NGDC Coastal DEM Metadata Record
gov.noaa.ngdc.mgg.dem:vdatum
eng; USA
utf8
dataset
Matthew R. Love
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Digital Elevation Model Developer
303-497-4742
303-497-6513
325 Broadway, E/GC3
Boulder
Colorado
80305-3328
USA
Matthew.Love@noaa.gov
9am-5pm, M-F, Mountain Time
Contact NGDC's Marine Geology and Geophysics Division. http://www.ngdc.noaa.gov/mgg/aboutmgg/contacts.html
pointOfContact
2012-12-21
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
NOAA VDatum DEM Project
2009-12-01
publication
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Boulder
Colorado
publisher
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (comp)
originator
Citation URL
http://www.ngdc.noaa.gov/mgg/inundation/vdatum/vdatum.html
http:
NOAA VDatum DEM Project
Project web page.
information
NOAA VDatum DEMs
Named by primary coastal city, state in DEM.
NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S.
coastal regions in the Gulf of Mexico. These integrated bathymetric-topographic DEMs were developed for NOAA Coast Survey
Development Laboratory (CSDL) through the American Recovery and Reinvestment Act (ARRA) of 2009 to evaluate the utility of
the Vertical Datum Transformation tool (VDatum), developed jointly by NOAA's Office of Coast Survey (OCS), National Geodetic
Survey (NGS), and Center for Operational Oceanographic Products and Services (CO-OPS). Bathymetric, topographic, and shoreline
data used in DEM compilation are obtained from various sources, including NGDC, the U.S. Coastal Services Center (CSC), the
U.S. Office of Coast Survey (OCS), the U.S. Army Corps of Engineers (USACE), and other federal, state, and local government
agencies, academic institutions, and private companies. DEMs are referenced to the vertical tidal datum
of North American Vertical Datum of 1988 (NAVD 88) or Mean High Water (MHW) and horizontal datum of North American Datum of
1983 (NAD 83). Cell size ranges from 1/3 arc-second (~10 meters) to 1 arc-second (~30 meters).
Developed for the Office of Coast Survey (OCS), NOAA Coast Survey Development Laboratory (CSDL) in support of NOAA's Vertical
Datum Transformation tool (VDatum).
underDevelopment
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
DEM Information
dem.info@noaa.gov
pointOfContact
asNeeded
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
Earth Science > Land Surface > Topography > Topographical Relief
Earth Science > Oceans > Coastal Processes > Coastal Elevation
theme
NASA/GCMD Earth Science Keywords
DEM > Digital Elevation Model
theme
NASA/GCMD Platform Keywords
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
WDC/MGG, BOULDER > World Data Center for Marine Geology and Geophysics, Boulder
theme
NASA/GCMD Data Center Keywords
H: 1 meter - < 30 meters
V: < 1 meter
theme
NASA/GCMD Data Resolution Keywords
Coastal Relief
Gridded elevations
Integrated bathymetry and topography
theme
Uncontrolled
Continent > North America > United States of America
Ocean > Atlantic Ocean > North Atlantic Ocean
Ocean > Atlantic Ocean > North Atlantic Ocean > Gulf of Mexico
Vertical Location > Land Surface
Vertical Location > Sea Floor
place
NASA/GCMD Location Keywords
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 Geophysical Data Center. Not subject to copyright protection within the United States.
While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state
of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of
the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact
of distribution constitute such a warranty.
eng; USA
elevation
Native Dataset Environment: ESRI ArcCatalog 9.3.1.3000
-90.75
-85.00
28.50
31.25
2009-01-01
Digital Elevation Models: Color Shaded Relief ArcGIS Map Service
2011-10-19
creation
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce
http://ngdc.noaa.gov/mgg/coastal/coastal.html
Integrated Models of Coastal Relief at NGDC
Please see NGDC's website for more information about Coastal DEMs at NGDC.
information
publisher
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce
http://www.arcgis.com/home/item.html?id=7f11b445da1a45ccb76b403018302d25
ArcGIS Online Entry
ArcGIS Online listing for Digital Elevation Models: Color Shaded Relief ArcGIS Map Service.
