gov.noaa.ngdc.mgg.dem:5490 eng; USA utf8 dataset NOAA National Centers for Environmental Information DEM Information dem.info@noaa.gov pointOfContact 2022-03-25 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 3 row 13609 0.00009259259 column 10693 0.00009259259 vertical 1 area true World Geodetic System 1984 WGS 84 2007-08-27 revision https://epsg.org/crs_4326/WGS-84.html WGS 84 GML of World Geodetic System 1984 coordinate reference system. information resourceProvider European Petroleum Survey Group https://epsg.org/home.html European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search publisher urn:ogc:def:crs:EPSG::4326 Mean High Water height MHW height 2012-08-05 revision https://epsg.org/crs_5868/MHW-height.html MHW height GML for Mean High Water height available at the epsg-registry. information resourceProvider European Petroleum Survey Group https://epsg.org/home.html European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search publisher urn:ogc:def:datum:EPSG::5868 Astoria, Oregon 1/3 arc-second MHW Coastal Digital Elevation Model 2016-06-18 publication Third NOAA National Centers for Environmental Information publisher Pacific Marine Environmental Laboratory (PMEL) collaborator mapDigital PMEL DEMs Astoria, Oregon 1/3 arc-second MHW DEM version 3 NOAA's National Centers for Environmental Information (NCEI) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-topographic DEMs are used to support individual coastal States as part of the Pacific Marine Environmental Laboratory's (PMEL) efforts to support NOAA's tsunami forecast system and for tsunami inundation modeling, improve community preparedness and hazard mitigation. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources including: NOAA; the U.S. Geological Survey (USGS); and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to the vertical datum of MHW and horizontal datum of World Geodetic System 1984 geographic (WGS 84). Grid spacing for the DEM is 1/3 arc-second (~10 meters). Developed for the Pacific Marine Environmetal Laboratory (PMEL) in support of NOAA's tsunami forecasting and warning efforts. completed NOAA National Centers for Environmental Information DEM Information dem.info@noaa.gov pointOfContact asNeeded https://gis.ngdc.noaa.gov/arcgis/rest/directories/arcgisoutput/DEM_mosaics/DEM_global_mosaic_hillshade_ImageServer/_ags_959a5161_ba79_4af7_bf9e_bd1f5ed86da4.jpg Thumbnail of DEM JPG Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth Earth Science > Land Surface > Topography > Terrain Elevation > Topographical Relief Maps Earth Science > Oceans > Coastal Processes > Coastal Elevation theme Global Change Master Directory (GCMD) Science and Services Keywords Models/Analyses > DEM > Digital Elevation Model theme NASA/GCMD Platform Keywords ICSU-WDS > International Council for Science - World Data System project Global Change Master Directory (GCMD) Project Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page 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 information custodian 1 meter - < 30 meters < 1 meter theme NASA/GCMD Data Resolution Keywords Ocean > Pacific Ocean Vertical Location > Land Surface Vertical Location > Sea Floor place Global Change Master Directory (GCMD) Location Keywords Coastal Relief Gridded elevations Integrated bathymetry and topography theme Uncontrolled Astoria Pacific Coast Oregon Washington Columbia River place Uncontrolled 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 dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page 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 information custodian Not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For navigation, please refer to the NOS nautical chart series. Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. Data Stewardship Maturity Report for Astoria v2, Oregon/Washington 1/3 arc-second MHW Coastal Digital Elevation Model 2022 publication NOAA Institutional Repository publisher https://doi.org/10.25923/yrjc-d827 HTTPS Web Browser DSMR Publication at the NOAA Institutional Repository Report documenting the Scientific Data Stewardship Maturity for this dataset. information crossReference sciencePaper NTHMP DEM Project 2009-12-01 publication NOAA National Centers for Environmental Information custodian Citation URL https://www.ncei.noaa.gov/maps/bathymetry/ HTTPS Bathymetric Data Viewer The Bathymetric Data Viewer is an interactive map providing discovery, descriptions, and download capability for bathymetric survey data and digital elevation models archived at NOAA's National Centers for Environmental Information (NCEI). search Citation URL https://www.ngdc.noaa.gov/mgg/coastal HTTPS DEM text search Text search for locating completed and planned DEMs. search mapDigital NOAA Coastal Inundation DEMs Named by primary coastal city, state in DEM. NOAA's National Centers for Environmental Information (NCEI) is building high-resolution digital elevation models (DEMs) to support individual coastal States as part of the National Tsunami Hazard Mitigation Program (NTHMP) effort to improve community preparedness and hazard mitigation. These integrated bathymetric-topographic DEMs are used to support tsunami and coastal inundation mapping. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NCEI, the U.S. National Ocean Service (NOS), the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), the Federal Emergency Management Agency (FEMA), and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to various vertical and horizontal datums depending on the specific modeling requirements of each State. For specific datum information on each DEM, refer to the appropriate DEM documentation. Cell sizes also vary depending on the specification required by modelers in each State, but typically range from 8/15 arc-second (~16 meters) to 8 arc-seconds (~240 meters). largerWorkCitation Digital Elevation Model of Astoria, Oregon: Procedures, Data Sources, and Analysis 2012-06-30 publication NOAA National Centers for Environmental Information publisher NOAA National Centers for Environmental Information DEM Information dem.info@noaa.gov pointOfContact Citation URL https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/astoria_13_mhw_2012.pdf Digital Elevation Model of Astoria, Oregon: Procedures, Data Sources and Analysis Report describing the development of the Astoria DEM download 34 pages crossReference userGuide grid eng; USA elevation Native Dataset Environment: Linux 4.1.6-200.fc22.x86_64 #1 x86_64 GNU/Linux -124.59 -123.60 45.90 47.16 1933-01-01 2014-04-23 Digital Elevation Models: Color Shaded Relief ArcGIS Image Service 2011-10-19 creation DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://ngdc.noaa.gov/mgg/coastal/coastal.html HTTPS Integrated Models of Coastal Relief at NGDC Please see website for more information about Coastal DEMs. information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=feb3c625dc094112bb5281c17679c769 HTTPS NOAA GeoPlatform Entry for Digital Elevation Models Global Mosaic (Color Shaded Relief) NOAA GeoPlatform listing for Digital Elevation Models Global Mosaic (Color Shaded Relief) information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=d41f39c8a6684c54b62c8f1ab731d5ad ESRI:ArcGIS NOAA GeoPlatform Entry for DEM Footprints ArcGIS Map Service A map service showing the location and coverage of land and seafloor digital elevation models (DEMs) available. search publisher This is an ArcGIS image service showing color shaded relief visualizations of high-resolution digital elevation models (DEMs) of U.S. coastal regions. NOAA's National Geophysical Data Center (NGDC) builds and distributes high-resolution coastal digital elevation models (DEMs) that integrate ocean bathymetry and land topography to support NOAA's mission to understand and predict changes in Earth's environment, and conserve and manage coastal and marine resources to meet our Nation's economic, social, and environmental needs. They can be used for modeling of coastal processes (tsunami inundation, storm surge, sea-level rise, contaminant dispersal, etc.), ecosystems management and habitat research, coastal and marine spatial planning, and hazard mitigation and community preparedness. DEMs included in this visualization: High-resolution DEMs of select U.S. coastal communities and surrounding areas. Most are at a resolution of 1/3 to 1 arc-second (approx 10-30 m); U.S. Coastal Relief Model: A 3 arc-second (approx 90 m) comprehensive view of the conterminous U.S. coastal zone, Puerto Rico, and Hawaii; Southern Alaska Coastal Relief Model: A 24 arc-second (approx. 