Rachel E. Henderson Julia L. Heslin Emily A. Himmelstoss 20211119 2.0 vector digital data data release DOI:10.5066/P9FNRRN0 Woods Hole Coastal and Marine Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Hazards and Resources Program https://doi.org/10.5066/P9FNRRN0 https://www.sciencebase.gov/catalog/item/6149f75fd34e0df5fb96fbe9 Rachel E. Henderson Julia L. Heslin Emily A. Himmelstoss 2021 2.0 vector digital data data release DOI:10.5066/P9FNRRN0 Reston, VA U.S. Geological Survey 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. https://doi.org/10.5066/P9FNRRN0 https://www.sciencebase.gov/catalog/item/61255b87d34e40dd9c03f390 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. This dataset includes shorelines for ~120 years ranging from 1901 to 2018 for the coastal region of Puerto Rico, including the islands of Vieques and Culebra. Historical shorelines were compiled from a variety of sources including T-sheets, orthophotos, aerial photos, and lidar data. Version 2.0 contains all shorelines released in the first version with the addition of a lidar shoreline from 2014/2015 (Heslin and others, 2021). 1901 2018 ground condition Complete None planned -67.271490 -65.221034 18.515951 17.926863 ISO 19115 Topic Category oceans geoscientificInformation environment None Shorelines Historical Shorelines Shoreline intersects Transect Digital Shoreline Analysis System DSAS U.S. Geological Survey USGS Coastal and Marine Geology Program CMGP Woods Hole Coastal and Marine Science Center WHCMSC Puerto Rico Shoreline Change University of Puerto Rico University of Puerto Rico Graduate School of Planning Coastal Research and Planning Institute of Puerto Rico National Oceanic and Atmospheric Administration NOAA National Geodetic Survey NGS Puerto Rico Departamento de Carreteras PRDC Puerto Rico Departamento de Recursos Naturales PRDRN US Army Corps of Engineers USACE Federal Emergency Management Agency FEMA U.S. Department of Agriculture - Soil Conservation Service USDA-SCS National Ocean Service NOS Mean High Water MHW Wet Dry Line WDL High Water Line HWL USGS Thesaurus geospatial datasets coastal processes USGS Metadata Identifier USGS:6149f75fd34e0df5fb96fbe9 None Atlantic Coast United States Caribbean Puerto Rico Vieques Culebra None 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. U.S. Geological Survey Rachel E. Henderson mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA 508-548-8700 rehenderson@usgs.gov https://www.sciencebase.gov/catalog/file/get/6149f75fd34e0df5fb96fbe9?name=PR_Shorelines.jpg Map of shorelines from the 1900s to 2018 for Vieques, Culebra and the main island of Puerto Rico. JPEG Microsoft Windows 10 Enterprise; Esri ArcGIS 10.6 Emily A. Himmelstoss Amy S. Farris Rachel E. Henderson Meredith G. Kratzmann Ayhan Ergul Ouya Zhang Jessica L. Zichichi 2021 USGS Software Release version 5.1 Reston, VA U.S. Geological Survey https://doi.org/10.5066/P9VW42I0 https://code.usgs.gov/cch/dsas/ https://www.usgs.gov/centers/whcmsc/science/digital-shoreline-analysis-system-dsas Emily A. Himmelstoss Rachel E. Henderson Meredith G. Kratzmann Amy S. Farris 2021 publication Open-File Report 2021-1091 Reston, VA U.S. Geological Survey https://doi.org/10.3133/ofr20211091 https://www.usgs.gov/centers/whcmsc/science/digital-shoreline-analysis-system-dsas Amy S. Farris Kathryn M. Weber Kara S. Doran Jeffrey H. List 2018 document Open-File Report 2018-1121 Reston, VA U.S. Geological Survey https://doi.org/10.3133/ofr20181121 https://pubs.usgs.gov/of/2018/1121/ Rachel E. Henderson Julia L. Heslin Emily A. Himmelstoss Maritza Barreto-Orta 2024 Data Report 1191 Reston, VA U.S. Geological Survey https://doi.org/10.3133/dr1191 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. The data provided here are a compilation of shorelines from multiple sources, spanning approximately 120 years. The attributes are based on the requirements of the Digital Shoreline Analysis System (DSAS) software and have gone through a series of quality assurance procedures. Adjacent shoreline segments do not overlap and are not necessarily continuous. Shorelines were quality checked for accuracy. Minor offsets (less than 10 m) between adjacent segments due to georeferencing and digitizing error are taken into account in the uncertainty of the shoreline position, as reported in the horizontal accuracy section of this metadata file. Where an obvious major offset (greater than 10 m) could be