Metadata Identifier: gov.noaa.ngdc.mgg.dem:1521

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 Southern Louisiana 1/3 arc-second NAVD 88 Coastal Digital Elevation Model Modeling and mapping of coastal processes (e.g. tsunamis, hurricane storm-surge, and sea-level rise) requires digital representations of Earth's solid surface, referred to as digital elevation models (DEMs). Some modeling utilizes structured, square-cell DEMs, while others utilize unstructured grids that have no regular cell size or pattern. Usually, these different DEM types are developed independently, even though they are built from the same source bathymetric and topographic datasets. The National Geophysical Data Center (NGDC), an office of the National Oceanic and Atmospheric Administration (NOAA), has developed two bathymetric-topographic square-celled DEMs and one bathymetric-topographic unstructured DEM of southern Louisiana. The DEMs were developed for the Hurricane Forecast Improvement Project (HFIP), with the purpose of developing a new methodology for unstructured grid production from structured square-celled grids. The 1/3 arc-second DEM referenced to North American Vertical Datum of 1988 (NAVD 88) was carefully developed and evaluated. A NAVD 88 to mean high water (MHW) 1/3 arc-second conversion grid derived from VDatum project areas was created to model the relationship between NAVD 88 and MHW in the southern Louisiana region. NGDC combined the NAVD 88 DEM and the conversion grid to develop a 1/3 arc-second MHW DEM. The NAVD 88 DEM was generated from diverse digital datasets in the region. The DEMs were developed to be used for storm surge inundation and sea level rise modeling. The source bathymetric and topographic datasets used in the development of the NAVD 88 DEM were utilized along with the NAVD 88 DEM and derivative grids to develop the NAVD 88 unstructured DEM.
Top

SV_Identification

Count Component Title Type
1 Color Shaded Relief ArcGIS Map Service Digital Elevation Models: Color Shaded Relief ArcGIS Image Service ArcGIS Image Service
1 Footprints ArcGIS Map Service NCEI Digital Elevation Model Extents ArcGIS Feature Layer ArcGIS Feature Service
Top

CI_Citation

Count Component Title Date Citation Identifier
1 Composite Shoreline and associated data of Louisiana State Composite, LA_COMP
    2001-01-01
1 Digital Elevation Models of Southern Louisiana: Procedures, Data Sources, and Analysis
    2010-12-01
1 Digital Elevation Models: Color Shaded Relief ArcGIS Image Service
    2011-10-19
1 GCMD Data Center Keywords Global Change Master Directory (GCMD) Data Center Keywords
    2020-01-09
1 Global Change Master Directory (GCMD) Location Keywords
    1 GCMD Project Keywords Global Change Master Directory (GCMD) Project Keywords
      2020-01-09
    1 Global Change Master Directory (GCMD) Science and Services Keywords
      2 NASA/Global Change Master Directory (GCMD) Earth Science Services Keywords Global Change Master Directory (GCMD) Service Keywords
        2020-01-09
      1 Louisiana State topographic lidar
        1999-01-01
      1 NASA/GCMD Data Resolution Keywords
        1 NASA/GCMD Platform Keywords
          1 NCEI Digital Elevation Model Extents ArcGIS Feature Layer
            2022-10-24
          1 NOAA Coastal Services Center Coastal Bathymetric-Topographic Lidar
            2005-01-01
          1 NOAA Coastal Services Center Levee Topographic Lidar
            2005-01-01
          1 NOAA HFIP Gridding Project
            2008-10-31
          1 NOS Hydrographic Surveys
            2009-01-01
          1 North American Vertical Datum 1988 height
            2012-08-10
          1 Southern Louisiana 1/3 arc-second NAVD 88 Coastal Digital Elevation Model
            2012-01-28
          1 USACE Hydrographic Surveys
            2009-01-01
          2 Uncontrolled
            1 World Geodetic System 1984
              2007-08-27
            Top

