Tampa Bay Topographic/Bathymetric Digital Elevation Model

Dataset Identification:

Resource Abstract:
In this joint demonstration project for the Tampa Bay region, NOAA's National Ocean Service (NOS) and the U.S. Geological Survey (USGS) have merged NOAA bathymetric and USGS topographic data sets into a hybrid digital elevation model (DEM) with all data initially referenced to the ellipsoid, but transformable to any of 28 orthometric, 3-D, or tidal datums.
Citation
Title Tampa Bay Topographic/Bathymetric Digital Elevation Model
publication  Date   2001-04-05
presentationForm  mapDigital
cited responsible party - publisher
organisation Name  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
cited responsible party - publisher
organisation Name  U.S. Geological Survey, EROS Data Center; and NOAA's Ocean Service, Office of Coast Survey (OCS)
Contact information
Address
, Sioux Falls, SD
cited responsible party - originator
organisation Name  United States Geological Survey, Earth Resources Observation Systems (EROS) Data Center
cited responsible party - originator
organisation Name  National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS), Coast Survey Development Laboratory (CSDL)
Topic Category:  oceans,elevation
Keywords:
Theme keywords (theme):
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 > Terrain Elevation > Topographical Relief Maps
Earth Science > Oceans > Coastal Processes > Coastal Elevation
thesaurus name >
Title Global Change Master Directory (GCMD) Science and Services Keywords
Theme keywords (theme):
Models/Analyses > DEM > Digital Elevation Model
thesaurus name >
Title NASA/GCMD Platform Keywords
project Keywords
ICSU-WDS > International Council for Science - World Data System
thesaurus name >
Title Global Change Master Directory (GCMD) Project Keywords
revision  Date   2016-12-12
publication  Date   1995-04-24
Edition 8.4.1
cited responsible party - publisher
organisation Name  NASA
position Name GCMD User Support Office
Contact information
Address
electronic Mail Address gcmduso@gcmd.gsfc.nasa.gov
Linkage for online resource
name GCMD Feedback Form
URL: http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
link function information
Description Have a Comment for the GCMD?
cited responsible party -
organisation Name  
Contact information
Linkage for online resource
name GCMD's Science Keywords and Associated Directory Keywords
URL: http://gcmd.nasa.gov/learn/keyword_list.html
link function information
Description This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions.
Theme keywords (theme):
< 1 meter
thesaurus name >
Title NASA/GCMD Data Resolution Keywords
Theme keywords (theme):
bathymetry/topography
thesaurus name >
Title NOS Data Explorer Topic Category
Location keywords:
United States
Tampa Bay
Florida
thesaurus name >
Title none
dataCenter Keywords
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
thesaurus name >
Title Global Change Master Directory (GCMD) Data Center Keywords
revision  Date   2016-12-01
publication  Date   1995-04-24
Edition 8.4.1
cited responsible party - publisher
organisation Name  NASA
position Name GCMD User Support Office
Contact information
Address
electronic Mail Address gcmduso@gcmd.gsfc.nasa.gov
Linkage for online resource
name GCMD Feedback Form
URL: http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
link function information
Description Have a Comment for the GCMD?
cited responsible party -
organisation Name  
Contact information
Linkage for online resource
name GCMD's Science Keywords and Associated Directory Keywords
URL: http://gcmd.nasa.gov/learn/keyword_list.html
link function information
Description This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions.
Theme keywords (theme):
Bathymetry
thesaurus name >
Title Activity > Observation
publication  Date   2017-08-23
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 23 18:52:44 UTC 2017
Theme keywords (theme):
NOAA
National Ocean Service
USGS
DOC/NOAA/NESDIS/NGDC
thesaurus name >
Title Organization > GOVERNMENT AGENCIES-U.S. FEDERAL AGENCIES
publication  Date   2017-08-23
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 23 18:52:44 UTC 2017
Theme keywords (theme):
Digital Elevation Model
thesaurus name >
Title Realm > Earth Surface
publication  Date   2017-08-23
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 23 18:52:44 UTC 2017
Theme keywords (theme):
Bathymetry
thesaurus name >
Title Property > Measure
publication  Date   2017-08-23
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 23 18:52:44 UTC 2017
Theme keywords (theme):
Earth Science
Geophysics
thesaurus name >
Title Science Domain > Earth Science
publication  Date   2017-08-23
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 23 18:52:44 UTC 2017
Theme keywords (theme):
Ocean
thesaurus name >
Title Feature > Marine Feature
publication  Date   2017-08-23
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 23 18:52:44 UTC 2017
Theme keywords (theme):
Tidal
thesaurus name >
Title Realm > Coastal Region
publication  Date   2017-08-23
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 23 18:52:44 UTC 2017
Theme keywords (theme):
Data Set
thesaurus name >
Title Resource Type > Data Set
publication  Date   2017-08-23
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 23 18:52:44 UTC 2017
Theme keywords (theme):
National Centers for Environmental Information
U.S. Department of Commerce
United States Geological Survey
Earth Resources Observation Systems
Data Center
thesaurus name >
Title Virtual International Authority File (VIAF) Corporate Names
publication  Date   2017-08-23
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 23 18:52:44 UTC 2017
Theme keywords (theme):
Elevation
Bathymetry
thesaurus name >
Title Feature > Physiographic Feature
publication  Date   2017-08-23
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 23 18:52:44 UTC 2017
purpose:
This dataset is intended for geospatial applications that require seamless land elevation and water depth information in coastal environments.
Browse image (thumbnail):
thumbnail file name:  ...
file type: png32
Resource language:  eng; USA
Resource progress code:  completed
Resource Maintenance Information
maintenance or update frequency:  asNeeded
Constraints on resource usage:
Constraints
Use limitation statement:
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.
Constraints on resource usage:
Legal Constraints
use constraint:  otherRestrictions
Other constraints
Use Constraints: Because the source bathymetric and topographic data vary in density and accuracy, users need to be made aware of the spatially varying quality of the merged model. In some areas, the spacing of the soundings would support gridding at a much higher resolution than 1-arc second, where in other areas the values of the 1-arc-second grid were interpolated based only on distant points. Likewise, the vertical accuracy of the model varies spatially, due mainly to the wide variety of dates and data collection technologies used for source data acquisition. A merged raster model at a uniform grid cell spacing was produced because most users require such a product for their computer mapping systems.
Constraints on resource usage:
Legal Constraints
Access Constraints  otherRestrictions
Other constraints
Access Constraints: None
Spatial representation type code:  grid
Processing environment:  Native Dataset Environment: ESRI ArcInfo 8.0
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude  -82.875000
eastBoundLongitude  -82.375000
northBoundLatitude  28.125000
southBoundLatitude  27.375000
Temporal Extent
1945-01-01 1999-01-01
point of contact - pointOfContact
individual Name Dean Gesch
organisation Name  United States Geological Survey (USGS), Earth Resources Observation Systems (EROS) Data Center
Contact information
Telephone
Voice 605-594-6055
Address
EROS Data Center, 47914 252nd Street, Sioux Falls, SD, 57198
electronic Mail Address gesch@usgs.gov
hoursOfService Monday thru Friday, 0800 to 1600, central time
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Grid spatial representation

