NGDC_CRM - NGDC Coastal Relief Model image of the project area offshore of Grand Strand, South Carolina (GeoTIFF)

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 2007

Title:

NGDC_CRM - NGDC Coastal Relief Model image of the project area offshore of Grand Strand, South Carolina (GeoTIFF)

Edition: 1.0

Geospatial_Data_Presentation_Form: remote-sensing image

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2005-1346

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, MA

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: <http://pubs.usgs.gov/of/2005/1346/arcgis/ngdc/ngdc_crm.zip>

Larger_Work_Citation:

Citation_Information:

Originator: Baldwin, W.E.

Originator: Denny, J.F.

Originator: Schwab, W.C.

Originator: Gayes, P.T.

Originator: Morton, R.A.

Originator: Driscoll, N.W.

Publication_Date: 2007

Title:

Geologic Framework Studies of South Carolina's Long Bay from Little River Inlet to Winyah Bay, 1999-2003; geospatial data release

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2005-1346

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, MA

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: <http://pubs.usgs.gov/of/2005/1346/>

Description:

Abstract:

In 1999, the USGS, in partnership with the South Carolina Sea Grant Consortium, began a study to investigate processes affecting shoreline change along the northern coast of South Carolina, focusing on the Grand Strand region. Previous work along the U.S. Atlantic coast shows that the structure and composition of older geologic strata located seaward of the coast heavily influences the coastal behavior of areas with limited sediment supply, such as the Grand Strand. By defining this geologic framework and identifying the transport pathways and sinks of sediment, geoscientists are developing conceptual models of the present-day physical processes shaping the South Carolina coast. The primary objectives of this research effort are: 1) to provide a regional synthesis of the shallow geologic framework underlying the coastal upland, shoreface and inner continental shelf, and define its role in coastal evolution and modern beach behavior; 2) to identify and model the physical processes affecting coastal ocean circulation and sediment transport, and to define their role in shaping the modern shoreline; and 3) to identify sediment sources and transport pathways; leading to construction of a regional sediment budget.

Purpose:

The GeoTIFF image of the coastal region of Grand Strand, South Carolin was generated from the Coastal Relief Model to provide a basemap of the project area for the Geographic Information System (GIS) database.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2001

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -80.176050

East_Bounding_Coordinate: -76.737177

North_Bounding_Coordinate: 35.290700

South_Bounding_Coordinate: 32.707831

Keywords:

Theme:

Theme_Keyword_Thesaurus: General

Theme_Keyword: USGS

Theme_Keyword: U.S. Geological Survey

Theme_Keyword: Coastal Relief Model

Theme_Keyword: CRM

Theme_Keyword: bathymetry

Theme_Keyword: Geographic Information Systems

Theme_Keyword: CMGP

Theme_Keyword: Coastal and Marine Geology Program

Theme_Keyword: GIS

Theme_Keyword: Woods Hole Science Center

Theme_Keyword: WHSC

Theme_Keyword: National Oceanic and Atmospheric Administration

Theme_Keyword: NOAA

Theme_Keyword: GeoTIFF image

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: oceans

Theme_Keyword: oceans and coastal

Theme_Keyword: oceans and estuaries

Theme_Keyword: imageryBaseMapsEarthCover

Place:

Place_Keyword_Thesaurus: General

Place_Keyword: South Carolina

Place_Keyword: Grand Strand

Place_Keyword: North Myrtle Beach

Place_Keyword: Myrtle Beach

Place_Keyword: Surfside

Place_Keyword: Garden City

Place_Keyword: Pawleys Island

Place_Keyword: Waites Island

Place_Keyword: Southeast United States

Place_Keyword: United States

Place_Keyword: Atlantic Ocean

Access_Constraints: None

Use_Constraints:

Public domain data from the U.S. government is freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of this dataset.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane Denny

Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1598

Country: USA

Contact_Voice_Telephone: (508) 548-8700 x2311

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: jdenny@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name: <http://pubs.usgs.gov/of/2005/1346/images/ngdc_crm.jpg>

Browse_Graphic_File_Description: JPG image of NGDC coastal relief model

Browse_Graphic_File_Type: JPEG

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

There are no attributes associated with a GeoTIFF image. Pixels (cells) convey only RGB values.

