Data

New Coastal Lidar and Imagery Available

LiDAR

There are two new collections of coastal LiDAR data available for download via the Elevation and Bathymetry section of this website. While neither collection provides full coverage of Rhode Island, both provide users with high-quality elevation data that can be used in a variety of ways.

First, is the 2014 NOAA post-Sandy Topobathy LiDAR collection that provides coverage of RI’s south coast towns. Currently these data are only availabe in LAS file format from RIGIS, however we hope to make tiled Digital Elevation Model (DEM) data available in the future. For users wishing to access and use DEM data now, please visit the NOAA Digital Coast Data Access Viewer, where these data can be downloaded as DEMs (a blog posting on how to do this will be forthcoming!).

Second, the 2014 USGS CMGP Sandy LiDAR collection that also provides coverage of RI’s south coast towns, as well as coverage of the southern portion of Narragansett Bay towns such as Jamestown, Newport, Middletown and Little Compton. These data are available for download in both LAS file format and as tiled DEMs. Both collections are provided in the Rhode Island State Plane – feet coordinate system.

Imagery

There is also one new collection of coastal orthoimagery available for download via the Imagery section of this website. While these data do not provide full coverage of Rhode Island, this high-resolution, 35-cm GSD, 4-band imagery will be useful in a variety of ways.

These data were collected by NOAA simultaneously with the NOAA topobathy LiDAR, and provide coverage of RI’s south coast, as well as coverage of the southern portion of Narragansett Bay towns such as Jamestown, Newport, Middletown and Little Compton. These data are available in both GeoTIFF and JPEG2000 file formats, and are provided in the Rhode Island State Plane – feet coordinate system.

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