Metadata: Identification_Information: Citation: Citation_Information: Originator: Alisha M. Ellis Originator: Marci E. Marot Originator: Christopher G. Smith Originator: Cathryn J. Wheaton Publication_Date: 20170410 Title: Sediment Sample Locations Collected in August 2015 from Dauphin Island and the surrounding areas Geospatial_Data_Presentation_Form: Tabular digital data Series_Information: Series_Name: U.S. Geological Survey Data Series Issue_Identification: DS1046 Online_Linkage: https://pubs.usgs.gov/ds/1046/data/15BIM09-DA-Site_Information.xlsx.zip Larger_Work_Citation: Citation_Information: Originator: Alisha M. Ellis Originator: Marci E. Marot Originator: Christopher G. Smith Originator: Cathryn J. Wheaton Publication_Date: 20170410 Title: The Physical Characteristics of the Sediments on and Surrounding Dauphin Island, Alabama Edition: 1.0 Geospatial_Data_Presentation_Form: multimedia presentation Series_Information: Series_Name: U.S. Geological Survey Data Series Issue_Identification: DS1046 Publication_Information: Publication_Place: St. Petersburg, Florida Publisher: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Online_Linkage: https://doi.org/10.3133/ds1046 Description: Abstract: Scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center collected 303 surface sediment samples from Dauphin Island, Alabama, and the surrounding water bodies in August 2015. These sediments were processed to determine physical characteristics such as organic content, bulk density, and grain-size. The environments where the sediments were collected include high and low salt marshes, over-wash deposits, dunes, beaches, sheltered bays, and open water. Sampling by the USGS was part of a larger study to assess the feasibility and sustainability of proposed restoration efforts for Dauphin Island, Alabama, and assess the island's resilience to rising sea level and storm events. The data presented in this publication can be used by modelers to attempt validation of hindcast models and create predictive forecast models for both baseline conditions and storms. This study was funded by the National Fish and Wildlife Foundation, via the Gulf Environmental Benefit Fund. This report serves as an archive for sedimentological data derived from surface sediments. Downloadable data are available as Excel spreadsheets, JPEG files, and formal Federal Geographic Data Committee metadata (data downloads). Purpose: The file Site Information.xlsx.zip includes all site information for each land and water surface sample collected during the August 2015 sampling trip by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center. Surface samples were collected on land from salt marsh, overwash, beach, and dune sites (denoted with an “S” at the end of the sample identification (ID) number) by carefully removing the top 1 centimeter (cm) of the surface sediment from the land. During the same time period, grab samples (denoted with a “G”) were collected by two research vessels (R/V), one using a petit Ponar and the other using a miniature Sea Bed Observation and Sampling System (miniSEABOSS) equipped with a VanVeen sediment sampler, video cameras, lights, and a handheld Castaway-CTD. Supplemental_Information: At all sites, coordinates were obtained by either commercially available hand-held Global Positioning System (GPS) or boat mounted chart plotters. The terrestrial sampling locations field setup consisted of a rover GPS unit used to collect data at each sample site, and two base stations. Base stations were established approximately 11 kilometers (km) apart to ensure coverage throughout the island. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20150812 Ending_Date: 20150820 Currentness_Reference: Ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -88.34300 East_Bounding_Coordinate: -88.04000 North_Bounding_Coordinate: 30.30000 South_Bounding_Coordinate: 30.17000 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:ce140a3d-6f51-4f03-a276-0748e8e9f753 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: biota Theme_Keyword: oceans Theme_Keyword: geoscientific information Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: unconsolidated deposits Theme_Keyword: geology Theme_Keyword: geomorphology Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Dauphin Island Theme_Keyword: sediment Theme_Keyword: surface Theme_Keyword: sampling date Theme_Keyword: latitude Theme_Keyword: longitude Theme_Keyword: easting Theme_Keyword: northing Theme_Keyword: elevation Theme_Keyword: water depth Theme_Keyword: environment Theme_Keyword: Gulf of Mexico Theme_Keyword: Pelican Bay Theme_Keyword: Mississippi Sound Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: U.S. Geological Survey St. Petersburg Coastal and Marine Science Center Theme_Keyword: Barrier Island Mapping Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Dauphin Island Place_Keyword: Pelican Bay Place_Keyword: Mississippi Sound Place: Place_Keyword_Thesaurus: Common Geographic Areas Place_Keyword: Alabama Place_Keyword: Gulf of Mexico Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: sediment