Impacts of Proposed Sediment Borrow Pits on the Neashore Wave Climate and Longshore Transport Rate along Breton Island, LA: G1_grid

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: P. Soupy Dalyander
Originator: Rangley C. Mickey
Originator: Joseph W. Long
Originator: James G. Flocks
Publication_Date: 2015
Title:
Impacts of Proposed Sediment Borrow Pits on the Neashore Wave Climate and Longshore Transport Rate along Breton Island, LA: G1_grid
Geospatial_Data_Presentation_Form: Vector Digital Data Set (Polygon)
Publication_Information:
Publication_Place:
St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: <http://pubs.usgs.gov/of/2015/1055/datafiles.html>
Larger_Work_Citation:
Citation_Information:
Originator: P. Soupy Dalyander
Originator: Rangley C. Mickey
Originator: Joseph W. Long
Originator: James G. Flocks
Publication_Date: 2015
Title:
Impacts of Proposed Sediment Borrow Pits on the Neashore Wave Climate and Longshore Transport Rate along Breton Island, LA
Edition: 1.0
Geospatial_Data_Presentation_Form: Multimedia presentation
Series_Information:
Series_Name: Open-File Report (OFR)
Issue_Identification: 2015-1055
Publication_Information:
Publication_Place: St. Petersburg Coastal and Marine Science Center
Publisher: U.S. Geological Survey
Online_Linkage: <http://pubs.usgs.gov/of/2015/1055/index.html>
Description:
Abstract:
As part of a plan to preserve Breton Island, the southernmost extent of the Chandeleur Islands and part of the Breton Island National Wildlife Refuge, the National Fish and Wildlife Service (FWS) plans to nourish the island with sand supplied from offshore sand resources. The planned sand extraction sites are offshore of the island to the east and south in 5-10 m of water. Because borrow pits are perturbations to shallow-water bathymetry, they can impact the wave field in a variety of ways, and may result in alterations in sediment transport and new erosional or accretional patterns along the beach. For the present study, a scenario-based numerical modeling strategy was used to assess the impacts of the proposed borrow pits on the nearshore wave field. Impacts were assessed over a range of wave conditions, and were gauged by changes in significant wave height and wave direction inshore of the borrow sites.
Purpose:
This GIS layer contains the model grid used for calculation of waves in the wave climate scenarios used to investigate hydrodynamic variability in the northern Gulf of Mexico. This data layer is intended to illustrate the nested model grid G1 over which calculations were performed. The analysis results, which are contained in other data layers, are only presented at those locations where model outputs exist (e.g., "wet" grid cells, as opposed to "dry" grid cells in the model representing land).
Supplemental_Information:
This data layer is a subset of USGS Open-File Report 2015-1055, Impacts of Proposed Sediment Borrow Pits on the Neashore Wave Climate and Longshore Transport Rate along Breton Island, LA. It presents the model grid G1 over which hydrodynamic scenario calculations were conducted.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20140710
Currentness_Reference: ground condition
Status:
Progress: complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -90.0520316261
East_Bounding_Coordinate: -84.9689800936
North_Bounding_Coordinate: 30.5997898873
South_Bounding_Coordinate: 29.1581003773
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: St. Petersburg Coastal and Marine Science Center
Theme_Keyword: SPCMSC
Theme_Keyword: waves
Theme_Keyword: borrow pits
Theme:
Theme_Keyword_Thesaurus: ISO 9115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: oceans and estuaries
Theme_Keyword: oceans and coastal
Theme_Keyword: geoscientific Information
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Content
Place_Keyword: Gulf of Mexico
Place_Keyword: Louisiana
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: Breton Island
Access_Constraints: None.
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, USGS Southeast Area
Contact_Person: P. Soupy Dalyander
Contact_Position: Research Oceanographer
Contact_Address:
Address_Type: Mailing
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: US
Contact_Voice_Telephone: 727-502-8124
Contact_Facsimile_Telephone: 727-502-8001
Contact_Electronic_Mail_Address: sdalyander@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name:
<http://pubs.usgs.gov/of/2015/1055/datadirectory/G1_bathymetry.jpg>
Browse_Graphic_File_Description:
Graphic showing the numerical model domain over which analysis was conducted.
Browse_Graphic_File_Type: JPEG
Data_Set_Credit: U.S. Geological Survey
Native_Data_Set_Environment:
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.2.1.3497
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
This data layer contains the grid over which hydrodynamic wave scenario results were calculated. Within the SWAN model, these coordinates are in latitude and longitude for this data layer.
