Identification_Information:
  Citation:
    Citation_Information:
      Originator: Breanna N. Williams
      Originator: Daniel J. Ciarletta
      Publication_Date: 20260422
      Title: Sediment Data From Cores Collected in 2025 at Midnight Pass, Florida
      Larger_Work_Citation:
        Citation_Information:
          Originator: Daniel J. Ciarletta
          Originator: Blake F. Smullen
          Originator: Breanna N. Williams
          Originator: Emily L. Johnson
          Originator: Nancy T. DeWitt
          Publication_Date: 20260422
          Title: Sediment Data From Cores Collected in 2025 at Midnight Pass, Florida
          Series_Information:
            Series_Name: U.S. Geological Survey data release
            Issue_Identification: doi:10.5066/P1CQ6QRR
          Publication_Information:
            Publication_Place: St. Petersburg, FL
            Publisher: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
          Online_Linkage: https://doi.org/10.5066/P1CQ6QRR
  Description:
    Abstract: In June 2025, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted sediment core sampling at Midnight Pass, an inlet between Siesta Key and Casey Key, Florida. This inlet was closed by mechanical action in 1983 and reopened by the passage of hurricanes Helene and Milton in 2024, reconnecting Little Sarasota Bay to the Gulf of America (Gulf of Mexico). A total of seven cores were collected, with approximate recovery lengths between 0.54 meters (m) and 1.05 m. The cores were collected using a mechanical post driver and 3-inch (7.62 centimeters [cm]) diameter aluminum barrels.
    Purpose: The data release associated with this metadata record serves as an archive of sediment cores collected in June 2025 from Midnight Pass (as part of USGS field activity number [FAN] 2024-330-FA). Sedimentologic data published in this data release includes descriptive core site information, core logs, composite core photographs, and grain size data which can be utilized to study the geomorphic evolution of Midnight Pass. Data acquisition and processing methods used are similar to those described in Bernier and others (2024).
    Supplemental_Information: Core data were collected as part of USGS FAN 2024-330-FA. This field activity began in December 2024 with an initial data collection along the Florida Gulf coast after the passage of hurricanes Helene and Milton. Since then, additional surveys have been completed, including the coring event at Midnight Pass in June 2025, detailed in this data release. Future surveys under this field activity are planned, with continued acquisition of subsurface geology from washovers associated with these hurricanes. 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=2024-330-FA.
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 20250625
    Currentness_Reference: ground condition
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -82.51233233
      East_Bounding_Coordinate: -82.5111425
      North_Bounding_Coordinate: 27.20944337
      South_Bounding_Coordinate: 27.20742305
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: USGS Metadata Identifier
      Theme_Keyword: USGS:cd72480c-1dc9-48b6-a150-955ed04d59ee
    Theme:
      Theme_Keyword_Thesaurus: ISO 19115 Topic Category
      Theme_Keyword: geoscientificInformation
      Theme_Keyword: location
    Theme:
      Theme_Keyword_Thesaurus: USGS Thesaurus
      Theme_Keyword: geology
      Theme_Keyword: sedimentology
      Theme_Keyword: unconsolidated deposits
      Theme_Keyword: field sampling
      Theme_Keyword: drilling and coring
      Theme_Keyword: grain-size analysis
      Theme_Keyword: core analysis
      Theme_Keyword: photography
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: mechanical post driver coring
      Theme_Keyword: U.S. Geological Survey
      Theme_Keyword: USGS
      Theme_Keyword: Coastal and Marine Hazards and Resources Program
      Theme_Keyword: CMHRP
      Theme_Keyword: St. Petersburg Coastal and Marine Science Center
      Theme_Keyword: SPCMSC
      Theme_Keyword: 2024-330-FA
    Place:
      Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
      Place_Keyword: State of Florida
      Place_Keyword: Sarasota County
      Place_Keyword: Siesta Key
      Place_Keyword: Casey Key 
      Place_Keyword: Gulf of America
      Place_Keyword: Little Sarasota Bay
      Place_Keyword: Midnight Pass (historical)
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Palmer Point Park
      Place_Keyword: Midnight Pass
      Place_Keyword: Gulf of Mexico
  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_Organization_Primary:
        Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
        Contact_Person: Daniel J. Ciarletta
      Contact_Position: Research Physical Scientist
      Contact_Address:
        Address_Type: Mailing and Physical
        Address: 600 4th Street South
        City: St. Petersburg
        State_or_Province: FL
        Postal_Code: 33701
      Contact_Voice_Telephone: 727-502-8000
      Contact_Electronic_Mail_Address: dciarletta@usgs.gov
  Data_Set_Credit: Funding and (or) support for this study were provided by the USGS Coastal and Marine Hazards and Resources Program.
  Native_Data_Set_Environment: Environment as of Metadata Creation: Microsoft® Windows® 11 Enterprise (version 23H2); GNU Image Manipulation Program (GIMP) version 2.10 software; Panorama Factory version 4.5 software; RockWare® LogPlot 8 software; Adobe Illustrator® 2025; GRADISTAT version 9; Phil Harvey’s ExifTool (version 12.30); Microsoft® Excel® for Microsoft 365 MSO (Version 2509).
  Cross_Reference:
    Citation_Information:
      Originator: Julie C. Bernier
      Originator: Cheyenne S. Everhart
      Originator: Daniel J. Ciarletta
      Originator: Nancy T. DeWitt
      Originator: Jennifer L. Miselis
      Publication_Date: 20240708
      Title: Sediment data from vibracores collected in 2021 from central Florida Gulf Coast barrier islands
      Series_Information:
        Series_Name: U.S. Geological Survey data release
        Issue_Identification: doi:10.5066/P14L5SVG
      Publication_Information:
        Publication_Place: St. Petersburg, FL
        Publisher: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
      Online_Linkage: https://doi.org/10.5066/P14L5SVG
  Cross_Reference:
    Citation_Information:
      Originator: Simon J. Blott
      Originator: Kenneth Pye
      Publication_Date: 20010928
      Title: GRADISTAT: A grain size distribution and statistics package for the analysis of unconsolidated sediments
      Edition: Version 8.0
      Series_Information:
        Series_Name: Earth Surface Processes and Landforms
        Issue_Identification: Volume 26, Issue 11
      Other_Citation_Details: Pages 1237-1248
      Online_Linkage: http://www.kpal.co.uk/gradistat.html
      Online_Linkage: https://doi.org/10.1002/esp.261
  Cross_Reference:
    Citation_Information:
      Originator: Robert L. Folk
      Originator: William C. Ward
      Publication_Date: 19570301
      Title: Brazos River bar: A study in the significance of grain size parameters
      Series_Information:
        Series_Name: Journal of Sedimentary Petrology
        Issue_Identification: Volume 27, No. 1
      Other_Citation_Details: Pages 3-26
      Online_Linkage: https://doi.org/10.1306/74D70646-2B21-11D7-8648000102C1865D
  Cross_Reference:
    Citation_Information:
      Originator: William C. Krumbein
      Publication_Date: 19340801
      Title: Size frequency distributions of sediments
      Series_Information:
        Series_Name: Journal of Sedimentary Petrology
        Issue_Identification: Volume 4, No. 2
      Other_Citation_Details: Pages 65-77
      Online_Linkage: https://doi.org/10.1306/D4268EB9-2B26-11D7-8648000102C1865D
  Cross_Reference:
    Citation_Information:
      Originator: Chester K. Wentworth
      Publication_Date: 1922
      Title: A scale of grade and class terms for clastic sediments
      Series_Information:
        Series_Name: Journal of Geology
        Issue_Identification: Volume 30, No. 5
      Other_Citation_Details: Pages 377-392
      Online_Linkage: https://www.jstor.org/stable/30063207
  Cross_Reference:
    Citation_Information:
      Originator: Robert L. Folk
      Publication_Date: 195407
      Title: The distinction between grain size and mineral composition in sedimentary-rock nomenclature
      Series_Information:
        Series_Name: Journal of Geology
        Issue_Identification: Volume 62, No. 4
      Other_Citation_Details: Pages 344-359
      Online_Linkage: https://doi.org/10.1086/626171
  Cross_Reference:
    Citation_Information:
      Originator: Phil Harvey
      Publication_Date: 20210814
      Title: ExifTool by Phil Harvey
      Edition: 12.30
      Online_Linkage: https://exiftool.org/
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: No formal attribute accuracy tests were conducted.
