Metadata: Identification_Information: Citation: Citation_Information: Originator: David M. Thompson Originator: Rangley C. Mickey Publication_Date: 20250121 Title: Sea Turtle Nesting Decision Points and Cross-Shore Beach Profile Data Collected on June 23, 2022, from South Hutchinson Beach, Florida Geospatial_Data_Presentation_Form: tabular digital data Larger_Work_Citation: Citation_Information: Originator: David M. Thompson Originator: Rangley C. Mickey Publication_Date: 20250121 Title: Sea Turtle Nesting Decision Points and Beach Profile Data on Florida Beaches Series_Information: Series_Name: U.S. Geological Survey data release Issue_Identification: doi:10.5066/P9L8Z7C7 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/P9L8Z7C7 Description: Abstract: On June 23, 2022, surveys were conducted on ‘high-density’ sea turtle nesting areas located on South Hutchinson Beach, Florida. This dataset, SouthHutchinson_20220623.zip, was collected and processed by the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) and includes sea turtle nesting decision point locations (.csv) and cross-shore beach profiles (.xyz) at those locations. Utilizing previously published methods for collecting beach profile data (Henderson and others, 2016; Brown and others, 2018), data were acquired by USGS scientists walking along cross-shore transect lines while carrying a survey backpack that was equipped with a Global Navigation Satellite System (GNSS) receiver and GNSS antenna. The horizontal position data are provided in the Universal Transverse Mercator (UTM) coordinate system, Zone 17 North (17N), referenced to the North American Datum of 1983 (NAD83), and the elevation data are referenced to the North American Vertical Datum of 1988 (NAVD88), GEOID12B. Purpose: The purpose of this dataset is to provide sea turtle nesting decision points and topographic profile data in support of a project attempting to assess sea turtle nesting response on nourished beaches. The project was done in collaboration with U.S. Fish and Wildlife Service (USFWS), Florida Fish and Wildlife Conservation Commission (FWC) and the University of South Florida (USF). To ensure that SPCMSC data management protocols were followed, this survey was assigned a USGS field activity number (FAN), 2022-318-FA. Additional survey and data details are available on the Coastal and Marine Geoscience Data System (CMGDS) at https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-318-FA. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20220623 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -80.22011446 East_Bounding_Coordinate: -80.19999434 North_Bounding_Coordinate: 27.30713320 South_Bounding_Coordinate: 27.26409162 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:0b344835-6f87-4b12-89a0-3b5a408593ea Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: elevation Theme_Keyword: oceans Theme: Theme_Keyword_Thesaurus: Global Change Master 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 Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: distributions Theme_Keyword: elevation Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords Theme_Keyword: beach Theme_Keyword: topographic mapping Theme_Keyword: altimetry Theme_Keyword: Global Navigation Satellite System (GNSS) observations Theme: Theme_Keyword_Thesaurus: USGS Thesaurus 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: SPCMSC Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: elevation data Theme_Keyword: GNSS measurement Place: Place_Keyword_Thesaurus: Common Geographic Areas Place_Keyword: United States Place_Keyword: South Atlantic Place_Keyword: Florida Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 2022 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, St. Petersburg Coastal and Marine Science Center as the originator of these data in future products or derivative research. Point_of_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_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: 727-502-8079 Contact_Electronic_Mail_Address: dthompson@usgs.gov Data_Set_Credit: Funding and support for this study were provided by the National Fish and Wildlife Foundation (NFWF). This document was improved by scientific/editorial and metadata reviews from Nancy T. Dewitt and Tess Rivenbark-Terrano of the St. Petersburg Coastal and Marine Science Center (SPCMSC). Native_Data_Set_Environment: Environment as of Metadata Creation: Microsoft Windows 10 Enterprise Version 10.0.18363 (Build 18363); NovAtel’s Waypoint GNSS Post Processing Software Version 8.7; Mathworks MATLAB R2020a Cross_Reference: Citation_Information: Originator: Henderson (Hehre), Rachel E. Originator: Hapke, Cheryl J. Originator: Brenner, Owen T. Originator: Reynolds, B.J. Publication_Date: 20160927 Title: Hurricane Sandy beach response and recovery at Fire Island, New York: Shoreline and beach profile data, October 2012 to October 2014 Edition: 1.1 Series_Information: Series_Name: U.S. Geological Survey Data Series Issue_Identification: 931 Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ds931 Cross_Reference: Citation_Information: Originator: Brown, Jennifer 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 - St. Petersburg Coastal and Marine Science Center Online_Linkage: https://doi.org/10.5066/F7T43S94 Cross_Reference: Citation_Information: Originator: Plant, Nathaniel G. Originator: Holland, Todd K. Originator: Puleo, Jack A. Publication_Date: 20021120 Title: Analysis of the scale of errors in nearshore bathymetric data Series_Information: Series_Name: Marine Geology Issue_Identification: Volume 191, Issues 1-2 Publication_Information: Publication_Place: Amsterdam, Netherlands Publisher: Elsevier B.V. Other_Citation_Details: Pages 71-86 Online_Linkage: https://doi.org/10.1016/S0025-3227(02)00497-8 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Cross-shore profiles were quality checked for accuracy by comparing elevations where cross-shore transects and turtle crawl paths overlapped. The turtle crawl paths are not included in this data release. Logical_Consistency_Report: Cross-shore profiles were quality checked for consistency by comparing elevations to previous or subsequent surveys of transects nearby. Completeness_Report: This survey included twenty-six transects through turtle nesting decision points. 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 Florida Permanent Reference Network (FPRN) Continuously Operating Reference Station (CORS) used to post-process the data. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The vertical accuracy of the post-processed kinematic GNSS data is +/- 3 cm, based on the accuracy of the FPRN CORS used to post-process the data. Lineage: Process_Step: Process_Description: PLANNING Sea turtle nesting decision points, either nest or apex of false crawl (no nest), were identified and marked by FWC contractors on the morning of the survey. Process_Date: 20220623 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center Contact_Person: Rangley C. Mickey 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: 703-648-6674 Contact_Electronic_Mail_Address: rmickey@usgs.gov Process_Step: Process_Description: ACQUISITION Transect lines were surveyed on foot by a person equipped with a GNSS receiver and antenna affixed to a SECO© surveying backpack. Transects started at the water’s edge, continued through either the turtle nest or the false crawl apex and into the dune until vegetation stopped the surveyor. The surveyor stopped for approximately 10 seconds (s) at either the nest or the apex of the false crawl, while walking the transect, making it easier to subsequently identify those locations during the DATA PROCESSING step. Kinematic GNSS data were recorded at 10 Hertz (Hz) with an Ashtech ProFlexTM 800 GNSS receiver and an Ashtech GNSS survey antenna. Process_Date: 20220623 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center Contact_Person: Rangley C. Mickey 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: 703-648-6674 Contact_Electronic_Mail_Address: rmickey@usgs.gov Process_Step: Process_Description: GNSS DATA POST-PROCESSING Raw kinematic GNSS data recorded on the surveying receiver were post-processed using GrafNav (NovAtel’s Waypoint GNSS Post Processing Software) version 8.7 to achieve the maximum horizontal position and elevation data accuracies. The kinematic GNSS data recorded by the surveying receiver were processed in NAD83 geographic coordinates to concurrent static GNSS data recorded by a local base station of known position (NAD83). The base station used was the FPRN, (https://www.fdot.gov/Geospatial/fprn.shtm) site at Stewart, Florida (site name = STEW). The final, differentially corrected, precise GNSS positions were exported from GrafNav in American Standard Code for Information Interchange (ASCII) text format as projected horizontal coordinates in NAD83, UTM Zone 17N, and vertical coordinates in NAVD88, GEOID12B. These post-processing steps are similar to those reported in Henderson and others (2016), the difference being that this survey utilized FPRN-CORS reference station data while Henderson and others (2016) established and collected data from their own reference station. Process_Date: 20220627 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center Contact_Person: Rangley C. Mickey 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: 703-648-6674 Contact_Electronic_Mail_Address: rmickey@usgs.gov Process_Step: Process_Description: DATA PROCESSING Beach profile horizontal position and elevation data for each transect and nesting decision point location (nest or apex of false crawl) were extracted from the post-processed GNSS data using the MathWorks MATLAB R2020a computing environment. First, the elevation data were adjusted by subtracting the elevation of the GNSS antenna above the ground. This measurement is taken while the backpack is attached to the surveyor and measured from the antenna reference point (ARP) to the ground (1.85 meters (m)). The elevation data were then smoothed in the cross-shore direction using a moving 0.5 m wide Hanning filter (Plant and others, 2002) to reduce vertical noise resulting from the walking motion of the surveyor. Next, the data were quality-controlled to remove invalid data points by eliminating points identified as having poor GNSS data quality by GrafNav, visually inspecting horizontal position plots