gov.noaa.ngdc.mgg.dem:516
dataset
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
https://www.ncei.noaa.gov/contact
NCEI Contact Information
Information for contacts at NCEI.
information
pointOfContact
2020-05-21
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
3
row
393
.000741
column
337
.000741
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
Seward, Alaska 3 arc-second MHW Coastal Digital Elevation Model
2002-01-01
publication
2002
NOAA National Centers for Environmental Information
NCEI Metadata ID: gov.noaa.ngdc.mgg.dem:516
NOAA National Centers for Environmental Information
publisher
NOAA National Geophysical Data Center
author
NOAA PMEL Center for Tsunami Research (NCTR)
NOAA Center for Tsunami Research
collaborator
mapDigital
Alaska Grids
Southcentral Alaska 2002
The 3 arc-second Seward Alaska Elevation Grid provides bathymetric data of 2.67-second resolution in geographic coordinates. This grid is strictly for tsunami inundation modeling
This grid was constructed for use in tsunami inundation modeling
NGDC, NOS, USGS
completed
historicalArchive
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
https://www.ncei.noaa.gov/contact
NCEI Contact Information
Information for contacts at NCEI.
information
pointOfContact
NOAA National Centers for Environmental Information
DEM Information
dem.info@noaa.gov
pointOfContact
irregular
https://maps.ngdc.noaa.gov/thumbnails/DEM/516.png
Thumbnail of DEM
PNG
Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth
Models/Analyses > DEM > Digital Elevation Model
platform
Global Change Master Directory (GCMD) Platform Keywords
2020-01-09
publication
9.1
NASA Goddard Space Flight Center, Earth Science Data and Information System
https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
custodian
ICSU-WDS > International Council for Science - World Data System
project
Global Change Master Directory (GCMD) Project Keywords
2020-01-09
publication
9.1
NASA Goddard Space Flight Center, Earth Science Data and Information System
https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
custodian
1 meter - < 30 meters
dataResolution
Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
2020-01-09
publication
9.1
NASA Goddard Space Flight Center, Earth Science Data and Information System
https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
custodian
< 1 meter
dataResolution
Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
2020-01-09
publication
9.1
NASA Goddard Space Flight Center, Earth Science Data and Information System
https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
custodian
Coastal Relief
Gridded elevations
theme
Uncontrolled
Continent > North America > United States of America > Alaska
Ocean > Pacific Ocean
Vertical Location > Land Surface
Vertical Location > Sea Floor
place
Global Change Master Directory (GCMD) Location Keywords
2020-01-09
publication
9.1
NASA Goddard Space Flight Center, Earth Science Data and Information System
https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
custodian
Kenai Peninsula
Alaska
Seward
Resurrection Bay
place
Uncontrolled
2002
temporal
None
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
NASA Goddard Space Flight Center, Earth Science Data and Information System
https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
custodian
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.
otherRestrictions
Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
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
Cite as: NOAA National Geophysical Data Center. 2002: Seward, Alaska 3 arc-second MHW Coastal Digital Elevation Model. NOAA National Centers for Environmental Information. Accessed [date].
grid
eng; USA
elevation
Native Dataset Environment: Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2.4.1420
-149.50
-149.25
59.87
60.17
2002-12-01
This grid was developed through funding from the National Tsunami Hazard Mitigation Program. It will be updated as better data become available.
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
NASA Goddard Space Flight Center, Earth Science Data and Information System
https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the 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
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
https://www.ncei.noaa.gov/contact
NCEI Contact Information
Information for contacts at NCEI.
information
distributor
In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Contact NCEI for other distribution options and instructions.
netCDF
4 Classic
https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc.mgg.dem:516/html
HTTPS
Metadata Landing Page
information
https://www.ngdc.noaa.gov/mgg/coastal
HTTPS
DEM text search
Text search for locating completed and planned DEMs.
search
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
https://www.ngdc.noaa.gov/thredds/dodsC/regional/seward_3_mhw_2002.nc.html
OPeNDAP:OPeNDAP
OPeNDAP Dataset Access Form
OPeNDAP Dataset Access Form
download
https://www.ngdc.noaa.gov/thredds/fileServer/regional/seward_3_mhw_2002.nc
HTTPS
Download NetCDF File
Download NetCDF File
download
https://www.ngdc.noaa.gov/thredds/wcs/regional/seward_3_mhw_2002.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/seward_3_mhw_2002.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/seward_3_mhw_2002.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/seward_3_mhw_2002.nc?catalog=https%3A%2F%2Fwww.ngdc.noaa.gov%2Fthredds%2Fcatalog%2Fregional%2Fcatalog.html&dataset=regionalDatasetScan%2Fseward_3_mhw_2002.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 the grid is expressed as an estimated root mean square error (RMSE). The estimate of the RMSE is based on horizontal accuracy tests of the source data which are selected as equal to or less than the intended horizontal RMSE error of the grid. Horizontal positioning of the various source points were compared with each other to verify grid accuracy.
Vertical Positional Accuracy Report
The vertical RMSE is used to determine vertical accuracy of the grid. It accounts for systematic and random errors. The accuracy of bathymetric soundings are within 2% of depth. The original topographic soundings are accurate within one-half the contour interval.
Errant data points were removed from the various sources before processing the grid. The final grid was visually and statistically inspected for completeness using ArcGIS.
Each data set went through a stringent quality control procedure from their respective originators. The developed grid was compared with initial sources, other source control data, and corresponding data between datasets to verify accuracy.
Metadata imported.
2008-11-04T00:00:00
NOAA PMEL Center for Tsunami Research (NCTR)
NOAA Center for Tsunami Research
collaborator
Source Contribution: bathymetric data values; Source Type: online
GEODAS Vol 2, Ver 4.1 and Global Relief
2002-01-01
publication
NOAA National Geophysical Data Center
originator
Data obtained include NOS Hydrographic Surveys
1890-01-01
2001-01-01
Source Contribution: topographic elevation contours and shoreline; Source Type: online
1:25000 and 1:63360 hydrographic vectors, 7.5-minute digital raster graphics
1997-01-01
publication
USGS National Mapping Division
Reston
Virginia, USA
publisher
USGS National Mapping Division
originator
1982-01-01
1982-01-01
asNeeded
Modified for compliance to NCEI Template v1.2.