  Logical_Consistency_Report: No formal logical accuracy tests were conducted.
  Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report: Position and elevation associated with each core site was determined by Differential Global Positioning System (DGPS) Real-time Kinematic (RTK) corrections using Trimble© SPS986 and Leica© Viva GS16 Global Navigation Satellite System (GNSS) receivers. Horizontal and vertical accuracies were in the sub-centimeter range. Horizontal positions are referenced to the World Geodetic System of 1984 (WGS84) coordinate system.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report: Position and elevation associated with each core site was determined by DGPS RTK corrections using Trimble© SPS986 and Leica© Viva GS16 GNSS receivers. Horizontal and vertical accuracies were in the sub-centimeter range. Vertical positions (elevation) are referenced to the North American Vertical Datum of 1988 (NAVD88) coordinate system, using the GEOID18 model.
  Lineage:
    Process_Step:
      Process_Description: Cores were collected using a Skidril© G2XD-4 mechanical post driver. The aluminum core barrel was fitted to the post driver using an 8.25 cm adapter, and the core barrel was driven into the subsurface until refusal, or full penetration of barrel. Measurements were taken on the inside and outside of the core barrel prior to extraction to determine the amount of compaction, which is the difference between the recovered core length and the total depth the core barrel penetrated below the sediment surface. After extraction, each core was capped, sealed, and labeled with the core number and orientation. All cores were transported to the SPCMSC sediment laboratory for processing and analysis. Core collection information was compiled into a comma-separated values file (.csv), and is included in the data download zip file, 2024-330-FA_MP_CoreSites.zip of this data release. 
      Process_Date: 20250625
      Source_Produced_Citation_Abbreviation: 2024-330-FA_MP_CoreSites.csv
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Daniel J. Ciarletta
            Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
          Contact_Position: Research Physical Scientist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 600 4th Street South
            City: St. Petersburg
            State_or_Province: FL
            Postal_Code: 33701
          Contact_Voice_Telephone: (727) 502-8000
          Contact_Electronic_Mail_Address: dciarletta@usgs.gov
    Process_Step:
      Process_Description: Core processing and photographing: At the SPCMSC sediment laboratory, the cores were split lengthwise and photographed. The split cores were photographed in approximately 20- to 25-cm, overlapping segments with a Nikon© D80 digital camera with a 70-millimeter (mm) zoom lens using consistent (manually programmed) settings with autofocus from a fixed height. The raw images were white-balanced using GNU Image Manipulation Program (GIMP) version 2.10 software, cropped to the same extent (to remove areas outside of the core barrel), and "stitched" together using The Panorama Factory version 4.5 software, providing seamless high-resolution whole-core Joint Photographic Experts Group (JPEG, .jpg) images. Lithologic descriptions for the core logs are based on macroscopic observations. Sediment color is based on the Munsell soil color system (https://munsell.com/color-products/color-communications-products/environmental-color-communication/munsell-soil-color-charts/). Descriptive core logs for the seven cores were compiled using RockWare® LogPlot 8 software, edited in Adobe Illustrator, and exported as JPEG images. The filenames for each core photo are as follows: survey location name ('MP', for Midnight Pass), followed by a number for the transect (2 or 3, where 2 is north of the inlet and 3 is south), a dash, and then letter for the core site (B, D, E, F, or G). Example: MP2-D.jpg. The core logs follow the same naming convention as the core photos, with the addition of the FAN and a dash at the beginning (example: 2024-330-FA-MP2-D.jpg). These images are available in their respective data download zip file, 2024-330-FA_MP_CorePhotos.zip and 2024-330-FA_MP_CoreLogs.zip.