Logical_Consistency_Report:

Land elevations within the gridded dataset come from the United States Geological Survey/ National Image Mapping Agency (USGS/NIMA) 1:250,000 or 1 degree DEMs of the states. A description of the USGS/NIMA DEMs and how they were derived can be accessed on the World Wide Web at <http://edcwww.cr.usgs.gov/glis/hyper/guide/1_dgr_dem>. Our focus, however, is on the bathymetric soundings that are used in constructing the offshore regions of the grids.
Soundings for each volume of the Coastal Relief model series are compiled from hydrographic surveys conducted by the National Ocean Service (NOS) and from various academic institutions. The surveys were carried out using a variety of sounding methods including SeaBeam 16-beam, 12-kHz swath mapping system (6000- >3000m operating water depths), General Instruments 17-beam, 36-kHz Hydrochart II swath mapping system (5-150m operating water depths), single-beam echosounder (e.g., 3.5 kHz narrow 2 degree beam), and lead-line sounding method. These latter surveys date as far back as the late 1800's.
A wide range of navigation methods are also associated with the surveys. Visual navigation is based on three-point sextant fixes, theodolite intersections, and celestial fixes. Electronic navigation involves short to long range positioning systems that run the gamut from Loran-C (0.25 - 5 nm accuracy) to differential GPS (1 m accuracy).
Despite the varying sounding and navigation techniques upon which they are based, all of the NOS soundings used in constructing the Coastal Relief Model meet rigorous standards for accuracy. The same standards are employed by the International Hydrographic Office and have remained relatively consistent since the 1800's. The vertical accuracy of the soundings is 0.3 m in 0 - 20 m of water, 1.0 m in 20 - 100 m of water, and 1% of the water depth in 100 m of water. The horizontal accuracy of the soundings is within a radius of 1.5 mm of the sounding location at the scale at which the soundings are recorded. NOS surveys are plotted at map scales that range from 1/10,000 for harbors and channels to 1/50,000 for open ocean surveys, with 1/20,000 being the most commonly used scale. The horizontal accuracy of the soundings is generally 30 m, but it can vary from as fine as 15 m in ports and estuaries to as coarse as 75 m in the offshore areas. Differential GPS has improved this level of accuracy considerably for the most recent survey data.
While the NOS soundings collected since 1965 have been recorded digitally, those collected prior to this time were recorded manually and then used to make hand-drawn bathymetric maps. Approximately 1,550 of these hand-drawn bathymetric maps have been digitized and assimilated into the NOS Hydrographic Database and, subsequently, were used in constructing the many volumes of the gridded dataset.

Completeness_Report:

NGDC compiled available bathymetry; spurious data were eliminated.

Positional_Accuracy:

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: National Oceanic and Atmospheric Administration (NOAA)

Publication_Date: 2001

Title: Coastal Relief Model, U.S. Southeast Atlantic, Vol. 2, 2001

Geospatial_Data_Presentation_Form: raster digital data

Publication_Information:

Publication_Place: Boulder, Colorado

Publisher:

National Oceanic and Atmospheric Administration (NOAA), National Geophysical Data Center (NGDC)

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

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2001

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: NGDC Coastal Relief Model, U.S. Southeast Atlantic, vol.2, 2001

Source_Contribution:

Vol. 2 was used to create the onshore and offshore image of Grand Strand, South Carolina region for the project area

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 2974

Column_Count: 3312

Vertical_Count: 1

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 17

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -81.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 93.872650

Ordinate_Resolution: 93.857165

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984

Ellipsoid_Name: WGS_1984

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

The Coastal Relief Model TIFF image of the South Carolina is a color-coded image.

Entity_and_Attribute_Detail_Citation: NGDC

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane Denny

Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1543

Country: USA

Contact_Voice_Telephone: (508) 548-8700 x2311

Contact_Facsimile_Telephone: (580)457-2310

Contact_Electronic_Mail_Address: jdenny@usgs.gov

Resource_Description: Downloadable Data

Distribution_Liability:

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.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: TIFF

Format_Specification: GeoTIFF

Format_Information_Content:

Image contains the onshore and offshore DEM of the project area off shore of Grand Strand, South Carolina

File_Decompression_Technique: none

Format_Version_Number: unknown

Transfer_Size: 30 MB

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://pubs.usgs.gov/of/2005/1346/arcgis/ngdc/ngdc_crm.zip>

Access_Instructions: Data can be downloaded via the World Wide Web (WWW)

Offline_Option:

Offline_Media: DVD-ROM

Recording_Capacity:

Recording_Density: 4.75

Recording_Density_Units: Gbytes

Recording_Format: UDF

Fees: none

Technical_Prerequisites:

This image is available as a GeoTIFF image with an accompanying world file. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GeoTIFF image.

Metadata_Reference_Information:

Metadata_Date: 20070123

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane Denny

Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1598

Country: USA

Contact_Voice_Telephone: (508) 548-8700 x2311

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_Time_Convention: local time

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile