Metadata:
  Identification_Information:
    Citation:
      Citation_Information:
        Originator: Emma S. Chestang
        Originator: Christopher G. Smith
        Publication_Date: 20260422
        Title: Basic Hydrodynamic Parameters (Pressure, Temperature, and Conductivity) From Marine Groundwater Wells Along the West Florida Shelf Collected From November 2022 to March 2024 Associated with Field Activity Number 2022-340-FA
        Geospatial_Data_Presentation_Form: tabular digital data
        Larger_Work_Citation:
          Citation_Information:
            Originator: Emma S. Chestang
            Originator: Christopher G. Smith
            Originator: Angela Knapp
            Originator: Kristen Buck
            Originator: Tim Conway
            Originator: Joseph J. Tamborski
            Originator: Hannah Hunt
            Originator: Dreux Chappell
            Originator: Rene Boiteau
            Originator: Andrew Lindgren
            Originator: Salvatore Caprara
            Publication_Date: 20260422
            Title: Basic Hydrodynamic Parameters (Pressure, Temperature, and Conductivity) From Marine Groundwater Wells Along the West Florida Shelf Collected From November 2022 to March 2024 Associated with Field Activity Number 2022-340-FA
            Series_Information:
              Series_Name: U.S. Geological Survey data release
              Issue_Identification: doi:10.5066/P13X6MBL
            Publication_Information:
              Publication_Place: St. Petersburg, Florida
              Publisher: U.S. Geological Survey
            Online_Linkage: https://doi.org/10.5066/P13X6MBL
    Description:
      Abstract: This dataset contains level, temperature, and conductivity data collected by scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) to investigate submarine groundwater discharge on the West Florida Shelf at sample sites located in three areas of Florida: Indian Rocks Beach (IRB), Nature Coast near Hudson (NC), and Venice Headlands near Venice (VH). These data were collected using Solinst LTC 5 (serial number starting with 108) and LTC Edge (serial number starting with 107) leveloggers deployed in offshore groundwater wells on the West Florida Shelf. The dataset is a time series of submarine groundwater discharge parameters including water temperature (degrees Celsius [°C]), pressure (centimeters of water [cmH2O]), and conductivity (millisiemens per centimeter [mS/cm]). Each parameter was measured every fifteen to twenty minutes (varies by logger) for 24-hour time periods throughout the duration of deployment. Data included in this data release correspond to USGS Field Activity Number (FAN) 2022-340-FA, with associated events spanning over one year (November 2022 to February 2024) and are distinguished by alternative FANs (altFANs) or events of 22WFS05, 23WFS01, 23WFS02, 23WFS03, 23WFS04, 24WFS01.
      Purpose: This dataset was acquired to assist USGS staff with the quantification, analysis and interpretation of geochemical time series data that will ultimately be used in assessments and research of or related to submarine groundwater discharge.
      Supplemental_Information: All sampling activities correspond to the USGS Field Activity Number 2022-340-FA. Additional survey and data details are available from the USGS Coastal and Marine Geoscience Data System (CMGDS) at https://cmgds.marine.usgs.gov/services/activity.php?fan=2022-340-FA.
    Time_Period_of_Content:
      Time_Period_Information:
        Range_of_Dates/Times:
          Beginning_Date: 20221115
          Ending_Date: 20240307
      Currentness_Reference: ground condition
    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: As needed
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -82.8779
        East_Bounding_Coordinate: -82.4648
        North_Bounding_Coordinate: 28.3777
        South_Bounding_Coordinate: 27.0895
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: USGS Metadata Identifier
        Theme_Keyword: USGS:f3e01ad3-232f-44b6-83b9-414989b0733a
      Theme:
        Theme_Keyword_Thesaurus: ISO 19115 Topic Category
        Theme_Keyword: geoscientificInformation
        Theme_Keyword: environment
        Theme_Keyword: oceans
      Theme:
        Theme_Keyword_Thesaurus: USGS Thesaurus
        Theme_Keyword: geochemistry
        Theme_Keyword: time series analysis
        Theme_Keyword: marine geology
        Theme_Keyword: water temperature
        Theme_Keyword: salinity
      Theme:
        Theme_Keyword_Thesaurus: None
        Theme_Keyword: conductivity
        Theme_Keyword: pressure
      Place:
        Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
        Place_Keyword: State of Florida
        Place_Keyword: Gulf of America
      Place:
        Place_Keyword_Thesaurus: None
        Place_Keyword: Gulf of Mexico
      Stratum:
        Stratum_Keyword_Thesaurus: None
        Stratum_Keyword: seafloor
      Temporal:
        Temporal_Keyword_Thesaurus: None
        Temporal_Keyword: November 2022
        Temporal_Keyword: January 2023
        Temporal_Keyword: February 2023
        Temporal_Keyword: May 2023
        Temporal_Keyword: June 2023
        Temporal_Keyword: September 2023
        Temporal_Keyword: December 2023
        Temporal_Keyword: February 2024
        Temporal_Keyword: March 2024
    Access_Constraints: No access constraints. Please see 'Distribution Information' for details. 