      Process_Date: 2025
      Source_Produced_Citation_Abbreviation: MP2-D.jpg
      Source_Produced_Citation_Abbreviation: MP2-E.jpg
      Source_Produced_Citation_Abbreviation: MP2-F.jpg
      Source_Produced_Citation_Abbreviation: MP2-G.jpg
      Source_Produced_Citation_Abbreviation: MP3-B.jpg
      Source_Produced_Citation_Abbreviation: MP3-D.jpg
      Source_Produced_Citation_Abbreviation: MP3-E.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP2-D.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP2-E.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP2-F.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP2-G.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP3-B.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP3-D.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP3-E.jpg
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Daniel J. Ciarletta
            Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
          Contact_Position: Research Physical Scientist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 600 4th Street South
            City: St. Petersburg
            State_or_Province: FL
            Postal_Code: 33701
          Contact_Voice_Telephone: (727) 502-8000
          Contact_Electronic_Mail_Address: dciarletta@usgs.gov
    Process_Step:
      Process_Description: Grain-size processing: The raw grain-size data was run through the free software GRADISTAT version 9, (Blott and Pye, 2001), which calculates the mean, sorting, skewness and kurtosis of each sample geometrically, in metric units, and logarithmically, in phi (Φ) units (Krumbein, 1934), using the Folk and Ward (1957) scale. GRADISTAT also reports the descriptive sediment texture after Folk (1954) and calculates the fraction of sediment from each sample by size category (for example, mud, coarse sand, fine gravel) based on a modified Wentworth (1922) size scale. The results for all samples, including multiple samples derived from selected intervals for quality control purposes, are included as a tab in a Microsoft Excel workbook (2024-330-FA_MP_GrainSizeStats.xlsx) and as a comma-separated values (2024-330-FA_MP_SieveStats.csv) data file.
      Process_Date: 2026
      Source_Produced_Citation_Abbreviation: 2024-330-FA_MP_GrainSizeStats.xlsx
      Source_Produced_Citation_Abbreviation: 2024-330-FA_MP_SieveStats.csv
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Daniel J. Ciarletta
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Research Physical Scientist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 600 4th Street South
            City: St. Petersburg
            State_or_Province: FL
            Postal_Code: 33701
          Contact_Voice_Telephone: (727) 502-8068
          Contact_Electronic_Mail_Address: dciarletta@usgs.gov
    Process_Step:
      Process_Description: Grain-size sieve analysis: Sediment samples were analyzed by dry sieving. The sediment was passed through a stack of sieves with progressively smaller openings using the assistance of a mechanical sieve shaker to determine grain-size distribution. U.S. standard sieves numbers 230 (63 micrometers [µm]), 120 (125 µm), 60 (250 µm), 35 (500 µm), 18 (1 millimeters [mm]), 10 (2 mm), 5 (4 mm), and 5/16" (8 mm) were used, which meet the ASTM E11 standard specifications for determining particle size using woven-wire test sieves. All dry-sieve data was reported as a percent fraction of the total bulk dry weight of each sample subset. The results for all samples are included as a tab in an Excel workbook (2024-330-FA_MP_GrainSizeStats.xlsx) and as a comma-separated values (2024-330-FA_MP_SieveStats.csv) data file.
