Twichell, D.C., and Paskevich, V.F., 1996, GLORIATRACKS.SHP - Tracklines derived from hourly navigation fixes for all four R/V FARNELLA Gulf of Mexico GLORIA cruises: Open-File Report 2005-1071, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.This is part of the following larger work.Online Links:
Twichell, D.C., Cross, V.A., Paskevich, V.F., Hutchinson, D.R., Winters, W.J., and Hart, P.E., 2005, GIS of selected geophysical and core data in the northern Gulf of Mexico continental slope collected by the U.S. Geological Survey: Open-File Report 2005-1071, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
| Value | Definition |
|---|---|
| FRNL85-1 | R/V FARNELLA 1985 leg 1 |
| FRNL85-2 | R/V FARNELLA 1985 leg 2 |
| FRNL85-3 | R/V FARNELLA 1985 leg 3 |
| FRNL82-7 | R/V FARNELLA 1982 leg 7 |
Character string in the form of SHIP_YEAR-LEG OF CRUISE
| Range of values | |
|---|---|
| Minimum: | 06780030 |
| Maximum: | 06780039 |
| Units: | integer count |
| Value | Definition |
|---|---|
| FARNELLA | R/V FARNELLA owned and operated by the Institute of Oceanographic Sciences, University of Southampton |
Character string
| Value | Definition |
|---|---|
| 19820203 | Start date of cruise FRNL85-1 |
| 19850906 | Start date of cruise FRNL85-2 |
| 19851003 | Start date of cruise FRNL85-3 |
| 19820203 | Start date of cruise FRNL82-7 |
| Value | Definition |
|---|---|
| 19820223 | End date of cruise FRNL85-1 |
| 19850928 | End date of cruise FRNL85-2 |
| 19851021 | End date of cruise FRNL85-3 |
| 19820223 | End date of cruise FRNL82-7 |
| Value | Definition |
|---|---|
| 10000 | unknown |
(508) 548-8700 x2266 (voice)
(508) 457-2310 (FAX)
dtwichell@usgs.gov
Shapefile of tracklines for Gloria cruises Farn82-7, Farn85-1, Farn85-2, and Farn85-3. The tracklines were extracted from OFR96-707 navigation. The total number of kilometers of single-channel analog seismic reflection data collected on these four cruises was approximately 30,851 km.
Person who carried out this activity:
(508) 548-8700 x2266 (voice)
508-457-2310 (FAX)
dtwichell@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
(508) 548-8700 x2266 (voice)
508-457-2310 (FAX)
dtwichell@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
(508) 548-8700 x2266 (voice)
508-457-2310 (FAX)
dtwichell@usgs.gov
Data sources produced in this process:
Twichell, D.C., and Paskevich, V.F., 1996, GLORIA sidescan-sonar field data and navigation data collected in the Gulf of Mexico during R/V FARNELLA cruises in 1982 and 1985: Open-File Report 96-707, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.
No additional checks for topological consistency were performed on the data. No duplicate features are present.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Public domain data from the U.S. government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
(508) 548-8700 x2266 (voice)
(508) 457-2310 (FAX)
dtwichell@usgs.gov
Downloadable Data
Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. 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.
| Data format: | The SHP file contains the geospatial data. The SHX file contains the index of the geospatial data. The DBF file contains the attribute data in dBase format. The PRJ file contains the coordinate system information (optional). The AVL file contains the legend information (optional). The SBN and SBX files contain the spatial index of the geospatial data (optional). The XML file contains the metadata describing the data set <data set name>.shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional). in format SHP (version 3.3) ESRI polyline Shapefile Size: 0.010 |
|---|---|
| Network links: |
<http://pubs.usgs.gov/of/2005/1071/data/seismic/1982_1985/gloriatracks/gloriatracks.zip> |
| Media you can order: |
DVD-ROM
(Density 4.75
Gbytes)
(format UDF)
|
The data are available in Environmental Systems Research Institute (ESRI) 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 data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com.
(508) 548-8700 x2266 (voice)
(508) 457-2310 (FAX)
