Rachel E. Henderson
Julia L. Heslin
Emily A. Himmelstoss
20211119
Shoreline intersects for the islands of Vieques and Culebra, Puerto Rico, calculated using the Digital Shoreline Analysis System version 5.1
1.0
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/6149fa5dd34e0df5fb96fc29
Rachel E. Henderson
Julia L. Heslin
Emily A. Himmelstoss
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
1.0
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: 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.
The datasets described by this metadata file include intersects of shoreline positions for the islands Vieques and Culebra, of Puerto Rico, used for both long-term (~120 years) and short-term (~40 years) shoreline change calculations. Rate calculations were computed within a GIS using DSAS version 5.1, an ArcGIS extension developed by the U.S. Geological Survey. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points which provide location and time information used to calculate rates of change. Long-term and short-term rates of shoreline change were calculated using a linear regression rate based on available shoreline data.
1936
2018
ground condition
None planned
-67.272143
-65.5886
18.5171
17.9257
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
USGS Thesaurus
geospatial datasets
coastal processes
USGS Metadata Identifier
USGS:6149fa5dd34e0df5fb96fc29
None
Atlantic Coast
United States
Caribbean
Puerto Rico
Vieques
Culebra
None
These data were automatically generated using the DSAS v5.1 software application. 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@contractor.usgs.gov
https://www.sciencebase.gov/catalog/file/get/6149fa5dd34e0df5fb96fc29?name=VC_Intersects.jpg
Map of shoreline intersect positions (long-term) for Vieques and Culebra of Puerto Rico from the 1900s to 2018.
JPEG
Microsoft Windows 10 Enterprise; Esri ArcGIS 10.6
Rachel E. Henderson
Julia L. Heslin
Emily A. Himmelstoss
Maritza Barreto-Orta
2021
Puerto Rico shoreline change from the 1900s to 2018 — Summary statistics for Vieques, Culebra, and the main island of Puerto Rico.
data report
XXXX
Reston, VA
U.S. Geological Survey
Data Report associated with Data Release DOI:10.5066/P9FNRRN0. Issue number as yet unknown.
Emily A. Himmelstoss
Amy S. Farris
Rachel E. Henderson
Meredith G. Kratzmann
Ayhan Ergul
Ouya Zhang
Jessica L. Zichichi
2018
Digital Shoreline Analysis System (version 5.1): U.S. Geological Survey Software
software release
version 5
Reston, VA
U.S. Geological Survey
Current version of software at time of use was 5.1
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
Digital Shoreline Analysis System (DSAS) version 5.1 user guide
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
Julia L. Heslin
Rachel E. Henderson
Emily A. Himmelstoss
2021
A GIS Compilation of Vector Shorelines for Puerto Rico from 2015 to 2018
1
vector digital data
data release
DOI:10.5066/P9AZYW74
Reston, VA
U.S. Geological Survey
https://doi.org/10.5066/P9AZYW74
https://www.sciencebase.gov/catalog/item/610abe37d34ef8d70568937a
U.S. Geological Survey
2021
Historical Shorelines for Puerto Rico from 1901 to 1987
vector digital data
data release
DOI:10.5066/P9CLXCEG
Reston, VA
U.S. Geological Survey
https://doi.org/10.5066/P9CLXCEG
https://www.sciencebase.gov/catalog/item/60cb7627d34e86b938a3a1b0
Loderay Bracero-Marrero
Maritza Barreto-Orta
Nias Hernández-Montcourt
Rubén Maldonado-González
Emily A. Himmelstoss
Julia L. Heslin
2021
A GIS Compilation of Vector Shorelines and Shoreline Classification for Puerto Rico from 1970 and 2010
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
E.R.Thieler
R.W. Rodriguez
Emily A. Himmelstoss
2007
Historical Changes at Rincon, Puerto Rico, 1936-2006
1
vector digital data
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
The attributes of this dataset are based on the field requirements of the Digital Shoreline Analysis System and were automatically generated by the software during the generation intersect points.
These data were generated using DSAS, an automated software program, which does not perform checks for fidelity of the input features. Following generation of the rates and intersects by the DSAS software a visual inspection of the intersects was performed in map view to determine that no unwanted measurements were included in the desired (long- or short-term) shoreline change analysis.
This dataset contains the shoreline intersect positions generated by the DSAS software application that were used to calculate shoreline change rates for the region. Additional intersect positions and rate transects may have been generated but did not meet the required number of shorelines or time period requirements.
The shoreline intersect points represent the location where transects cast by the Digital Shoreline Analysis System (DSAS) software crosses a vector shoreline position. They can be used to visually display which shorelines were used in the rate calculations and capture details on the shoreline represented by the intersection. The distances between the reference baseline and each shoreline intersection along a transect are used by the DSAS software to compute the shoreline change metrics. The positional uncertainties associated with the shoreline and intersection points are captured in the shoreline attribute table.
Julia L. Heslin
Rachel E. Henderson
Emily A. Himmelstoss
2021
Shorelines for Vieques, Culebra, and the main island of Puerto Rico from the 1900s to 2018.