            CI_Series

            Count Component Name Issue Identification Page
            1 NOAA Tsunami Inundation DEMs Southern Louisiana - NAVD88
            1 NOAA Tsunami Inundation DEMs Named by primary coastal city, state in DEM.
            Top

            CI_ResponsibleParty

            Count Component Individual Organization Position Email Role Linkage
            2 resourceProvider https://epsg.org/crs_4326/WGS-84.html
            7 Citation URL https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/southern_louisiana_13_navd88_2010.pdf
            1 "Atlas: The Louisiana Statewide GIS." LSU CADGIS Research Laboratory originator
            1 Barry W. Eakins originator
            8 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce publisher https://www.ncei.noaa.gov/products/coastal-elevation-models
            2 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce originator
            2 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce publisher
            2 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 > Coastal Survey Development Laboratory, OCS, NOS, NOAA, U.S. Department of Commerce originator
            1 DOC/NOAA/OAR/PMEL/NCTR > NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce originator
            2 EPSG Registry European Petroleum Survey Group publisher https://epsg.org/home.html
            1 Jason Caldwell originator
            1 Kelly Carignan Kelly Carignan NOAA National Centers for Environmental Information kelly.carignan@noaa.gov pointOfContact
            1 Lisa A. Taylor originator
            1 Matthew R. Love originator
            1 Matt Love Matthew R. Love NOAA National Centers for Environmental Information pointOfContact
            4 GCMD Landing Page NASA Goddard Space Flight Center, Earth Science Data and Information System custodian https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
            2 NCEI GIS Team NCEI GIS Team NOAA National Centers for Environmental Information ncei.gis@noaa.gov pointOfContact
            3 DEM Info NOAA National Centers for Environmental Information DEM Information dem.info@noaa.gov pointOfContact
            1 NCEI (publisher) NOAA National Centers for Environmental Information publisher
            1 National Geophysical Data Center NOAA National Centers for Environmental Information custodian
            1 No Title NOAA National Centers for Environmental Information originator
            1 Anna Milan NOAA National Centers for Environmental Information Metadata Specialist editor
            1 U.S. Army Corps of Engineers, New Orleans District originator
            Top

            CI_OnlineResource

            Count Component Linkage Name Description Function
            1 http://atlas.lsu.edu/lidar/ Atlas: The Louisiana Statewide GIS. Lidar data distribution of 1999 Louisiana Lidar. download
            2 http://www.google.com/url?q=http%3A%2F%2Fwww.ngdc.noaa.gov%2Fdocucomp%2Fpage%3Fxml%3DNOAA%2FNESDIS%2FNGDC%2FCollection%2Fiso%2Fxml%2FUSCoastalLidarElevationData.xml%26amp%3Bview%3DgetDataView%26amp%3Bheader%3DnoneTCM%2F&sa=D&sntz=1&usg=AFQjCNHc0sLvXk7iHVPyZC57I2r7-g4zCATCM/ 2005 USACE Post-Hurricane Katrina Topographic/Bathymetric Mapping CSC coastal bathymetric-topographic Lidar download
            1 http://www.mvn.usace.army.mil/ USACE New Orleans District Hydrographic Surveys Digital database of hydrographic surveys in New Orleans District download
            1 http://www.ngs.noaa.gov/RSD/shoredata/NGS_Shoreline_Products.htm Composite Shoreline and associated data of Louisiana State Composite, LA_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 https://epsg.org/crs_4326/WGS-84.html WGS 84 GML of World Geodetic System 1984 coordinate reference system. information
            1 https://epsg.org/crs_5703/NAVD88-height.html NAVD88 height Link to Geographic Markup Language (GML) description of reference system. information
            2 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
            1 https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer/WMSServer?request=GetCapabilities&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
            1 https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer 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
            1 https://ngdc.noaa.gov/mgg/coastal/coastal.html Integrated Models of Coastal Relief at NGDC Please see website for more information about Coastal DEMs. information
            1 https://noaa.maps.arcgis.com/home/item.html?id=0afa88a1701749dbbf76fcadca4f77f3 NOAA GeoPlatform Entry for NCEI Digital Elevation Model (DEM) Extents NOAA GeoPlatform listing for NCEI Digital Elevation Model (DEM) Extents information
            1 https://noaa.maps.arcgis.com/home/item.html?id=c876e3c96a8642ab8557646a3b4fa0ff NOAA GeoPlatform Entry for DEM Global Mosaic (Elevation Values) NOAA GeoPlatform listing for DEM Global Mosaic (Elevation Values) information
            1 https://noaa.maps.arcgis.com/home/item.html?id=d41f39c8a6684c54b62c8f1ab731d5ad 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
            1 https://noaa.maps.arcgis.com/home/item.html?id=e11ebaeb19544bb18c2afe440f063062 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
            1 https://noaa.maps.arcgis.com/home/item.html?id=e9ba2e7afb7d46cd878b34aa3bfce042 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
            1 https://noaa.maps.arcgis.com/home/item.html?id=feb3c625dc094112bb5281c17679c769 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
            1 https://services2.arcgis.com/C8EMgrsFcRFL6LrL/arcgis/rest/services/ncei_dem_extents/FeatureServer NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service REST endpoint for NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service search
            1 https://tidesandcurrents.noaa.gov/csdl.html CSDL non-superceded NOS Hydrographic Survey Database Digital database of non-superceded NOS hydrographic surveys that date back to the late 19th century. download
            4 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
            1 DEM map search https://www.ncei.noaa.gov/maps/bathymetry/ 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
            1 https://www.ncei.noaa.gov/products/coastal-elevation-models Coastal Elevation Models at NCEI information
            1 DEM text search https://www.ngdc.noaa.gov/mgg/coastal DEM text search Text search for locating completed and planned DEMs. search
            1 https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/southern_louisiana_13_navd88_2010.pdf Digital Elevation Models of Southern Louisiana: Procedures, Data Sources and Analysis Report describing the development of the Southern Louisiana DEMs download
            1 https://www.ngdc.noaa.gov/thredds/dodsC/regional/southern_louisiana_13_navd88_2010.nc.html OPeNDAP Dataset Access Form OPeNDAP Dataset Access Form download
            1 https://www.ngdc.noaa.gov/thredds/fileServer/regional/southern_louisiana_13_navd88_2010.nc Download NetCDF File Download NetCDF File download
            1 https://www.ngdc.noaa.gov/thredds/ncml/regional/southern_louisiana_13_navd88_2010.nc?catalog=https%3A%2F%2Fwww.ngdc.noaa.gov%2Fthredds%2Fcatalog%2Fregional%2Fcatalog.html&dataset=regionalDatasetScan%2Fsouthern_louisiana_13_navd88_2010.nc NetCDF Markup Language file NetCDF Markup Language file information
            1 https://www.ngdc.noaa.gov/thredds/ncss/regional/southern_louisiana_13_navd88_2010.nc/dataset.html Download a subset of the NetCDF Download a subset of the NetCDF download
            1 https://www.ngdc.noaa.gov/thredds/wcs/regional/southern_louisiana_13_navd88_2010.nc?service=WCS&version=1.0.0&request=GetCapabilities Web Coverage Service GetCapabilities Web Coverage Service GetCapabilities information
            1 https://www.ngdc.noaa.gov/thredds/wms/regional/southern_louisiana_13_navd88_2010.nc?service=WMS&version=1.3.0&request=GetCapabilities Web Map Service GetCapabilities Web Map Service GetCapabilities information
            Top

            MD_Identifier or RS_Identifier

            Count Component Code
            1 Digital Elevation Model
            1 NOAA HFIP DEM Project
            1 urn:ogc:def:crs:EPSG::4326
            1 urn:ogc:def:datum:EPSG::5703
            Top