determined, the shoreline in question was removed from analysis. This shoreline file is complete and contains all shoreline segments used to calculate shoreline change rates along sections of Vieques, Culebra and the main island of Puerto Rico where shoreline position data were available. Depending on the location, there may be as few as two shorelines, or up to 16 based on the availability and quality of available shoreline data. These data adequately represented the shoreline position at the time of the survey. Gaps in these data, if applicable, are a consequence of non-existing data or existing data that did not meet quality assurance standards. Shoreline data have been acquired from four different data releases. The horizontal accuracy varies with respect to the data source from which the shorelines were digitized and the time period. Please see individual, associated publications (listed in the source citations below) for calculations of horizontal positional uncertainty. Julia L. Heslin Rachel E. Henderson Emily A. Himmelstoss 2021 1 vector digital data data release DOI:10.5066/P9AZYW74 Reston, VA U.S. Geological Survey suggested citation: Heslin, J.L., Henderson, R.E., and Himmelstoss, E.A., 2021, A GIS compilation of vector shorelines for Puerto Rico from 2015 to 2018: U.S. Geological Survey data release, https://doi.org/10.5066/P9AZYW74 https://doi.org/10.5066/P9AZYW74 https://www.sciencebase.gov/catalog/item/610abe37d34ef8d70568937a online 2015 2018 ground condition PR 2015 to 2018 Published shorelines for Puerto Rico from 2015 to 2018 were compiled into a shoreline database with other shoreline data to measure shoreline change. Julia L. Heslin Rachel E. Henderson Emily A. Himmelstoss 2021 vector digital data data release DOI:10.5066/P9CLXCEG Reston, VA U.S. Geological Survey suggested citation: Heslin, J.L., Henderson, R.E., and Himmelstoss, E.A., 2021, Historical shorelines for Puerto Rico from 1901 to 1987: U.S. Geological Survey data release, https://doi.org/10.5066/P9CLXCEG https://doi.org/10.5066/P9CLXCEG https://www.sciencebase.gov/catalog/item/60cb7627d34e86b938a3a1b0 online 1901 1987 ground condition PR 1901 to 1987 Published shorelines for Puerto Rico from 1901 to 1987 were compiled into a shoreline database with other shoreline data to measure shoreline change. Loderay Bracero-Marrero Maritza Barreto-Orta Nias Hernández-Montcourt Rubén Maldonado-González Emily A. Himmelstoss Julia L. Heslin 2021 1 vector digital data data release doi:10.5066/P9SEUAHC Reston, VA U.S. Geological Survey suggested citation: Bracero-Marrero, L., Barreto-Orta, M., Hernández-Montcourt, N., Maldonado-González, R., Himmelstoss, E.A., Heslin, J.L. 2021, A GIS Compilation of Vector Shorelines and Shoreline Classification for Puerto Rico from 1970 and 2010: U.S. Geological Survey data release, https://doi.org/10.5066/P9SEUAHC https://doi.org/10.5066/P9SEUAHC https://www.sciencebase.gov/catalog/item/610ae914d34ef8d70568fba9 online 1970 2010 ground condition UPR 1970 and 2010 Published shorelines for Puerto Rico from 1970s and 2010 were compiled into a shoreline database with other shoreline data to measure shoreline change. E.R.Thieler R.W. Rodriguez Emily A. Himmelstoss 2007 1 vector digital data U.S.Geological Survey Open File Report doi:10.3133/ofr20071017 Reston, VA U.S. Geological Survey https://doi.org/10.3133/ofr20071017 https://pubs.er.usgs.gov/publication/ofr20071017 online 1936 2006 ground condition Rincon 1936 to 2006 Published shorelines for Rincon, Puerto Rico from 1936 to 2006 were compiled into a shoreline database with other shoreline data to measure shoreline change. Shoreline data published in four corresponding Puerto Rico shorelines Data releases were combined into one shoreline dataset. Shorelines files were first projected to the same metered based coordinate system (Esri's ArcToolbox v10.6) > Data Management Tools > Projections and Transformations > Project. Parameters: input projection - geographic coordinates (WGS84); output projection - NAD_1983_NSRS2007_StatePlane_Puerto_Rico_Virgin_Isls_FIPS_5200v; transformation = none) and confirmed to have the same attribute fields required for use in DSAS. They were then merged (ArcToolbox v10.6) > Data Management > General > Merge) into a single feature class (PR_shorelines1). Note the range of shoreline dates varies by location. Please refer to the corresponding shoreline intersect file for a record of the exact dates used in analysis. This process step and all subsequent process steps were performed by the same person - Rachel E. Henderson PR 2015 to 2018 PR 1901 to 1987 UPR 1970 and 2010 Rincon 1963 to 2006 2021 PR_Shorelines1 Rachel E. Henderson U.S. Geological Survey Researcher VII mailing and physical

