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 coast of Puerto Rico's main island generated to calculate shoreline change rates using the Digital Shoreline Analysis System version 5.1 (ver. 2.0, March 2023) Edition: 2.0 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: https://www.sciencebase.gov/catalog/item/6149f9fad34e0df5fb96fc1a 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 (ver. 2.0, March 2023) Edition: 2.0 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 (ver. 2.0, March 2023): U.S. Geological Survey data release, https://doi.org/10.5066/P9FNRRN0. Online_Linkage: https://doi.org/10.5066/P9FNRRN0 Online_Linkage: https://www.sciencebase.gov/catalog/item/61255b87d34e40dd9c03f390 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 main island 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. Supplemental_Information: Version 2.0 includes a baseline updated with new baseline ID values, to reduce the post-processing need to compile data for publication. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2023 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:6149f9fad34e0df5fb96fc1a Place: Place_Keyword_Thesaurus: None Place_Keyword: Atlantic Coast Place_Keyword: United States Place_Keyword: Caribbean Place_Keyword: Puerto Rico 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@contractor.usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/6149f9fad34e0df5fb96fc1a?name=PR_Baselines.jpg Browse_Graphic_File_Description: Map of DSAS baselines for the main island 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: USGS 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: https://www.usgs.gov/centers/whcmsc/science/digital-shoreline-analysis-system-dsas 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: https://www.usgs.gov/centers/whcmsc/science/digital-shoreline-analysis-system-dsas 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@contractor.usgs.gov Process_Step: Process_Description: VERSION 2 NOTE: update of this data release to include a missing shoreline from the shorelines data product (PR_Shorelines) provided the opportunity to recalibrate the baseline ID values, to better coincide with the regional outputs needed for the corresponding Data Report. Baseline ID values now correlate to regions North (101-110), East (111-113), South (114-119), West (120-124) and Northwest(125-126). Baseline Group_ID values also correlate to regions North (1), East (2), South (3), West (4) and Northwest(5). Process_Date: 2022 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: 2022 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 along with the shorelines file (PR_Shorelines.shp) as the input within the Digital Shoreline Analysis System (DSAS) software to generate transects and perform rate calculations. Process_Date: 2022 Process_Step: Process_Description: FOR PUBLICATION: 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). The baseline shapefile was then 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: 2022 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: 26 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: PR_Baseline.shp Entity_Type_Definition: Table containing attribute information associated with the data set for the main island 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: 101 Range_Domain_Maximum: 126 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 reported 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: 5 Attribute: Attribute_Label: DSAS_search Attribute_Definition: The search distance field is an optional field that represents the (user defined) distance, in meters, that DSAS will use to search for shorelines, extending out from either side of the baseline. The distance value can be unique for each baseline segment depending on the organization of shorelines with respect to the baseline. Values populated in this field will override the "Maximum Search Distance From Baseline" value entered in Cast Transects settings. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 150 Range_Domain_Maximum: 450 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 (PR_Baseline.shp and other shapefile components) used for the analysis of shoreline data (SHP and other shapefile components), browse graphic, and the FGDC CSDGM metadata. Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), and have been processed successfully on a computer system at the 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. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 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 XML format. File_Decompression_Technique: no compression applied Transfer_Size: 0.014 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9FNRRN0 Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/6149f9fad34e0df5fb96fc1a Network_Resource_Name: https://www.sciencebase.gov/catalog/item/6149f9fad34e0df5fb96fc1a 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: 20230303 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: Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time