National Geophysical Data Center Coastal Relief Model

Metadata:

• Identification_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Distribution_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

National Oceanographic and Atmospheric Administration, National Geophysical Data Center

Publication_Date: 2000

Title: National Geophysical Data Center Coastal Relief Model

Geospatial_Data_Presentation_Form: raster digital data

Other_Citation_Details:

A fundamental database for GIS/LIS applications is gridded elevations, upon which digital maps of rivers, infrastructure and other geographic information can be overlain. While digital elevation models (DEMs) of the coastal states are available through the US Geological Survey (USGS), until now there has been no comparable product for offshore elevations aside from custom grids generated by individual investigators. Our team at NGDC is taking advantage of the recently restructured NOS Hydrographic Database, and the maturation of software for constructing, managing, accessing and viewing gridded hydrographic data, to assemble a gridded database of coastal zone elevations that complements and enhances the USGS 3-arc-second DEMs. This Coastal Relief Gridded database provides the first comprehensive view of the US Coastal Zone; one that extends from the coastal state boundaries to as far offshore as the NOS hydrographic data will support a continuous view of the seafloor. In many cases, this seaward limit reaches out to, and in places even beyond the continental slope. Data sources include the US National Ocean Service and the US Geological Survey. Volumes 3 through 5 also include bathymetric contours from the International Bathymetric Chart of the Caribbean Sea and the Gulf of Mexico project.

 

Larger_Work_Citation:

Citation_Information:

Originator: Schwab, William C.

Originator: Denny, Jane F.

Originator: Foster, David S.

Originator: Lotto, Linda L.

Originator: Allison, Mead A.

Originator: Uchupi, Elazar

Originator: Swift, B. Ann

Originator: Danforth, William W.

Originator: Thieler, Robert E.

Originator: Butman, Bradford

Publication_Date: 2002

Title:

High-Resolution Quaternary seismic stratigraphy of the New York Bight Continental Shelf

Geospatial_Data_Presentation_Form:

Maps, remote sensing imagery, tabular digital data, and raster and vector digital data

Series_Information:

Series_Name: Open-File Report

Issue_Identification: OFR02-152

Publication_Information:

Publication_Place: Woods Hole, MA

Publisher: U.S. Geological Survey

 

Description:

Abstract:

This data set includes sea floor topography of the area offshore of New York and New Jersey from the National Oceanic and Atmospheric Administration Coastal Relief Model. The data set is derived from historical measurements of sea floor depth and is gridded at 90 m spatial resolution.

Purpose:

In 1995, the U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers (USACE), began a program to generate reconnaissance maps of the sea floor offshore of the New York - New Jersey metropolitan area and within the southern Long Island nearshoe area. Our methods include high-resolution sidescan sonar and subbottom profiling techniques, along with surface grab and vibracore sampling to verify the geophysical interpretations. The goal of the investigation is to provide a regional synthesis of the sea-floor environment, to determine regional-scale availability of sand as a resource for beach nourishment programs, and to investigate the role that inner-shelf morphology and geologic framework have in the evolution of the coastal region within the New York Bight Apex and southern Long Island. Maps derived from interpretation of the subbottom profiles show information on the geometry and distribution of the Quaternary sediments and the underlying coastal-plain unconformity. This seismic stratigraphy yields a regional framework on which explanations of present (and past) sediment movement, dispersal, and erosion processes are based.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1996

Ending_Date: 2000

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: none planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -74.5666614

East_Bounding_Coordinate: -70.998985

North_Bounding_Coordinate: 41.873091

South_Bounding_Coordinate: 39.001819

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: Geographic Information Systems

Theme_Keyword: GIS

Theme_Keyword: Woods Hole Field Center

Theme_Keyword: WHFC

Theme_Keyword: United States Geological Survey

Theme_Keyword: USGS

Theme_Keyword: Sea Floor Mapping

Theme_Keyword: Topographic data

Theme_Keyword: Sea floor topography

Theme_Keyword: Bathymetry

Theme_Keyword: Sea floor geology

Theme_Keyword: Surficial geology

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: New York

Place_Keyword: New York Harbor

Place_Keyword: NY

Place_Keyword: New Jersey

Place_Keyword: NJ

Place_Keyword: New York Bight

Place_Keyword: Mid-Atlantic Bight

Place_Keyword: Exclusive Economic Zone

Place_Keyword: EEZ

Place_Keyword: Atlantic Ocean

Place_Keyword: Ocean

Access_Constraints:

None

Use_Constraints:

Not to be used for navigational purpsoses.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane F. Denny

