Create a MyOpenTopo account to access a personalized workspace, see real-time status updates for your jobs, access previously submitted jobs, and increase your job size limits. You do not need an OpenTopography account to access and process lidar datasets.
- Discover and access high resolution topography datasets via the Find Topography Data map interface.
- View a listing of available high resolution topography datasets available via OpenTopography along with detailed metadata information.
Available datasets include: OpenTopography lidar coverage (red outlines on data map), community contributed data (purple outlines), USGS 3D Elevation Program (3DEP)* data (green outlines), in addition to four different global datasets that cover the globe at a variety of resolutions.
* USGS 3DEP data access and processing via OpenTopography is only available to our academic research and education community. K-12 teachers, international academics, and informal educators can apply for access here.
OpenTopography offers these on-demand processing tools for hosted datasets:
Point Cloud Selection & Filtering: Crop point clouds to your area of interest, choose pre-classified classifications, and download the point cloud as a .las, .laz or .ascii file.
Raster Selection: Crop a digital elevation model (DEM) to your area of interest and export as a .geotiff, .IMG, or .ascii file.
Digital Elevation Models: Customize a DEM generation using the popular TIN or a local gridding method (i.e., mean elevation) to create a raster grid from a point cloud topography dataset.
Contour Lines: Creates contour vectors taking the original TIN generated DEM and smoothing depending on user-input to blur or soften grid data to remove high-frequency noise.
Topographic Hillshades: Generate topographic hillshades at the preferred illumination angle with options to add color relief and produce a Google Earth KMZ.
3D Point Cloud Visualization: Visualize color, intensity, or classification of a point cloud on your internet browser. Create height profiles and make measurements.
Vertical Differencing: Measure landscape change by differencing DEMs to see topographic change from processes including urban growth, flooding, landslides, wildfires, and earthquakes.
3D Differencing: Detect horizontal and vertical change when the landscape shifts during earthquakes and landslides.
Hydrology tools: Analyze the hydrology with TauDEM (Terrain analysis using DEMs) by creating hydrologically conditioned DEMs and calculating flow paths, among other tools.
Canopy Height Model: Calculate the height of trees and other structures above ground for forestry applications.
The OpenTopography Tool Registry provides a community populated clearinghouse of software, utilities, and tools oriented towards high-resolution topography data (e.g. collected with lidar technology) handling, processing, and analysis.
View our FAQ Page for answers to some of the most frequently asked questions related to OpenTopography.