﻿Metadata:
  Identification_Information:
    Citation:
      Citation_Information:
        Originator: Justin J. Birchler
        Originator: Priscila Vargas-Babilonia
        Originator: Mark L. Buckley
        Originator: Margaret L. Palmsten
        Publication_Date: 20250716
        Title: Beach Profile Data Collected from Isla Verde, Puerto Rico (December 8, 2022)
        Geospatial_Data_Presentation_Form: tabular digital data
        Larger_Work_Citation:
          Citation_Information:
            Originator: Justin J. Birchler
            Originator: Priscila Vargas-Babilonia
            Originator: Mark L. Buckley
            Originator: Margaret L. Palmsten
            Originator: David M. Thompson
            Originator: Benjamin A. Galbraith
            Originator: Luis Daniel Pérez-Squeo
            Publication_Date: 20250716
            Title: Beach Profile Data Collected From Isla Verde, Puerto Rico
            Edition: 1.0
            Series_Information:
              Series_Name: U.S. Geological Survey data release
              Issue_Identification: doi:10.5066/P13VHFF2
            Publication_Information:
              Publication_Place: St. Petersburg, Florida
              Publisher: U.S. Geological Survey
            Online_Linkage: https://doi.org/10.5066/P13VHFF2
    Description:
      Abstract: This dataset, prepared by the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC), provides beach profile data collected at Isla Verde, Puerto Rico. Data were collected in 2022 on foot by a person equipped with a Global Navigation Satellite System (GNSS) receiver and antenna affixed to a backpack outfitted for surveying location and elevation data (XYZ) along pre-determined transects. The horizontal position data are given in the Universal Transverse Mercator (UTM) projected coordinate system, Zone 20 North (20N), referenced to the North American Datum of 1983 (NAD 83); the elevation data are referenced to the Puerto Rico Vertical Datum of 2002 (PRVD02), GEOID18.
      Purpose: The purpose of this dataset is to provide geospatial and topographic profile data, in support of a coastal video monitoring station at Isla Verde, Puerto Rico. Following SPCMSC data management protocols, this survey was assigned a USGS field activity number (FAN), 2022-330-FA. Additional survey and data details are available at https://cmgds.marine.usgs.gov/services/activity.php?fan=2022-330-FA.
    Time_Period_of_Content:
      Time_Period_Information:
        Single_Date/Time:
          Calendar_Date: 20221208
      Currentness_Reference: ground condition
    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: None planned
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -66.0129853610283
        East_Bounding_Coordinate: -66.0078627335924
        North_Bounding_Coordinate: 18.4448028869688
        South_Bounding_Coordinate: 18.4437111626588
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: USGS Metadata Identifier
        Theme_Keyword: USGS:7061586f-d8bb-43f7-98d2-e218a06c17fa
      Theme:
        Theme_Keyword_Thesaurus: ISO 19115 Topic Category
        Theme_Keyword: geoscientificInformation
        Theme_Keyword: elevation
        Theme_Keyword: oceans
      Theme:
        Theme_Keyword_Thesaurus: Global Change Master Science Directory (GCMD)
        Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
        Theme_Keyword: EARTH SCIENCE > OCEANS > COASTAL PROCESSES > BEACHES
        Theme_Keyword: PROVIDERS > GOVERNMENT AGENCIES-U.S. FEDERAL AGENCIES > DOI > USGS > DOI/USGS/CMG/SP > ST. PETERSBURG COASTAL AND MARINE SCIENCE CENTER, COASTAL AND MARINE GEOLOGY, U.S. GEOLOGICAL SURVEY, U.S. DEPARTMENT OF THE INTERIOR
      Theme:
        Theme_Keyword_Thesaurus: Data Categories for Marine Planning
        Theme_Keyword: distributions
        Theme_Keyword: bathymetry and elevation
      Theme:
        Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords
        Theme_Keyword: beach
        Theme_Keyword: topographic mapping
        Theme_Keyword: altimetry
        Theme_Keyword: Global Positioning System (GPS) observations
      Theme:
        Theme_Keyword_Thesaurus: USGS Thesaurus
        Theme_Keyword: GPS measurement
        Theme_Keyword: topography
        Theme_Keyword: geology
        Theme_Keyword: geomorphology
        Theme_Keyword: marine geology
      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_Keyword: elevation data
      Place:
        Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
        Place_Keyword: Atlantic Ocean
        Place_Keyword: Puerto Rico
        Place_Keyword: Isla Verde
      Temporal:
        Temporal_Keyword_Thesaurus: None
        Temporal_Keyword: 2022
    Access_Constraints: No access constraints. Please see 'Distribution Information' for details.