      Process_Date: 2026
      Source_Produced_Citation_Abbreviation: 2024-330-FA_MP_GrainSizeStats.xlsx
      Source_Produced_Citation_Abbreviation: 2024-330-FA_MP_SieveStats.csv
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Daniel J. Ciarletta
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Research Physical Scientist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 600 4th Street South
            City: St. Petersburg
            State_or_Province: FL
            Postal_Code: 33701
          Contact_Voice_Telephone: (727) 502-8068
          Contact_Electronic_Mail_Address: dciarletta@usgs.gov
    Process_Step:
      Process_Description: Populating image headers: Additional metadata were added to the exchangeable image file format (EXIF) header of each image using Phil Harvey’s ExifTool version 12.30 (Harvey, 2021). The image headers were populated individually for each of the seven core photos and seven core logs. The information in the scripts were the same among all images, aside from the EXIF:ImageDescription, EXIF:GPSLatitude, and EXIF:GPSLongtitude information, as that information varied for each core. The EXIF:ImageDescription and IPTC:Keywords information varies between the core photos and core logs as well. An example script for core photo MP3-E.jpg is provided below.
        First, the following command was run on all images in a folder to preserve filenames:
        exiftool -P "-XMP:PreservedFileName<Filename" *.JPG.

        Second, the following command was run for core photo MP3-E.jpg:
        exiftool -IPTC:Credit="U.S. Geological Survey" -IPTC:Contact="gs-g-spcmsc_data_inquiries@usgs.gov" -EXIF:Copyright="Public Domain" -XMP:UsageTerms="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." -EXIF:ImageDescription="https://cmgds.marine.usgs.gov/services/activity.php?fan=2024-330-FA; Photograph of core MP3-E collected at Midnight Pass, between Siesta Key and Casey Key, Florida, from USGS field activity 2024-330-FA." -XMP:AttributionURL="https://doi.org/10.5066/P1CQ6QRR" -EXIF:GPSAreaInformation="Trimble SPS986 and Leica GS16 RTK (Real-time Kinematic), cm-accuracy" -XMP:ExternalMetadataLink="https://www1.usgs.gov/pir/api/identifiers/USGS:cd72480c-1dc9-48b6-a150-955ed04d59ee" -EXIF:GPSMapDatum="EPSG:4326 (WGS 84)" -EXIF:Artist="Daniel Ciarletta (USGS) & Blake Smullen (Contractor to the USGS)" -EXIF:Make="Nikon" -EXIF:Model="D80" -EXIF:GPSLatitude="27.20765771" -EXIF:GPSLatitudeRef="N" -EXIF:GPSLongitudeRef="W" -EXIF:GPSLongitude="-82.5111425" -sep ";" -IPTC:Keywords="drilling and coring, unconsolidated deposits, field sampling" -overwrite_original -P MP3-E.jpg

        Third, the following command run on all images in a folder to copy information into duplicate tags: 
        exiftool -P "-XMP-photoshop:Credit<IPTC:Credit" "-XMP-iptcCore:CreatorWorkEmail<IPTC:Contact" "-XMP-dc:Rights<EXIF:Copyright" "-XMP-dc:Description<EXIF:ImageDescription" "-XMP-exif:all" "-XMP-photoshop:DateCreated<EXIF:DateTimeOriginal" -overwrite_original *.JPG

        To extract the information from the image headers using ExifTool, run the following command after connecting to the unzipped folder containing the images:
        exiftool -n -csv *.jpg > allheaders.csv
      Process_Date: 20260206
      Source_Produced_Citation_Abbreviation: MP2-D.jpg
      Source_Produced_Citation_Abbreviation: MP2-E.jpg
      Source_Produced_Citation_Abbreviation: MP2-F.jpg
      Source_Produced_Citation_Abbreviation: MP2-G.jpg
      Source_Produced_Citation_Abbreviation: MP3-B.jpg
      Source_Produced_Citation_Abbreviation: MP3-D.jpg
      Source_Produced_Citation_Abbreviation: MP3-E.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP2-D.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP2-E.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP2-F.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP2-G.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP3-B.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP3-D.jpg
      Source_Produced_Citation_Abbreviation: 2024-330-FA-MP3-E.jpg
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Breanna N. Williams
            Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
          Contact_Position: Geographer
          Contact_Address:
            Address_Type: mailing and physical