Logical_Consistency_Report:
No duplicate features are present. All polygons are closed, and all lines intersect where intended. No undershoots (lines falling short of the line they should intersect to form the polygon) or overshoots (lines crossing over the line they should intersect to form the polygon) are present.
Completeness_Report:
This layer contains the complete model grid (including wet and dry, e.g., land, grid cells) used for calculation of wave scenario hydrodynamic results.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
This layer contains the model grid over which hydrodynamic wave scenario results were calculated. Within the SWAN model, these coordinates are in UTM, which have been converted into latitude and longitude for this data layer.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Vertical datum is in North American Vertical Datum of 1988 (NAVD88) with an estimated resolution of 0.01 m.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: NOAA National Geophysical Data Center (NGDC)
Publication_Date: 2012
Title: Northern Gulf Coast, LA/MS/FL/AL 1 arc-second NAVD 88 DEM
Publication_Information:
Publication_Place: Boulder, CO
Publisher: NOAA National Geophysical Data Center (NGDC)
Online_Linkage: <http://www.ngdc.noaa.gov/dem/squareCellGrid/download/720>
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2012
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: NGDC NGC
Source_Contribution:
Bathymetric data contained in the Northern Gulf Coast DEM were interpolated to grid cell locations to generate model bathymetry for grid G1. Love, M.R., C.J. Amante, B.W. Eakins, and L.A. Taylor, 2012. Digital Elevations Models of the Northern Gulf Coast: Procedures, Data Sources and Analysis, NOAA Technical Memorandum NESDIS NGDC-59, U.S. Dept. of Commerce, Boulder, CO, 43 pp.
Process_Step:
Process_Description:
Mathworks MATLAB (v2014) was used to interpolate Northern Gulf Coast DEM data onto the model grid.
Source_Used_Citation_Abbreviation: NGDC NGC
Process_Date: 2014
Source_Produced_Citation_Abbreviation: G1BATHY
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: P. Soupy Dalyander
Contact_Organization: U.S. Geological Survey
Contact_Position: Oceanographer
Contact_Address:
Address_Type: mailing and physical address
Address: 600 4th Street S
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: (727)-502-8124
Contact_Facsimile_Telephone: (727)-502-8001
Contact_Electronic_Mail_Address: sdalyander@usgs.gov
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: Gulf of Mexico
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-Polygon
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0197890822
Longitude_Resolution: 0.0226960591
Geographic_Coordinate_Units: Decimal seconds
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.01 m
Altitude_Distance_Units: meters
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates.
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: G1_grid
Entity_Type_Definition: Model grid used in hydrodynamic calculations of wave scenarios.
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: ModelGrid
Attribute_Definition:
Model grid domain (in this case, the model grid used for wave scenario calculations).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Keyword indicating which model grid this layer contains.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, USGS Southeast Area
Contact_Person: P. Soupy Dalyander
Contact_Position: Research Oceanographer
Contact_Address:
Address_Type: mailing address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: US
Contact_Voice_Telephone: 727-502-8124
Contact_Facsimile_Telephone: 727-502-8001
Contact_Electronic_Mail_Address: sdalyander@usgs.gov
Distribution_Liability: Distributor assumes no liability for misuse of data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: SHP
Format_Version_Number: 10.2.1
Format_Specification: ESRI shapefile
Format_Information_Content:
WinZip archive file containing the shapefile components. The WinZip file also includes FGDC compliant metadata.
File_Decompression_Technique: WinZip 12.0 archive
Transfer_Size: 4.8 MB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://pubs.usgs.gov/of/2015/1055/datafiles.html>
Fees: None.
Technical_Prerequisites:
These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.
Metadata_Reference_Information:
Metadata_Date: 20140710
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: P. Soupy Dalyander
Contact_Organization: U.S. Geological Survey, USGS Southeast Area
Contact_Position: Research Oceanographer
Contact_Address:
Address_Type: mailing address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: US
Contact_Voice_Telephone: 727-502-8124
Contact_Facsimile_Telephone: 727-502-8001
Contact_Electronic_Mail_Address: sdalyander@usgs.gov
Metadata_Standard_Name: FGDC Content Standard 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
Generated by mp version 2.9.12 on Tue Mar 24 15:07:11 2015