New NCALM lidar data over Yosemite National Park, California

Apr 19, 2021

OpenTopography is pleased to announce the release of a new lidar dataset covering approximately 74 km2 covering the Illilouette Creek basin in Yosemite National Park, California. This dataset was collected for Dr. Sally Thompson at the University of California, Berkeley in order to assess the occurrence and characteristics of post-fire erosion gullies caused by the Empire Fire in the Illilouette Creek basin. Data were collected by NCALM, an NSF-funded center that supports the use of airborne laser mapping technology (a.k.a.

New SRTM15+ Global Bathymetry and Topography Dataset Released

Jan 26, 2021

OpenTopography is pleased to announce the release of the SRTM15+ V2.1 global bathymetry and topography dataset. This dataset is the latest iteration of the SRTM+ digital elevation model (DEM) where the "plus" indicates the addition of ocean bathymetry from shipboard soundings and satellite-derived predicted depths. This DEM is a global elevation grid with a spatial sampling interval of 15 arc seconds (approximately 500 x 500 m pixel size at the equator).

OpenTopography Releases Canopy Height Model Tool

Jan 19, 2021

OpenTopography is happy to announce the release of an on-demand canopy height model tool. Canopy height models are a measurement of the height of trees, buildings, and other structures above the ground topography. This product is used in a variety of forestry applications including tracking vegetation and trees in a forest over time, calculating biomass, and estimating leaf area index.


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