Stratum_Keyword: surface Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: August 2015 Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests that it be acknowledged as the originator of this dataset in any future products or research derived from these data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alisha M. Ellis Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: aellis@usgs.gov Data_Set_Credit: U.S. Geological Survey, Coastal and Marine Geology Program, St. Petersburg Coastal and Marine Science Center Native_Data_Set_Environment: Apple OS X El Capitan Version 10.11.6; Microsoft Excel for Mac 2016 Version 15.22 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The positional accuracy of the sample locations is determined by the accuracy of the raw position data recorded by the GPS antenna, in the World Geodectic System of 1984 (WGS84) datum, during data collection. DGPS coordinates were obtained using post-processing software packages (National Geodetic Survey On-Line Positioning User Service, OPUS, and Novatel Waypoint Product Group GrafNav). Logical_Consistency_Report: No formal logical accuracy tests were conducted. Completeness_Report: This dataset includes the locations of surface and grab samples from Dauphin Island, Alabama collected in August 2015. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Horizontal_Positional_Accuracy_Report: All static GPS base station sessions were processed through the On-Line Positioning User Service (OPUS) maintained by the National Geodetic Survey (NGS). The OPUS base-station solutions were entered into a spreadsheet to compute a final, time-weighted positional coordinate (latitude, longitude, and ellipsoid height) for each base station. Base-station positional error was calculated as the absolute value of the final position minus the session position value. The maximum horizontal error of the base station coordinates used for post-processing the sample locations was 0.00005 seconds latitude and 0.00015 seconds longitude. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Vertical_Positional_Accuracy_Report: All static GPS base station sessions were processed through OPUS. The OPUS base-station solutions were entered into a spreadsheet to compute a final, time-weighted positional coordinate (latitude, longitude, and ellipsoid height) for each base station. Base-station positional error for each GPS session was calculated as the absolute value of the final position minus the session position value. For this survey, the maximum standard deviation of the base station ellipsoid height was 0.009 m and the maximum vertical error for the base station was +/- 0.016 m. The time-weighted average positions were compared with the NPS network control numbers for each base station; the time-weighted elevations for each base station occupation were within 2 standard deviations of the NPS control elevations. The NPS control coordinates were used for subsequent post processing. Lineage: Process_Step: Process_Description: Latitude, longitude, and elevation data for each land surface site were recorded using a differential GPS (DGPS) and were constrained by post-processed differential corrections using a base station-to-rover setup. Field setup consisted of a rover GPS unit used to collect data at each sample site, and two base stations. Each base station consisted of a Thales choke-ring antenna, tripod, and Ashtech Z-Xtreme receiver, sampling at 1 hertz (Hz). The first base station was located at National Geodetic Survey (NGS) published reference point, permanent identification number (PID#) BH1755 (Station Identification (ID): 8735180; http://tidesandcurrents.noaa.gov/benchmarks.html?id=8735180), located on the eastern side of the Island. The second base station was set up on a study specific benchmark established on the western side of the island within the city public access parking lot during the August sampling trip and will be referred to as Dauphin Island West End (DIWE). The rover unit used a similar configuration as the bases: an Ashtech Z-Xtreme receiver and geodetic antenna. Rover antenna height from the ground was measured and recorded at each site and each site was occupied for a minimum of 30 minutes. Process_Date: 2015 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Nicholas Zaremba Contact_Position: Researcher IV Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: nzaremba@usgs.gov Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20201013 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@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: 303 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 16N Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: 87.0 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: 0.001 Ordinate_Resolution: 0.001 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: WGS84 Ellipsoid_Name: WGS84 Semi-major_Axis: 6378145 Denominator_of_Flattening_Ratio: 298.257222101 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Resolution: 0.001 Altitude_Distance_Units: Meters Altitude_Encoding_Method: Attribute values Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: 15BIM09-DA-Site_Information.xlsx.zip Entity_Type_Definition: Microsoft Excel workbook defining the location of each sediment sample site collected is August 2015 from Dauphin Island and the surrounding ares. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: Sample ID Attribute_Definition: Sample identification number Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string. Sample IDs listed within the table used the naming convention 15BIM09-DA-^^X. Where “15BIM09” indicates that it was the ninth field trip that falls into the category of Barrier Island Mapping during the year 2015, "DA" stands for Dauphin Island, “^^” is the site location number, and “X” is a place holder for "S" (land surface sample) or "G" (PONAR or VanVeen sediment grab sample). Attribute: Attribute_Label: Date Collected Attribute_Definition: Date sample was collected Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 8/12/15 Range_Domain_Maximum: 8/20/15 Attribute_Units_of_Measure: m/dd/yy Attribute_Measurement_Resolution: 1 day Attribute: Attribute_Label: Arrival Time Attribute_Definition: Time that workers arrived at the sample site in 24-hour clock format. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 8:36 Range_Domain_Maximum: 18:21 Attribute_Units_of_Measure: 24-hour clock format Attribute: Attribute_Label: Departure Time Attribute_Definition: Time that workers departed the sample site in 24-hour clock format. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 9:28 Range_Domain_Maximum: 18:25 Attribute_Units_of_Measure: 24-hour clock format Attribute: Attribute_Label: Latitude (WGS84) Attribute_Definition: Latitude of site location, in decimal degrees (WGS84) Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 30.17083 Range_Domain_Maximum: 30.30692 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00001 Attribute: Attribute_Label: Longitude (WGS84) Attribute_Definition: Longitude of site location, in decimal degrees (WGS84) Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -88.34267 Range_Domain_Maximum: -88.04046 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00001 Attribute: Attribute_Label: Elevation (NAVD88 G12A) (m) Attribute_Definition: Elevation (orthometric height) of site location, in meters (NAVD88, GEOID 12A) for land sites only. Blank cells indicate a water site. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0963 Range_Domain_Maximum: 4.2659 Attribute: Attribute_Label: Elevation Flag Attribute_Definition: Indicates confidence in elevation accuracy determined during calculation of the DGPS location. O indicates full confidence while J indicates a potential error due to satellite acquisition. Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string. Attribute: Attribute_Label: Garmin or Direct Measurement Water Depth (m) Attribute_Definition: The water depth, measured in meters, was measured by dropping a weighted a measuring tape into the water and recording the depth at which the weight hit the bottom (seafloor) or by a Garmin depth sounder. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 10.0 Attribute: Attribute_Label: Environment Type Attribute_Definition: The environment assigned to the sample site by the workers. Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string. Attribute: Attribute_Label: Vegetation Type Attribute_Definition: The vegetation found at/around the sample site location. Data only provided for land sites where vegetation was present and identifiable. Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string. Attribute: Attribute_Label: Sampling Equipment Attribute_Definition: The type of equipment used at the "G"/water sample site. Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alisha M. Ellis Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: aellis@usgs.gov Resource_Description: 15BIM09-DA-Site_Information.xlsx.zip Distribution_Liability: 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, or for general or scientific purposes, 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. Any use of trade, firm, or product name 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: Microsoft Excel Format_Version_Number: 2016 Format_Specification: .xlsx Format_Information_Content: This Microsoft Excel workbook contains site information for sediment samples collected on and around Dauphin Island, Alabama in August 2015 File_Decompression_Technique: unzip Transfer_Size: 0.042 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/ds/1046/data/15BIM09-DA-Site_Information.xlsx.zip Fees: None, if obtained online Technical_Prerequisites: This workbook was created using Microsoft Excel 2016 and can be opened using Microsoft Excel 2007 or higher; these data may also be viewed using the free Microsoft Excel Viewer (http://www.microsoft.com/). Metadata_Reference_Information: Metadata_Date: 20210923 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alisha M. Ellis Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: aellis@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: None Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None