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Metadata Identifier: gov.noaa.ngdc.mgg.dem:673

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 Mobile, Alabama Coastal Digital Elevation Model 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). The NOAA VDatum DEM Project was funded by the American Recovery and Reinvestment Act (ARRA) of 2009 (http://www.recovery.gov/).
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SV_Identification

Count Component Title Type
1 Footprints ArcGIS Map Service Digital Elevation Model Footprints ArcGIS Map Service ArcGIS Map Service
1 Color Shaded Relief ArcGIS Map Service Digital Elevation Models: Color Shaded Relief ArcGIS Map Service ArcGIS Map Service
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CI_Citation

Count Component Title Date Citation Identifier
1 Baldwin County topographic lidar
  • 2001-01-01
1 Composite Shoreline and associated data of Alabama State Composite, AL_COMP
  • 2001-01-01
1 Digital Elevation Model Footprints ArcGIS Map Service
  • 2011-02-15
1 Digital Elevation Models of Mobile, Alabama: Procedures, Data Sources, and Analysis
  • 2010-01-01
1 Digital Elevation Models: Color Shaded Relief ArcGIS Map Service
  • 2011-10-19
1 Little Lagoon Side Scan Sonar Surveys
  • 2008-01-01
1 Mean High Water height
  • 2012-08-05
1 Mobile County topographic lidar
  • 2002-01-01
1 Mobile, Alabama Coastal Digital Elevation Model
  • 2009-12-01
1 NASA/GCMD Data Center Keywords
    1 NASA/GCMD Data Resolution Keywords
      1 NASA/GCMD Earth Science Keywords
        1 NASA/GCMD Location Keywords
          1 NASA/GCMD Platform Keywords
            2 NASA/Global Change Master Directory (GCMD) Earth Science Services Keywords NASA/GCMD Services Keywords
              1 NOAA Coastal Services Center Coastal Bathymetric-Topographic Lidar
              • 2005-01-01
              1 NOAA VDatum DEM Project
              • 2009-12-01
              1 NOS Hydrographic Surveys
              • 2009-01-01
              1 Shuttle Radar Topography Mission (SRTM)
              • 2008-01-01
              1 USACE Hydrographic Surveys
              • 2009-01-01
              2 Uncontrolled
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                CI_Series

                Count Component Name Issue Identification Page
                1 NOAA VDatum DEMs Mobile, Alabama MHW
                1 NOAA VDatum DEMs Named by primary coastal city, state in DEM.
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                CI_ResponsibleParty

                Count Component Individual Organization Position Email Role Linkage
                1 resourceProvider http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:datum:EPSG::5868
                12 Citation URL http://www.ngdc.noaa.gov/dem/squareCellGrid/download/673
                2 GCMD Valids custodian http://gcmd.nasa.gov/learn/keyword_list.html
                1 Baldwin County Geographic Information Systems (GIS) Department originator
                1 Barry W. Eakins originator
                1 Christopher J. Amante originator
                1 City of Gulf Shores, AL, Coastal Monitoring Program, administered by Olsen Associates, Inc., Jacksonville, FL. originator
                8 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce publisher http://ngdc.noaa.gov/mgg/coastal/coastal.html
                3 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce publisher
                2 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce originator
                2 DEM Info DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce DEM Information dem.info@noaa.gov pointOfContact
                1 DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, NOAA, U.S. Department of Commerce originator
                1 DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S Department of Commerce originator
                1 DOC/NOAA/NOS/OCS/CSDL > Coast Survey Development Laboratory, OCS, NOS, NOAA, U.S. Department of Commerce originator
                1 EPSG Registry European Petroleum Survey Group publisher http://www.epsg-registry.org/
                2 Varner, Jesse Jesse Varner DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Jesse.Varner@noaa.gov pointOfContact
                1 Kelly Carignan Kelly Carignan DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce kelly.carignan@noaa.gov pointOfContact
                1 Lisa A. Taylor originator
                1 Matthew R. Love originator
                2 Matthew R. Love DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Digital Elevation Model Developer Matthew.Love@noaa.gov pointOfContact
                1 Mobile County Engineering Department originator
                2 GCMD User Support Office NASA GCMD User Support Office gcmduso@gcmd.gsfc.nasa.gov custodian http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
                1 NASA > National Aeronautics and Space Administration originator
                1 U.S. Army Corps of Engineers, Mobile District originator
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                CI_OnlineResource

