Hart, Patrick, 2005, MD02CHIRPPNTS.SHP - 5-second shot points along chirp seismic lines collected during the 2002 MARION DUFRESNE cruise (02018) in the Gulf of Mexico: 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 |
|---|---|
| 2002 | Year data collected |
| Range of values | |
|---|---|
| Minimum: | 185 |
| Maximum: | 196 |
| Units: | integer |
| Resolution: | 1 |
| Range of values | |
|---|---|
| Minimum: | 35 |
| Maximum: | 2225 |
| Units: | integer |
| Resolution: | 1 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 59 |
| Units: | integer |
| Resolution: | 1 |
| Range of values | |
|---|---|
| Minimum: | 27.16786 |
| Maximum: | 28.29274 |
| Units: | decimal degrees |
| Resolution: | .00001 |
| Range of values | |
|---|---|
| Minimum: | -92.26868 |
| Maximum: | -88.89426 |
| Units: | decimal degrees |
| Resolution: | .00001 |
Character string identifying the survey line.
(508) 548-8700 x2266 (voice)
(508) 457-2310 (FAX)
dtwichell@usgs.gov
This GIS data layer shows the shotpoint location with date and time along which chirp seismic-reflection profiles were collected to aid in selecting coring sites during a cruise aboard the R/V MARION DUFRESNE in 2002. The cruise was conducted in the northern Gulf of Mexico (USGS Field Activity 02018) to recover cores for gas hydrate studies.
Person who carried out this activity:
(650) 329-5160 (voice)
(650) 329-5190 (FAX)
hart@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
650-329-5160 (voice)
650-329-5190 (FAX)
hart@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
650-329-5160 (voice)
650-329-5190 (FAX)
hart@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
508-548-8700 x 2251 (voice)
508-457-2310 (FAX)
vatnipp@usgs.gov
Data sources produced in this process:
Differential GPS navigation
No additional checks for topological consistency were performed on this data set. 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 x2263 (voice)
(508) 457-2310 (FAX)
dhutchinson@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 point shapefile Size: 0.303 |
|---|---|
| Network links: |
<http://pubs.usgs.gov/of/2005/1071/data/seismic/2002/nav/md02chirppnts.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 x 2261 (voice)
(508) 457-2310 (FAX)
dtwichell@usgs.gov
