Category Archives: Lidar/Imaging

Species information was derived from hyperspectral imagery and then applied to the lidar point cloud for this image.

Fusing Data on Doomed Ash Trees

By using fused data gathered with lidar and hyperspectral imaging, a geospatial services company helped a large utility to identify 90% of ash trees with the potential to fall into their power lines—in a timeframe that wouldn’t have been possible without the use of remote sensing. By Ian Berdie, Zach Raymer, and Mia Chen Remote-sensing...

This lidar image was taken over Lake Casitas, California.

Lidar vs.Wildfires in Southern California

After the 2018 wildfires in Southern California, lidar data was collected to enable risk-mapping assessment and planning, to identify fuel-load reduction programs, and to escalate the emergency assessment of post-fire debris flow hazards. Featured image: This lidar image was taken over Lake Casitas, California. The data are clear: Natural disasters are on the rise, and...

Making Aerial Lidar Work for Small Businesses

Aerial lidar’s growth has created challenges for small business in the aerial-data collection data; here’s how one company turned them into opportunities. Featured image: Midwest Aerial’s main lidar-flying aircraft. For several decades (1950s -1980s), the commercial mapping industry operated in a relatively stable technology environment. While numerous and important technological advances were made (most notably...

Members of the Geodetic Engineering Department.

Teaching Roots and Research at the University of the Philippines

One of Southeast Asia’s oldest surveying schools is promoting the use of geospatial technologies and thriving in the digital age. When Louie Balicanta walks inside the high-ceilinged corridors of Malcolm Hall on his way to teach land surveying, he knows how much responsibility rests on his shoulders. Not only is he an assistant professor at...

Adam Zweig

The Many Facets (and Faces) of Surveying

Surveyors have traditionally done a variety of essential and interesting work—and they continue to do so. We’ve asked surveyors from various work disciplines what inspires them. To get an idea of where we are going, it’s important to stop and take a look at where we have been. This rings especially true for those of...

xyHt April 202 cover banner

Another Curveball: Coronavirus and Geospatial

Out of the blue, we’re facing another curveball. The current global concern (COVID-19, aka the Coronavirus) was generally not anticipated, and the situation changes daily. It was hoped that, by the time this is published, the situation would have calmed dramatically—but sadly it has taken a turn for the worse. Thus far disruptions have only...