As is the tradition, OpenTopography will be active at the upcoming American Geophysical Union fall meeting, December 5-9, 2011 in San Francisco. As we've done in the past, we'll have a booth in the exhibit hall and several scientific presentations that highlight the OpenTopography system and related research and development work.
OpenTopography is pleased to announce the release of two new lidar point cloud datasets. Both datasets can be accessed via the OpenTopography "Find Data" interface.
Andrews Experimental Forest and Willamette National Forest LiDAR (Aug 2008):
A revised set of data products for the Lake Tahoe Basin lidar dataset are now available via OpenTopography. This updated release addresses specific issues related to lake level elevation in the hyro-enforced bare earth surface model. Specifically, the data vendor, Watershed Sciences, reprocessed the hydro-enforced surface so that "all lakes were lowered to the lowest identified shoreline elevation to ensure a constant elevation equal to the shoreline elevation.
UPDATE Sept 9, 12 pm: All OpenTopography systems should now be up. The visualization server may be intermittently unavailable due to residual networking issues caused by the Southern California power outage.
OpenTopography will be intermittently unavailable starting at 12 pm Pacific time on Thursday, September 8th, 2011. We will be physically relocating OpenTopography servers to a new rack location in the San Diego Supercomputer Center machine room. We anticipate certain components of OpenTopography to be unavailable during this migration and expect the outage to last several hours on Thursday afternoon.
UPDATE: The OpenTopography outage caused by loss of power on the UCSD campus has been resolved. Thanks for your patience.
On account of an unplanned power outage at the San Diego Supercomputer Center, certain OpenTopography services are down as of 4:45 pm Pacific on Friday August 5th. We are monitoring the situation and will restore OpenTopography services once power has been restored. Thank you for your patience.
Additional information from the Teton Conservation District on the lidar point cloud data released by OpenTopography last week:
NEWS RELEASE:
New Teton County, Wyoming LiDAR Data Available Online
OpenTopography is pleased to announce the release of four new lidar datasets. This release includes data from two airborne lidar surveys and a pair of terrestrial laser scanning (TLS) collections. The new datasets:
The OpenTopography team is pleased to announce the release of version 3.3 of the OpenTopography system. This release includes numerous user interface and system enhancements as well as bug fixes. The most prominent update in v 3.3 from the perspective of users and our data partners is that we've now made the "roles" of groups involved in a dataset collection more prominent.
We're pleased to formally announce the open source release of the OpenTopography-developed Points2Grid algorithm for Digital Elevation Models generation from lidar point cloud data. Points2Grid is a robust and scalable local gridding tool for processing LIDAR point cloud data to DEMs. The algorithm uses a local gridding method to compute grid cell elevation using a neighborhood defined around each cell based on a search radius provided by the user.
