U.S. Geological Survey, 2013, H12023_INTERP: Interpretation of Bottom Features from National Oceanic and Atmospheric Administration (NOAA) Survey H12023 in Block Island Sound (Geographic, WGS84): Open-File Report 2013-1003, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.This is part of the following larger work.Online Links:
- <http://pubs.usgs.gov/of/2013/1003/data/interpret/h12023_interpret.zip>
- <http://pubs.usgs.gov/of/2013/1003/html/catalog.html>
McMullen, K.Y., Poppe, L.J., Ackerman, S.D., Blackwood, D.S., Lewit, P.G., and Parker, C.E., 2013, Sea-floor geology in northeastern Block Island Sound, Rhode Island: Open-File Report 2013-1003, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine 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 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is D_WGS_1984.
The ellipsoid used is WGS_1984.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257224.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
| Value | Definition |
|---|---|
| Scour_outliers | Areas of scour depressions and associated erosional outliers, which are characterized by steep, half-meter deep sides and flat floors. |
| Boulders | Areas of rocks on the sea floor, characterized by objects up to several meters in diameter and height based on bathymetric, sidescan-sonar, and photographic data. |
| Bedforms | Areas of low, broad bedforms on the sea floor having coarser troughs and finer crests. |
508-548-8700 x2277 (voice)
508-457-2310 (FAX)
kmcmullen@usgs.gov
To release interpretations of bottom features based on bathymetry and sidescan-sonar data collected during NOAA survey H12023 and sediment samples and bottom photography collected during USGS survey 2012-002-FA in Block Island Sound in a geographic, WGS84 coordinate system.
Person who carried out this activity:
508-548-8700 x2277 (voice)
508-457-2310 (FAX)
kmcmullen@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
508-548-8700 x2277 (voice)
508-457-2310 (FAX)
kmcmullen@usgs.gov
Data sources produced in this process:
McMullen, K.Y., Poppe, L.J., Haupt, T.A., and Crocker, J.M., 2009, Sidescan-sonar imagery and surficial geologic interpretations of the sea floor in western Rhode Island Sound: Open-File Report 2008-1181, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
McMullen, K.Y., Poppe, L.J., Ackerman, S.D., Blackwood, D.S., Schaer, J.D., Nadeau, M.A., and Wood, D.A., 2011, Surficial geology of the sea floor in central Rhode Island Sound southeast of Point Judith, Rhode Island: Open-File Report 2011-1005, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
Poppe, L.J., Danforth, W.W., McMullen, K.Y., Blankenship, M.A., Glomb, K.A., Wright, D.B., and Smith, S.M., 2012, Sea-floor character and sedimentary processes of Block Island Sound, offshore Rhode Island: Open-File Report 2012-1005, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
Navigation for the sediment samples and bathymetry data, which the interpretation was based on, was by differential GPS.
All collected data were processed and used to produce this dataset.
No additional checks for consistency were performed on this data. It is possible to have polygons that overlap, as more than one feature may be present in a location. Areas within the study area that are not outlined are areas of predominately undisturbed modern marine sediments.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- The interpretation was completed at map scales less than 1:10,000, and is not intended for use with smaller map scales. 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 x2314 (voice)
508-457-2310 (FAX)
lpoppe@usgs.gov
Downloadable Data
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor the National Oceanic and Atmospheric Administration (NOAA), 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 or NOAA 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: | A zip file containing the geospatial data, metadata, and browse graphic. in format SHP (version 3.3) Esri polygon shapefile Size: 99 KB |
|---|---|
| Network links: |
<http://pubs.usgs.gov/of/2013/1003/data/interpret/h12023_interpret.zip> <http://pubs.usgs.gov/of/2013/1003/data/interpret/> <http://pubs.usgs.gov/of/2013/1003/html/catalog.html> |
| Media you can order: |
DVD-ROM
(Density 4.75
Gbytes)
(format UDF)
|
The user must be capable of uncompressing WinZip files. Also, these 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 x2277 (voice)
508-457-2310 (FAX)
kmcmullen@usgs.gov
