Online Links:
Online Links:
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 41 |
| Units: | integer |
| Resolution: | 1 |
| Range of values | |
|---|---|
| Minimum: | .013 |
| Maximum: | .293 |
| Resolution: | .001 |
| Value | Definition |
|---|---|
| AST81-2 | Assigned identifier for cruise R/V ASTERIAS 81-2 |
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 31 |
| Units: | integer |
| Resolution: | 1 |
| Value | Definition |
|---|---|
| Hour:minute | Hour and minutes |
| Value | Definition |
|---|---|
| HH:MM | Hour and minute |
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.
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.
Online Links:
Online Links:
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 its 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.
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
| 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: 1 |
|---|---|
| Network links: |
https://doi.org/10.3133/ofr022 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. |
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.