Title: U.S. Geological Survey national elevation dataset Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://ned.usgs.gov/ Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2013 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: individual NED tiles Source_Contribution: 1 by 1 degree seamless sections of the National Elevation Dataset (NED) were downloaded for U.S. coastal topography included within the potential area required for groundwater models of coastal areas. Elevations greater than 8 meters in the final product are all from NED data. Elevations between 8 and 0 meters may be NED values but the source depends on the availability of bathymetry for each grid cell. Source_Information: Source_Citation: Citation_Information: Originator: Canadian Hydrographic Service Publication_Date: 2014 Title: 500m Bathymetry Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: Canadian Hydrographic Service Publisher: Fisheries and Oceans Canada Other_Citation_Details: The horizontal datum for the dataset is global Mercator (Mercator_1SP,EPSG 9804). The vertical datum is "Unknown". The cell size is 500 meters. Additional information can be found in the dataset metadata (http://geoportal.gc.ca/data/500m_Bathymetry/092G_Metadata.xml). DISCLAIMER: "This product has been produced by or for the U.S. Geological Survey and includes data provided by the Canadian Hydrographic Service of the Department of Fisheries and Oceans. The incorporation of data sourced from the Canadian Hydrographic Service of the Department of Fisheries and Oceans within this product does NOT constitute an endorsement by the Canadian Hydrographic Service or the Department of Fisheries and Oceans of this product." Online_Linkage: http://geoportal.gc.ca/data/500m_Bathymetry/092G.bag Type_of_Source_Media: Raster Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2014 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 092G.bag Source_Contribution: This dataset was used to supply values where the merged CRM and NED datasets were missing bathymetry values. Process_Step: Process_Description: Manually outlined and delineated features where the DEMs in this analysis required additional steps to correct artifacts using ArcGIS 10.3. The elevations were checked primarily by using a color scheme that ranged from slightly below sea level to slightly above sea level to accentuate the elevations in the coastal zones. For the U.S. east coast, the range used was primarily -10 m to 10 m relative to zero in the datum of the source data. For the U.S. west coast, -20 m to 20 m and -10 m to 50 m were used to check both coastal zones and as well as deeply incised channels. Process_Date: 2016 Source_Produced_Citation_Abbreviation: DEM_artifacts.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Kevin M. Befus Contact_Organization: University of Wyoming Contact_Address: Address_Type: mailing and physical Address: University of Wyoming Address: 1000 E. University Ave. Address: Dept. 3295 City: Laramie State_or_Province: WY Postal_Code: 82071 Country: USA Contact_Voice_Telephone: 307-766-2390 Contact_Electronic_Mail_Address: kbefus@uwyo.edu Contact_Instructions: Kevin is currently with the University of Wyoming as an Assistant Professor in the Civil and Architectural Engineering Department. His contact information has been updated to reflect this. Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20200807 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Indirect_Spatial_Reference: Contiguous U.S. coastal areas and portions of Canada and Mexico Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-polygon Point_and_Vector_Object_Count: 92 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 Geographic_Coordinate_Units: Decimal seconds Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.2572221 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: DEM_artifacts Entity_Type_Definition: polygon shapefile delineating artifacts identified in analysis. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Type Attribute_Definition: The type of elevation artifact delineated. Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Merging Enumerated_Domain_Value_Definition: A previous or current location in the DEM where merging other datasets resulted in an obvious and unrealistic offset in elevation at the merging location. Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Channel Enumerated_Domain_Value_Definition: A channel artifact that may be related to merging but was treated differently than other merging artifacts. Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Interp Enumerated_Domain_Value_Definition: An interpolation artifact that may or may not be fixed in the east_ and west_cdem_v1 likely related to sparse data in the input DEMs or are an artifact of the creation of those source DEMs Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: DEMname Attribute_Definition: Names of source and product DEMs that contain the artifact delineated by the current feature. These are the source contribution filenames. Attribute_Definition_Source: USGS, NOAA Attribute_Domain_Values: Unrepresentable_Domain: character set Attribute: Attribute_Label: Loc Attribute_Definition: The location of the artifact relative to land. Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: offshore Enumerated_Domain_Value_Definition: Elevation values outlined by the feature are predominantly less than 0 meters. Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: terrestrial Enumerated_Domain_Value_Definition: Elevation values outlined by the feature are predominantly greater than 0 meters. Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: both Enumerated_Domain_Value_Definition: Elevations values are greater than 0 meters as well as less than or equal to 0 meters. The artifact extends from offshore to on shore. Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: Action Attribute_Definition: An action flag used to specify how artifacts should be corrected for the DEM in DEMname. Empty entries exist only for Type=Merging and indicate no additional processing flag for merging-type corrections, but that the correction should be applied (i.e., not "future"). Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: future Enumerated_Domain_Value_Definition: No action taken in current procedure but can be corrected in the future with additional data or data operations. Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fill Enumerated_Domain_Value_Definition: A flag used in the creation of the elevation product indicating areas to extract after an ArcGIS 10.3 Spatial Analyst/Hydrology/Fill tool is run. Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: higher Enumerated_Domain_Value_Definition: A flag used in the creation of the elevation product indicating a higher elevation threshold than 0 meters is needed. Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: replace Enumerated_Domain_Value_Definition: Features outline data to be replaced entirely by the dataset in the ActDEM field. Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: ActDEM Attribute_Definition: Names of source and temporary elevation products that contain the data to correct the artifact delineated by the current feature. ActDEM only has a value when attribute Action is to "replace". No value is entered and ActDEM is left blank where no additional dataset was used to correct an artifact or the correction can be made in the future. Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: character set Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - ScienceBase Contact_Address: Address_Type: mailing and physical Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: DEM_artifacts.zip: ZIP file contains the shapefile and associated components for DEM_artifacts.shp, a browse thumbnail, and the associated FGDC metadata. Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: shapefile Format_Version_Number: ArcGIS 10.3.1 Format_Specification: Esri polygon shapefile Format_Information_Content: This zipfile (7-Zip v9.20) contains a polygon shapefile, associated shapefile components,a browse thumbnail .png image, and metadata for DEM_artifacts.shp. File_Decompression_Technique: Use 7-Zip, WinZip, pkUnzip, or similar to unzip. Transfer_Size: 0.15 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/57ebe895e4b09082500ef4a8?name=DEM_artifacts.zip Network_Resource_Name: https://www.sciencebase.gov/catalog/item/57ebe895e4b09082500ef4a8 Network_Resource_Name: https://doi.org/10.5066/F7W37TGK Access_Instructions: The first link is a direct link to download the data. The second link is to the page containing the data. And the final link is to the publication landing page. Fees: none Metadata_Reference_Information: Metadata_Date: 20211116 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Kevin M. Befus Contact_Organization: University of Wyoming Contact_Address: Address_Type: mailing and physical Address: University of Wyoming Address: 1000 E. University Ave. Address: Dept. 3295 City: Laramie State_or_Province: WY Postal_Code: 82071 Country: USA Contact_Voice_Telephone: 307-766-2390 Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov Contact_Instructions: Kevin is currently with the University of Wyoming as an Assistant Professor in the Civil and Architectural Engineering Department. His contact information has been updated to reflect this. The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid. Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998