Metadata: Identification_Information: Citation: Citation_Information: Originator: Joseph F. Terrano Originator: Kathryn E. Smith Originator: James G. Flocks Publication_Date: 20160125 Title: Breton Island Transects with Shoreline Change Rates (Pre-1950s) (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 Transects with Shoreline Change Rates (Pre-1950s) (Geographic, NAD83) consists of vector transect data that were derived from the Digital Shoreline Analysis System (DSAS) version 4.0. Rates from the DSAS statistical output table were joined to the transects to provide a visual representation of the shoreline change rates on a transect-by-transect basis. Purpose: Transect data are considered a crucial element in performing change analysis for erosion and accretion studies and for tracking shoreline movement over time. DSAS uses transects as a method to extract shoreline change rates from shorelines at a given interval across a baseline. For this long term analysis, transects were spaced out at a 50-m interval across the baseline and shoreline change rates were calculated for the historical long-term (Pre-1950s). Transect and rate attribute tables were joined to allow the rate values to be visualized on a map. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 18690101 Ending_Date: 19500501 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -89.229979 East_Bounding_Coordinate: -89.145810 North_Bounding_Coordinate: 29.508040 South_Bounding_Coordinate: 29.452066 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:2a4fe327-789d-44fa-a0b1-62036cef4068 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Coastal Theme_Keyword: Transect data Theme_Keyword: transect Theme_Keyword: transect map Theme_Keyword: Linear Regression Theme_Keyword: End Point Rate Theme_Keyword: Rate of change Theme_Keyword: Net Shoreline Movement Theme_Keyword: Weighted Linear Regression Theme_Keyword: Shoreline Change Extent 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: Pre-1950s 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/ Data_Quality_Information: Logical_Consistency_Report: Transects were generated as a product of the DSAS program at a 50-m interval. These transects were checked to ensure an even distribution and coverage of the shoreline datasets. Completeness_Report: Transects with errors or no rate values for all statistic fields were removed to ensure that only valid rates of change were used in the analysis. Errors included "null" and "0" values, which represent a transect that crossed only 0 or 1 shoreline and skewed the results. When joining the rates to the transect attribute table, the WLR and LRR fields could not contain a "null" value so null values are represented as a "-9999". These values should be checked and removed if using in any further analysis. The remaining transects with rates were used to aid in the final shoreline change results. Lineage: Source_Information: Source_Citation: 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 Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: http://woodshole.er.usgs.gov/project-pages/DSAS/version4/ Source_Scale_Denominator: 1500 Type_of_Source_Media: Online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 18690101 Ending_Date: 19500501 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Breton_DSAS_Transects_Pre_1950s Source_Contribution: DSAS was used to generate the transects at a 50-m interval. Process_Step: Process_Description: A single transect file was created and five copies were created, one for each of the analysis time periods of: (1) 1869-2014 (long-term), (2) pre-1950s (before excavation of the MRGO), (3) post-1950s (post MRGO), (4) post-Hurricane Katrina (2005-2014) (short-term), and (5) pre/post Hurricane Katrina (2004-2005)(acute weather event). Transects were generated at a 50-meter interval perpendicular to the baseline and consisted of 211 transects. Transects were removed in areas where less than two shorelines were present. Rates of change were calculated for: (1) net shoreline movement (NSM); (2) shoreline change envelope (SCE); (3) end point rate (EPR); (4) linear regression rate (LRR), and (5) weighted linear regression rate (WLR) and saved to a table, in the ArcGIS personal geodatabase format. The rate table generated by DSAS was then joined to the respective transect file so the rate values could be displayed on a map. In joining the rates to the transect table, the WLR and LRR fields were not able to use a "null" value so null values are represented as a "-99999". These values should be checked and removed if using in any further analysis. 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: 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: 192 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 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -87.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000.0 False_Northing: 0.0 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_Transects_with_Rates_Pre_1950s Entity_Type_Definition: Transects with rate of change statistics for Breton Island from the Pre-1950s analysis. 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: TransOrder Attribute_Definition: Value automatically assigned, by DSAS, to each transect in a sequential order and used for identification purposes. Values are missing if the line was removed due to errors in earlier processing. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6 Range_Domain_Maximum: 197 Attribute: Attribute_Label: StartX Attribute_Definition: Starting X coordinate of each transect, in meters. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 284366.98 Range_Domain_Maximum: 291891.61 Attribute: Attribute_Label: StartY Attribute_Definition: Starting Y coordinate of each transect, in meters. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3260140.25 Range_Domain_Maximum: 3264899.01 Attribute: Attribute_Label: EndX Attribute_Definition: End X coordinate of each transect, in meters. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 283839.61 Range_Domain_Maximum: 287096.28 Attribute: Attribute_Label: EndY Attribute_Definition: End Y coordinate of each transect, in meters. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3265112.36 Range_Domain_Maximum: 3266195.26 Attribute: Attribute_Label: Azimuth Attribute_Definition: Azimuth of the transect measured in degrees clockwise of north. Attribute_Definition_Source: DSAS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 283.94 Range_Domain_Maximum: 354.52 Attribute: Attribute_Label: EPR Attribute_Definition: End Point Rate Attribute_Definition_Source: DSAS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -14.74 Range_Domain_Maximum: 1.95 Attribute: Attribute_Label: SCE Attribute_Definition: Shoreline Change Envelope Attribute_Definition_Source: DSAS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 20.53 Range_Domain_Maximum: 1198.98 Attribute: Attribute_Label: NSM Attribute_Definition: Net Shoreline Movement Attribute_Definition_Source: DSAS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1198.98 Range_Domain_Maximum: 158.69 Attribute: Attribute_Label: WLR Attribute_Definition: Weighted Linear Regression. Attributes with a "-99999" value represent a null value. Attribute_Definition_Source: DSAS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -99999 Range_Domain_Maximum: -99999 Attribute: Attribute_Label: LRR Attribute_Definition: Linear Regression Rate. Attributes with a "-99999" value represent a null value. Attribute_Definition_Source: DSAS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -99999 Range_Domain_Maximum: 1.65 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: 4999.999967 Range_Domain_Maximum: 5000.000003 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_Transects_with_Rates_Pre_1950s.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 transects with historical long-term (Pre-1950s) shoreline change statistics for Breton Island, LA. Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://coastal.er.usgs.gov/data-release/doi-F7XS5SGM/data/shapefiles/transects.zip 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.