    Use_Constraints: These data are marked with a Creative Commons 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_Person_Primary:
          Contact_Person: Christopher G. Smith
          Contact_Organization: U.S. Geological Survey
        Contact_Position: Research Geologist
        Contact_Address:
          Address_Type: mailing and physical
          Address: 600 4th Street South
          City: St. Petersburg
          State_or_Province: FL
          Postal_Code: 33701
          Country: US
        Contact_Voice_Telephone: 727-502-8035
        Contact_Electronic_Mail_Address: cgsmith@usgs.gov
    Data_Set_Credit: The National Science Foundation (National Science Foundation Grant Award OCE-2148989, Project 880516) and USGS Coastal Marine Hazards and Resources Program (CMHRP) contributed funding and resources that enabled samples to be collected and analyzed.
    Native_Data_Set_Environment: Environment as of Metadata Creation: Microsoft Windows 11 Enterprise Version 23H2; Microsoft Excel Version 2402; Solinst Levelogger Software 5.
    Cross_Reference:
      Citation_Information:
        Originator: Chestang, E.S., Ellis, A.M., Smith, C.G., Knapp, A., Tamborski, J.J., and Lindgren, A.
        Publication_Date: 20250813
        Title: Short-lived Radium-isotope (Radium-223 and -224) Specific Activity for Samples Collected Between November 2022 and March 2024 Along the West Florida Shelf (Indian Rocks Beach, Nature Coast, and Venice Headland)
        Series_Information:
          Series_Name: U.S. Geological Survey data release
          Issue_Identification: doi:10.5066/P1ZIOFSX
        Online_Linkage: https://doi.org/10.5066/P1ZIOFSX
    Cross_Reference:
      Citation_Information:
        Originator: Smith, C.G., Cable, J.E., and Martin, J.B.
        Publication_Date: 20080331
        Title: Episodic High Intensity Mixing Events in a Subterranean Estuary: Effects of Tropical Cyclones
        Series_Information:
          Series_Name: Limnology and Oceanography
          Issue_Identification: Volume 53, Issue 2
        Online_Linkage: https://doi.org/10.4319/lo.2008.53.2.0666
    Cross_Reference:
      Citation_Information:
        Originator: Wagner, R.J., Boulger, R.W., Jr., Oblinger, C.J., and Smith, B.A.
        Publication_Date: 2006
        Title: Guidelines and Standard Procedures for Continuous Water-Quality Monitors: Station Operation, Record Computation, and Data Reporting
        Series_Information:
          Series_Name: U.S. Geological Survey Techniques and Methods
          Issue_Identification: doi:10.3133/tm1D3
        Online_Linkage: https://doi.org/10.3133/tm1D3
  Data_Quality_Information:
    Attribute_Accuracy:
      Attribute_Accuracy_Report: All data were checked for outliers and erroneous values. Outliers were corrected if possible, and any uncorrected values were not included data and flagged with the value -999. Any time stamps that have failed were removed from the dataset. Any blank data is marked with -999.
    Logical_Consistency_Report: Data were checked to ensure all values fall within the range of analysis for each sensor.
    Completeness_Report: Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
    Positional_Accuracy:
      Horizontal_Positional_Accuracy:
        Horizontal_Positional_Accuracy_Report: Accuracy was checked against global positioning system (GPS) values provided by the manufacturer. Garmin GPSMAP64st and Garmin GPSmap 60CSx FPSMAP60 accuracy, < 10 meters
      Vertical_Positional_Accuracy:
        Vertical_Positional_Accuracy_Report: Accuracy was checked against global positioning system (GPS) values provided by the manufacture. Garmin GPSMAP64st and Garmin GPSmap 60CSx FPSMAP60 accuracy, < 10 meters
    Lineage:
      Process_Step:
        Process_Description: Solinst Levelogger Description: The Solinst Levelogger measured water level (pressure above the sensor), temperature (at the sensor), and conductivity (at the sensor). The levelogger uses a Piezoresistive Silicon with Hastelloy Sensor for measurement of level; Platinum Resistance Temperature Detector (RTD) for measurement of water temperature; and 4-Electrode Platinum sensor for measurement of conductivity. The resolution for each parameter was 0.001% full scale [FS] to 0.0006% FS, 0.003 C, and  0.1 mS/cm), respectively. The logger was calibrated using a 12880 μS/cm conductivity solution prior to deployment. The logger was checked prior to each deployment using a 50000 μS/cm conductivity solution.