number of grid dimensions: 3
Grid axis property:
Grid Dimension
Dimension Name:  row
Dimension Size 2700
resolution
Distance 0.000278 decimalDegrees
Grid Dimension
Dimension Name:  column
Dimension Size 1800
resolution
Distance 0.000278 decimalDegrees
Grid Dimension
Dimension Name:  vertical
Dimension Size 1
cell geometry type:  area
transformation parameter availability: 
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reference system 1

Reference System Identifier
Identifier string: urn:ogc:def:crs:EPSG::4269
authority
Title North American Datum 1983
alternateTitle  NAD83
revision  Date   2007-01-19
cited responsible party - resourceProvider
organisation Name  
Contact information
Linkage for online resource
name NAD83
URL: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269
link function information
Description Link to Geographic Markup Language (GML) description of reference system.
cited responsible party - publisher
organisation Name  European Petroleum Survey Group
Contact information
Linkage for online resource
name European Petroleum Survey Group Geodetic Parameter Registry
URL: http://www.epsg-registry.org/
link function search
Description Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
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reference system 2

Reference System Identifier
Identifier string: urn:ogc:def:datum:EPSG::5103
authority
Title North American Vertical Datum 1988
alternateTitle  NAVD88
revision  Date   2012-08-10
cited responsible party - resourceProvider
organisation Name  
Contact information
Linkage for online resource
name NAVD88
URL: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:datum:EPSG::5103
link function information
Description Link to Geographic Markup Language (GML) description of reference system.
cited responsible party - publisher
organisation Name  European Petroleum Survey Group
Contact information
Linkage for online resource
name European Petroleum Survey Group Geodetic Parameter Registry
URL: http://www.epsg-registry.org/
link function search
Description Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
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Scope of quality information
scope level  repository
Level Description
other component described  NOAA National Centers for Environmental Information
Resource lineage description

