U.S. Geological Survey
2011
Shot point navigation at 500 shot intervals for EdgeTech SB-512i chirp seismic-reflection data collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center offshore of the Gulf Islands, MS, 2010 (ESRI point shapefile, 2010-012-FA_SeismicShot_500.shp)
1.0
vector digital data
Open-File Report
2010-1178
Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.3133/ofr20101178
https://pubs.usgs.gov/of/2010/1178/html/GIS_catalog.html
https://pubs.usgs.gov/of/2010/1178/GIS_catalog/Tracklines/2010-012-FA_shots.zip
Elizabeth A. Pendleton
Wayne E. Baldwin
William W. Danforth
Nancy T. Dewitt
Arnell S. Forde
David S. Foster
Kyle W. Kelso
William R. Pfeiffer
Aaron M. Turecek
James G. Flocks
David C. Twichell
2011
Geophysical Data from offshore of the Gulf Islands National Seashore, Cat Island to Western Horn Island, Mississippi
1.0
Open-File Report
2010-1178
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2010/1178/
In 2010, the U.S. Geological Survey in Woods Hole, MA and St. Petersburg, FL, in partnership with the U.S. Army Corps of Engineers, Mobile District conducted geologic mapping to characterize the seafloor and shallow subsurface stratigraphy offshore of the Gulf Islands of Mississippi. The mapping was carried out during two cruises in March, 2010 on the R/V Tommy Munro of Biloxi, MS. Data were acquired with the following equipment: an SEA Ltd SwathPlus interferometric sonar (both 234 kHz and 468 kHz systems), a Klein 3000 and a Klein 3900 dual frequency sidescan-sonar, and an Edgetech 512i chirp subbottom profiling system. The long-term goal of this mapping effort is to produce high-quality, high-resolution geologic maps and geophysical interpretations that can be utilized to identify sand resources within the region and better understand the Holocene evolution and anticipate future changes in this coastal system. More information on the field work can be accessed from the Woods Hole Coastal and Marine Science Center Field Activity webpage https://cmgds.marine.usgs.gov/fan_info.php?fan=2010-012-FA or the St. Petersburg Coastal and Marine Geology InfoBank https://walrus.wr.usgs.gov/infobank/m/m210gm/html/m-2-10-gm.meta.html.
This dataset contains shot point navigation at even 500 shot intervals for approximately 1523 km of EdgeTech SB-512i chirp seismic-reflection data collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center in 2010. The seismic-reflection data are used to define sub-surface stratigraphy offshore of the Gulf Islands in Mississippi, and these navigation data can help spatially correlate the seismic-reflection profiles with other data in the GIS.
20100304
20100317
Data were not collected on 20100310, and 20100312-20100314 due to weather conditions, crew changes, or survey location.
None planned
-89.082139
-88.710194
30.229300
30.093017
USGS Metadata Identifier
USGS:869df712-0143-4c99-9f1e-d8142e38db2b
None
U.S. Geological Survey
USGS
Woods Hole Coastal and Marine Science Center
WHCMSC
Coastal and Marine Geology Program
CMGP
seismic profile
seismic reflection
shot point navigation
seismic navigation
chirp
EdgeTech
SB-512i
WHCMSC field activity serial number 2010-012FA
R/V Tommy Munro
ISO 19115 Topic Category
oceans
location
USGS Thesaurus
navigational data
marine geophysics
geospatial datasets
None
Mississippi
Gulf Islands
North Central Gulf Coast
United States
West Ship Island
East Ship Island
Horn Island
Dog Key Pass
Camille Cut
Petit Bois Island
Gulfport Ship Channel
Gulf of Mexico
Cat Island
None
The Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
David C. Twichell
U.S. Geological Survey
Oceanographer
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
(508) 548-8700x2266
(508) 457-2310
dtwichell@usgs.gov
https://pubs.usgs.gov/of/2010/1178/GIS_catalog/Tracklines/2010-012-FA_shots.png
Shot point navigation at even 500 shot intervals for SB-512i seismic-reflection data collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center
offshore of the Gulf Islands, MS
PNG
Microsoft Windows XP Professional x64 Edition Version 2003 Service Pack 2; ESRI ArcCatalog 9.3 Build 1770
John Stockwell
2008
CWP/SU: Seismic Uni*x
Golden, CO
Center for Wave Phenomena - Colorado School of Mines
http://www.cwp.mines.edu/cwpcodes/title_page.html
Paul Henkart
2007
SIOSEIS
LaJolla, CA
Scripps Institution of Oceanography, University of California - San Diego
http://sioseis.ucsd.edu/title_page.html
Michael W. Norris
Alan K. Faichney
2002
SEGY Rev.1 Data Exchange Format1
Tulsa, OK
Society of Exploration Geophysicists
http://www.seg.org/documents/10161/77915/seg_y_rev1.pdf
All attributes were checked in a consistent manner.