information
publisher
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce
http://www.geoplatform.noaa.gov/home/item.html?id=0e85102781904d46b7c0ac541cb86267
NOAA Geoplatform Entry
NOAA Geoplatform listing for Digital Elevation Models: Color Shaded Relief ArcGIS Map Service
information
publisher
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce
http://maps.ngdc.noaa.gov/arcgis/rest/services/web_mercator/dem_extents/MapServer
DEM Footprints ArcGIS Map Service
A map service showing the location and coverage of land and seafloor digital elevation models (DEMs) available from NOAA's
National Geophysical Data Center.
search
publisher
This is a tiled map 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.
Jesse Varner
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Jesse.Varner@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
NASA/GCMD Services Keywords
NASA
GCMD User Support Office
gcmduso@gcmd.gsfc.nasa.gov
http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
GCMD Feedback Form
Have a Comment for the GCMD?
information
custodian
http://gcmd.nasa.gov/learn/keyword_list.html
GCMD Keywords Page
This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions.
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 Map Service
10
1
-180
180
-90
90
tight
ArcGIS Server REST endpoint for cached map service
http://maps.ngdc.noaa.gov/arcgis/rest/services/web_mercator/dem_hillshades_mosaic/MapServer
http
ArcGIS Map Service
Digital Elevation Models: Color Shaded Relief ArcGIS Cached Map Service
REST endpoint for Digital Elevation Models: Color Shaded Relief ArcGIS cached map service
search
WMS Get Capabilities
http://maps.ngdc.noaa.gov/soap/web_mercator/dem_hillshades_mosaic/MapServer/WMSServer?request=GetCapabilities%26service=WMS
http
Open Geospatial Consortium Web Map Service (WMS)
Digital Elevation Models: Color Shaded Relief Web Map Service (WMS)
Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Models: Color Shaded Relief
search
Digital Elevation Model Footprints ArcGIS Map Service
2011-02-15
creation
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce
http://ngdc.noaa.gov/mgg/coastal/coastal.html
Integrated Models of Coastal Relief at NGDC
Please see NGDC's website for more information about Coastal DEMs at NGDC.
information
publisher
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce
http://www.arcgis.com/home/item.html?id=fc9f6935b39949e4acda2070de720e88
ArcGIS Online Entry
ArcGIS Online listing for Digital Elevation Model Footprints ArcGIS Map Service.
information
publisher
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce
http://www.geoplatform.noaa.gov/home/item.html?id=62340a814613492cb390c8b8f801cb83
NOAA Geoplatform Entry
NOAA Geoplatform listing for Digital Elevation Model Footprints ArcGIS Map Service
information
publisher
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce
http://maps.ngdc.noaa.gov/arcgis/rest/services/web_mercator/dem_hillshades_mosaic/MapServer
DEM Color Shaded Relief Map Service
A map service showing color shaded relief visualizations of land and seafloor digital elevation models (DEMs) available from
NOAA's National Geophysical Data Center.
search
publisher
A map service showing the location and coverage of land and seafloor digital elevation models (DEMs) available from NOAA's
National Geophysical Data Center. 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. Layers available in the map service: Layers 1-4: DEMs by Category (includes various
DEMs, both hosted at NGDC, and elsewhere on the web); Layers 6-11: NGDC DEM Projects (DEMs hosted at NGDC, color-coded by
project); Layer 12: All NGDC Bathymetry DEMs (All bathymetry or bathy-topo DEMs hosted at NGDC).
Jesse Varner
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Jesse.Varner@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
NASA/GCMD Services Keywords
NASA
GCMD User Support Office
gcmduso@gcmd.gsfc.nasa.gov
http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
GCMD Feedback Form
Have a Comment for the GCMD?
information
custodian
http://gcmd.nasa.gov/learn/keyword_list.html
GCMD Keywords Page
This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions.