500 m) model of Southern Alaska, spanning the Bering Sea, Aleutian Islands, and Gulf of Alaska. This map service can be used as a basemap. It has a transparent background, so it can also be shown as a layer on top of a different basemap. Please see NGDC's corresponding DEM Footprints map service for polygon footprints and more information about the individual DEMs used to create this composite view. NCEI GIS Team NOAA National Centers for Environmental Information ncei.gis@noaa.gov pointOfContact DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING theme Global Change Master Directory (GCMD) Service Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page 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 information custodian These data not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For official navigation products, please refer to the U.S. nautical charts available from the NOAA Office of Coast Survey: http://www.nauticalcharts.noaa.gov. ArcGIS Image Service 10.7 1 -180 180 -90 90 tight ArcGIS for Server REST endpoint for image service https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer ESRI:ArcGIS ArcGIS Map Service Digital Elevation Models Global Mosaic (Color Shaded Relief) ArcGIS Image Service REST endpoint for Digital Elevation Models Global Mosaic (Color Shaded Relief) ArcGIS image service search WMS Get Capabilities https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer/WMSServer?request=GetCapabilities&service=WMS OGC:WMS Open Geospatial Consortium Web Map Service (WMS) Digital Elevation Models Global Mosaic (Color Shaded Relief) Web Map Service (WMS) Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Models Global Mosaic (Color Shaded Relief) search NCEI Digital Elevation Model Extents ArcGIS Feature Layer 2022-10-24 creation DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://www.ncei.noaa.gov/products/coastal-elevation-models HTTPS Coastal Elevation Models at NCEI information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=0afa88a1701749dbbf76fcadca4f77f3 HTTPS NOAA GeoPlatform Entry for NCEI Digital Elevation Model (DEM) Extents NOAA GeoPlatform listing for NCEI Digital Elevation Model (DEM) Extents information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=c876e3c96a8642ab8557646a3b4fa0ff HTTPS NOAA GeoPlatform Entry for DEM Global Mosaic (Elevation Values) NOAA GeoPlatform listing for DEM Global Mosaic (Elevation Values) information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=e11ebaeb19544bb18c2afe440f063062 HTTPS NOAA GeoPlatform Entry for DEM Global Mosaic (Color Shaded Relief) Shaded relief visualization of a global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI. information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=e9ba2e7afb7d46cd878b34aa3bfce042 ESRI:ArcGIS Digital Elevation Models Mosaic (Individual DEMs) An image service providing access to bathymetric/topographic digital elevation models stewarded at NOAA's National Centers for Environmental Information. Either individual DEMs or small subsets can be accessed through this service. search publisher A map service showing the location and coverage of land and seafloor digital elevation models (DEMs) available from NOAA's National Centers for Environmental Information (NCEI). NCEI builds and distributes high-resolution, coastal digital elevation models (DEMs) that integrate ocean bathymetry and land topography to support NOAA's mission to understand and predict changes in Earth's environment, and conserve and manage coastal and marine resources to meet our Nation's economic, social, and environmental needs. They can be used for modeling of coastal processes (tsunami inundation, storm surge, sea-level rise, contaminant dispersal, etc.), ecosystems management and habitat research, coastal and marine spatial planning, and hazard mitigation and community preparedness. Layers available in the map service: Layers 1-4: DEMs by Category (includes various DEMs, both hosted at NCEI, and elsewhere on the web); Layers 6-11: NCEI DEM Projects (DEMs hosted at NCEI, color-coded by project); Layer 12: All NCEI Bathymetry DEMs (All bathymetry or bathy-topo DEMs hosted at NCEI). NCEI GIS Team NOAA National Centers for Environmental Information ncei.gis@noaa.gov pointOfContact DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING theme Global Change Master Directory (GCMD) Service Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page 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 information custodian These data