Any spurious data points were removed during processing.
Sections of tracklines where navigation was recorded but no seismic data were logged are not included.
The SB-0512i was mounted on a catamaran sled and towed at the sea surface approximately 50 m astern of the R/V Tommy Munro. Position data were provided by a Differential Global Positioning System (DGPS) navigation receiver mounted on the catamaran, and data were transmitted to the acquisition computer on the vessel via a 2.4 GHz radio link. The SonarWiz.MAP +SBP acquisition software logged the navigation coordinates (in arc-seconds) to individual trace headers in the Society of Exploration Geophysicists Y (SEG-Y), Revision 1 format (Norris and Faichney, 2002). Positional accuracy is assumed to be better than 10 m.
Information unavailable from original metadata - assumed USGS
unknown
Information unavailable from original metadata
disc
20100304
20100317
Data were not collected on 20100310, and 20100312-20100314 due to weather conditions, crew changes, or survey location.
Information unavailable from original metadata
High-resolution chirp seismic-reflection profiles were collected using an EdgeTech Geo-Star Full Spectrum Sub-bottom (FSSB) system and SB-512i towfish (0.5-12 kHz) (EdgeTech, 2008). SonarWiz.MAP +SBP acquisition software (Chesapeake Technology Inc., 2009) was used to control the Geo-Star topside unit and digitally log trace data in the Society of Exploration Geophysicists Y (SEG-Y), Revision 1, standard format (Norris and Faichney, 2002). The SB-512i towfish was mounted on a catamaran and towed astern of the starboard side of the vessel. Navigation coordinates were obtained from a DGPS antenna mounted on the catamaran and logged to the SEG-Y trace headers. Data were acquired using a 0.5 to 8 kHz frequency sweep, a 5 millisecond pulse length, a 0.25 second shot rate, a 46 microsecond sample interval, and a 100 millisecond record length. A total of 1523 km of seismic data were collected.
An executable C-shell script called on SIOSEIS (version 10.2.25) to: 1) read the raw SEG-Y data and create shot gathers containing two consecutive traces; 2) create a stacked trace from the two trace gathers while maintaining the navigation coordinates from the header of the first trace in each; and 3) write the stacked traces to new SEG-Y files. This stacking flow ensured that the resulting traces were spaced greater than 0.5 m apart along the trackline, which is a prerequisite for the traces to be loaded into GeoGraphix SeisVision (version R5000) for digital interpretation.
201003
Wayne Baldwin
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Rd
Woods Hole
MA
02543-1598
USA
508-548-8700 x2226
508-457-2310
wbaldwin@usgs.gov
An executable C-shell script called on Seismic Unix (version 4.1) to read the stacked SEG-Y files, write a Seismic Unix file, and extract SEG-Y trace header information, including shot number, longitude, latitude, year, Julian day, and time of day (UTC) to ASCII text files for each survey line. The data were filtered using AWK (no version) to save records for the first and last shots, and shots at unique longitude/latitude positions in between ( .csv version of the unique shot point navigation is included in the WinZip file '2010-012-FA_shots.zip'. Geographic coordinates (WGS84) were converted to UTM zone 16 coordinates (WGS84) using Proj (version 4.6.0), and added to the text files in two new columns.
201003
Wayne Baldwin
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Rd
Woods Hole
MA
02543-1598
USA
508-548-8700 x2226
508-457-2310
wbaldwin@usgs.gov
An additional AWK filter was applied to each file created in the previous step to extract trace header records containing the first and last shots, and shots evenly divisible by 500 for each survey line. A 500 shot interval was chosen because it corresponds to the annotation interval provided along the top of the seismic-reflection profile portable network graphic (PNG) images, which are included in the 'GIS_catalog\Seisimage\2010-012-FA' directory.