            Address: 600 4th Street South
            City: St. Petersburg
            State_or_Province: FL
            Postal_Code: 33701
            Country: United States
          Contact_Voice_Telephone: 727-502-8000
          Contact_Electronic_Mail_Address: bnwilliams@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: Entity Point
      Point_and_Vector_Object_Count: 7
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Geographic:
      Latitude_Resolution: 0.0197864699
      Longitude_Resolution: 0.0228595953
      Geographic_Coordinate_Units: Decimal degrees
    Geodetic_Model:
      Horizontal_Datum_Name: D_WGS_1984
      Ellipsoid_Name: WGS_1984
      Semi-major_Axis: 6378137.0
      Denominator_of_Flattening_Ratio: 298.257223563
  Vertical_Coordinate_System_Definition:
    Altitude_System_Definition:
      Altitude_Datum_Name: North American Vertical Datum 1988
      Altitude_Resolution: 0.001
      Altitude_Distance_Units: meter
      Altitude_Encoding_Method: Attribute values
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: 2024-330-FA_MP_CoreSites.csv
      Entity_Type_Definition: Comma-separated values (.csv) file of the site locations and core collection information for the seven cores collected at Midnight Pass, on June 25, 2025.
      Entity_Type_Definition_Source: USGS
    Attribute:
      Attribute_Label: Core ID
      Attribute_Definition: Identifier generated for the core.
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Unrepresentable_Domain: Alphanumeric string containing the FAN (2024-330-FA), followed by a dash, and the alternate core identifier. Example: 2024-330-FA-MP2-D.
    Attribute:
      Attribute_Label: Field Activity Number
      Attribute_Definition: USGS field activity number generated for the survey.
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 2024-330-FA
          Enumerated_Domain_Value_Definition: The USGS field activity number for the data collection is 2024-330-FA.
          Enumerated_Domain_Value_Definition_Source: USGS
    Attribute:
      Attribute_Label: Alternate Core ID
      Attribute_Definition: Alternate identifier generated for the core.
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Unrepresentable_Domain: Alphanumeric string containing the survey location name ('MP', for Midnight Pass), followed by a number for the transect (2 or 3, where 2 is north of the inlet and 3 is south), a dash, and then letter for the core site (B, D, E, F, or G). Example: MP2-D.jpg.
    Attribute:
      Attribute_Label: Date Collected
      Attribute_Definition: Date the core was collected, written as M/DD/YYYY (Month, Day, Year).
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6/25/2025
          Range_Domain_Maximum: 6/25/2025
    Attribute:
      Attribute_Label: Latitude (DD)
      Attribute_Definition: Latitude of core collection, in decimal degrees, relative to WGS84.
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 27.20742305
          Range_Domain_Maximum: 27.20944337
          Attribute_Units_of_Measure: Decimal degrees
    Attribute:
      Attribute_Label: Longitude (DD)
      Attribute_Definition: Longitude of core collection, in decimal degrees, relative to WGS84.
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -82.51233233
          Range_Domain_Maximum: -82.5111425
          Attribute_Units_of_Measure: Decimal degrees
    Attribute:
      Attribute_Label: Sampling Device
      Attribute_Definition: Type of core sampling device used to collect the sediment material at Midnight Pass.
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Mechanical Post Driver
          Enumerated_Domain_Value_Definition: The core was collected using a mechanical post driver made by Skidril Industries, LLC©.
          Enumerated_Domain_Value_Definition_Source: USGS
    Attribute:
      Attribute_Label: Elevation (m NAVD88)
      Attribute_Definition: The elevation of each site recorded in meters (m) relative to NAVD88.
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.505
          Range_Domain_Maximum: 1.507
          Attribute_Units_of_Measure: meters
    Attribute:
      Attribute_Label: Penetration (cm)
      Attribute_Definition: Penetration made by the coring device at Midnight Pass, in centimeters (cm).