not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For official navigation products, please refer to the U.S. nautical charts available from the NOAA Office of Coast Survey: https://www.nauticalcharts.noaa.gov. ArcGIS Feature Service 11.0 1 -180 180 -90 90 tight ArcGIS Server REST endpoint for feature service https://services2.arcgis.com/C8EMgrsFcRFL6LrL/arcgis/rest/services/ncei_dem_extents/FeatureServer HTTPS ESRI Feature Service REST Specification NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service REST endpoint for NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service search netCDF 4 Classic NOAA National Centers for Environmental Information DEM Information dem.info@noaa.gov pointOfContact https://www.ngdc.noaa.gov/thredds/dodsC/regional/astoria_13_mhw_2012.nc.html OPeNDAP:OPeNDAP OPeNDAP Dataset Access Form OPeNDAP Dataset Access Form download https://www.ngdc.noaa.gov/thredds/fileServer/regional/astoria_13_mhw_2012.nc HTTPS Download NetCDF File Download NetCDF File download https://www.ngdc.noaa.gov/thredds/wcs/regional/destin_13_navd88_2016.nc?service=WCS&version=1.0.0&request=GetCapabilities OGC:WCS Web Coverage Service GetCapabilities Web Coverage Service GetCapabilities information https://www.ngdc.noaa.gov/thredds/wms/regional/astoria_13_mhw_2012.nc?service=WMS&version=1.3.0&request=GetCapabilities OGC:WMS Web Map Service GetCapabilities Web Map Service GetCapabilities information https://www.ngdc.noaa.gov/thredds/ncss/regional/astoria_13_mhw_2012.nc/dataset.html HTTPS Download a subset of the NetCDF Download a subset of the NetCDF download https://www.ngdc.noaa.gov/thredds/ncml/regional/astoria_13_mhw_2012.nc?catalog=https%3A%2F%2Fwww.ngdc.noaa.gov%2Fthredds%2Fcatalog%2Fregional%2Fcatalog.html&dataset=regionalDatasetScan%2Fastoria_13_mhw_2012.nc HTTPS NetCDF Markup Language file NetCDF Markup Language file information repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 dataset Horizontal Positional Accuracy Report The horizontal accuracy of bathymetric and topographic features in the DEM is dependent upon DEM cell size and the accuracy of the input datasets used to determine corresponding cell values. Topography: 10 meters. Positional accuracy of input topographic datasets limits accuracy of corresponding cell values in DEM. NED topography: 10 meters, Lidar: less than 1 meter. DEM cell-value relative-contribution factors: Lidar: 1000 to 10, Topographic DEM: 10, NED: 1. Bathymetry: less than 1 meter to a few kilometers. Positional accuracy of input bathymetric datasets limits accuracy of corresponding cell values in DEM. USACE: ~ 5 meters, Multibeam data: ranging from less than 1 meter to 10 meters . DEM cell-value relative-contribution factors: USACE and NOS hydrographic surveys: 100, Multibeam: 1, Bathymetric lidar: 10, Bathymetric pre-surface: 1. Vertical Positional Accuracy Report The vertical accuracy of bathymetric and topographic features in the DEM is dependent upon the accuracy of the input datasets used to determine corresponding cell values. Topography: 9 cm to 1 meter. Vertical accuracy of input topographic datasets limits accuracy of corresponding cells in DEM. DEM cell-value relative-contribution factors: Lidar: 1000 to 10, Topographic DEM: 10, NED: 1. Bathymetry: less than 1 meter to 5% of water depth. Vertical accuracy of input bathymetric datasets limits accuracy of corresponding cells in DEM. NOS hydrographic surveys: about 1% of water depth. DEM cell-value relative-contribution factors: USACE and NOS hydrographic surveys: 100, Multibeam: 1, Bathymetric lidar: 10, Bathymetric pre-surface: 1. Gridding interpolation to determine cell values between sparse soundings in deep water degrades the vertical accuracy of corresponding elevations. NCEI made every effort to obtain all available digital topographic and bathymetric datasets in the region for use in building the DEM. Datasets were visually compared internally and externally (with other overlapping datasets and satellite images and maps) in ESRI ArcGIS for identification of anomalous elevations or data inconsistencies. Where elevation inconsistencies occurred, the most recent and/or highest resolution data set was selected for use in that region. Elevations in the older and/or lower-resolution datasets were superceded prior to building the DEM. All datasets obtained by NCEI were converted to common horizontal and vertical datums of WGS 84 geographic and NAVD 88, respectively, using VDatum. They were also converted to common file format for visualization and inspection. 