2013 Vectorized Shoreline for Breton Island, Louisiana (Geographic, NAD83)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Joseph F. Terrano
Originator: Kathryn E. Smith
Originator: James G. Flocks
Publication_Date: 20160125
Title:
2013 Vectorized Shoreline for Breton Island, Louisiana (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: https://doi.org/10.5066/F7XS5SGM
Description:
Abstract:
Shorelines were derived from a U.S. Geological Survey topographic lidar survey that was conducted on July 12-14, 2013 over Dauphin Island, Alabama and Chandeleur, Stake, Grand Gosier and Breton Islands, Louisiana and published in USGS Data Series 838. Photo Science, Inc., was contracted by the USGS to collect and process these data. Lidar data were acquired around portions of both the Alabama and Louisiana barrier islands; however, this dataset only contains shorelines created from data acquired from Breton Island, Louisiana. Shorelines were vectorized in ArcMap 10.2.2 so they could be used for area and shoreline change analysis, using the Digital Shoreline Analysis System (DSAS) version 4.0.
Purpose:
Shoreline data are considered a crucial element in performing change analysis for erosion and accretion studies and for tracking shoreline movement over time. Lidar data were acquired to document the short and long-term changes of several barrier island systems in Louisiana. Digitized shorelines from the Lidar data provide an accurate and measurable change in shape, area, and shoreline movement over short and long-term periods.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20130712
Ending_Date: 20130714
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -89.181425
East_Bounding_Coordinate: -89.170450
North_Bounding_Coordinate: 29.497212
South_Bounding_Coordinate: 29.475592
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:6d4b041d-5823-4002-a206-b9962147639e
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Lidar
Theme_Keyword: Coastal
Theme_Keyword: Shoreline data
Theme_Keyword: Shoreline
Theme_Keyword: Shoreline map
Theme_Keyword: Vectorization
Theme_Keyword: Mean High Water
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Oceans
Theme_Keyword: Elevation
Theme_Keyword: Environment
Theme_Keyword: Boundaries
Theme_Keyword: GeoscientificInformation
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords
Theme_Keyword: mapping
Theme_Keyword: shore
Theme_Keyword: shoreline erosion
Theme_Keyword: shoreline accretion
Theme_Keyword: barrier island migration
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: coastal processes
Theme_Keyword: erosion
Theme_Keyword: shoreline accretion
Theme_Keyword: barrier island migration
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: 2013
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:
Martinez, L., O’Brien, S., Bethel, M., Penland, S., and Kulp, M.
Publication_Date: 2009
Title:
Louisiana Barrier Island Comprehensive Monitoring Program (BICM)   Volume 2: Shoreline Changes and Barrier Island Land Loss 1800’s‐2005
Online_Linkage: http://lacoast.gov/reports/project/3890772~1.pdf
Cross_Reference:
Citation_Information:
Originator: Guy, K.K., and Plant, N.G.
Publication_Date: 2014
Title:
Topographic Lidar Survey of Dauphin Island, Alabama and Chandeleur, Stake, Grand Gosier and Breton Islands, Louisiana, July 12–14, 2013
Online_Linkage: https://pubs.er.usgs.gov/publication/ds838
Cross_Reference:
Citation_Information:
Originator: Morton, R.A., Miller, T.L., and Moore, L.J.
Publication_Date: 2008
Title:
National Assessment of Shoreline Change: Part 1, Historical Shoreline Changes and Associated Coastal Land Loss Along the U.S. Gulf of Mexico
Online_Linkage: https://pubs.usgs.gov/of/2004/1043/
Data_Quality_Information:
Logical_Consistency_Report:
Vectorized shorelines were checked to ensure they were one continuous line. Dangles (or extra line segments) were removed, as necessary. The shorelines were split into foreshore and backshore, based on a visual assessment.
Completeness_Report:
Shorelines that did not represent the main shoreline of Breton Island, such as the Chandeleur Islands or the Mississippi River Delta were removed. To ensure accuracy, edited shorelines were compared to those shown on Breton Island, LA from other analysis years, as a method for maintaining consistency between which islands were removed from each of the shoreline datasets.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2014
Title:
Topographic lidar survey of Dauphin Island, Alabama and Chandeleur, Stake, Grand Gosier and Breton Islands, Louisiana, July 12-14, 2013
Geospatial_Data_Presentation_Form: remote-sensing data
Online_Linkage: https://pubs.er.usgs.gov/publication/ds838
Source_Scale_Denominator: 1500
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20130712
Ending_Date: 20130714
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: USGS DS 838
Source_Contribution:
Lidar-derived elevations were used to identify mean high water (MHW) location for shoreline delineation.
