Baseline for the islands of Vieques and Culebra, Puerto Rico, generated to calculate shoreline change rates using the Digital Shoreline Analysis System version 5.1

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Rachel E. Henderson
Originator: Julia L. Heslin
Originator: Emily A. Himmelstoss
Publication_Date: 20211119
Title:
Baseline for the islands of Vieques and Culebra, Puerto Rico, generated to calculate shoreline change rates using the Digital Shoreline Analysis System version 5.1
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9FNRRN0
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher:
U.S. Geological Survey, Coastal and Marine Hazards and Resources Program
Online_Linkage: https://doi.org/10.5066/P9FNRRN0
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Rachel E. Henderson
Originator: Julia L. Heslin
Originator: Emily A. Himmelstoss
Publication_Date: 2021
Title:
Puerto Rico shoreline change — A GIS compilation of shorelines, baselines, intersects, and change rates calculated using the Digital Shoreline Analysis system version 5.1
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9FNRRN0
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
suggested citation: Henderson, R.E., Heslin, J.L., and Himmelstoss, E.A., 2021, Puerto Rico shoreline change — A GIS compilation of shorelines, baselines, intersects, and change rates calculated using the Digital Shoreline Analysis system version 5.1: U.S. Geological Survey data release, https://doi.org/10.5066/P9FNRRN0.
Online_Linkage: https://doi.org/10.5066/P9FNRRN0
Online_Linkage:
Description:
Abstract:
The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from both older sources, such as aerial photographs or topographic surveys, and contemporary sources, such as lidar-point clouds and digital elevation models. These shorelines are compiled and analyzed in the USGS Digital Shoreline Analysis System (DSAS), version 5.1 software to calculate rates of change. Keeping a record of historical shoreline positions is an effective method to monitor change over time, enabling scientists to identify areas most susceptible to erosion or accretion. These data can help coastal managers understand which areas of the coast are vulnerable to change. This data release, and other associated products, represent an expansion of the USGS national-scale shoreline database to include Puerto Rico and its islands, Vieques and Culebra. The USGS, in cooperation with the Coastal Research and Planning Institute of Puerto Rico—part of the Graduate School of Planning at the University of Puerto Rico, Rio Piedras Campus—has derived and compiled a database of historical shoreline positions using a variety of methods. These historical shoreline data are then used to measure the rate of shoreline change over time. Rate calculations are computed within a geographic information system (GIS) using the DSAS version 5.1 software. Starting from a user defined baseline, measurement transects are created by DSAS that intersect the shoreline vectors. The resulting intersections provide the location and time information necessary to calculate rates of shoreline change. The overall project contains shorelines, baselines, shoreline change rates (long-term and short-term), and shoreline intersects (long-term and short-term), for Puerto Rico, and the adjacent islands of Vieques and Culebra.
Purpose:
This dataset includes a reference baseline used by the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics for the islands Vieques and Culebra, of Puerto Rico. The baseline layer serves as the starting point for orthogonally-oriented transects generated by the DSAS application. The transects intersect each shoreline and establish measurement points used to calculate shoreline change rates.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2021
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -67.272143
East_Bounding_Coordinate: -65.5886
North_Bounding_Coordinate: 18.5171
South_Bounding_Coordinate: 17.9257
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Baseline
Theme_Keyword: Shoreline
Theme_Keyword: Shoreline Change
Theme_Keyword: Digital Shoreline Analysis System
Theme_Keyword: DSAS
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: Puerto Rico Shoreline Change
Theme_Keyword: University of Puerto Rico
Theme_Keyword: University of Puerto Rico Graduate School of Planning
Theme_Keyword: Coastal Research and Planning Institute of Puerto Rico
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geospatial datasets
Theme_Keyword: coastal processes
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:6149fa46d34e0df5fb96fc24
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Atlantic Coast
Place_Keyword: United States
Place_Keyword: Caribbean
Place_Keyword: Puerto Rico
Place_Keyword: Vieques
Place_Keyword: Culebra
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. These data are not to be used for navigation.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Rachel E. Henderson
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700
Contact_Electronic_Mail_Address: rehenderson@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Map of DSAS baselines for the islands Vieques and Culebra of Puerto Rico.
Browse_Graphic_File_Type: JPEG
Native_Data_Set_Environment: Microsoft Windows 10 Enterprise; Esri ArcGIS 10.6
Cross_Reference:
Citation_Information:
Originator: Emily A. Himmelstoss
Originator: Amy S. Farris
Originator: Rachel E. Henderson
Originator: Meredith G. Kratzmann
Originator: Ayhan Ergul
Originator: Ouya Zhang
Originator: Jessica L. Zichichi
Publication_Date: 2021
Title:
Digital Shoreline Analysis System (version 5.1): U.S. Geological Survey Software
Series_Information:
Series_Name: software release
Issue_Identification: version 5.1
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: Current version of software at time of use was 5.1
Online_Linkage: https://doi.org/10.5066/P9VW42I0
Online_Linkage: https://code.usgs.gov/cch/dsas/
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: Rachel E. Henderson
Originator: Julia L. Heslin
Originator: Emily A. Himmelstoss
Originator: Maritza Barreto-Orta
Publication_Date: 2024
Title:
National Shoreline Change—Summary Statistics for Vector Shorelines from the Early 1900s to the 2010s for Puerto Rico
Series_Information:
Series_Name: Data Report
Issue_Identification: 1191
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.3133/dr1191
Other_Citation_Details:
Henderson, R.E., Heslin, J.L., Himmelstoss, E.A., and Barreto-Orta, M., 2024, National shoreline change—Summary statistics for vector shorelines from the early 1900s to the 2010s for Puerto Rico: U.S. Geological Survey Data Report 1191, 41 p., https://doi.org/10.3133/dr1191.
