Point Cloud Data Distribution and Processing

OpenTopography harnesses cyberinfrastructure developed at the San Diego Supercomputer Center to allow users to access and process point cloud data on the fly for an area of interest. The goal of the system is to provide a web-based toolset that can democratize access to massive and potentially computationally challenging community lidar topography datasets. Please use the links below to access lidar data hosted by OpenTopography.

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1   2016 Solana Beach, CA Bluff Characterization Survey  
 
Description:
The bluff along the City of Solana Beach's (California) shore was scanned using ground-based static lidar technology between August and September of 2016. The primary objective of the Solana Beach Bluff Characterization Survey is to develop a baseline condition that can be compared to future surveys, allowing the City to monitor the bluff condition and to quantify coastal erosion. The information can also support coastal planning and engineering studies. The project consisted of 63 scans, all independently registered to surveyed control points. The parameters of the scans were set so the density of the scan point clouds was no more than 3' minimum spacing on the bluff with a positional certainty of better than 3'. The polygon encloses an area of approximately 0.01 km2.
Horiz. CoordinatesNAD83(NSRS2007) / California Zone 6 (ftUS) [EPSG: 3500]
Vertical CoordinatesNAVD88 [EPSG: 5703]
Point Density9826.79pts/m2
Area0.1km2
2   El Mayor-Cucapah Earthquake Rupture Terrestrial Laser Scan-Site 2  
 
Description:
This dataset captures primary rupture features along a ~200m long stretch of the 4 April 2010 M 7.2 El Mayor-Cucapah earthquake rupture in northern Baja California, Mexico. This dataset covers in higher resolution sections of the rupture captured by the El Mayor-Cucapah Earthquake (4 April 2010) Rupture Lidar Scan. The scans were collected along the northern Borrego fault in a single day (20 April 2010) 16 days following the earthquake. This particular dataset covers a section of the rupture along a bedrock rangefront where displacements are highly concentrated along a single fault, with some localized antithetic normal slip. Depending on how the data is processed and visualized, cm- to m-scale fault scarps, fault free-face striations, displacements defined by offset geomorphic features and cm-scale alluvial fan textures, and a paleo-fault scarp are all visible. Vegetation classification was performed manually in an immersive 3D virtual reality CAVE. This dataset includes intensity-scaled point-coloring. Surveyors: Peter Gold and Austin Elliott, UC Davis
Horiz. CoordinatesUTM z11N WGS84 (ITRF 2000) [EPSG: 32611]
Vertical CoordinatesNAVD88 (GEOID09) [EPSG: 5703]
Point Density1415.40pts/m2
Area0.02km2
3   El Mayor-Cucapah Earthquake Rupture Terrestrial Laser Scan-Site 1  
 
Description:
This dataset captures primary rupture features along a ~200m long stretch of the 4 April 2010 M 7.2 El Mayor-Cucapah earthquake rupture in northern Baja California, Mexico. This dataset covers in higher resolution sections of the rupture captured by the El Mayor-Cucapah Earthquake (4 April 2010) Rupture Lidar Scan. The scans were collected along the northern Borrego fault over a period of 4 days beginning 16 April 2010, 12 days following the earthquake. This particular dataset covers a section of the rupture across a raised alluvial fan surface where displacements are relatively concentrated along a single fault, with some localized antithetic normal and reverse slip. Depending on how the data is processed and visualized, cm- to m-scale fault scarps, fault free-face striations, displacements defined by offset geomorphic features and cm-scale alluvial fan textures are all visible. Vegetation classification was performed manually in an immersive 3D virtual reality CAVE. This dataset includes intensity-scaled point-coloring. Surveyors: Peter Gold and Austin Elliott, UC Davis
Horiz. CoordinatesUTM z11N WGS84 (ITRF 2000) [EPSG: 32611]
Vertical CoordinatesNAVD88 (GEOID09) [EPSG: 5703]
Point Density2846.15pts/m2
Area0.02km2
4   Dixie Valley Fault Rupture Terrestrial Laser Scanning Dataset-Site 1  
 
Description:
This dataset covers a site near the center of the 16 December 1954 M 6.8 Dixie Valley earthquake rupture in central Nevada, United States. At this site, a linear debris flow chute draining the Stillwater Range front on to a shallowly sloping alluvial fan is offset by both synthetic and antithetic fault scarps that together form an intervening graben. Vegetation classification was performed manually in an immersive 3D virtual reality CAVE. This dataset includes intensity-scaled point-coloring. Surveyor: Peter Gold
Horiz. CoordinatesUTM z11N WGS84 (ITRF 2000) [EPSG: 32611]
Vertical CoordinatesNAVD88 [EPSG: 5703]
Point Density2221.44pts/m2
Area0.01km2
5   Dixie Valley Fault Rupture Terrestrial Laser Scanning Dataset-Site 2  
 
Description:
This dataset covers a site near the southern extent of the 16 December 1954 M 6.8 Dixie Valley earthquake rupture in central Nevada, United States. At this site, a nearly linear debris flow chute that drains the Stillwater Range front on to a shallowly sloping alluvial fan is offset by both synthetic and antithetic fault scarps that together form an intervening graben. Vegetation classification was performed manually in an immersive 3D virtual reality CAVE. This dataset includes intensity-scaled point-coloring. Surveyor: Peter Gold
Horiz. CoordinatesUTM z11N WGS84 (ITRF 2000) [EPSG: 32611]
Vertical CoordinatesNAVD88 [EPSG: 5703]
Point Density9245.98pts/m2
Area0.01km2
6   Landers Surface Rupture Terrestrial Laser Scanning Dataset  
 
Description:
Tectonic geomorphic markers such as fault scarps of recent and historic earthquakes form the basis for paleoseismic studies that aim to understand the spatiotemporal distribution of earthquakes, their magnitudes, and recurrences. This terrestrial laser scanning dataset was acquired to survey a section of the 1992 Landers earthquake fault scarp. For more details, visit: http://lidar.asu.edu/KnowledgeBase/Landers_TLS/Landers_TLS_analysis.html
Horiz. CoordinatesUTM Zone 11 N WGS84 Meters [EPSG: 32611]
Vertical CoordinatesWGS84 Ellipsoid
Point Density230.80pts/m2
Area0.04km2
7   Carrizo Plain Terrestrial Laser Scanning Dataset  
 
Description:
Tectonic geomorphic markers such as deflected and offset stream channels form the basis for paleoseismic studies that aim to understand the spatiotemporal distribution of earthquakes, their magnitudes, and recurrences. This terrestrial laser scanning dataset includes a scanned stream channel that was deflected by the San Andreas Fault in the Carrizo Plain, California.
Horiz. CoordinatesUTM Zone 11 N WGS84 Meters [EPSG: 32611]
Vertical CoordinatesWGS84 Ellipsoid
Point Density15558.27pts/m2
Area0.01km2
8   Granite Dells Terrestrial Laser Scanning Dataset  
 
Description:
Precariously balanced rocks (PBRs) are pedestal rocks that are used as negative indicators for earthquake-generated strong ground motions to physically validate seismic hazard analyses. To help understand the geologic and geomorphic settings in which PBRs form, terrestrial laser scanning was used to scan a small population of PBRs that are preserved on hillslopes adjacent to a small stream channel.
Horiz. CoordinatesUTM Zone 12 N WGS84 Meters [EPSG: 26912]
Vertical CoordinatesNAVD88 (Geoid 03) [EPSG: 5703]
Point Density497.77pts/m2
Area0.01km2
For information on the size of the datasets above see our dataset metrics page and for usage information see our usage metrics page.