Michael Itzkin Justin J. Birchler 20250326 tabular digital data Michael Itzkin Margaret L. Palmsten Mark L. Buckley Justin J. Birchler 20250326 U.S. Geological Survey data release doi:10.5066/P1QIZ879 St. Petersburg, Florida U.S. Geological Survey – St. Petersburg Coastal and Marine Science Center https://doi.org/10.5066/P1QIZ879 Five Sentek® TriSCAN® moisture probes were installed at Madeira Beach, Florida, on January 25, 2023, to collect hourly observations of sediment moisture content, salinity, and temperature. The probes extend down 90 centimeters (cm) below the surface. The data file included in this data release contains the locations (easting, northing, and elevation) of the five probes, as well as the standard deviation in each measurement from the Global Positioning System (GPS) survey. For more information about the data obtained from the probes, please see the Moisture_Probe data and metadata files included in this data release. Provide data on internal dune sedimentological conditions relevant to coastal change following impacts from Hurricane Idalia at Madeira Beach, Florida. Following U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC) data management protocols, these data were assigned USGS field activity number (FAN), 2023-314-FA. Additional survey and data details are available on the Coastal and Marine Geoscience Data System (CMGDS) at https://cmgds.marine.usgs.gov/services/activity.php?fan=2023-314-FA. 20230125 ground condition Complete None planned -82.796906 -82.796869 27.796689 27.796649 USGS Metadata Identifier USGS:c8d02d83-ad08-435a-a1d1-bbfa5feb2a49 USGS Thesaurus GPS measurement marine geology coastal processes hazards ISO 19115 Topic Categories geoscientificInformation environment oceans None U.S. Geological Survey USGS St. Petersburg Coastal and Marine Science Center Coastal and Marine Hazards and Resources Program CMHRP SPCMSC Geographic Names Information System (GNIS) State of Florida Madeira Beach None 2023 No access constraints. Please see 'Distribution Information' for details. 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. Michael Itzkin U.S. Geological Survey – St. Petersburg Coastal and Marine Science Center Research Geologist mailing and physical

600 4th Street South

St. Petersburg FL 33701 USA 727-502-8131 mitzkin@usgs.gov Environment as of Metadata Creation: Microsoft Windows 11 Version 23H2 (Build 22631.4751); Microsoft Excel version 2402. Brown, J.A., Birchler, J.J., Thompson, D.M., Long, J.W., and Seymour, A.C. 20180314 5.0 U.S. Geological Survey data release doi:10.5066/F7T43S94 St. Petersburg, FL U.S. Geological Survey – St. Petersburg Coastal and Marine Science Center https://doi.org/10.5066/F7T43S94 No formal logical accuracy tests were conducted. Dataset is considered complete for the information presented, as described in the abstract. The horizontal accuracy of the post-processed kinematic GPS data is +/- 2 cm, based on the accuracy of the base station used to post-process the data. Data were collected in the North American Datum of 1983 (NAD83), Universal Transverse Mercator Zone 17 North (UTM zone 17N) coordinate system. The vertical accuracy of the post-processed kinematic GPS data is +/- 3 cm, based on the accuracy of the base station used to post-process the data. Data were collected in the North American Vertical Datum of 1988 (NAVD88) coordinate system. Moisture probe locations were determined using a HYPACK® real-time kinematic (RTK) GPS system by collecting continuous measurements for 1-minute each at each probe location. The mean and standard deviations of the measurements at each probe was also calculated. For more information on the GPS survey data collection and processing methods used, refer to Brown and others (2018). 20230125 Moisture_Probes_Location_Data.csv Michael Itzkin U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Research Geologist mailing and physical

600 4th Street South

St. Petersburg FL 33701 US 727-502-8131 mitzkin@usgs.gov Point Point 5 Universal Transverse Mercator 17 0.9996 -81.0 0.0 500000.0 0.0 coordinate pair 0.501 0.536 meters North American Datum 1983 Geodetic Reference System 80 6378137.000000 298.257222101 North American Vertical Datum 1988 0.001 meters Attribute values Moisture_Probes_Locations_Data.csv Comma-separated values (.csv) file of probe number, easting, northing, elevation, and the standard deviation (error) for each probe deployed at Madeira Beach, Florida starting on January 25, 2023. USGS Probe Number Labeled number of the deployed moisture probe. USGS Probe 1 TriSCAN® probe number 1. USGS Probe 2 TriSCAN® probe number 2. USGS Probe 3 TriSCAN® probe number 3. USGS Probe 4 TriSCAN® probe number 4. USGS Probe 5 TriSCAN® probe number 5. USGS Easting (m) Mean measured easting location of the moisture probe, in meters (NAD83 UTM zone 17N). USGS 322976.576 322980.312 meters 0.001 Northing (m) Mean measured northing location of the moisture probe, in meters (NAD83 UTM zone 17N). USGS 3075971.199 3075975.667 meters 0.001 Elevation (m) Mean measured surface elevation of the moisture probe, in meters (NAVD88). USGS 1.78 2.549 meters 0.001 Easting SD (m) Standard deviation in the measured easting location of the moisture probe, in meters. USGS 0.009 0.023 meters 0.001 Northing SD (m) Standard deviation in the measured northing location of the moisture probe, in meters. USGS 0.01 0.018 meters 0.001 Elevation SD (m) Standard deviation in the measured elevation of the moisture probe, in meters. USGS 0.002 0.004 meters 0.001 U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center USGS SPCMSC Data Management mailing and physical

600 4th Street South

St. Petersburg FL 33701 United States 727-502-8000 gs-g-spcmsc_data_inquiries@usgs.gov Moisture_Probe_Locations_Data.csv 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. comma-delimited text https://coastal.er.usgs.gov/data-release/doi-P1QIZ879/data/Moisture_Probes_Locations_Data.zip None 20250324 U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center USGS SPCMSC Data Management mailing and physical

600 4th Street South

Saint Petersburg FL 33701 Unites States 727-502-8000 gs-g-spcmsc_data_inquiries@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998