Cross_Reference:
Citation_Information:
Originator: Emily A. Himmelstoss
Originator: Rachel E. Henderson
Originator: Meredith G. Kratzmann
Originator: Amy S. Farris
Publication_Date: 2021
Title: Digital Shoreline Analysis System (DSAS) Version 5.1 User Guide
Geospatial_Data_Presentation_Form: publication
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2021-1091
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.3133/ofr20211091
Online_Linkage:
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The attributes in this layer are based on the requirements for use within the Digital Shoreline Analysis System (DSAS) software.
Logical_Consistency_Report:
Each polyline has a unique identification attribute (ID). This field is used by the Digital Shoreline Analysis System (DSAS) to designate the alongshore order of baselines, if more than one baseline exists.
Completeness_Report:
This baseline file is complete and contains the baseline segment(s) used to cast transects along sections of the coastal region where shoreline position data were available to calculate either a short- or long-term rate.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The baseline serves as a reference point for transects cast by the Digital Shoreline Analysis System (DSAS) software. It does not correspond to any real-world feature.
Lineage:
Process_Step:
Process_Description:
An onshore baseline was constructed roughly parallel with respect to the time series of shoreline positions using standard editing tools in Esri's ArcMap v10.6. This was done so that the transects, which are generated by the Digital Shoreline Analysis System from the baseline, would intersect roughly perpendicular to the general trend of the shorelines.
This process step and all subsequent process steps were performed by the same person - Rachel E. Henderson
Process_Date: 2021
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Rachel E. Henderson
Contact_Organization: U.S. Geological Survey
Contact_Position: Researcher VII
Contact_Address:
Address_Type: mailing and physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02540
Contact_Voice_Telephone: 508-548-8700
Contact_Electronic_Mail_Address: rehenderson@usgs.gov
Process_Step:
Process_Description:
The baseline shapefile was imported into a personal geodatabase in ArcCatalog v10.6 (right-clicking on the geodatabase and selecting Import) for use with the Digital Shoreline Analysis System (DSAS) software to perform rate calculations.
Process_Date: 2021
Process_Step:
Process_Description:
Required fields for DSAS were added using the DSAS Attribute Automator tool. These fields include ID, and DSAS_group. The baseline feature class was used as the input within the Digital Shoreline Analysis System (DSAS) software to generate transects and perform rate calculations.
Process_Date: 2021
Process_Step:
Process_Description:
The baseline feature class was exported from a personal geodatabase to a shapefile in ArcCatalog v10.6 by performing a right-mouse click on the data layer > export > to shapefile (single).
Process_Date: 2021
Process_Step:
Process_Description:
The baseline shapefile was projected in ArcToolbox v10.6 > Data Management Tools > Projections and Transformations > Project. parameters: input projection - NAD_1983_NSRS2007_StatePlane_Puerto_Rico_Virgin_Isls_FIPS_5200v; output projection - geographic coordinates (WGS84); transformation = none.
Process_Date: 2021
Process_Step:
Process_Description:
The metadata was modified to add the Data Report cross-reference and the distribution liability was updated to the current standards (20240513).
Process_Date: 2024
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: 22
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0000001
Longitude_Resolution: 0.0000001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: VC_Baseline.shp
Entity_Type_Definition:
Table containing attribute information associated with the data set for the islands Vieques and Culebra of Puerto Rico.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: FID
Attribute_Definition:
Internal feature number used as a unique identifier of an object within a table primarily used in shapefiles.
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: ID
Attribute_Definition:
Field required by the Digital Shoreline Analysis System (DSAS) software. This field is manually edited to ensure baseline segment numbers occur in sequential order alongshore. DSAS uses this value to determine the ordering sequence of transects when the baseline feature contains multiple segments.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 8
Attribute:
Attribute_Label: DSAS_group
Attribute_Definition:
This optional field is a way to aggregate baseline segments on the basis of physical variations alongshore (for example, tidal inlets, change in coastal type, or hard stabilization features). Baseline segments are assigned an ID value and statistics are repored by group in the DSAS summary text file once rates are calculated.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 3
Attribute:
Attribute_Label: SHAPE_Leng
Attribute_Definition: Length of feature in meter units.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: unlimited
Overview_Description:
Entity_and_Attribute_Overview:
The entity and attribute information provided here describes the tabular data associated with the dataset. Please review the individual attribute descriptions for detailed information.
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - GS ScienceBase
Contact_Address:
Address_Type: mailing address
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: United States
Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov
Resource_Description:
The dataset contains the polyline baselines used for the analysis of shoreline data (SHP and other shapefile components), browse graphic, and the FGDC CSDGM metadata.
Distribution_Liability:
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile
Format_Version_Number: ArcGIS 10.6
Format_Specification: Esri polyline shapefile
Format_Information_Content:
These files (.cpg, .dbf, .prj, .sbn, .sbx, .shp, and .shx) are a collection of files with a common filename prefix and must be downloaded and stored in the same directory. Together they are the components of the shapefile. Additional files of the same name included are FGDC CSDGM-compliant metadata in HTML format.
File_Decompression_Technique: no compression applied
Transfer_Size: 0.014
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link is to the USGS publication page, the second link downloads all the data on the landing page, and the third link is to the dataset landing page.
Fees: None
Technical_Prerequisites:
These data are available in a polyline shapefile format. The user must have software to read and process the data components of a shapefile.
Metadata_Reference_Information:
Metadata_Date: 20240513
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Rachel E. Henderson
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700
Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the person is no longer with USGS.
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/SB_data_release/DR_P9FNRRN0/VC_Baselines_metadata.html>
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