Metadata: Identification_Information: Citation: Citation_Information: Originator: Kirsten J. Bendik Originator: Alexander C. Seymour Originator: Kara S. Doran Publication_Date: 20210121 Title: Delineated Coastal Cliff Toes Derived from Post-Hurricane Maria Lidar Elevation Data Collected from Puerto Rico: 2018 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: U.S. Geological Survey Data Release Issue_Identification: doi:10.5066/F7610XCX Publication_Information: Publication_Place: St. Petersburg, FL Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/F7610XCX Description: Abstract: The National Assessment of Coastal Change Hazards project aims to understand and forecast coastal landscape change. This dataset consists of delineated coastal cliff toes that may be used to assess the hazard posed by eroding coastal cliffs on the islands of Puerto Rico, Culebra, and Vieques. The delineation of cliff tops and toes can be used as an input into cliff hazard metrics and to measure overall cliff changes over time. Cliff tops and cliff toes were identified along three-dimensional (3D) transects using the Cliff Feature Delineation Tool (Seymour and others, 2020), which assigned coordinate locations (X, Y, Z) of cliff features over a 140,244-meter (m) stretch of the Puerto Rican coastline at 10-m intervals and output them as either polyline (cliff transects) or point (cliff top or toe) shapefiles. Feature delineation was performed using post-Hurricane Maria (landfall was September 20, 2017) rasterized topobathy lidar elevation data collected by the U.S. Army Corps of Engineers and published by the National Oceanic and Atmospheric Administration National Centers for Environmental Information (2018) as bare earth digital elevation model (DEM) files. The delineation tool (Seymour and others, 2020) was used to generate 3D point features in Esri ArcGIS shapefile format representing the cliff toes; these files should be opened in a 3D geographic information system (GIS) viewer. Purpose: To provide data on the morphology of coastal cliffs in Puerto Rico and surrounding islands offshore of the east coast. Additional survey and data details are available from the U.S. Geological Survey Coastal and Marine Geoscience Data System (CMGDS) at https://cmgds.marine.usgs.gov/fan_info.php?fan=2018-307-DD. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20180703 Ending_Date: 20180817 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -67.275049 East_Bounding_Coordinate: -65.239819 North_Bounding_Coordinate: 18.545530 South_Bounding_Coordinate: 17.919912 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:16ae2888-a8d5-4588-aa97-6ea85f6deb5a Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: St. Petersburg Coastal and Marine Science Center Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: SPCMSC Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: elevation Theme_Keyword: environment Theme_Keyword: oceans Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: hazards Theme_Keyword: marine geology Theme_Keyword: ocean sciences Theme_Keyword: coastal processes Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: distributions Theme_Keyword: bathymetry and elevation Theme_Keyword: physical habitats and geomorphology Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords Theme_Keyword: effects of coastal change Theme_Keyword: shoreline accretion Theme_Keyword: shoreline erosion Theme_Keyword: storm erosion Theme_Keyword: topographic mapping Theme_Keyword: altimetry Theme_Keyword: hurricanes and typhoons Place: Place_Keyword_Thesaurus: None Place_Keyword: United States of America Place_Keyword: Puerto Rico Place_Keyword: Culebra Place_Keyword: Vieques Access_Constraints: None Use_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 originators of the data in future products or derivative research. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alexander Seymour Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: Saint Petersburg State_or_Province: FL Postal_Code: 33701 Country: UNITED STATES Contact_Voice_Telephone: 727-502-8122 Contact_Facsimile_Telephone: 727-502-8001 Contact_Electronic_Mail_Address: aseymour@usgs.gov Native_Data_Set_Environment: Microsoft Windows 10; Esri ArcGIS 10.7; Esri ArcGIS Pro 2.5. Cross_Reference: Citation_Information: Originator: Seymour, A.C., Hapke, C.J., and Warrick, J. Publication_Date: 2020 Title: Cliff Feature Delineation Tool and Baseline Builder Version 1.0 Series_Information: Series_Name: U.S. Geological Survey Open File Report 2020-1070, 54p. Issue_Identification: doi:10.3133/ofr20201070 Publication_Information: Publication_Place: St.Petersburg, Florida Publisher: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Online_Linkage: https://doi.org/10.3133/ofr20201070 Cross_Reference: Citation_Information: Originator: Seymour, A.C., Hapke, C.J., and Warrick, J. Publication_Date: 2020 Title: Cliff Feature Delineation Tool and Baseline Builder Version 1.0 Series_Information: Series_Name: U.S. Geological Survey Software Release Issue_Identification: doi:10.5066/P9UKW7PO Publication_Information: Publication_Place: St. Petersburg, Florida Publisher: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Online_Linkage: https://doi.org/10.5066/P9UKW7PO Data_Quality_Information: Logical_Consistency_Report: Morphologic features were checked for Quality Assurance/Quality Control (QA/QC) in ArcGIS Pro. Completeness_Report: This dataset is considered complete for the information presented as described in the abstract section. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Horizontal accuracy of the cliff toe is represented only by the published horizontal error estimate (1 meter) of the lidar-derived DEM that was used to generate cliff features. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Vertical accuracy of the cliff toe is represented only by the published vertical error estimate (0.196 meters) of the lidar-derived DEM that was used to generate cliff features. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: National Oceanic and Atmospheric Administration (NOAA) Originator: U.S. Army Corps of Engineers (USACE) Originator: Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) Publication_Date: 20180828 Title: 2018 USACE FEMA Topobathy Lidar DEM: Main Island, Culebra, and Vieques, Puerto Rico Online_Linkage: https://www.fisheries.noaa.gov/inport/item/53098 Type_of_Source_Media: Online digital data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20180703 Ending_Date: 20180817 Source_Currentness_Reference: The date when lidar surveys were conducted. Source_Citation_Abbreviation: 2018-307-DD Source_Contribution: A lidar survey that was used to estimate cliff morphology variables. Process_Step: Process_Description: The Cliff Feature Delineation Tool (Seymour and others, 2020) was used to extract cliff top and toe points at 10-m alongshore intervals wherever coastal cliffs were present along the Puerto Rico coastline. For more information on how cliff top and toe features were extracted, please see USGS Open-File Report 2020–1070 (Seymour and others, 2020). The process of delineating the cliff top features began by using a 2018 post-Maria bare earth topobathy lidar DEM as the elevation input. The DEM downloaded from the NOAA NCEI site was a 32-bit GeoTiff raster image with a 1-m grid spacing. Horizontal positions were provided in geographic coordinates referenced to the World Geodetic System of 1984 (WGS84) Universal Transverse Mercator (UTM) Zone 20 North (20N) and vertical positions were referenced to the Puerto Rico Vertical Datum of 2002 (PRVD02). Baseline inputs were represented by Esri ArcGIS shoreline vectors or generated by the Cliff Feature Delineation Tool. A user parameterized tool iterated separately for regions of a cliff that had relatively similar morphology, in all cases following rules outlined in the Seymour and others (2020) user guide. The final file, CliffToes_PuertoRico.shp, was output with horizontal positions and elevations remaining in their native projected coordinate reference systems. Outputs went through a QA/QC process in ArcGIS Pro and were edited, if needed. Process_Date: 20201019 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 12,918 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 20 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -63.0 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 WGS 1984 Ellipsoid_Name: WGS 1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: CliffToes_PuertoRico.shp Entity_Type_Definition: Shapefile and associated attribute table comprised of cliff toe features delineated from post-Hurricane Maria topobathy lidar elevation data acquired on the islands of Puerto Rico, Culebra, and Vieques in 2018. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: FID Attribute_Definition: The ObjectID field created by default by ArcGIS. Establishes a unique ID for each shapefile feature or table entry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 12,917 Attribute: Attribute_Label: Shape Attribute_Definition: Shape geometry field created by default by ArcGIS. Labels features' geometry type. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Point ZM Enumerated_Domain_Value_Definition: Cliff Toe Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: RIF Attribute_Definition: Route Identification Field. Links cliff toes with the appropriate transect they were generated on within a processing region. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 10960 Attribute: Attribute_Label: Dist Attribute_Definition: Marks the distance from the seaward start of the transect where a cliff toe feature was generated. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 118 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: F_Type Attribute_Definition: Records the feature type used to represent the cliff toe. Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Top, HighConvex, ToeHP, LowConvex, Mid, HighConcave, LowConcave, ToeM Enumerated_Domain_Value_Definition: Cliff Toe Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: POINT_X Attribute_Definition: The x-coordinate of the cliff toe, referenced to the shapefile's spatial reference, which is the WGS84 UTM Zone 20N projected coordinate system. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 48415.3643 Range_Domain_Maximum: 262775.8310 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: POINT_Y Attribute_Definition: The y-coordinate of the cliff toe, referenced to the shapefile's spatial reference, which is the WGS84 UTM 20N projected coordinate system. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1986508.4525 Range_Domain_Maximum: 2052022.8827 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: POINT_Z Attribute_Definition: The cliff toe elevation, referenced to PVRD02. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -10.0317 Range_Domain_Maximum: 49.3789 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: SpRef Attribute_Definition: The spatial reference of the feature. Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: WGS_1984_UTM_Zone_20N Enumerated_Domain_Value_Definition: Coordinate system associated with each point feature, which is the World Geodetic System of 1984 Universal Transverse Mercator Zone 20N. Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: Run Attribute_Definition: Records the processing region as well as the processing settings used in the Cliff Feature Delineation Tool (Seymour and others, 2020) to identify the cliff tops and toes. Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Values recorded reflect multiple processing regions and various settings associated with numerous runs of the Cliff Feature Delineation Tool (Seymour and others, 2020). Different iterations correspond to particular sections of coastline and are recorded in text format. Attribute: Attribute_Label: Est_Z_Err Attribute_Definition: Estimated vertical error of the lidar-derived DEM used to generate cliff toe features. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.196 Range_Domain_Maximum: 0.196 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Est_H_Err Attribute_Definition: Estimated horizontal error of the lidar-derived DEM used to generate cliff toe features. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 1 Attribute_Units_of_Measure: meters Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Kara S. Doran Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: Saint Petersburg State_or_Province: FL Postal_Code: 33701 Contact_Voice_Telephone: 727-502-8117 Contact_Facsimile_Telephone: 727-502-8001 Contact_Electronic_Mail_Address: kdoran@usgs.gov 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: shapefile File_Decompression_Technique: Unzip using software such as WinZip, 7zip (PC users), or BetterZip (Mac users). Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-F7610XCX/data/CliffToes_PuertoRico Fees: none Metadata_Reference_Information: Metadata_Date: 20201130 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Kirsten J. Bendik Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: Saint Petersburg State_or_Province: FL Postal_Code: 33701 Country: UNITED STATES Contact_Voice_Telephone: 727-502-8034 Contact_Facsimile_Telephone: 727-502-8001 Contact_Electronic_Mail_Address: kbendik@contractor.usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time