and discarding points not on the cross-shore beach profile lines, and visually inspecting elevation plots and discarding erroneous GNSS data (for example, large spikes in the elevation data). The 0.5 m wide Hanning filter and quality control steps were chosen to be consistent with previous data releases of this type (e.g. Brown and others, 2018). In some cases, there was not enough usable data to define a profile or the decision point so those transect/decision point data were excluded. Lastly, the data were interpolated onto an evenly spaced 0.10 m cross-shore transect. The final beach profile data were written to individual text files (.xyz) in tabular format, with columns representing: 1) Easting (NAD83, UTM Zone 17N), 2) Northing (NAD83, UTM Zone 17N), and 3) Orthometric Elevation (NAVD88, GEOID12B). The data processing methods described here closely follow those developed by Brown and others (2018). The naming convention of the transects and nesting decision points is as follows: LOC_YYMMDD_SS_T#, where LOC is a three letter abbreviation of the location (MEL = Melbourne, SHU = South Hutchinson, JEN = Jensen, JUP = Jupiter, and JUN = Juno), YYMMDD is the date, SS is the turtle species (Cc for Caretta caretta, Loggerhead sea turtle; Cm for Chelonia mydas, Green sea turtle; and Dc for Dermochelys coriacea, Leatherback sea turtle), T is the type of crawl (N = Nest and FC = False Crawl), and # is the transect/decision point number mapped on that survey date. The decision point locations were written to a comma-separated values (.csv) file containing the same naming convention as the profiles and the x, y, and z coordinates. Process_Date: 20221212 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 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: 12266 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 17 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -81.0 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: 0.501 Ordinate_Resolution: 0.536 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: North American Vertical Datum 1988 Altitude_Resolution: 0.0001 Altitude_Distance_Units: meters Altitude_Encoding_Method: Attribute values Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: SouthHutchinson_20220623.zip Entity_Type_Definition: Processed beach profile and turtle nesting decision point data collected June 23, 2022, at South Hutchinson Beach, Florida. The profile data (location and elevation) are provided in individual .xyz files and the combined range domains of all the profiles collected this day are detailed below. The nesting decision point data (location and elevation of nest or apex of false crawl) are provided in .csv format. Entity_Type_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: x_UTMEasting Attribute_Definition: UTM x-coordinate (NAD83, UTM Zone 17N) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 577166.653 Range_Domain_Maximum: 579187.854 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: y_UTMNorthing Attribute_Definition: UTM y-coordinate (NAD83, UTM Zone 17N) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3015939.368 Range_Domain_Maximum: 3020694.965 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: z_elevNAVD88 Attribute_Definition: Orthometric elevation z-coordinate (NAVD88, GEOID12B) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1.071 Range_Domain_Maximum: 4.455 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: crawl_id Attribute_Definition: Filename of the beach profile (.xyz) files. This field is only present in the decision points (.csv) file. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: LOC_YYMMDD_SS_T#: LOC is a three-letter abbreviation of the location (MEL = Melbourne, SHU = South Hutchinson, JEN=Jensen, JUP=Jupiter, and JUN = Juno), YYMMDD is the date, SS is the turtle species (Cc for Caretta caretta, Loggerhead sea turtle; Cm for Chelonia mydas, Green sea turtle; and Dc for Dermochelys coriacea, Leatherback sea turtle), T is the type of crawl (N = Nest and FC = False Crawl), and # is the transect/decision point number mapped on that survey date. 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: SHU_220623_Cc_FC1.xyz, SHU_220623_Cc_N2.xyz, SHU_220623_Cm_FC3.xyz, SHU_220623_Cc_FC4.xyz, SHU_220623_Cc_FC5.xyz, SHU_220623_Cc_FC6.xyz, SHU_220623_Cc_N7.xyz, SHU_220623_Cm_N8.xyz, SHU_220623_Cc_N9.xyz, SHU_220623_Cc_N10.xyz, SHU_220623_Cc_N11.xyz, SHU_220623_Cc_FC12.xyz, SHU_220623_Cc_FC13.xyz, SHU_220623_Cc_N14.xyz, SHU_220623_Cc_N15.xyz, SHU_220623_Cm_FC16.xyz, SHU_220623_Cm_FC18.xyz, SHU_220623_Cm_FC19.xyz, SHU_220623_Cc_FC20.xyz, SHU_220623_Cm_N21.xyz, SHU_220623_Cc_N22.xyz, SHU_220623_Cm_FC23.xyz, SHU_220623_Cc_FC24.xyz, SHU_220623_Cc_FC25.xyz, SHU_220623_Cc_N26.xyz, and SouthHutchinson_20220623_decisionPoints.csv 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: columnar text, comma-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-P9L8Z7C7/data/SouthHutchinson_20220623.zip Fees: None Metadata_Reference_Information: Metadata_Date: 20250117 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 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 Metadata_Access_Constraints: None Metadata_Use_Constraints: None