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U.S. Geological Survey Open-File Report 2012–1005

Sea-Floor Character and Sedimentary Processes of Block Island Sound, Offshore Rhode Island


Geographic Information System Data Catalog

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Geographic Information System

This report contains Geographic Information System (GIS) data in both vector and raster format. The vector data are provided in shapefile format compatible with Environmental System Research Institute's (ESRI) ArcView and ArcGIS software. These data are in the Geographic, WGS84 coordinate system. The raster data are provided in GeoTIFF format and ESRI binary grid format. These raster data are provided in both the Geographic, WGS84 coordinate system and a Universal Transverse Mercator (UTM), Zone 19, NAD83 projection. Data layers archived here should not require additional processing to be used in ESRI software.

For users who do not have the ESRI software or a compatible GIS data browser available on their computer, a free viewer, ArcExplorer, is available from ESRI. The key functionality of ArcExplorer is the displaying of spatial data. The user will need to add the selected data layers by using ArcExplorer's add data button.

Data Description

This report includes links to several data layers (or themes) that can be used to create views of the study area offshore in eastern Rhode Island Sound. GeoTIFFs of the bathymetry are provided as color hill-shaded relief images. ArcRaster binary grids of the multibeam bathymetric data are included at 4-m resolution.

Ancillary vector data consist of (1) polygon data layers that provide base maps of the coastline for the Block Island Sound GIS project area, an outline of the survey area, and interpretations of sea-floor sedimentary environments and features and (2) point data layers of the sediment data and locations of bottom photos. The photographic data are provided in mid- and full-resolution JPEG image format.

Each GIS data layer from this publication is cataloged below for easy access. The individual data layers are described below and include the GeoTIFF, grid, or shapefile name (for example, bisound_4mmb_utm19.tif), which is linked to a browse graphic showing the data-layer extent and coverage. Selecting the data-layer name will result in the browse graphic being displayed in a separate browser window.

The top level of this report on the DVD-ROM contains an ArcView project file (bisound.apr) created in ArcView 3.3 and an ESRI ArcMap document (bisound.mxd) created in ArcMap 9.2 but saved as an ArcMap 9.0/9.1 document to make it accessible to older versions of the software.

Federal Geographic Data Committee (FGDC) metadata for the individual data layers are provided in HTML, FAQ HTML, and text versions. Selecting associated metadata files from the table below will open the information in a new browser window.

A compressed (.zip), downloadable archive file containing the components of the shapefile, grid, or image for each data layer is also provided. Compressed, downloadable files were created by using the Windows program WINZIP v8.0. Users who do not have software capable of uncompressing the archived files may obtain a free version of the software from Pkware, Inc.

BATHYMETRIC IMAGERY

DATA-LAYER NAME AND DESCRIPTION

METADATA

FILES

bisound_4mmb_geo -- full-color, hill-shaded multibeam bathymetric imagery of NOAA surveys from Block Island Sound (geographic, WGS84) generated from the 4-m grid

HTML
FAQ
text

Zip
(52.8 MB)

bisound_4mmb_utm19 -- full-color, hill-shaded multibeam bathymetric imagery of NOAA surveys from Block Island Sound (UTM, Zone 19, NAD83) generated from the 4-m grid

HTML
FAQ
text

Zip
(53.5 MB)

BATHYMETRIC GRIDS

DATA-LAYER NAME AND DESCRIPTION

METADATA

FILE

bisound_4mgeo -- 4-m bathymetric grid of the multibeam bathymetry of NOAA surveys (geographic, WGS84) from Block Island Sound

HTML
FAQ
text

Zip
(113.5 MB)

bisound_4mutm -- 4-m bathymetric grid of the multibeam bathymetry of NOAA surveys (UTM Zone 19, NAD83) from Block Island Sound

HTML
FAQ
text

Zip
(90.4 MB)
 

VERIFICATION DATA LAYERS

DATA-LAYER NAME AND DESCRIPTION

METADATA

FILES

2011_006bisseddata -- locations and sediment grain-size analysis data (provided in shapefile, text, and Excel (.xls) formats) for samples collected during USGS cruise 2011-006-FA in Block Island Sound (geographic, WGS84)

HTML
FAQ
text

Zip
(100 KB)

2011_006_bisbotphotos -- locations of bottom photographs (provided in shapefile, text, and Excel (.xls) formats) collected during USGS cruise 2011-006-FA and 2010-005-FA in Block Island Sound (geographic, WGS84)

HTML
FAQ
text

Zip
(110 KB)

2011_006_bisphotographs -- bottom photographs in two resolutions collected during USGS cruise 2011-006-FA in Block Island Sound (geographic, WGS84)

HTML
FAQ
text

full-res
Zip
(807 MB)

mid-res
Zip
(59.7 MB)

INTERPRETIVE DATA LAYERS

DATA-LAYER NAME AND DESCRIPTION

METADATA

FILE

bisound_sedenv -- interpretation of the sedimentary environments from NOAA surveys in Block Island Sound (geographic, WGS84)

HTML
FAQ
text

Zip
(455 KB)

bisound_interp -- interpretation of the sea-floor features from NOAA surveys in Block Island Sound (geographic, WGS84)

HTML
FAQ
text

Zip
(219 KB)

BASEMAP DATA

DATA-LAYER NAME AND DESCRIPTION

METADATA

FILE

nos80k -- digital vector shoreline shapefile for the Block Island Sound GIS project area (geographic, WGS84)

HTML
FAQ
text

Zip
(8.5 MB)

bisound_outline -- boundary of combined NOAA surveys from Block Island Sound (geographic, WGS84)

HTML
FAQ
text

Zip
(79 KB)

NAVIGATION DATA LAYER

DATA-LAYER NAME AND DESCRIPTION

METADATA

FILE

2011_006gpsnav -- all text files of the raw GPS navigation for USGS cruise 2011_006-FA during June 2011

HTML
FAQ
text

Zip
(11.9 MB)

Individuals interested in accessing the NOAA Data Acquisition and Processing Report, which contains detailed descriptions of the data-acquisition and -processing methods for the Block Island Sound project, can view it as:

OPR-B363-TJ-09.pdf

Individuals interested in accessing the NOAA Descriptive Reports, which contain detailed descriptions of the survey specific data-acquisition and -processing, can view them as:

H12009_DR.pdf

H12010_DR.pdf

H12011_DR.pdf

H12015_DR.pdf

H12033_DR.pdf

H12137_DR.pdf

H12139_DR.pdf


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