384 Woods Hole Road

Woods Hole MA 02540 508-548-8700 rehenderson@usgs.gov VERSION 2 NOTE: During processing for the corresponding Data Report (Henderson and others, 2023), the merged shorelines file (PR_Shorelines1) was found to be missing the 2015 lidar shoreline. The missing 2015 shoreline was selected from the original source data (PR 2015 to 2018) and added to the existing shoreline dataset using basic Arc editing tools. PR 2015 to 2018 2022 PR_Shorelines The combined shorelines file was imported into a personal geodatabase in ArcCatalog v10.6 by right-clicking on the geodatabase > Import (feature class) for use in the DSAS v5 software to perform shoreline change rate calculations. 2022 FOR PUBLICATION: The shoreline feature class was exported from the personal geodatabase back to a shapefile in ArcCatalog v10.6 by right-clicking on the shoreline file > Export > To Shapefile (single). The shorelines file was then projected in Esri's 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. 2022 The metadata was modified to add the Data Report cross-reference and the distribution liability was updated to the current standards (20240513). 2024 The metadata title was modified to move the location name to the beginning of the title to account for the alphabetical listing of the individual records when ScienceBase migrates the data release to a new platform and "flattens" the data release structure (20260302). 20260302 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Vector String 6015 0.0000001 0.0000001 Decimal degrees WGS_1984 WGS_1984 6378137.0 298.257223563 PR_Shorelines.shp Shorelines for Vieques, Culebra, and the main island of Puerto Rico used in shoreline change analysis. U.S. Geological Survey FID Internal feature number used as a unique identifier of an object within a table primarily used in shapefiles. Esri Sequential unique whole numbers that are automatically generated. Shape The geometry field (shape) is automatically created and maintained by ArcGIS. It provides a definition of the feature type (point, line, polygon). Esri Feature Type UNCY Estimate of shoreline position uncertainty. Actual shoreline position is expected to be within the range of this value (plus or minus, meters). The historic shoreline uncertainty values incorporate measurement uncertainties associated with mapping methods and materials for historical shorelines, the geographic registration of shoreline position, and shoreline digitizing. U.S. Geological Survey 0.946641 12.840432 PROXY The shoreline proxy digitized or used for shoreline extraction (MHW (datum), HWL, WDL). Please see attribute PUB_link for a link to the original dataset, where additional details about methods used are described. U.S. Geological Survey HWL The high-water line (HWL)shoreline position, visually identified in aerial-photos as the line of most recent high tide swash. This line is usually found more landward of the wet/dry line and the mean-high water line. All T-sheet shorelines are high-water lines. USGS MHW The mean-high water (MHW) shoreline is a datum-based shoreline extracted using the contour or profile method. If applicable, see attribute "METHOD" for method used. USGS WDL Wet/Dry Line (WDL) This is defined as the most recent swash line and is delineated as the boundary between the wet and dry beach. All aerial photo shorelines are wet/dry lines. USGS SOURCE The source data or if known the item number of the file, T-sheet or aerial photo U.S. Geological Survey Text values of item numbers, or data type AGENCY The agency that provided the source data to create the shoreline. U.S. Geological Survey NOAA National Oceanic and Atmospheric Administration including the National Ocean Service (NOS) U.S. Geological Survey NOAA NGS National Oceanic and Atmospheric Administration, and National Geodetic Survey U.S. Geological Survey PRDC Departamento de Carreteras (Department of Transportation), San Juan, Puerto Rico U.S. Geological Survey PRDRN Departamento de Recursos Naturales (Department of Natural Resources), San Juan, Puerto Rico U.S. Geological Survey University of Puerto Rico Coastal Research and Planning Institute