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Relative elevation model of the White River, Indiana -
Profile through Auckland, NZ lidar point cloud data. Sky Tower at center left. -
1 meter hillshade image of Yaquina Head, Oregon lidar -
D8 flow direction map from 30m SRTM data, Mt. Hood, Oregon -
3D visualization of lidar point cloud data of the Flatirons, Boulder, Colorado -
Black Rock Desert Wilderness, Nevada
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Latest News
Sep 30, 2022
In response to Hurricane Ian, OpenTopography is temporarily removing our academic user restriction on access to USGS 3D Elevation Project (3DEP) lidar datasets for impacted areas in Florida, Georgia, South Carolina, and North Carolina. We hope that...
Sep 28, 2022
A new lidar dataset covering 53 km2 over the McLeod Springs Wash in Nevada is now available on OpenTopography. This lidar dataset was collected by the National Center for Airborne Laser Mapping...
Sep 1, 2022
A new lidar dataset covering 61 km2 over Padre Island, TX is now available on OpenTopography. This lidar dataset was collected by the National Center for Airborne Laser Mapping (NCALM) as...
Latest Blog Posts
Sep 28, 2022
OpenTopography periodically highlights new research that demonstrates the use and reuse of data hosted on or accessed from OpenTopography. All of the results we highlight in this blog post are from Open Access publications.
The impact of river flow on tide dynamics
Many large cities are built in coastal regions,...
Aug 10, 2022
Relative elevation model (REM) of Birch Creek, a tributary to the Yukon River, Alaska, USA. (NW to the left)
Introduction: DEM vs. REM
Topographic data are often represented in the form of a digital elevation model (DEM), where an elevation value is defined at each pixel in a rectangular grid. Spatially, the grid...