1
vector digital data
data release
doi:10.5066/P9FNRRN0
Reston, VA
U.S. Geological Survey
https://doi.org/10.5066/P9FNRRN0
https://www.sciencebase.gov/catalog/item/6149f75fd34e0df5fb96fbe9
online
2021
ground condition
PR_Shorelines
Shoreline data from four corresponding Puerto Rico shorelines Data releases which have been merged into a single feature class (PR_shorelines). Note the range of shoreline dates will vary by location.
Julia L. Heslin
Rachel E. Henderson
Emily A. Himmelstoss
2021
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
1
vector digital data
data release
doi:10.5066/P9FNRRN0
Reston, VA
U.S. Geological Survey
https://doi.org/10.5066/P9FNRRN0
https://www.sciencebase.gov/catalog/item/6149fa46d34e0df5fb96fc24
online
2021
ground condition
VC_Baselines
Baselines used by DSAS to cast transects from which shoreline changes can be measured.
DSAS v5.1 was used to create transect features (stored in a personal geodatabase) for long-term shoreline change. DSAS input parameters Used: shoreline layer = PR_Shorelines, baseline layer= VC_Baselines, baseline group field=DSAS_group, transect spacing=50 meters, search distance=200 meters, land direction=right, shoreline intersection=seaward. Files produced and saved to personal geodatabase = VC_Trans_LT. For additional details on these parameters, please see the DSAS help file distributed with the DSAS software or visit the USGS website at: https://www.usgs.gov/centers/whcmsc/science/digital-shoreline-analysis-system-dsas Some transects were manually edited for length, moved, or deleted in an edit session using standard editing tools in ArcMap v10.6.
This process step and all subsequent process steps were performed by the same person: Rachel E. Henderson
PR_Shorelines
VC_Baselines
2021
VC_Trans_LT
Rachel E. Henderson
U.S. Geological Survey
Researcher VII
mailing and physical
384 Woods Hole Road
Woods Hole
MA
02540
508-548-8700
rehenderson@contractor.usgs.gov
To calculate the long-term shoreline change rate the entire range of shorelines from 1901 to 2018 were utilized. DSAS generates shoreline intersects and shoreline change calculations stored as rate transects. Depending on the available data, the shoreline intersects used for analysis may include those referenced to the datum-based mean high water (MHW) or a proxy-based feature such as the high water line (HWL) wet-dry line (WDL). Input parameters used: shoreline layer= PR_Shorelines, shoreline date field=Date_, shoreline uncertainty field name=Uncy, the default accuracy=10 meters, shoreline intersection=seaward, transect layer= VC_Trans_LT, stats calculations=[LRR], shoreline threshold=0, confidence interval=90%. Files produced and saved to personal geodatabase = VC_Trans_LT_rates, VC_Trans_LT_intersects.
NOTE: All shorelines have an uncertainty value listed in the attribute table that provides the horizontal uncertainty associated with the shoreline, regardless of the method used. The shoreline database contains both MHW and HWL shorelines.
PR_Shorelines
VC_Trans_LT
2021
VC_Trans_LT_rates
VC_Trans_LT_intersects
DSAS v5.1 was used to create transect features (stored in a personal geodatabase) for short-term shoreline change. DSAS input parameters Used: shoreline layer = PR_Shorelines, baseline layer= VC_Baselines, baseline group field=DSAS_group, transect spacing=50 meters, search distance=200 meters, land direction=right, shoreline intersection=seaward. Files produced and saved to personal geodatabase = VC_Trans_ST. For additional details on these parameters, please see the DSAS help file distributed with the DSAS software or visit the USGS website at: https://www.usgs.gov/centers/whcmsc/science/digital-shoreline-analysis-system-dsas Some transects were manually edited for length, moved, or deleted in an edit session using standard editing tools in ArcMap v10.6.
PR_Shorelines
VC_Baselines
2021
VC_Trans_ST
To calculate the short-term shoreline change rates, shorelines from 1977 to 2018 were selected. DSAS generates shoreline intersects and shoreline change calculations stored as rate transects. Depending on the available data, the shoreline intersects used for analysis may include those referenced to the datum-based mean high water (MHW) or a proxy-based feature such as the high water line (HWL) wet-dry line (WDL). Input parameters used: shoreline layer= PR_Shorelines, shoreline date field=Date_, shoreline uncertainty field name=Uncy, the default accuracy=10 meters, shoreline intersection=seaward, transect layer= VC_Trans_ST, stats calculations=[LRR], shoreline threshold=0, confidence interval=90%. Files produced and saved to personal geodatabase = VC_Trans_ST_rates, VC_Trans_ST_intersects.
NOTE: All shorelines have an uncertainty value listed in the attribute table that provides the horizontal uncertainty associated with the shoreline, regardless of the method used. The shoreline database contains both MHW and HWL shorelines.