2012-04-05T00:00:00 Matthew R. Love NOAA National Centers for Environmental Information pointOfContact Datasets were visually inspected with ArcGIS for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency. 2012-04-15T00:00:00 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 1/3 arc-second grid that interpolated to fill empty cells. Points extracted every 5 meters along the coastline were also included to ensure that the bathymetric grid reached zero at the coast. The resulting Arc ASCII grid was imported into ArcGIS and clipped to the coastline to remove values over land. 2012-04-16T00:00:00 xyz files for each input dataset were gridded using MB-System's 'mbgrid' tool, which utilizes a high-tension spline interpolation method to fill grid cells with no input elevation values. Preferential weighting was given to more recent, higher-accuracy datasets. 2012-04-17T00:00:00 The DEM was quantitatively evaluated by comparing with source datasets. 2012-04-20T00:00:00 The DEM was updated to correct a vertical datum problem in bathymetric areas. 2013-10-10T00:00:00 Source Contribution: Swath Sonar Survey Data NCEI Multibeam Bathymetry Database 2004-01-01 publication NOAA National Centers for Environmental Information publisher https://www.ngdc.noaa.gov/mgg NCEI Multibeam Bathymetry Database Multibeam Swath Sonar Survey Data download 1996-01-01 2014-01-01 Source Contribution: topographic DEM USGS NED topography 2013-11-01 publication DOI/USGS > U.S. Geological Survey, Department of the Interior originator https://lta.cr.usgs.gov/NED USGS National Elevation Dataset Digital database of U.S. topography, in raster form (DEM) download 1936-00-01 2008-01-01 Source Contribution: hydrographic surveys NOS Hydrographic Surveys 2012-03-02 publication NOAA National Centers for Environmental Information publisher https://www.ngdc.noaa.gov/mgg NOS Hydrographic Survey Database Digital database of NOS hydrographic surveys that date back to the late 19th century. download 1928-01-01 2014-01-01 Source Contribution: Topographic Lidar LAS 2010 USACE Lidar: Columbia River (OR,WA) (NAVD88) 2010-01-01 publication Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM) originator http://coast.noaa.gov/digitalcoast/ NOAA OCM Digital Coast This centralized, user-friendly, and cost-effective information repository was developed by the NOAA's Office for Coastal Management for the coastal managers, planners, decision-makers, and technical users who are charged to manage the nation’s coastal and ocean resources to sustain vibrant coastal communities and economies. download 2009-11-16 2010-07-02 Source Contribution: Topographic Lidar LAS 2002 NOAA Lidar: Willapa Bay, WA Mudflat(NAVD88) 2002-01-01 publication Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM) originator http://coast.noaa.gov/digitalcoast/ NOAA OCM Digital Coast This centralized, user-friendly, and cost-effective information repository was developed by the NOAA's Office for Coastal Management for the coastal managers, planners, decision-makers, and technical users who are charged to manage the nation’s coastal and ocean resources to sustain vibrant coastal communities and economies. download 2002-03-26 2002-04-24 Source Contribution: Topobathy Lidar LAS 2009-2011 USACE NCMP Topobathy Lidar: Pacific Coast (OR,WA) (NAVD88) 2011-01-01 publication Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM) originator http://coast.noaa.gov/digitalcoast/ NOAA OCM Digital Coast This centralized, user-friendly, and cost-effective information repository was developed by the NOAA's Office for Coastal Management for the coastal managers, planners, decision-makers, and technical users who are charged to manage the nation’s coastal and ocean resources to sustain vibrant coastal communities and economies. download 2010-06-18 2011-06-10 Source Contribution: vertical datum transformation tool VDatum software v. 3.4 2014-05-13 publication DOC/NOAA/NOS National Ocean Service, NOAA, U.S. Department of Commerce originator https://vdatum.noaa.gov/ VDatum Vertical Datum Transformation tool download modelDigital 2014-05-13 annually 2019-02-14 Kelly Carignan NOAA National Centers for Environmental Information kelly.carignan@noaa.gov pointOfContact