        Process_Date: 20221115
        Process_Contact:
          Contact_Information:
            Contact_Person_Primary:
              Contact_Person: Christopher G. Smith
              Contact_Organization: U.S. Geological Survey
            Contact_Position: Research Geologist
            Contact_Address:
              Address_Type: mailing and physical
              Address: 600 4th Street South
              City: St. Petersburg
              State_or_Province: Florida
              Postal_Code: 33701
              Country: USA
            Contact_Voice_Telephone: 727-502-8035
            Contact_Electronic_Mail_Address: cgsmith@usgs.gov
      Process_Step:
        Process_Description:
          Data Storage and Preprocessing: Solinst LTC Dataloggers were retrieved and deployed in correspondence with the Field Activity Number 2022-340-FA with alternative FANs 22WFS05, 23WFS01, 23WFS02, 23WFS03, 23WFS04, and 24WFS01 (Chestang and others, 2025). All loggers used in study were assessed for proper in air values (i.e., atmospheric pressure in cm of water, air temperature, and conductivity of air ~0 millisemens per centimeter) prior to first deployment in November 2022. Dataloggers or loggers, henceforth, were deployed and retrieved from submerged, marine wells by divers equipped with Self-Contained Underwater Breathing Aparatus (SCUBA). Previously deployed loggers were retrieved prior to sampling and newly deployed loggers were installed following sampling as described by Chestang and others (2025). Deployed loggers were programed using Solinst Levelogger Software 5 prior to each trip; retrieved loggers were returned to land and downloaded onto a field laptop using Solinst Levelogger Software 5 as .xle files and exported as a comma separated value (CSV) file. All original data are provided in the csv files provided in this data release.
        Process_Date: 20240307
        Process_Contact:
          Contact_Information:
            Contact_Person_Primary:
              Contact_Person: Christopher G. Smith
              Contact_Organization: U.S. Geological Survey
            Contact_Position: Research Geologist
            Contact_Address:
              Address_Type: mailing and physical
              Address: 600 4th Street South
              City: St. Petersburg
              State_or_Province: Florida
              Postal_Code: 33701
              Country: USA
            Contact_Voice_Telephone: 727-502-8035
            Contact_Electronic_Mail_Address: cgsmith@usgs.gov
      Process_Step:
        Process_Description: Advanced Data Processing: CSV files were imported into Microsoft Excel and data inspected for quality assurance and control reasons. Offsets (nearly instantaneous change exceeding factory parameter resolution), were compared to other sensor data and ancillary field observations (Chestang and others, 2025) and, when appropriate, were corrected using an constant offset (+/-) (Wagner and others, 2006; Smith and others, 2008). Oscillations were corrected using a ten point running mean for the duration of the observed instability (Wagner and others, 2006). Only Conductivity and temperature were processed using offset and smoothing; original data are included in the data release files for comparison. Water level or pressure remain unprocessed; unrealistic pressure data, identified as negative water levels, were replaced with no data values (-999). All original data values are provided.
        Process_Date: 20250801
        Process_Contact:
          Contact_Information:
            Contact_Person_Primary:
              Contact_Person: Christopher G. Smith
              Contact_Organization: U.S. Geological Survey
            Contact_Position: Research Geologist
            Contact_Address:
              Address_Type: mailing and physical
              Address: 600 4th Street South
              City: St. Petersburg
              State_or_Province: Florida
              Postal_Code: 33701
              Country: USA
            Contact_Voice_Telephone: 727-502-8035
            Contact_Electronic_Mail_Address: cgsmith@usgs.gov
  Entity_and_Attribute_Information:
    Overview_Description:
      Entity_and_Attribute_Overview: WFS_SGD_LTC.zip: Fifteen CSV files of time series data collected from Indian Rocks Beach, Hudson, and Venice (Florida), beginning in November 2022 and continuing through February-March 2024. The file names consist of the area abbreviation (IRB, NC, or VH) followed by an abbreviation for month and year that data collection began (N22=November 2022, F23=February 2023, M23=May 2023, S23=September 2023, and D23=December 2023). Spreadsheet contains: date, time, level, temperature, conductivity, and original data. Detailed attribute descriptions for these files are included data dictionary (LTC_Data_Dictionary.docx). These metadata are not complete without this file. All files are available for download in WFS_SGD_LTC.zip.
      Entity_and_Attribute_Detail_Citation: The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information.
  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: IRBN22.csv, IRBF23.csv, IRBM23.csv, IRBS23.csv, IRBD23.csv, NCN22.csv, NCF23.csv, NCM23.csv, NCS23.csv, NCD23.csv, VHN22.csv, VHF23.csv, VHM23.csv, VHS23.csv, VHD23.csv, LTC_Data_Dictionary.docx
    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: comma-delimited text, Microsoft Word format
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P13X6MBL/data/WFS_SGD_LTC.zip
      Fees: None
  Metadata_Reference_Information:
    Metadata_Date: 20260422
    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