of Puerto Rico (CoRePI, part of the Graduate School of Planning at the University of Puerto Rico, Rio Piedras Campus) U.S. Geological Survey USACE U.S. Army Corps of Engineers U.S. Geological Survey USACE FEMA U.S. Army Corps of Engineers and the Federal Emergency Management Agency U.S. Geological Survey USDA-SCS U.S. Department of Agriculture - Soil Conservation Service, Salt Lake City, Utah U.S. Geological Survey USGS OFR 2007-1017 U.S. Geological Survey Open File Report 2007-1017: Historical Changes at Rincon, Puerto Rico, 1936-2006. U.S. Geological Survey USGS, PRDC U.S. Geological Survey, National Cartographic Information Center, Rockville, Maryland; Departamento de Carreteras (Department of Transportation), San Juan, Puerto Rico U.S. Geological Survey TYPE The type of source data used to create the shoreline. U.S. Geological Survey Aerial Photo Aerial Photo U.S. Geological Survey Lidar Digital elevation model from a lidar elevation dataset U.S. Geological Survey GPS Shoreline collected using a Global Positioning System. U.S. Geological Survey NOS TP-Sheet National Oceanic Service topographic sheet, TP series U.S. Geological Survey NOS T-Sheet National Oceanic Service topographic sheet, T series U.S. Geological Survey YEAR_ Four-digit year of shoreline U.S. Geological Survey 1901 2018 DSAS_DATE Date of shoreline position; date of survey as indicated on source material IN MM/DD/YYYY format. A default date of 07/01 was assigned to shorelines where only the year was known (month and day unknown). U.S. Geological Survey Date of the shoreline METHOD Method of shoreline extraction from lidar - contour or profile. See Farris and others (2018) for details. U.S. Geological Survey Profile Shorelines were extracted using the profile method U.S. Geological Survey Contour Shorelines were extracted using the contour method U.S. Geological Survey Other Shorelines were not extracted from lidar, see TYPE for source data. U.S. Geological Survey FLAG This field indicates a shoreline that has questionable accuracy or noticeable offset from expected shoreline position upon visual inspection. A value of 0 indicates no concern, a value of 1 indicates this shoreline should be evaluated if used in another project to make sure it meets the quality and accuracy criteria of that project. Shorelines with offsets greater than 10 meters, or which were flagged with a 2, and removed from this dataset. These shorelines will still appear in the original publications. U.S. Geological Survey 0 Shoreline appears to have no, or minimal offset. USGS 1 Shoreline appears to have an offset of less than 10 meters. USGS SHAPE_Leng Length of feature in meter units. Esri 1.90452 171798.218056 PUB_link The DOI link to the original USGS publication. U.S. Geological Survey Character string of length 150 ISL_NAME The name of the island covered by shoreline U.S. Geological Survey Vieques Shorelines for the island of Vieques. USGS Culebra Shorelines for the island and islands surrounding Culebra. USGS Puerto Rico Shorelines for the main island of Puerto Rico. USGS The entity and attribute information provided here describes the tabular data associated with the dataset. Please review the individual attribute descriptions for detailed information. U.S. Geological Survey U.S. Geological Survey - ScienceBase mailing and physical address

Federal Center, Building 810, MS 302

Denver CO 880225 USA 1-888-275-8747 sciencebase@usgs.gov The dataset contains the polyline shoreline data (PR_Shorelines.shp and other shapefile components), browse graphic, and the FGDC CSDGM metadata. 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. Shapefile ArcGIS 10.6 Esri polyline shapefile 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. no compression applied 0.56 https://doi.org/10.5066/P9FNRRN0 https://www.sciencebase.gov/catalog/file/get/6149f75fd34e0df5fb96fbe9 https://www.sciencebase.gov/catalog/item/6149f75fd34e0df5fb96fbe9 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. None These data are available in a polyline shapefile format. The user must have software to read and process the data components of a shapefile. 20260302 Rachel E. Henderson U.S. Geological Survey mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA 508-548-8700 whsc_data_contact@usgs.gov The metadata contact email address is a generic address in the event the person is no longer with USGS. Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time