Scope of quality information
scope level  dataset
Resource lineage description
source
source description  Source Contribution: Bathymetric data was used to develop a seamless bathymetric/topographic DEM for the Tampa Bay region. Source Type: CD-ROM
representative resolution scale:
Scale denominator: 
source citation
Title GEODAS Hydrographic Survey Database
publication  Date   2000-01-01
cited responsible party - publisher
organisation Name  National Environmental Satellite, Data, and Information Service (NESDIS), National Geophysical Data Center (NGDC)
Contact information
Address
, Boulder, CO
cited responsible party - originator
organisation Name  National Oceanic and Atmospheric Administration (NOAA), National Environmental Satellite, Data, and Information Service (NESDIS), National Geophysical Data center (NGDC)
Resource extent
Temporal Extent
1945-01-01 1996-01-01
source
source description  Source Contribution: Topographic data was used to develop a seamless bathymetric/topographic DEM for the Tampa Bay region. Source Type: CD-ROM
representative resolution scale:
Scale denominator: 
source citation
Title USGS National Elevation Dataset NED
publication  Date   1999-01-01
presentationForm  mapDigital
cited responsible party - publisher
organisation Name  U.S. Geological Survey
Contact information
Address
, Sioux Falls, SD
cited responsible party - originator
organisation Name  United States Geological Survey
Resource extent
Temporal Extent
1999-01-01
Completeness Commission
evaluation Method Description  Standard tools and datasets (VERTCON and GEOID99) from the National Geodetic Survey were used to transform the elevation data into the common ellipsoid vertical reference frame. The NED shoreline (interface of zero/non-zero elevations) was used to make the final selection of bathymetry and topography points for merging. All land elevations within 600 meters of the shoreline were converted from raster format to XYZ point data. All bathymetry points coinciding with areas of zero elevation in NED were selected. Because of the age of some of the hydrographic surveys, some of the soundings were located on areas that had been filled and are now represented as land in the DEM. These points were withheld from further processing.
ConceptualConsistency
measure Description  The selected topography points within the shoreline buffer zone and the bathymetry points were gridded to produce a raster surface model with a 1-arc-second grid spacing to match the resolution of the USGS National Elevation Dataset (NED). The points were input to an implementation of the ANUDEM thin plate spline interpolation algorithm, which is optimized for generation of topographic surfaces. The bathymetry points could have been gridded independently of the topographic data, but the shoreline zone land elevations were included in the interpolation to ensure a better match of the bathymetric and topographic surfaces for the subsequent mosaicing step. To avoid introduction of any interpolation edge effects into the merged elevation model, the output grid from the interpolation was clipped to include only land elevations within 300 meters of the shoreline. The final processing step involved the mosaicing of the bathymetry grid and the NED elevation grid. The values in the 300-meter overlap area were blended by weighted averaging, where the weights for each grid are determined on a cell-by-cell basis according to the cell's proximity to the edges of the overlap area.

Resource distribution information

Distributor
distributor contact - pointOfContact
organisation Name  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
position Name DEM Information
Contact information
Address
electronic Mail Address dem.info@noaa.gov
Standard ordering process
fees None
Format
Format name binary float
Format version 1
specification > binary float
file Decompression Technique  WINZIP
Digital Transfer Options
transfer Size 12600000
Linkage for online resource
name Tampa Bay, FL 1 arc-second NAVD88 DEM
URL: https://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/717?gridFormat=ESRI+Arc+ASCII
link function download
Description DEM and metadata file for the Tampa Bay DEM.
Linkage for online resource
name Tampa Bay, FL 1 arc-second NAVD88 DEM
URL: https://www.ngdc.noaa.gov/dem/squareCellGrid/download/722
link function download
Description Download page for accessing DEM and metadata record.
Linkage for online resource
name Tampa Bay, FL 1 arc-second NAVD88 DEM
URL: https://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/722?gridFormat=binary+float
link function download
Description Download page for accessing DEM and metadata record.

Metadata data stamp:  2017-03-29
Resource Maintenance Information
date of next update:  2013-08-10
maintenance or update frequency:  annually
notes: 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 2012-08-08 version of the FGDC RSE to ISO 19115-2 transform.
notes: Translated from FGDC 2012-08-10T14:49:26.579-06:00
notes: Last Metadata Review Date: 2013-08-10
notes: This record was automatically modified on 2015-09-03 to include references to NCEI where applicable.
Metadata contact - pointOfContact
organisation Name  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
position Name DEM Information
Contact information
Address
electronic Mail Address dem.info@noaa.gov
Metadata scope code  dataset
Metadata language  eng; USA
Metadata character set encoding:   utf8
Metadata standard for this record:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
standard version:  ISO 19115-2:2009(E)
Metadata record identifier:  gov.noaa.ngdc.mgg.dem:722

Metadata record format is ISO19139-2 XML (MI_Metadata)