Category Archives: Lidar/Imaging
Mapping the Pennsylvania Lake Erie Watershed
Imagery was collected along 77 miles of shoreline to provide a better understanding of Pennsylvania’s natural resources. By Brian Stevens The Pennsylvania Lake Erie Watershed is a substantial part of the world’s largest surface freshwater system, the North American Great Lakes. The watershed is 512 square miles, consisting of 15 major sub-watersheds. It’s estimated that...
Remote Sensing in Yellowstone Park
A consortium demonstrates the value of integrated remote-sensing technologies for studying and monitoring the impacts of climate change using the northern range of Yellowstone National Park as a testing area. By Dr. Olaf Niemann, Dr. Robert Crabtree, and David Brown In 2014, a consortium between environmental scientists and an airborne remote-sensing company was awarded funding...
Geospatial on the Big (and Little) Screen
I get excited anytime I see the tools and technology of the geospatial profession in the media. Positive media exposure to the general public of all things geospatial can be a powerful tool to help build awareness for the profession. Additionally, it helps “build the brand” for the next generation, getting them interested in the...
Sensing Improvements? The Future of Lidar & UAVs
By Neil Sandler What does the future of lidar and UAVs look like in our world? We’re preparing this issue of xyHt just as we return from the important International LiDAR and Mapping Forum (ILMF) in Denver. Coincidentally, this issue will be widely distributed at the SPAR 3D conference and expo in Houston this April...
Back to Dinosaur Ridge
Close-range 3D photogrammetry solves mystery of 100-million-year-old dinosaur tracks. Back in the summer of 2014, I visited Dinosaur Ridge, just west of Denver, Colorado, as part of a demonstration of close-range photogrammetry given by CAE Mining, which uses the technology in its volumetric mine site analysis software. Dinosaur Ridge has become one of the world’s...
Caught Mobile Mapping
Above: Using a mobile mapping system, Construction CAD Solutions can generate high-accuracy point cloud data–in multiple views, as shown above and at left–to assist in its utility design function. Mobile mapping: A Chicago firm uses lidar innovation to survey for fiber infrastructure–for hundreds of miles. By Larry Trojak The ability to identify, accept, and then...