Short Citation:
Office for Coastal Management, 2021: Bathymetry Digital Elevation Model, https://www.fisheries.noaa.gov/inport/item/54365.

Item Identification

Title: Bathymetry Digital Elevation Model
Short Name: Bathy_EEZ DEM
Status: Completed
Abstract:

The Digital Elevation Model (DEM) created for the ORT application is a combination of the NCEI Coastal Relief Model (CRM) and the GEBCO (2014) 1 arc-minute 2-dimensional bathymetric datasets. All components of the two models were resampled to 3 arc-seconds (as needed) and then mosaicked together to form the final output grid. The CRM integrates offshore bathymetry with land topography into a seamless representation of the coast. The CRM has a 3 arc-second resolution, except Alaska (24 arc-seconds), and spans the U.S. East and West coasts, the northern coast of the Gulf of Mexico, Puerto Rico, Hawaii, and Alaska, reaching out to and beyond the continental slope. Land and water portions of the CRM were used to construct the final DEM. The GEBCO data has a 1 arc-minute resolution and was supplemented in deeper portions of the ocean where the CRM data are not available. Where overlap occurred, CRM data were given precedence over GEBCO data. It should be noted that these are the best available data at the spatial extent needed (the entire U.S. Exclusive Economic Zone), but higher-resolution digital elevation models may be available for local or regional areas.

Purpose:

To support coastal and ocean planning and other activities pursuant to the Energy Policy Act, Coastal Zone Management Act, Magnuson-Stevens Fishery Conservation and Management Act, National Environmental Policy Act, Rivers and Harbors Act and the Submerged Lands Act.

Supplemental Information:

The native coordinate system for this layer is WGS 1984 World Mercator (ESPG: 3395). Please note: all MarineCadastre.gov data served by the NOAA Office for Coastal Management and hosted through Esri REST services are in the WGS 1984 Web Mercator Auxiliary Sphere (EPSG: 3857) projection.

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords Earth Science > Human Dimensions > Environmental Governance/Management
ISO 19115 Topic Category elevation
ISO 19115 Topic Category environment
ISO 19115 Topic Category farming
ISO 19115 Topic Category oceans
ISO 19115 Topic Category planningCadastre
None alternative energy planning
None bathymetric contours
None bathymetry
None bathymetry and elevation
None coastal energy planning
None environment
None environmental
None environmental energy planning
None farming
None marine cadastre
None marine spatial planning
None national
None ocean energy planning
None oceans
None offshore energy planning
None planningCadastre
None renewable energy planning
None United States

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords Continent > North America > United States Of America
None Atlantic
None national
None Pacific
None United States

Physical Location

City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: Map (digital)
Distribution Liability:

NOAA makes no warranties or representations whatsoever regarding the availability, quality, accuracy, content, completeness or suitability for the user's needs of such information. The services, information, and data made available on the Marine Cadastre web site are provided "as is" without warranties of any kind. These data are intended for coastal and ocean use planning. Not for navigation. https://www.marinecadastre.gov/about/disclaimer.html

Data Set Credit: ORIGINATORS: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA) National Environmental Satellite, Data, and Information Service (NESDIS), National Centers for Environmental Information (NCEI); United Nations Educational, Scientific and Cultural Organization (UNESCO), Intergovernmental Oceanographic Commission (IOC) and International Hydrographic Organization (IHO), General Bathymetric Chart of the Oceans (GEBCO); Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS), Office for Coastal Management (OCM); Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Coastal Aquaculture Siting and Sustainability (CASS); Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Biogeography (BioGeo);

Support Roles

Data Steward

CC ID: 790811
Date Effective From: 2018-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 790812
Date Effective From: 2018-06
Date Effective To:
Contact (Organization): Office for Coastal Management (OCM)
Address: 2234 South Hobson Avenue
Charleston, SC 29405-2413
URL: https://www.coast.noaa.gov/

Metadata Contact

CC ID: 790814
Date Effective From: 2018-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 790813
Date Effective From: 2018-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Publication Date

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 790816
W° Bound: -179.999989
E° Bound: 179.999989
N° Bound: 74.70875
S° Bound: 13.999263

Access Information

Security Class: Unclassified
Data Use Constraints:

NOAA makes no warranties or representations whatsoever regarding the availability, quality, accuracy, content, completeness or suitability for the user's needs of such information. The services, information, and data made available on the Marine Cadastre web site are provided "as is" without warranties of any kind. These data are intended for coastal and ocean use planning. Not for navigation. https://www.marinecadastre.gov/about/disclaimer.html

Distribution Information

Distribution 1

CC ID: 790819
Download URL: ftp://ftp.coast.noaa.gov/pub/MSP/ORT/BathymetryDEM.zip
Distributor:
Description:

Data access URL

Distribution 2

CC ID: 790818
Download URL: https://coast.noaa.gov/arcgis/rest/services/OceanReportingTool/
Distributor:
File Name: Ocean Reports Map Service
Description:

Data access URL

File Type: REST Service

URLs

URL 1

CC ID: 790809
URL: https://marinecadastre.gov/oceanreports
Name: Ocean Reporting Tool
URL Type:
Online Resource
Description:

More information and online data visualization.

Technical Environment

Description:

Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333

Data Quality

Accuracy:

The attributes in this dataset are believed to be accurate.

Horizontal Positional Accuracy:

Maximum scale of intended use is 1:80,000.

Completeness Report:

Spatial and attribute properties are believed to be complete, although attribute information has been simplified. Geometric thresholds from original data are preserved. No tests have been completed for exhaustiveness.

Conceptual Consistency:

These data are believed to be logically consistent. Geometry is topologically clean.

Lineage

Sources

NOAA's Coastal Relief Model (CRM) and GEBCO Gridded Bathymetric Data

CC ID: 790806
Contact Name: NOAA NCEI and GEBCO
Extent Type: Discrete
Extent Start Date/Time: 2018-08-01
Citation URL: https://www.gebco.net/data_and_products/gridded_bathymetry_data/
Citation URL Name: Source Online Linkage
Citation URL Description:

URL where the source data were originally accessed.

Source Contribution:

Digital Elevation Model (DEM) for U.S. Exclusive Economic Zone (EEZ)

Process Steps

Process Step 1

CC ID: 790807
Description:

(1) Bathymetry grids were downloaded from each of the data sources in NetCDF format. (2) The GEBCO and Alaska CRM grids were resample to 3 arc-seconds to match the remaining CRM regional grids. During resampling the GEBCO grid was broken up in to four equal parts (NE, NW, SE and SW) to reduce the memory load during processing. (3) CRM data that overlapped each of the four GEBCO parts were then blended on to the GEBCO data. CRM data was given priority over GEBCO data, where it was available. (4) The four sections (NE, NW, SE and SW) were then combined to create the final grid encompassing the region of interest. (5) File size: 12 GB (NetCDF received from Michael Coyne), converted to raster (40 gb), clipped to the EEZ and coastline file leaving a file size 16.4 gb in a file geodatabase for the US waters. However, these data must be converted to a GeoTiff for final delivery. (6) Projected data to WGS 1984 World Mercator (ID: 3395).

Process Date/Time: 2018-08-01 00:00:00

Catalog Details

Catalog Item ID: 54365
Metadata Record Created By: Anna Verrill
Metadata Record Created: 2018-10-25 12:06+0000
Metadata Record Last Modified By: Jesse Brass
Metadata Record Last Modified: 2019-09-28 12:24+0000
Metadata Record Published: 2018-10-26
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2019-10-27