201003
Wayne Baldwin
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Rd
Woods Hole
MA
02543-1598
USA
508-548-8700 x2226
508-457-2310
wbaldwin@usgs.gov
Text files created in the previous step were concatenated into a comma-delimited text file, then imported into ArcMap (version 9.2) using 'Add XY data' and saved as points (Geographic, WGS84) in the ESRI shapefile format ('2010-012-FA_SeismicShot_500.shp').
201003
Wayne Baldwin
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Rd
Woods Hole
MA
02543-1598
USA
508-548-8700 x2226
508-457-2310
wbaldwin@usgs.gov
Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). Fixed a one of the links to the data in the Distribution_Information section. Attempted to modify http to https where appropriate. Added a landing page link as the first link in the identification section. Updated the link to the field activity. The source information was incomplete and had to be modified to meet the standard. The distribution format name was modified in an attempt to be more consistent with other metadata files of the same data format. Added a distribution format to account for the CSV file in the zip file. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent.
20171030
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
USGS Thesaurus keywords added to the keyword section.
20180720
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
Crossref DOI link was added as the first link in the metadata.
20191118
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
Added keywords section with USGS persistent identifier as theme keyword.
20200908
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
Entity point
3061
0.000001
0.000001
Decimal degrees
D_WGS_1984
WGS_1984
6378137.000000
298.257224
2010_012FA_SeismicShot_500
Shot point navigation for seismic profiles
USGS
FID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
East
Easting coordinate in UTM Zone 16 meters, WGS84
USGS
299519.36
335355.66
meters
0.01
North
Northing coordinate in UTM Zone 19 meters, WGS84
USGS
3330754.64
3345716.51
meters
0.01
Lon
Longitude coordinate in decimal degrees, WGS84
USGS
-89.082139
-88.710194
decimal degrees
0.000001
Lat
Latitude coordinate in decimal degrees, WGS84
USGS
30.093017
30.229300
decimal degrees
0.000001
FileName
Name of seismic data file
USGS
Sequential line and file numbers used to distinguish tracklines
ImageName
Name of seismic profile PNG image used as hyperlink
USGS
Sequential line and file numbers used to distinguish tracklines
Shot
shot number in the profile
USGS
1
12478
shot number
1
Year
Calendar year data were collected
USGS
2010
year
U.S. Geological Survey
JulDay
Julian day data were collected (Julian day is the integer number representing the interval of time in days since January 1 of the year)
USGS
63
76
day
UTC
Universal Coordinated Time of seismic shot (hh:mm:ss)
USGS
time
Elizabeth A. Pendleton
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
508-548-8700 x2259
(508)-457-2310
ependleton@usgs.gov
Downloadable Data
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Shapefile
ArcGIS 9.2
This WinZip (version 14.5) file contains unique shot point navigatioin (.csv) and shot point navigation at even 500 shot intervals (.shp) for EdgeTech SB-512i chirp seismic-reflection data collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center offshore of the Gulf Islands, MS
Use WinZip or pkUnzip
11.8
https://pubs.usgs.gov/of/2010/1178/GIS_catalog/Tracklines/2010-012-FA_shots.zip
Data can be downloaded via the World Wide Web (WWW)
CSV
ArcGIS 9.2
This WinZip (version 14.5) file contains unique shot point navigatioin (.csv) and shot point navigation at even 500 shot intervals (.shp) for EdgeTech SB-512i chirp seismic-reflection data collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center offshore of the Gulf Islands, MS
Use WinZip or pkUnzip
11.8
https://pubs.usgs.gov/of/2010/1178/GIS_catalog/Tracklines/2010-012-FA_shots.zip
Data can be downloaded via the World Wide Web (WWW)
none
This zip file contains data available in Environmental Systems Research Institute (ESRI) point shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.
20240318
Elizabeth A. Pendleton
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
508-548-8700 x2259
(508)-457-2310
whsc_data_contact@usgs.gov
The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318)
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time