    Use_Constraints: These data are marked with a Creative Common CC0 1.0 Universal License. These data are in the public domain and do not have any use constraints. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations.
    Point_of_Contact:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
          Contact_Person: Justin J. Birchler
        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: 727-502-8000
        Contact_Electronic_Mail_Address: jbirchler@usgs.gov
    Native_Data_Set_Environment: Environment as of Metadata Creation: Microsoft Windows 11 Enterprise Version 23H2; MathWorks® MATLAB R2024a; Ashtech™ ProFlex™ 500/800 Global Navigation Satellite System (GNSS); Spectra Precision® SP80 Global Navigation Satellite System (GNSS); HYPACK® 2022; NovAtel® GrafNav (Waypoint Product Group) version 9.0.
    Cross_Reference:
      Citation_Information:
        Originator: Brown, Jenna A.
        Originator: Birchler, Justin J.
        Originator: Thompson, David M.
        Originator: Long, Joseph W.
        Originator: Seymour, Alexander C.
        Publication_Date: 20180314
        Title: Beach Profile Data Collected From Madeira Beach, Florida
        Edition: 5.0
        Series_Information:
          Series_Name: U.S. Geological Survey data release
          Issue_Identification: doi:10.5066/F7T43S94
        Publication_Information:
          Publication_Place: St. Petersburg, Florida
          Publisher: U.S. Geological Survey
        Online_Linkage: https://doi.org/10.5066/F7T43S94
    Cross_Reference:
      Citation_Information:
        Originator: Doran, Kara S.
        Originator: Long, Joseph W.
        Originator: Birchler, Justin J.
        Originator: Brenner, Owen T.
        Originator: Hardy, Matthew W.
        Originator: Morgan, Karen L.M.
        Originator: Stockdon, Hilary F.
        Originator: Torres, Miguel L.
        Publication_Date: 20170805
        Title: Lidar-derived beach morphology (dune crest, dune toe, and shoreline) for U.S. sandy coastlines (ver. 6.0, March 2024)
        Edition: 6.0
        Series_Information:
          Series_Name: U.S. Geological Survey data release
          Issue_Identification: doi:10.5066/F7GF0S0Z
        Publication_Information:
          Publication_Place: St. Petersburg, Florida
          Publisher: U.S. Geological Survey
        Online_Linkage: https://doi.org/10.5066/F7GF0S0Z
    Cross_Reference: 
      Citation_Information: 
        Originator: Stockdon, Hilary F. 
        Originator: Doran, Kara S. 
        Originator: Sallenger, Asbury H. 
        Publication_Date: 20091001 
        Title: Extraction of Lidar-Based Dune-Crest Elevations for Use in Examining the Vulnerability of Beaches to Inundation During Hurricanes 
        Series_Information: 
          Series_Name: Journal of Coastal Research 
          Issue_Identification: Volume 10053 (2009), 59-65 
        Online_Linkage: https://doi.org/10.2112/SI53-007.1
    Cross_Reference: 
      Citation_Information: 
        Originator: Blackman, Ralph B.
        Originator: Tukey, John W.
        Publication_Date: 1959 
        Title: The Measurement of Power Spectra, from the Point of View of Communications Engineering
        Publication_Information: 
          Publication_Place: New York
          Publisher: Dover Publications, Inc
  Data_Quality_Information:
    Attribute_Accuracy:
      Attribute_Accuracy_Report: Cross-shore profiles were quality checked for accuracy by comparing elevations where cross-shore and alongshore transects overlapped.
    Logical_Consistency_Report: Cross-shore profiles were quality checked for consistency by comparing elevations to previous or subsequent surveys of the same transects.