                Count Component Linkage Name Description Function
                2 http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso GCMD Feedback Form Have a Comment for the GCMD? information
                2 GCMD Keyword Page 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
                1 http://maps.csc.noaa.gov/ 2005 USACE Post-Hurricane Katrina Topographic/Bathymetric Mapping CSC coastal bathymetric-topographic Lidar download
                2 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
                2 http://maps.ngdc.noaa.gov/arcgis/rest/services/web_mercator/dem_hillshades_mosaic/MapServer Digital Elevation Models: Color Shaded Relief ArcGIS Cached Map Service REST endpoint for Digital Elevation Models: Color Shaded Relief ArcGIS cached map service search
                1 http://maps.ngdc.noaa.gov/soap/web_mercator/dem_extents/MapServer/WMSServer?request=GetCapabilities%26service=WMS Digital Elevation Model Footprints Web Map Service (WMS) Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Model Footprints search
                1 http://maps.ngdc.noaa.gov/soap/web_mercator/dem_hillshades_mosaic/MapServer/WMSServer?request=GetCapabilities%26service=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
                2 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
                1 http://noaa.maps.arcgis.com/home/item.html?id=d41f39c8a6684c54b62c8f1ab731d5ad NOAA ArcGIS Online Entry NOAA ArcGIS Online listing for Digital Elevation Model Footprints ArcGIS Map Service information
                1 http://noaa.maps.arcgis.com/home/item.html?id=feb3c625dc094112bb5281c17679c769 NOAA ArcGIS Online Entry NOAA ArcGIS Online listing for Digital Elevation Models: Color Shaded Relief ArcGIS Map Service information
                1 http://srtm.usgs.gov/ Shuttle Radar Topography Mission global topography download
                1 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
                1 http://www.arcgis.com/home/item.html?id=fc9f6935b39949e4acda2070de720e88 ArcGIS Online Entry ArcGIS Online listing for Digital Elevation Model Footprints ArcGIS Map Service. information
                1 http://www.epsg-registry.org/ 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
                1 http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:datum:EPSG::5868 MHW height GML for Mean High Water height available at the epsg-registry. information
                1 http://www.gulfshoresal.gov/ Little Lagoon side scan sonar surveys Mosaic of side scan sonar surveys of Little Lagoon download
                1 http://www.nauticalcharts.noaa.gov/csdl/welcome.htm CSDL non-superceded NOS Hydrographic Survey Database Digital database of non-superceded NOS hydrographic surveys that date back to the late 19th century. download
                2 http://www.ngdc.noaa.gov/dem/squareCellGrid/download/673 Mobile, AL 1/3 arc-second MHW DEM Download page for accessing DEM, metadata record and development report. download
                1 http://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/673?gridFormat=ESRI+Arc+ASCII Mobile, Alabama Coastal Digital Elevation Model ASCII DEM Download DEM, metadata and readme file. download
                1 http://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/673?gridFormat=netCDF Mobile, Alabama Coastal Digital Elevation Model netCDF DEM Download NetCDF DEM, metadata and Readme file. download
                1 http://www.ngdc.noaa.gov/dem/squareCellGrid/getReport/673 Digital Elevation Models of Mobile, Alabama: Procedures, Data Sources and Analysis Report describing the development of the Mobile, Alabama DEMs download
                2 DEM Map Search http://www.ngdc.noaa.gov/dem/squareCellGrid/map Map Interface Graphic geo-spatial search tool for locating completed and planned DEMs. search
                2 http://www.ngdc.noaa.gov/dem/squareCellGrid/search DEM text search tool Text search tool for locating completed and planned NTHMP tsunami inundation DEMs. search
                2 http://www.ngdc.noaa.gov/mgg/inundation/vdatum/vdatum.html NOAA VDatum DEM Project Project web page. information
                1 http://www.ngs.noaa.gov/RSD/shoredata/NGS_Shoreline_Products.htm Composite Shoreline and associated data of Alabama State Composite, AL_COMP The shoreline and associated data are a representation based on an office interpretation of imagery at the time of photographs taken 19780101 to 19860301. download
                1 http://www.sam.usace.army.mil// USACE Mobile District Hydrographic Surveys Digital database of hydrographic surveys in Mobile District download
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                MD_Identifier or RS_Identifier

                Count Component Code
                1 Digital Elevation Model
                1 NOAA VDatum DEM Project
                1 urn:ogc:def:datum:EPSG::5868
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                EX_Extent

                Bounding Box Temporal Extent
                Count Component Description West East North South Start End
                1 -88.30 -87.65 31.00 30.00 1888-01-01 2009-01-01
                2 -180 180 90 -90
                1 1888-01-01 2001-01-01
                1
                1
                1
                1 1978-01-01 1986-01-01
                1
                1
                1
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                EX_GeographicBoundingBox

