Sediment Sample Locations Collected in August 2015 from Dauphin Island and the surrounding areas

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

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

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