    Completeness_Report: A total of 53 transects (48 cross-shore, 5 alongshore) were planned for the survey, all but two cross-shore transects were collected and additional alongshore transect was collected. 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: The horizontal accuracy of the post-processed kinematic GNSS data is +/- 2 centimeters (cm), based on the accuracy of the base station used to post-process the data; see the Data_Quality_Information and Process_Step sections for more information.
      Vertical_Positional_Accuracy:
        Vertical_Positional_Accuracy_Report: The vertical accuracy of the post-processed kinematic GNSS data is +/- 3 centimeters (cm), based on the accuracy of the base station used to post-process the data; see the Data_Quality_Information and Process_Step sections for more information.
    Lineage:
      Process_Step:
        Process_Description:
          PLANNING
          Transects were created using the MathWorks® MATLAB R2024a computing environment. Cross-shore transects were planned perpendicular to the beach by utilizing a measured 2018 lidar shoreline (Doran and others, 2017) to find a shoreline angle. This resulted in 48 cross-shore transects (lines 17 to 64) spaced approximately 10 meters (m) apart and spanning approximately 470 m in the alongshore direction. Five alongshore transects (lines 1 to 5), spanning the length of the study area, were cast approximately 10 m apart in the cross-shore, spanning from the dune toe to the shoreline. Transect line planning was done in a similar way to Brown and others (2018).
        Process_Date: 20220813
        Process_Contact:
          Contact_Information:
            Contact_Organization_Primary:
              Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
              Contact_Person: David M. Thompson
            Contact_Position: Physical Scientist
            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: 727-502-8079
            Contact_Electronic_Mail_Address: dthompson@usgs.gov
      Process_Step:
        Process_Description: 
          ACQUISITION
          Transect lines were surveyed, on foot, by a person equipped with a GNSS receiver and a GNSS antenna affixed to a SECO© surveying backpack, which was connected to a Windows laptop PC running HYPACK® 2022 survey acquisition software. Post-processed kinematic GNSS data were recorded at 5 hertz (Hz) with an Ashtech™ ProFlex™ 500/800 GNSS receiver and an Ashtech™ GNSS geodetic survey antenna for the cross-shore transects and a Spectra Precision SP80 GNSS receiver and antenna for the alongshore transects. The time associated with the beginning and end of surveying each transect line was recorded on the laptop in HYPACK® by the surveyor. These data acquisition steps are similar to those reported by Brown and others (2018). For this survey, 46 cross-shore transects (lines 17 to 64; except for lines 39 and 46) and 6 alongshore transects (lines 1 to 6) were collected.
        Process_Date: 20221208
        Process_Contact:
          Contact_Information:
            Contact_Organization_Primary:
              Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
              Contact_Person: Justin J. Birchler
            Contact_Position: Physical Scientist
            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: 727-502-8000
            Contact_Electronic_Mail_Address: jbirchler@usgs.gov
      Process_Step:
        Process_Description: 
          GNSS POST-PROCESSING
          Raw GNSS post-processed kinematic data recorded on the surveying receiver was post-processed using GNSS post-processing software GrafNav (Waypoint Product Group) version 9.0. The GNSS data recorded by the surveying receiver were processed in NAD 83 geographic coordinates to concurrent static GNSS data recorded by a local base station of known position (NAD 83). The base station used was a NovAtel® WAAS G-II GNSS receiver and MPL WAAS 2225NW GNSS geodetic survey antenna at a station within the National Oceanic and Atmospheric Administration's Continuously Operating Reference Stations (CORS) Network at San Juan, Puerto Rico, with site ID ZSU4 (https://geodesy.noaa.gov/CORS/ncn_station_pages/index.html?stationID=ZSU4). The final, differentially-corrected, precise GNSS positions were exported from GrafNav in American Standard Code for Information Interchange (ASCII) text format, with projected horizontal coordinates in NAD 83, UTM Zone 20N, and vertical coordinates in PRVD02, GEOID18. These post-processing steps are similar to those reported in Brown and others (2018).
