Sediment Core Locations Collected in March 2012 from the Chandeleur Islands, Louisiana (U.S. Geological Survey Field Activity Number 12BIM01)

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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: Marci E. Marot
Publication_Date: 20170315
Title:

Sediment Core Locations Collected in March 2012 from the Chandeleur Islands, Louisiana (U.S. Geological Survey Field Activity Number 12BIM01)

Geospatial_Data_Presentation_Form: Tabular digital data
Larger_Work_Citation:

Citation_Information:

Originator: Marci E. Marot
Originator: Christopher G. Smith
Originator: C. Scott Adams
Originator: Kathyrn A. Richwine
Publication_Date: 20170315
Title:

Sediment Lithology and Radiochemistry from the Back-Barrier Environments Along the Chandeleur Islands, Louisiana: March 2012

Geospatial_Data_Presentation_Form: Multimedia presentation
Series_Information:

Series_Name: U.S. Geological Survey Data Series
Issue_Identification: 1045

Publication_Information:

Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.3133/ds1045

Description:

Abstract:

Scientists from the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center collected a set of sediment cores from the back-barrier environments along the Chandeleur Islands, Louisiana, in March 2012. The sampling efforts were part of a larger USGS study to evaluate effects on the geomorphology of the Chandeleur Islands following the construction of an artificial sand berm to reduce oil transport onto federally managed lands. The objective of this study was to evaluate the response of the back-barrier tidal and wetland environments to the berm. This report serves as an archive for sedimentological and radiochemical data derived from the sediment cores. The data described in this report is available for download.

Purpose:

The Site_Locations.xlsx file includes sampling date, core location coordinates and elevation for sampling sites occupied on the Chandeleur Islands, Louisiana in March 2012 by the USGS, St. Petersburg Coastal and Marine Science Center.

Supplemental_Information: None

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20120324
Ending_Date: 20120326

Currentness_Reference: Ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -88.836353
East_Bounding_Coordinate: -88.824796
North_Bounding_Coordinate: 29.969588
South_Bounding_Coordinate: 29.895421

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:a02953b8-d608-4f0b-9c3f-5d4d91d8de99

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: biota
Theme_Keyword: oceans

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geology
Theme_Keyword: geochemistry
Theme_Keyword: unconsolidated deposits

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: back-barrier
Theme_Keyword: estuaries
Theme_Keyword: wetland
Theme_Keyword: sediment
Theme_Keyword: latitude
Theme_Keyword: longitude
Theme_Keyword: easting
Theme_Keyword: northing
Theme_Keyword: elevation
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword:

U.S. Geological Survey St. Petersburg Coastal and Marine Science Center

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Louisiana
Place_Keyword: Gulf of Mexico
Place_Keyword: Chandeleur Islands

Stratum:

Stratum_Keyword_Thesaurus: None
Stratum_Keyword: sediment
Stratum_Keyword: subsurface

Temporal:

Temporal_Keyword_Thesaurus: None
Temporal_Keyword: March 2012

Access_Constraints: None
Use_Constraints:

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: Marci Marot

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: mmarot@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: Microsoft Windows 7 Enterprise Service Pack 1

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The positional accuracy of the sample locations was determined by the accuracy of the raw position data recorded by the GPS antenna during data collection. Differential Geographic Positioning System (DGPS) coordinates were obtained using post-processing software packages (National Geodetic Survey's On-Line Positioning User Service (OPUS), version 2.2 and Waypoint Product Group's GrafNav and GrafNet, version 8.30).

Logical_Consistency_Report:

This dataset contains the post-processed DGPS coordinates for samples collected during May 2012.

Completeness_Report:

This is a complete processed location and elevation data file for the 12BIM01 sediment data archive.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

All static base station sessions were processed through the On-Line Positioning User Service (OPUS) maintained by the National Oceanic and Atmospheric Administration (NOAA) and the National Geodetic Survey (NGS), and the results were entered into a spreadsheet to compute a final, time-weighted positional coordinate (latitude, longitude, and ellipsoid height). Base-station positional error for each GPS session 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 0.00018 seconds latitude and 0.00045 seconds longitude.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

All static base station sessions were processed through OPUS maintained by the National Oceanic and Atmospheric Administration (NOAA) and the National Geodetic Survey (NGS). The base location results from OPUS were entered into a spreadsheet to compute a final, time-weighted positional coordinate (latitude, longitude, and ellipsoid height). 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 standard deviation or the base station ellipsoid height was 0.006 m and the maximum vertical error for the base station was +/- 0.021 m. All sample locations were post-processed to the base station coordinates.