Contact_Organization: US Geological Survey

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Road

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543

Country: USA

Contact_Voice_Telephone: 508-457-2311

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: jdenny@usgs.gov

Native_Data_Set_Environment:

Positional_Accuracy Horizontal_Positional_Accuracy Horizontal_Positional_Accuracy_Report Vertical_Positional_Accuracy Vertical_Positional_Accuracy_Report

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:

National Oceanographic and Atmospheric Administration, National Geophysical Data Center

Publication_Date: 1999

Title: Coastline Extractor

Geospatial_Data_Presentation_Form: raster digital data

Series_Information:

Series_Name: NGDC National Coastal Relief Model

Issue_Identification: Volumes 1 and 2

Publication_Information:

Publication_Place: Boulder, CO

Publisher: NESDIS National Geophysical Data Center

Other_Citation_Details:

The first elevation grids constructed for the database formed volumes one and two of the NGDC Coastal Relief Model DVD-ROM series. These volumes collectively covered an area of the US coastal zone that extends from 48° N to 31° N latitude, encompassing the land areas and surveyed offshore areas of the coastal states from Maine to Georgia. In October, 2001, volumes three, four, and five were released covering the coast of Florida and the US Gulf of Mexico coastal zone (see illustration at upper left). The gridded database will eventually encompass the coastal zone of the continental US, Alaska, Hawaii and Puerto Rico. However, the US coastal zone is being gridded in sections due to the immense volume of data involved in this project. The grids of the eastern US coastal zone (excluding Florida) are the first in a series of gridded data sets that are being compiled for the US coastal zone. The data sets are being systematically assembled proceeding clockwise around the continental US. The next datasets to be released will be of the western US coastal zone, encompassing California, Oregon and Washington, of the Great Lakes and their bordering states, and then of Alaska and the Aleutian Islands. Data sets of Hawaii and Puerto Rico will be included amongst these as well.

Online_Linkage: <http://www.ngdc.noaa.gov/mgg/coastal/coastal.html>

Type_of_Source_Media: DVD_ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 19960000

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: NOAA

Source_Contribution:

The source contributed the database from which we extracted data for the section of coastline we were interested in.

Process_Step:

Process_Description:

The data for these data layers were extracted from the Geodas DVDROM Volumes 1 and 2. These DVD's are produced by the National Oceanic and Atmospheric Administration, National Geophysical Data Center in Boulder, CO. Spatially referenced depth values were exported into an ASCII raster file, which was then imported into Arcview Spatial Analyst to create gridded bathymetry with a cell size of 90 by 90 meters. The grid was then contoured at 20 meter intervals from 20 to 200 meters.

The bathymetric and topographic data were then converted from a grid to image files. The purpose of this process step was to enable ArcView users with no access to the ESRI Spatial Analyst extension the ability to view these data.

Process_Date: 2000

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Raster

Row_Count: 4178

Column_Count: 4248

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 18

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -075.000000

Latitude_of_Projection_Origin: +00.000000

False_Easting: 500000

False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 200

Ordinate_Resolution: 200

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: WGS84

Ellipsoid_Name: WGS84

Semi-major_Axis: 6378137.0000000

Denominator_of_Flattening_Ratio: 298.26

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988

Altitude_Resolution: 1

Altitude_Distance_Units: Meters

Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Depth_System_Definition:

Depth_Datum_Name: Mean sea level

Depth_Resolution: 0.1

Depth_Distance_Units: Meters

Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane F. Denny

Contact_Organization: US Geological Survey

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Road

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543

Country: USA

Contact_Voice_Telephone: 508-457-2311

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: jdenny@usgs.gov

Resource_Description: ngdc

Distribution_Liability:

Altough this data set and its lineage have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or it's related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related items. Users must assume responsibility for the proper use of this data. This data should not be used at resolutions for which it is not intended. This data has no been reviewed for conformity with US Geological Survey editorial standards, or the North American Strigraphic code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the US Government.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey Information Services

Contact_Address:

Address_Type: mailing address

Address: Box 25286 Denver Federal Center

City: Denver

State_or_Province: Colorado

Postal_Code: 80225-0046

Country: USA

Contact_Voice_Telephone: 303.202.4700

Contact_Facsimile_Telephone: 303.202.4188

Hours_of_Service: 8 a.m. to 5 p.m. Mountain Time

Distribution_Liability:

These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.

Metadata_Reference_Information:

Metadata_Date: 20020119

Metadata_Review_Date: 2002

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane F. Denny

Contact_Organization: US Geological Survey

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Road

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543

Country: USA

Contact_Voice_Telephone: 508-457-2311

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: jdenny@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None