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 Map Service
10
1
-180
180
-90
90
tight
ArcGIS Server REST endpoint for dynamic map service
http://maps.ngdc.noaa.gov/arcgis/rest/services/web_mercator/dem_extents/MapServer
http
ArcGIS Map Service
Digital Elevation Model Footprints ArcGIS Dynamic Map Service
REST endpoint for Digital Elevation Model Footprints ArcGIS dynamic map service
search
WMS Get Capabilities
http://maps.ngdc.noaa.gov/soap/web_mercator/dem_extents/MapServer/WMSServer?request=GetCapabilities%26service=WMS
http
Open Geospatial Consortium Web Map Service (WMS)
Digital Elevation Model Footprints Web Map Service (WMS)
Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Model Footprints
search
Lisa A. Taylor
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6767
(303) 497-6513
NOAA/NESDIS/NGDC 325 Broadway
Boulder
CO
80305-3328
USA
Lisa.A.Taylor@noaa.gov
7:30 - 5:00 Mountain
Contact Data Center
distributor
None
ESRI Arc ASCII
1
ASCII text version of ESRI ArcGIS raster format
WINZIP
netCDF
1
WINZIP
http://www.ngdc.noaa.gov/mgg/inundation/vdatum/vdatum.html
NOAA VDatum DEM Project
Project web page.
information
http://www.ngdc.noaa.gov/mgg/inundation/vdatum/vdatum.html
NOAA VDatum DEM Project
Project web page.
information
dataset
Horizontal Positional Accuracy Report
The horizontal accuracy of bathymetric and topographic features in the DEMs are dependent upon DEM cell size and the accuracy
of input datasets used to determine corresponding cell values.
Vertical Positional Accuracy Report
The vertical accuracy of bathymetric and topographic features in the DEM is dependent upon DEM cell size and the accuracy
of input datasets used to determine corresponding cell values. Gridding interpolation to determine values between sparse NOS
hydrographic soundings in deep water degrades the vertical accuracy of deep-water elevations.
NGDC makes every effort to obtain all available digital topographic and bathymetric datasets in each region for use in building
the DEMs.
Datasets are 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 are selected for use in that region. Elevations in the older and/or lower-resolution
datasets are deleted prior to building the DEMs.
All datasets obtained by NGDC are converted to common horizontal and vertical datums of NAD 83 geographic and NAVD 88, respectively,
using FME and VDatum transformation tool. They are also converted to common file format, ESRI point shapefiles, for visualization
and inspection.
2009-12-01T00:00:00
Matthew R. Love
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Matthew.Love@noaa.gov
pointOfContact
Datasets are visually inspected with ArcGIS for identification and editing of data anomalies. Datasets are then compared with
overlapping datasets to ensure data consistency.
2009-12-01T00:00:00
xyz files of the bathymetric data are surfaced using GMT's 'surface' tool onto a 1 arc-second grid that is interpolated to
fill empty cells. Points extracted every 10 meters along the coastline are also included to ensure that the bathymetric grid
reaches zero at the coast. The resulting Arc ASCII grid is imported into ArcGIS and clipped to the coastline to remove values
over land.
2009-12-01T00:00:00
xyz files for each input dataset are 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 is given to more recent, higher-accuracy
datasets. Gridding is typically performed in quadrants, each with a 5% data buffer. The grids are imported in ArcGIS and seamlessly
merged to create an NAVD 88 DEM.
2009-12-01T00:00:00
The DEMs are quantitatively evaluated by comparing with source datasets and with elevation values extracted from NGS geodetic
monuments. They are visually evaluated by converting to UTM-zone coordinates (units of meters horizontally and vertically)
and then creating a slope grid to identify gridding artifacts in the DEMs.
2009-12-01T00:00:00
NOAA's VDatum transformation tool is used to derive an NAVD 88-to-MHW conversion grid. This grid is then added to the NAVD
88 DEM to create a MHW DEM.
2009-12-01T00:00:00
annually
This metadata was automatically generated from the Content Standard for Digital Geospatial Metadata: Extensions for Remote
Sensing Metadata standard (version FGDC-STD-012-2002) using the 2012-08-07 version of the FGDC RSE to ISO 19115-2 transform
for DEMs.
Translated from FGDC 2012-08-08T17:16:57.569-06:00
Kelly Carignan
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
kelly.carignan@noaa.gov
pointOfContact