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 94
          Range_Domain_Maximum: 130.5
          Attribute_Units_of_Measure: centimeters
    Attribute:
      Attribute_Label: Loss (cm)
      Attribute_Definition: Sediment lost from the core barrel during recovery, used in calculating compaction of the sediment remaining in the barrel (cm).
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6
          Range_Domain_Maximum: 49.5
          Attribute_Units_of_Measure: centimeters
    Attribute:
      Attribute_Label: Field Estimated Core Length (cm)
      Attribute_Definition: Core length estimated in the field, in centimeters (cm).
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 53.5
          Range_Domain_Maximum: 106
          Attribute_Units_of_Measure: centimeters
    Attribute:
      Attribute_Label: Actual Length (cm)
      Attribute_Definition: Actual measured length of the core, in centimeters (cm).
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 54
          Range_Domain_Maximum: 105.5
          Attribute_Units_of_Measure: centimeters
    Attribute:
      Attribute_Label: Coring Compaction (cm)
      Attribute_Definition: Calculated compaction of sediment remaining in barrel, in centimeters (cm), from coring compaction multiplied by actual core length.
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4.77
          Range_Domain_Maximum: 15.58
          Attribute_Units_of_Measure: centimeters
    Attribute:
      Attribute_Label: Coring Compaction (%)
      Attribute_Definition: Percentage of compaction of actual core (One minus the core loss plus actual length [cm] divided by penetration [cm], then multiplied by 100).
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5.84%
          Range_Domain_Maximum: 23.72%
          Attribute_Units_of_Measure: percent
    Attribute:
      Attribute_Label: Core Diameter (cm)
      Attribute_Definition: Diameter of coring device used, in centimeters (cm).
      Attribute_Definition_Source: USGS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 7.62
          Range_Domain_Maximum: 7.62
          Attribute_Units_of_Measure: centimeters
  Overview_Description:
    Entity_and_Attribute_Overview: 2024-330-FA_MP_GrainSizeData.zip: Summary grain-size data for core samples. Files are provided in Microsoft Excel (.xlsx) and comma-separated values (.csv) formats (2024-330-FA_MP_SieveStats.csv, 2024-330-FA_MP_GrainSizeStats.xlsx). For full entity and attribute details, please refer to the accompanying data dictionary, 2024-330-FA_GrainSize_DataDictionary.docx. The 2024-330-FA_GrainSizeStats.xlsx file contains a copy of the data dictionary as well as the summary grain-size data, separated by tabs. These metadata are not complete without the data dictionary file.
    Entity_and_Attribute_Overview: 2024-330-FA_MP_CorePhotos.zip and 2024-330-FA_CoreLogs.zip JPEG images containing high-resolution photos and descriptive logs for each core. Additional metadata were added to the EXIF and other imagery headers of each core photo and core log image using Phil Harvey’s ExifTool. Please view the imagery headers within each file for more information.
    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: 2024-330_FA_MP_CoreSites.csv, MP2-D.jpg, MP2-E.jpg, MP2-F.jpg, MP2-G.jpg, MP3-B.jpg, MP3-D.jpg, MP3-E.jpg, 2024-330-FA-MP2-D.jpg, 2024-330-FA-MP2-E.jpg, 2024-330-FA-MP2-F.jpg, 2024-330-FA-MP2-G.jpg, 2024-330-FA-MP3-B.jpg, 2024-330-FA-MP3-D.jpg, 2024-330-FA-MP3-E.jpg, 2024-330-FA_MP_SieveStats.csv, 2024-330-FA_MP_GrainSizeStats.xlsx, 2024-330-FA_GrainSize_DataDictionary.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 Excel format, JPEG, Microsoft Word format
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P1CQ6QRR/data/2024-330-FA_MP_CoreSites.zip 
              Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P1CQ6QRR/data/2024-330-FA_MP_CorePhotos.zip
              Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P1CQ6QRR/data/2024-330-FA_MP_CoreLogs.zip
              Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P1CQ6QRR/data/2024-330-FA_MP_GrainSizeData.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
