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| U.S. Geological Survey Open-File Report 02-002 |
Poppe, Larry, and Paskevich, Valerie, 20020630, 81_2NAVT: Navigation lines for R/V ASTERIAS 81-2 (AST81-2): U.S. Geological Survey Open-File Report 02-002, U.S. Geological Survey, Woods Hole Field Center.This is part of the following larger work.Online Links:
Poppe, Larry, and Paskevich, Valerie, 2002, Geological Framework Data from Long Island Sound, 1981-1990: A Digital Data Release: U.S. Geological Survey Open-File Report 02-002, U. S. Geological Survey, Coastal and Marine Geology Program, 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 0.00001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is North American Datum of 1927.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378206.400000.
The flattening of the ellipsoid used is 1/294.978698.
Frequency of measurement: None planned
| Range of values |
|---|
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Frequency of measurement: As needed
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 41 |
| Units: | integer |
| Resolution: | 1 |
| Range of values | |
|---|---|
| Minimum: | .013 |
| Maximum: | .293 |
| Resolution: | .001 |
| Range of values | |
|---|---|
| Units: | Time in hours and minutes in military time |
| Resolution: | Hours and minutes |
| Value | Definition |
|---|---|
| AST81-2 | Assigned identifier for cruise R/V ASTERIAS 81-2 |
| Range of values | |
|---|---|
| Units: | Time in hours and minutes in military time |
| Resolution: | Hours and minutes |
Character string
Frequency of measurement: As needed
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 31 |
| Units: | integer |
| Resolution: | 1 |
Frequency of measurement: As needed
| Value | Definition |
|---|---|
| Hour:minute | Hour and minutes |
Frequency of measurement: As needed
| Value | Definition |
|---|---|
| HH:MM | Hour and minute |
GIF file name
Sally Needell and Ralph Lewis, the chief scientists aboard the cruise; and Valerie Paskevich for completing the Arc processing and creation of the GIS data layer.
U. S. Geological Survey
c/o Larry Poppe
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA
(508) 548-8700 x2314 (voice)
(508) 457-2310 (FAX)
lpoppe@usgs.gov
- Hours_of_Service: 0800-1600
The purpose is to disseminate a digital version of a regional map showing the distribution of sub-bottom seismic profiles (boomer) collected in Block Island Sound and easternmost Long Island Sound. The seismic data collected along these ship tracks can be used to provide useful information about the framework geology in this region.
Needel, Sally W. , and Lewis, Ralph S. , 19840000, Geology of Block Island Sound, R.I. and N.Y.: U.S. Geological Survey Miscellaneous Field Studies Map MF-1621, U.S. Geological Survey, Woods Hole, MA.
Person who carried out this activity:
U.S. Geological SurveyData sources used in this process:
c/o Valerie Paskevich
Computer Specialist
384 Woods Hole road
Woods Hole, MA 02543-1598
USA
(508) 548-8700 x2281 (voice)
(508) 457-2310 (FAX)
vpaskevich@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
U.S. Geological SurveyData sources used in this process:
c/o Valerie Paskevich
384 Woods Hole road
Woods Hole, MA 02543-1598
USA
(508) 548-8700 x2281 (voice)
(508) 457-2310 (FAX)
vpaskevich@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
Valerie PaskevichData sources used in this process:
U.S. Geological Survey
Computer Specialist
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA
(508) 548-8700 x2281 (voice)
(508) 457-2310 (FAX)
vpaskevich@usgs.gov
Data sources produced in this process:
All attribute data were recorded by the chief scientist and entered and checked by the compilers in a consistent manner.
A navigation was done by Loran C. Typical Loran accuracy for LIS is about 100 m.
Tides are less than 2 m
Complete information is provided for all navigation lines in the data set. Navigation points are spaced at 5 minute intervals (approx) and at course changes or line events (start/end). Continous navigation is not available.
No additional checks for topological consistency were performed on this data set.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- The U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data.
Although this derived data set and it's lineage dataset have been used by the 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.
U. S. Geological Survey
c/o Larry Poppe
Geologist
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA
(508) 548-8700 x2314 (voice)
(508) 457-2310 (FAX)
lpoppe@usgs.gov
Long Island Sound: 81_2navt.shp
Although this derived data set and it's lineage dataset have been used by the 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.
| Data format: | The five ArcView shapefiles (81_2navt.dbf, 81_2navt.shp, 81_2navt.shx, 81_2navt.avl, 81_2navt.prj) comprising the navigation data for the R/V ASTERIAS 81_2 cruise in Block Island Sound and easternmost Long Island Sound and an ASCII version of the data layer metadata file. in format ArcView (version 3.2) shapefile Size: 16.6 Kbytes |
|---|---|
| Network links: |
<http://woodshole.er.usgs.gov/openfile/of02-002/data/nav/81_2nav/81_2navt.zip> |
| Media you can order: |
DVD
(Density 4.7
Gbytes)
(format UDF)
Note: The user must have a system with a DVD drive capable of reading an UDF standard DVD-R disk. To browse the information contained on this disk, the user must also have a current version of WWW browser available. The user must also have the software installed on their computer system capable to unzip the archived file.
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None
The 81_2 navigation overlay is available in an ArcView shapefile format. The user must have ESRI's ArcView 3.0 or greater software to read and process the data file. In lieu of Arcview, the user may utilize another GIS application package capable of importing the data.
Valerie Paskevich
U. S. Geological Survey
computer specialist
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA
(508) 548-8700 x2281 (voice)
(508) 457-2310 (FAX)
vpaskevich@usgs.gov