Citation:
Citation_Information:
Originator: Joseph F. Terrano
Originator: Kathryn E. Smith
Originator: James G. Flocks
Publication_Date: 20160125
Title: Breton Island, Louisiana Baseline (Geographic, NAD83)
Geospatial_Data_Presentation_Form: vector digital data (Polyline)
Series_Information:
Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F7XS5SGM
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey
Online_Linkage: http://coastal.er.usgs.gov/data-release/doi-F7XS5SGM/
Description:
Abstract:
Breton Island, Louisiana Baseline (Geographic, NAD83) consists of vector line data that were input into the Digital Shoreline Analysis System (DSAS) version 4.0, which is computer software used to compute rate of change statistics. A baseline was acquired from the Barrier Island Comprehensive Monitoring Program (BICM) 2009 report (
http://lacoast.gov/reports/project/3890772~1.pdf). The baseline included in the BICM report covered the entire Louisiana coastline, so the baseline representing Breton Island had to be clipped then exported to a new shapefile named Breton_Baseline.shp. The position relative to Breton Island was determined to be the best possible baseline to use for the study. The baseline file was used to create the transect files, which are required by the DSAS program to calculate rate of change statistics.
The baseline was digitized as a single vector line parallel to, and seaward of, the Breton Island shorelines. The baseline serves as a starting point for the DSAS program to cast transects. For this analysis, transects were spaced out at a 50-meter (m) interval across the baseline.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 18690101
Ending_Date: 20140116
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -89.235148
East_Bounding_Coordinate: -89.144434
North_Bounding_Coordinate: 29.503003
South_Bounding_Coordinate: 29.450661
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:648ae963-da1f-4cd9-a493-920f5891d9c7
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Coastal
Theme_Keyword: Baseline data
Theme_Keyword: Baseline
Theme_Keyword: Map
Theme_Keyword: End Point Rate
Theme_Keyword: Linear Regression
Theme_Keyword: Shoreline Change Extent
Theme_Keyword: Weighted Linear Regression
Theme_Keyword: Net Shoreline Movement
Theme_Keyword: Rate of change
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Oceans
Theme_Keyword: Environment
Theme_Keyword: GeoscientificInformation
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: LA
Place_Keyword: Breton Island
Place_Keyword: Gulf of Mexico
Place_Keyword: Louisiana
Place_Keyword: USA
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 1869-2014
Access_Constraints: None
Use_Constraints:
The U.S. Geological Survey requests to be acknowledged as originator of the data in future products or derivative research.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey Coastal and Marine Science Center
Contact_Person: Joseph F. Terrano
Contact_Position: Researcher 1
Contact_Address:
Address_Type: mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: Florida
Postal_Code: 33701
Country: US
Contact_Voice_Telephone: (727) 502-8047
Contact_Facsimile_Telephone: (727) 502-8001
Contact_Electronic_Mail_Address: jterrano@usgs.gov
Hours_of_Service:
Monday through Friday, 9:00 a.m. to 5:00 p.m., Eastern Standard Time
Data_Set_Credit:
Funds for this report are part of project funds for the Louisiana Outer Coast Early Restoration Project, obtained by the natural resource trustees for the Deepwater Horizon Oil Spill, pursuant to the Framework for Early Restoration Addressing Injuries Resulting from the Deepwater Horizon Oil Spill executed April 20, 2011. USFWS is the project lead for the North Breton Island Barrier Island Restoration project. Acknowledgment of the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices. Sharing of new data layers developed directly from these data would also be appreciated by the U.S. Geological Survey staff. Users should be aware that comparisons with other datasets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photointerpretation, mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such.
Native_Data_Set_Environment:
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2.3552
Cross_Reference:
Citation_Information:
Originator:
Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Ergul, Ayhan
Publication_Date: 2009
Title:
The Digital Shoreline Analysis System (DSAS) version 4.0—an ArcGIS Extension for Calculating Shoreline Change
Online_Linkage: http://woodshole.er.usgs.gov/project-pages/DSAS/version4/
