Among the world’s most biodiverse ecosystems, tropical dry forests serve as vital carbon sinks and are teeming with life that supports human existence….
Volume 14 Issue 4
December 2024
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FEATURES
12.30.2024
Century-Old Maps of Ochlockonee Shoal Updated with Topobathymetric Lidar
New survey combats dangers to shipping in Florida’s Big Bend
A pronounced shallow area, known as the Ochlockonee Shoal, lies in the Gulf of Mexico about eight miles off the Big Bend of…
12.30.2024
Airborne Lidar: A Tutorial for 2025
Part I: Lidar basics
Since the beginning of the 21st century, airborne lidar (light detection and ranging) has entirely revolutionized topographic data acquisition. National mapping agencies around…
12.30.2024
Finding Connecticut’s Historic Buildings In High-Density Lidar Point Clouds
Today’s point densities and processing tools facilitate new applications
Most familiar lidar applications, such as terrain modeling, land development, and hydrology, focus on the bare-earth model, a digital terrain model (DTM), which…
12.30.2024
Next-Generation Geiger-Mode Lidar Systems
3DEO advancing Geiger-mode lidar technology
Geiger-mode (GM) lidar has been operationally proven by the US military since 20101 and is seeing renewed interest in the commercial geospatial world….
12.30.2024
The U.S. Geodesy Crisis
Editor’s Note: The following appeared in the September 2023 of the Hydrographic Review Panel newsletter The current decline in the geodetic capacity in…
COLUMNS
From the Editor
12.30.2024
Lidar is Everywhere!
We’ve packed this edition, our annual Airborne Technology Showcase, with five feature articles that illustrate lidar’s growing capabilities—perhaps more importantly, how it has…
Full Coverage
12.30.2024
The Case For (and Against) Propagated Uncertainty in Aerial Topographic Lidar, Continued!
Total Propagated Uncertainty must take into account the relationships between the datums defined by the ground control points and the inertial navigation system,…