        Process_Date: 20221229
        Process_Contact:
          Contact_Information:
            Contact_Organization_Primary:
              Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
              Contact_Person: Justin J. Birchler
            Contact_Position: Physical Scientist
            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: 727-502-8000
            Contact_Electronic_Mail_Address: jbirchler@usgs.gov
      Process_Step:
        Process_Description: 
          DATA PROCESSING
          Beach profile horizontal position and elevation data for each individual transect were extracted from the post-processed GNSS data based on the surveying times recorded with HYPACK® using the MathWorks® MATLAB R2024a computing environment. The elevation data were adjusted by subtracting the elevation of the GNSS antenna above the ground when attached to the surveying backpack during the survey. The antenna height corresponding to lines 1-3 and 5-6 is 1.78m and the antenna height corresponding to lines 4 and 17-64 is 1.345m. The data were smoothed in the cross-shore direction to reduce the noisiness of the data, similar to the smoothing method done by Stockdon and others (2009). The noisiness is due to the high temporal sampling frequency and the walking motion of the human surveyor. The choice of a moving 1-m wide Hanning filter (Blackman and Tukey, 1959) was sufficient to reduce noise along the profile while preserving the elevation of the profile. The data were quality-controlled in MATLAB to remove invalid data points by eliminating points with poor GNSS data quality, visually inspecting plots of horizontal positions and discarding points not on the cross-shore beach profile lines (e.g., points just prior to and just after a transect), and visually inspecting plots of elevation and discarding points with erroneous GNSS data (e.g., spikes in the GNSS data). The final beach profile data were written to individual text files (.xyz) in tabular format, with columns representing: 1) Easting (NAD83, UTM Zone 20N), 2) Northing (NAD83, UTM Zone 20N), and 3) Orthometric Elevation (PRVD02, GEOID18).
        Process_Date: 20230119
        Process_Contact:
          Contact_Information:
            Contact_Organization_Primary:
              Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
              Contact_Person: Justin J. Birchler
            Contact_Position: Physical Scientist
            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: 727-502-8000
            Contact_Electronic_Mail_Address: jbirchler@usgs.gov
  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: 23877
  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: 1
            Ordinate_Resolution: 1
          Planar_Distance_Units: meters
      Geodetic_Model:
        Horizontal_Datum_Name: North American Datum 1983
        Ellipsoid_Name: Geodetic Reference System 80
        Semi-major_Axis: 6378137.000000
        Denominator_of_Flattening_Ratio: 298.257222101
    Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
        Altitude_Datum_Name: Puerto Rico Vertical Datum of 2002
        Altitude_Resolution: 0.001
        Altitude_Distance_Units: meters
        Altitude_Encoding_Method: Attribute values
  Entity_and_Attribute_Information:
    Detailed_Description:
      Entity_Type:
        Entity_Type_Label: 20221208_IslaVerdePR_XYZ.zip
        Entity_Type_Definition: Processed beach profile data collected December 8, 2022, from Isla Verde, Puerto Rico. The location and elevation data are provided in tabular format (.xyz).
        Entity_Type_Definition_Source: U.S. Geological Survey
      Attribute:
        Attribute_Label: Easting
        Attribute_Definition: UTM x-axis coordinate (NAD 83, UTM Zone 20N)
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 181728.200
            Range_Domain_Maximum: 182269.271
            Attribute_Units_of_Measure: meters
      Attribute:
        Attribute_Label: Northing
        Attribute_Definition: UTM y-axis coordinate (NAD 83, UTM Zone 20N)
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 2041922.711
            Range_Domain_Maximum: 2042046.984
            Attribute_Units_of_Measure: meters
      Attribute:
        Attribute_Label: Elevation
        Attribute_Definition: Orthometric elevation z-coordinate (PRVD02)
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: -0.702
            Range_Domain_Maximum: 3.543
            Attribute_Units_of_Measure: meters
  Distribution_Information:
    Distributor:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
          Contact_Person: USGS SPCMSC Data Management
        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: 727-502-8000
        Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov
    Resource_Description: line*.xyz
    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.
    Standard_Order_Process:
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: tab-delimited text
          File_Decompression_Technique: ZIP
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P13VHFF2/data/20221208_IslaVerdePR_XYZ.zip 
      Fees: None
  Metadata_Reference_Information:
    Metadata_Date: 20250716
    Metadata_Contact:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
          Contact_Person: USGS SPCMSC Data Management
        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: 727-502-8000
        Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov
    Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
    Metadata_Standard_Version: FGDC-STD-001-1998