PR_Shorelines
VC_Trans_ST
2021
VC_Trans_ST_rates
VC_Trans_ST_intersects
A coastal shoreline classification (Bracero-Marrero and others, 2021) was used to identify areas of sandy shoreline and remove transects/intersects from analysis in areas of mangrove vegetation, rocky cliff-backed coastlines, and some areas with significant anthropogenic modification.
2021
Long-term and short-term intersect features were exported from a personal geodatabase to shapefiles in ArcMap v10.6 by right-clicking the transect layer > data > export data.
VC_Trans_LT_intersects
VC_Trans_ST_intersects
2021
VC_Intersects_LT
VC_Intersects_ST
The exported intersect shapefiles were 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.
2021
Vector
String
0.0000001
0.0000001
Decimal degrees
WGS_1984
WGS_1984
6378137.0
298.257223563
VC_Trans_Intersects_LT.shp
The shoreline intersection points are generated by DSAS where each DSAS generated transect crosses a shoreline. These intersections represent the shoreline position and contain the data necessary for DSAS to compute long-term rates. Point Object Count: 6177
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
TransOrder
Assigned by DSAS based on ordering of transects along the baseline. Used to allow user to sort transect data along the baseline from baseline start to baseline end.
U.S. Geological Survey
10
3563
BaselineID
Unique identification number of the baseline segment. If BaselineID=0 no transects will be generated. Used by DSAS to determine transect ordering alongshore if multiple baseline segments exist.
U.S. Geological Survey
1
8
ShorelineI
Date of shoreline position in mm/dd/yyyy format; date of survey as determined from shoreline layer.
U.S. Geological Survey
Date of shoreline position.
Distance
The distance in meters between the DSAS reference baseline and the shoreline intersection point along a DSAS transect. Values may be positive or negative, which is used to indicate landward (negative) or seaward (positive) direction from baseline origin.
U.S. Geological Survey
-8.069378
184.753711
IntersectX
The X-coordinate location in eastings of the intersect point in NAD_1983_NSRS2007_StatePlane_Puerto_Rico_Virgin_Isls_FIPS_5200v.
U.S. Geological Survey
290528.246211
327841.241035
IntersectY
The Y-coordinate location in northings of the intersect point in NAD_1983_NSRS2007_StatePlane_Puerto_Rico_Virgin_Isls_FIPS_5200v.
U.S. Geological Survey
227692.950304
257442.641591
Uncertaint
The uncertainty of the shoreline intersect point as defined by the positional-uncertainty value of the shoreline.
U.S. Geological Survey
1.677051
9.25
VC_Trans_Intersects_ST.shp
The shoreline intersection points are generated by DSAS where each DSAS generated transect crosses a shoreline. These intersections represent the shoreline position and contain the data necessary for DSAS to compute long-term rates. Point Object Count: 4296
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
TransOrder
Assigned by DSAS based on ordering of transects along the baseline. Used to allow user to sort transect data along the baseline from baseline start to baseline end.
U.S. Geological Survey
10
3563
BaselineID
Unique identification number of the baseline segment. If BaselineID=0 no transects will be generated. Used by DSAS to determine transect ordering alongshore if multiple baseline segments exist.
U.S. Geological Survey
1
8
ShorelineI
Date of shoreline position in mm/dd/yyyy format; date of survey as determined from shoreline layer.
U.S. Geological Survey
Date of shoreline position.
Distance
The distance in meters between the DSAS reference baseline and the shoreline intersection point along a DSAS transect. Values may be positive or negative, which is used to indicate landward (negative) or seaward (positive) direction from baseline origin.
U.S. Geological Survey
-8.069378
120.424866
IntersectX
The X-coordinate location in eastings of the intersect point in NAD_1983_NSRS2007_StatePlane_Puerto_Rico_Virgin_Isls_FIPS_5200v.
U.S. Geological Survey
290762.491482
325711.048124
IntersectY
The Y-coordinate location in northings of the intersect point in NAD_1983_NSRS2007_StatePlane_Puerto_Rico_Virgin_Isls_FIPS_5200v.
U.S. Geological Survey
227807.819716
257217.318398
Uncertaint
The uncertainty of the shoreline intersect point as defined by the positional-uncertainty value of the shoreline.
U.S. Geological Survey
1.677051
5.92
The entity and attribute information provided here describes the tabular data associated with the intersects needed to calculate long-term (~120) and short-term (~40 years) shoreline change rates. Please review the individual attribute descriptions for detailed information. All calculations for length are in meter units.
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 rates of shoreline change data, (SHP and other shapefile components), browse graphic, and the FGDC CSDGM metadata.
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.
Shapefile
ArcGIS 10.6
Esri polyline shapefile
TThese 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.
no compression applied
0.56
https://doi.org/10.5066/P9FNRRN0
https://www.sciencebase.gov/catalog/file/get/6149fa5dd34e0df5fb96fc29
https://www.sciencebase.gov/catalog/item/6149fa5dd34e0df5fb96fc29
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.
20211119
Rachel E. Henderson
U.S. Geological Survey
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
508-548-8700
rehenderson@contractor.usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time