Lineage:

Process_Step:

Process_Description:

Accurate position and elevation data were obtained at all sampling locations with an Ashtech Differential Global Positioning System (DGPS) receiver and antenna with occupation times of 30 minutes. A GPS base station was erected at a temporarily installed USGS benchmark (TMRK) located on the sound side of the Chandeleur Islands within about 6 km of the furthest sample site. GPS receivers recorded the 12-channel full-carrier-phase positioning signals (L1/L2) from satellites via the Thales choke-ring antenna. This GPS instrument combination was duplicated on the rover GPS. The base receiver and the rover receiver record their positions concurrently at 1-second (s) recording intervals throughout the survey. Occupation times at the sample sites ranged from 5 to 30 minutes.

Process_Date: 2012
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Marci Marot

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: mmarot@usgs.gov

Process_Step:

Process_Description:

The coordinate values of the GPS base station (TMRK) are the time-weighted average of values obtained from the National Geodetic Survey On-Line Positioning User Service (OPUS). The base station coordinates were imported into GrafNav and GrafNet, version 8.3 (Waypoint Product Group) and the GPS data from the rover were post-processed to the concurrent GPS session data at the base station. The GPS data were processed and exported in the World Geodetic System of 1984 (WGS84) (G1150) geodetic datum.

Process_Date: 2012
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Marci Marot

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: mmarot@usgs.gov

Process_Step:

Process_Description:

Sample locations were transformed from the GPS acquisition datum (WGS84) to the North American Datum of 1983 (NAD83), and the North American Vertical Datum of 1988 (NAVD88) orthometric elevation (geoid model of 2009, GEOID09) using NOAA VDatum version 3.2 transformation software (http://vdatum.noaa.gov/) and imported into Esri ArcGIS version 10.1.

Process_Date: 2013
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Marci Maro

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

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: Vector
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 8

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:

UTM_Zone_Number: 16
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: North American Datum of 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
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: Site_Location.xlsx
Entity_Type_Definition:

Micr0soft Excel workbook defining the location of sediment samples collected in March 2012 from the northern Chandeleur Islands, Louisiana (U.S. Geological Survey Field Activity Number 12BIM01)

Entity_Type_Definition_Source: USGS

Attribute:

Attribute_Label: Core ID
Attribute_Definition: Core identification number
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Core site identification number assigned by USGS scientist

Attribute:

Attribute_Label: Sampling Date
Attribute_Definition: Date core was collected
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3/24/2012
Range_Domain_Maximum: 3/26/2012
Attribute_Units_of_Measure: mm/dd/yyyy
Attribute_Measurement_Resolution: 1 day

Attribute:

Attribute_Label: Latitude
Attribute_Definition: Latitude of sample location in decimal degrees (NAD83)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 29.89559
Range_Domain_Maximum: 29.96950
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.00001

Attribute:

Attribute_Label: Longitude
Attribute_Definition: Longitude of sample location in decimal degrees (NAD83)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -88.83258
Range_Domain_Maximum: -88.82502
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.00001

Attribute:

Attribute_Label: Easting (m)
Attribute_Definition:

X-coordinate (easting) of sample location in meters (NAD83, UTM Zone 16N)

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 323182.483
Range_Domain_Maximum: 323803.558
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.001

Attribute:

Attribute_Label: Northing (m)
Attribute_Definition:

Y-coordinate (northing) of sample location in meters (NAD83, UTM Zone 16N)

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3308617.196
Range_Domain_Maximum: 3316818.387
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.001

Attribute:

Attribute_Label: Elevation (m)
Attribute_Definition: Elevation of sample location in meters (NAVD88, GEOID09)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.010
Range_Domain_Maximum: 0.374
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.001

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Marci Marot

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: mmarot@usgs.gov

Resource_Description: Downloadable data
Distribution_Liability:

Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), 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 USGS or U.S. Government 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 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: Microsoft Excel
Format_Version_Number: 2010
Format_Information_Content:

This Microsoft Excel workbook contains site locations for sediment samples collected in March 2012 (USGS Field Activity Number 12BIM01).

File_Decompression_Technique: None
Transfer_Size: 0.010

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: https://pubs.usgs.gov/ds/1045/downloads/Site_Locations.xlsx

Fees: None, if obtained online

Technical_Prerequisites:

This workbook was created using Microsoft Excel 2010 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: 20201013
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Marci Marot

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: mmarot@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: None
Metadata_Use_Constraints:

Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution.

Metadata_Security_Information:

Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None

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