Marci E. Marot
20131231
Sediment Sample Locations Collected from March 2012 to July 2013 from the Chandeleur Islands, Louisiana (U.S. Geological Survey Field Activity Numbers 12BIM01, 12BIM02, 12BIM05, and 13BIM06)
Tabular digital data
http://pubs.usgs.gov/of/2014/1079/images/Tables/Core_Location_Tables.xlsx
Marci E. Marot
C. Scott Adams
Kathyrn A. Richwine
Christopher G. Smith
Lisa E. Osterman
Julie C. Bernier
20131231
Temporal Changes in Lithology and Radiochemistry from the Back-barrier Environments along the Chandeleur Islands, Louisiana: March 2012–July 2013
Multimedia presentation
U.S. Geological Survey Open-File Report
2014-1079
St. Petersburg, FL
U.S. Geological Survey
https://doi.org/10.3133/ofr20141079
Scientists from the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted a time-series collection of shallow sediment cores from the back-barrier environments along the Chandeleur Islands, Louisiana from March 2012 through July 2013. The sampling efforts were part of a larger USGS study to evaluate the effects on the geomorphology of the Chandeleur Islands following the construction of an artificial sand berm in response to the Deep Water Horizon oil spill. 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, radiochemical, and microbiological data derived from the sediment cores. Data is available for a time-series of four sampling periods: March 2012; July 2013; September 2012; and July 2013. Data is available in downloadable spreadsheet, Joint Photographic Experts Group and Portable Document File formats. Additional files included: ArcGIS shape files of the sample locations, detailed results of sediment grain size analyses, and formal Federal Geographic Data Committee (FDGC) metadata.
This dataset includes the geographic locations, elevations, and site information in Microsoft Excel format for sediment samples collected from March 2012 to July 2013 from the Chandeleur Islands, Louisiana (U.S. Geological Survey Field Activity Numbers 12BIM01, 12BIM02, 12BIM05, and 13BIM06).
None
20120322
20130717
Ground condition
None planned
-88.836353
-88.824796
29.969588
29.895421
USGS Metadata Identifier
USGS:e74a3c86-34ee-48a4-919f-7a19ade2ee32
None
back-barrier
wetland
sediment
latitude
longitude
easting
northing
elevation
U.S. Geological Survey
USGS
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Geographic Names Information System (GNIS)
Louisiana
Gulf of Mexico
Chandeleur Islands
None
sediment
subsurface
None
March 2012
July 2012
September 2012
July 2013
None
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.
U.S. Geological Survey
Marci Marot
Geologist
Mailing and physical
600 4th Street South
St. Petersburg
FL
33701
USA
(727) 502-8057
mmarot@usgs.gov
U.S. Geological Survey, Coastal and Marine Geology Program, St. Petersburg Coastal and Marine Science Center
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143
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).
This dataset contains the post-processed DGPS coordinates for samples collected during four separate surveys in 2012 and 2013.
This is a complete processed physical parameters data file for the 12BIM01, 12BIM02, 12BIM05, and 13BIM06 core time series archive.
All static base station sessions were processed through 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.
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.
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.
2012
U.S. Geological Survey
Julie Bernier
Geologist
Mailing and physical
600 4th Street South
St. Petersburg
FL
33701
USA
(727) 502-8000
jbernier@usgs.gov
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.
2012
U.S. Geological Survey
Julie Bernier
Geologist
Mailing and physical
600 4th Street South
St. Petersburg
FL
33701
USA
(727) 502-8000
jbernier@usgs.gov
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.
2013
U.S. Geological Survey
Julie Bernier
Geologist
Mailing and physical
600 4th Street South
St. Petersburg
FL
33701
USA
(727) 502-8000
Added keywords section with USGS persistent identifier as theme keyword.
20201013
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Vector
Point
15
Universal Transverse Mercator
16
0.9996
87.0
0.0
500000.0
0.0
coordinate pair
0.001
0.001
Meters
D North American 1983
GRS 1980
6378137.0
298.257222101
North American Vertical Datum of 1988
0.001
Meters
Attribute values
Core_Location_Tables.xlsx
Micorsoft Excel workbook defining the location of sediment samples collected from March 2012 through July 2013 from the northern Chandeleur Islands, Louisiana (U.S. Geological Survey Field Activity Number 12BIM01, 12BIM02, 12BIM05, and 13BIM06)
USGS
Core ID
Core identification number
USGS
Character string
Sampling Date
Date core was collected
USGS
3/24/2012
7/17/2013
mm/dd/yyyy
1 day
Latitude
Latitude of sample location in decimal degrees (NAD83)
USGS
29.89550
29.96950
decimal degrees
0.00001
Longitude
Longitude of sample location in decimal degrees (NAD83)
USGS
-88.83583
-88.82502
decimal degrees
0.00001
Easting (m)
X-coordinate (easting) of sample location in meters (NAD83, UTM Zone 16N)
USGS
322818.425
323803.558
Meters
0.001
Northing (m)
Y-coordinate (northing) of sample location in meters (NAD83, UTM Zone 16N)
USGS
3308611.746
3316818.387
Meters
0.001
Elevation (m)
Elevation of sample location in meters (NAVD88, GEOID09)
USGS
-0.792
1.152
Meters
0.001
U.S. Geological Survey
Marci Marot
Geologist
Mailing and physical
600 4th Street South
St. Petersburg
FL
33701
USA
(727) 502-8027
mmarot@usgs.gov
Downloadable data
This publication was prepared by an agency of the United States Government. 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. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
Microsoft Excel
2010
Tabular data
This Microsoft Excel workbook contains sample information for sediment samples collected from March 2012 to July 2013 (USGS Field Activity Numbers 12BIM01, 12BIM02, 12BIM05, and 13BIM06).
None
.016
http://pubs.usgs.gov/of/2014/1079/images/Tables/Core_Location_Tables.xlsx
None, if obtained online
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/).
20201013
U.S. Geological Survey
Marci Marot
Geologist
Mailing and physical
600 4th Street South
St. Petersburg
FL
33701
USA
(727) 502-8000
mmarot@usgs.gov
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
None
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.
None
Unclassified
None