                Count Component West East North South
                1 -88.30 -87.65 31.00 30.00
                2 -180 180 90 -90
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                EX_TemporalExtent

                Count Component Start End
                1 1888-01-01 2009-01-01
                1 1888-01-01 2001-01-01
                6
                1 1978-01-01 1986-01-01
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                MD_Format

                Count Component Name Version specification
                1 ESRI Arc ASCII 1 ASCII text version of ESRI ArcGIS raster format
                1 netCDF 3.6.2
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                MD_Medium

                none found
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                MD_Constraints

                Count Component Use Limitation
                1 not for navigation 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.
                1 copyright statement Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
                2 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.
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                MD_ReferenceSystem

                Count Component Code Authority Title
                1 MHW urn:ogc:def:datum:EPSG::5868 Mean High Water height
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                MD_GridSpatialRepresentation

                Count Component Number of Dimensions Cell Geometry Code
                1 3 area
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                MD_Georeferenceable or MI_Georeferenceable

                none found
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                MD_Georectified or MI_Georectified

                none found
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                MD_Dimension

                Count Component Name Code Size
                1 row 10801
                1 column 7021
                1 vertical 1
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                MD_CoverageDescription or MI_CoverageDescription

                none found
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                MD_Band or MI_Band

                none found
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                MI_RangeElementDescription

                none found
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                MD_AggregateInformation

                Count Component Title Code Association Type Code
                1 Digital Elevation Models of Mobile, Alabama: Procedures, Data Sources, and Analysis crossReference
                1 NOAA VDatum DEM Project largerWorkCitation
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                LE_Source or LI_Source

                Count Component Title Date Description
                1 Baldwin County topographic lidar 2001-01-01 Source Contribution: topographic lidar ; Source Type: digital files via FTP
                1 Composite Shoreline and associated data of Alabama State Composite, AL_COMP 2001-01-01 Source Contribution: composite shoreline downloaded from web site. ; Source Type: online
                1 Little Lagoon Side Scan Sonar Surveys 2008-01-01 Source Contribution: Mosaic of side scan sonar surveys of Little Lagoon ; Source Type: digital files via FTP
                1 Mobile County topographic lidar 2002-01-01 Source Contribution: topographic lidar ; Source Type: digital files via FTP
                1 NOAA Coastal Services Center Coastal Bathymetric-Topographic Lidar 2005-01-01 Source Contribution: coastal lidar ; Source Type: online
                1 NOS Hydrographic Surveys 2009-01-01 Source Contribution: Hydrographic surveys provided to NGDC by CSDL ; Source Type: digital files via FTP
                1 Shuttle Radar Topography Mission (SRTM) 2008-01-01 Source Contribution: downloaded from web site. ; Source Type: online
                1 USACE Hydrographic Surveys 2009-01-01 Source Contribution: Hydrographic surveys for Mobile Bay and Mississippi Sound ; Source Type: online
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                LE_ProcessStep or LI_ProcessStep

                Count Component DateTime Description
                1 2009-08-28T00:00:00 All datasets obtained by NGDC were converted to common horizontal and vertical datums of NAD 83 geographic and NAVD 88, respectively, using FME and VDatum transformation tool. They were also converted to common file format, ESRI point shapefiles, for visualization and inspection.
                1 2009-09-10T00:00:00 Datasets were visually inspected with ArcGIS for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency.
                1 2009-09-24T00:00:00 Coastline datasets were merged and adjusted to fit satellite imagery.
                1 2009-10-14T00:00:00 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 1 arc-second grid outside Mobile Bay and 1/3 arc-second within the bay that interpolated to fill empty cells. Points extracted every 10 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.
                1 2009-10-23T00:00:00 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. Gridding was performed in quadrants, each with a 5% data buffer. The grids were imported in ArcGIS and seamlessly merged to create the final DEM.
                1 2009-11-17T00:00:00 The NAVD 88 DEM was quantitatively evaluated by comparing with source datasets and with elevation values extracted from NGS geodetic monuments. It was 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 DEM.
                1 2009-11-23T00:00:00 A conversion grid that models the relationship between NAVD 88 and MHW was created using data points and the VDatum transformation tool. This conversion grid was added to the NAVD 88 DEM to generate the MHW DEM.
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                MI_Operation

                Count Component Code Type Status Description
                1 NOAA VDatum DEM Project
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                MI_Platform

                Count Component Code Description
                1 Digital Elevation Model
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                MI_Instrument

                Count Component Code Type Description
                2 Light Detection and Ranging
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