Rhode Island Geographic Information System Data --- RIGIS Data

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Elevation and Derived Products

name	description	publication date	download
Bathymetry	Bathymetric depth contours for Narragansett Bay and Block Island sound at twenty foot intervals as depicted on NOAA nautical charts.	03/1997	s44hby97.zip (1.5 MB) E00; bathymet.zip (1.6 MB) SHP
Benchmarks	Monumented vertical control benchmarks with elevation from geodetic survey control data set.	03/1995	s44vbm95.zip (0.1 MB) E00; bench95.zip (0.1 MB) SHP
Geodetic Survey Points	Geodetic survey horizontal and vertical monumented control points from the National Geodetic Reference System and RI control bases including elevation bench marks and point coordinates.	03/1995	s44bgc95.zip (0.1 MB) E00; geod95.zip (0.2 MB) SHP
Statewide Digital Terrain Model (1997)	Digital Terrain Model derived from the 1997 National Grid USA/RIDOT Digital Orthophoto Project. Provided in both TIN and ESRI terrain formats.	06/2001	5KDTM_TIN.zip (248 MB) E00; 5KDTM_terrain.zip (98 MB) FGDB
Statewide Digital Terrain Model- Raw Mass Point and Breakline Data (1997)	Source data used to generate the Statewide Digital Terrain Model (1997) currently offered by RIGIS. This space-delimited ASCII text file contains the coordinates and elevation values of the mass points and breakline features used for this DTM.	06/2001	5KDTM_ASCII.zip (72 MB) TXT
Statewide Elevation Model (1:250000)	1:250,000 scale USGS Digital Elevation Model clipped to state boundary at 100 meter pixel resolution. (No metadata available at this time.)	unknown	s44dem.zip (0.3 MB) DEM
USGS Digital Line Graphs	1:100,000 USGS Hypsography Dataset 10 Meter Elevation Contour Lines for Rhode Island & Nearby Massachussetts & Connecticut within the boundaries of the 1:100,000 Quadrangles for BOSTON, PROVIDENCE, BLOCK ISLAND	unknown	100k_contours.zip (18.4 MB) SHP

name

description

type

publication date

metadata

download

Bathymetry

Bathymetric depth contours for Narragansett Bay and Block Island sound at twenty foot intervals as depicted on NOAA nautical charts.

03/1997

s44hby97.zip (1.5 MB) E00;
bathymet.zip (1.6 MB) SHP

Benchmarks

Monumented vertical control benchmarks with elevation from geodetic survey control data set.

03/1995

s44vbm95.zip (0.1 MB) E00;
bench95.zip (0.1 MB) SHP

Geodetic Survey Points

Geodetic survey horizontal and vertical monumented control points from the National Geodetic Reference System and RI control bases including elevation bench marks and point coordinates.

03/1995

s44bgc95.zip (0.1 MB) E00;
geod95.zip (0.2 MB) SHP

Statewide Digital Terrain Model (1997)

Digital Terrain Model derived from the 1997 National Grid USA/RIDOT Digital Orthophoto Project. Provided in both TIN and ESRI terrain formats.

06/2001

5KDTM_TIN.zip (248 MB) E00;
5KDTM_terrain.zip (98 MB) FGDB

Statewide Digital Terrain Model- Raw Mass Point and Breakline Data (1997)

Source data used to generate the Statewide Digital Terrain Model (1997) currently offered by RIGIS. This space-delimited ASCII text file contains the coordinates and elevation values of the mass points and breakline features used for this DTM.

06/2001

5KDTM_ASCII.zip (72 MB) TXT

Statewide Elevation Model (1:250000)

1:250,000 scale USGS Digital Elevation Model clipped to state boundary at 100 meter pixel resolution. (No metadata available at this time.)

unknown

s44dem.zip (0.3 MB) DEM

USGS Digital Line Graphs

1:100,000 USGS Hypsography Dataset 10 Meter Elevation Contour Lines for Rhode Island & Nearby Massachussetts & Connecticut within the boundaries of the 1:100,000 Quadrangles for BOSTON, PROVIDENCE, BLOCK ISLAND

unknown

100k_contours.zip (18.4 MB) SHP

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