            EX_Extent

            Bounding Box Temporal Extent
            Count Component Description West East North South Start End
            1 -91.6 -89.8 29.7 28.6 1888-01-01
            2 -180 180 90 -90
            1 1897-01-01 2001-01-01
            1
            2
            1 1978-01-01 1986-01-01
            1
            Top

            EX_GeographicBoundingBox

            Count Component West East North South
            1 -91.6 -89.8 29.7 28.6
            2 -180 180 90 -90
            Top

            EX_TemporalExtent

            Count Component Start End
            1 1888-01-01
            1 1897-01-01 2001-01-01
            4
            1 1978-01-01 1986-01-01
            Top

            MD_Format

            Count Component Name Version specification
            1 netCDF 4 Classic netCDF 4 Classic
            Top

            MD_Medium

            none found
            Top

            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 Centers for Environmental Information. Not subject to copyright protection within the United States.
            1 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.
            1 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.
            Top

            MD_ReferenceSystem

            Count Component Code Authority Title
            1 WGS84 urn:ogc:def:crs:EPSG::4326 World Geodetic System 1984
            1 NAVD88 urn:ogc:def:datum:EPSG::5703 North American Vertical Datum 1988 height
            Top

            MD_GridSpatialRepresentation

            Count Component Number of Dimensions Cell Geometry Code
            1 3 area
            Top

            MD_Georeferenceable or MI_Georeferenceable

            none found
            Top

            MD_Georectified or MI_Georectified

            none found
            Top

            MD_Dimension

            Count Component Name Code Size
            1 row 30241
            1 column 11881
            1 vertical 1
            Top

            MD_CoverageDescription or MI_CoverageDescription

            none found
            Top

            MD_Band or MI_Band

            none found
            Top

            MI_RangeElementDescription

            none found
            Top

            MD_AggregateInformation

            Count Component Title Code Association Type Code
            1 Digital Elevation Models of Southern Louisiana: Procedures, Data Sources, and Analysis crossReference
            1 NOAA HFIP Gridding Project crossReference
            Top

            LE_Source or LI_Source

            Count Component Title Date Description
            1 Composite Shoreline and associated data of Louisiana State Composite, LA_COMP 2001-01-01 Source Contribution: composite shoreline downloaded from web site. ; Source Type: online
            1 Louisiana State topographic lidar 1999-01-01 Source Contribution: topographic lidar ; Source Type: online
            1 NOAA Coastal Services Center Coastal Bathymetric-Topographic Lidar 2005-01-01 Source Contribution: coastal lidar ; Source Type: online
            1 NOAA Coastal Services Center Levee Topographic Lidar 2005-01-01 Source Contribution: Louisiana levee 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 USACE Hydrographic Surveys 2009-01-01 Source Contribution: Hydrographic surveys for New Orleans District ; Source Type: online
            Top

            LE_ProcessStep or LI_ProcessStep

            Count Component DateTime Description
            1 2010-08-28T00:00:00 All datasets obtained by NGDC were converted to common horizontal and vertical datums of NAD 83 geographic and NAVD 88, respectively, using Proj4 and VDatum transformation tool. They were also converted to common file format, ESRI point shapefiles, for visualization and inspection.
            1 2010-09-01T00:00:00 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 2010-09-24T00:00:00 Coastline datasets were merged and adjusted to fit satellite imagery.
            1 2010-09-30T00:00:00 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 1 arc-second grid 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 netCDF grid was clipped to the coastline to remove values over land.
            1 2010-10-20T00:00:00 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 with a 5% data buffer.
            1 2010-10-24T00:00:00 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 2015-04-22T00:00:00 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.
            Top

            MI_Operation

            Count Component Code Type Status Description
            1 NOAA HFIP DEM Project
            Top

            MI_Platform

            Count Component Code Description
            1 Digital Elevation Model
            Top

            MI_Instrument

            Count Component Code Type Description
            2 Light Detection and Ranging
            Top