Process_Step:
Process_Description:
A topographic lidar survey was conducted on July 12-14, 2013 over Dauphin Island, Alabama and Chandeleur, Stake, Grand Gosier and Breton Islands, Louisiana. The data were collected at a nominal pulse space of 1 meter (m) and processed to identify bare earth elevations. Bare earth Digital Elevation Models (DEMs) were generated based on these data. The bare earth DEMs are 32-bit floating point ERDAS Imagine (IMG) files with a horizontal spatial resolution of 1-m by 1-m. They are projected to Universal Transverse Mercator (UTM), Zone 16, North American Datum (NAD) 1983, meters (m) coordinates. To vectorize the shorelines, the DEMs were added to ArcMap 10.2.2. The symbology of the map was changed to classify the image into two elevation classes at 0.23 meters, delineating the location of the average mean high water (MHW) shoreline for the Breton Island area. The MHW elevation was determined by tide gauge measurements and is reported in Morton and others (2004). The two-class raster was then examined against aerial imagery and it was determined that this elevation provided a good approximation of the MHW shoreline via visual inspection of the wet/dry sand line. After the value of 0.23 was chosen, the ArcMap tool "Contour List" was used to create a shoreline. To remove any sharp edges from the shoreline the ArcMap tool "Smooth Line" was used. Using ArcMap’s “Edit” tool, any extra lines, overlapping lines, and remaining sharp angle lines were removed. If needed, some areas were hand digitized to ensure they matched the Lidar data, which was classified to 0.23 m. After the shoreline was edited, it was checked for any remaining errors using ArcMap 10.2.2 "Create Topology" tool. Five rules were added to ensure that the shorelines were matching up correctly. The five rules are that the shorelines must not have dangles, must not intersect (line), must not overlap (line), must not self intersect (line), and must not self-overlap (line). Next, using the “Validate Topology” tool, errors were flagged in the shoreline shapefile and fixed accordingly to ensure that the shoreline was continuous and free of errors. Shorelines were then split at the northern most point and the southern most point to get a foreshore and backshore shoreline. Added "UNCERTAINT" (double), "DATE_" (Text/10), "Shoreline_" (Text/20), and "Year" (Text/10) fields.
Process_Date: 20150601
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Joseph Terrano
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
Process_Step:
Process_Description:
Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.
Process_Date: 20170313
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Alan O. Allwardt
Contact_Position: Contractor -- Information Specialist
Contact_Address:
Address_Type: mailing and physical address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Contact_Voice_Telephone: 831-460-7551
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: aallwardt@usgs.gov
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20201013
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 14
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 16
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.6096
Ordinate_Resolution: 0.6096
Planar_Distance_Units: meter
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Breton_Island_2013_Shoreline
Entity_Type_Definition: Shapefile
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features
Attribute:
Attribute_Label: OBJECTID
Attribute_Definition: Automatically assigned values used to identify features.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4
Range_Domain_Maximum: 114
Attribute:
Attribute_Label: Shape_Leng
Attribute_Definition: Length of feature in internal units.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3.57629
Range_Domain_Maximum: 4842.83392
Attribute:
Attribute_Label: UNCERTAINT
Attribute_Definition:
A value representing the error associated with the imagery type that is used in the Digital Shoreline Analysis system statistical computations.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1.9
Enumerated_Domain_Value_Definition: Uncertainty of the shoreline position (in meters).
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: DATE_
Attribute_Definition:
Date imagery was collected for Breton Island using the mm/dd/yyyy format. Imagery dates for data not representing Breton Island were excluded.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Date using the mm/dd/yyyy format
Attribute:
Attribute_Label: Shoreline_
Attribute_Definition:
Shoreline classification used to separate foreshore and backshore shorelines.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain:
Shorelines classified as "Fore" for foreshore and "Back" for backshore shorelines.
Attribute:
Attribute_Label: Year
Attribute_Definition: 4-digit year in which the imagery was collected.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Single year in the YYYY format
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: James Flocks
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) 502-8012
Contact_Facsimile_Telephone: (727) 502-8001
Hours_of_Service:
Monday through Friday, 9:00 a.m. to 5:00 p.m., Eastern Standard Time
Contact_Instructions: All of this report is available online.
Resource_Description: Breton_Island_2013_Shoreline.shp
Distribution_Liability:
This digital publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ArcGIS shapefile
Format_Information_Content:
Shapefile containing 2013 vectorized shoreline for Breton Island, LA
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Fees: None
Metadata_Reference_Information:
Metadata_Date: 20201013
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Joseph Terrano
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
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:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests to be acknowledged as originator of the data in future products or derivative research.

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