OT Blog

Tools for Lidar Point Cloud Filtering / Classification

A relatively common question from OpenTopography users is how they can filter or classify a lidar dataset that was delivered by the data provider without ground (bare earth) returns differentiated from vegetation returns. The B4 lidar dataset, which covers the southern San Andreas and San Jacinto faults is a good example of a dataset where the lack of classification can be problematic for users, especially those working at higher elevations where vegetation can be dense.

Video Highlights Applications of Oregon Lidar Data

This well done ~10 minute video from Oregon Public Broadcasting's Field Guide does an excellent job of highlighting the various earth science applications for the lidar data being collected by the Oregon Department of Geology and Mineral Industries' (DOGAMI)

SciNews: A resource for incorporating earth science current events into the classroom

Erin Dimaggio, an ASU grad student working in part with OT Co-I Ramon Arrowsmith, has just announced an education and outreach project - SciNews - that she is working on as part of her ASU/NASA Space Grant.

USGS Mount St. Helens LiDAR Poster

The USGS has released a beautiful poster of Mount St. Helens created from high-resolution LiDAR topography data. The poster is USGS General Information Product 116 and is freely available for download in PDF format at either 17x22 inches or 32x42 inches.

EGU 2011 sessions on high-resolution topography and LiDAR

Now that the 2010 AGU meeting is over, it is time to start thinking about the 2011 European Geoscience Union General Assembly in Vienna, Austria, April 3-8, 2011. The EGU abstract submission deadline is January 10th, 2011.

EGU 2011 Session - Digital Landscapes: Quantitative Interrogation & Use

Via Paolo Tarolli, an announcement about a session at this year's European Geoscience Union Meeting in Vienna. The session emphasizes analysis techniques for high-resolution digital elevation models (DEMs) of Earth, seafloor or planetary landscapes:

Dear colleagues,

National Academy report on Precise Geodetic Infrastructure

Earlier this month a National Research Council report entitled Precise Geodetic Infrastructure: National Requirements for a Shared Resource was published via the National Academies Press.

NOAA-Funded Project Mapping Offshore San Andreas Fault

A NOAA expedition that concluded this past Sunday focused on mapping the offshore extent of the San Andreas fault at high-resolution. Using sonar mapping and other imaging and geophysical technologies, the NOAA-funded group, led by Chris Goldfinger from Oregon State University, is building a 3D model of the fault that they hope will reveal information about earthquake behavior as well as the role of the fault in undersea life:

Call for NCALM Student LiDAR Seed Proposals

The National Center for Airborne Laser Mapping (NCALM) has issued their annual call for proposals to their graduate student seed project program. This program collects LiDAR data for up to ten graduate student PIs who require data for their research.

"Close range morphological measurement for the Earth sciences" session at AAG

The International Society for Photogrammetry and Remote Sensing (ISPRS) Working Group V6 is promoting a session at the April, 2011 Association of American Geographers (AAG) annual meeting in Seattle on "

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