The abundance of herbaceous vegetation in grassy ecosystems—which cover >25% of the world's land surface—is highly variable and impacts key ecological processes including carbon sequestration and support for grazing wildlife and livestock. Here, we present a method for using high‐resolution, UAV‐borne Light Detection and Ranging (LiDAR) to estimate ...
Tyler C. Coverdale +3 more
wiley +1 more source
Research on LiDAR-Assisted Optimization Algorithm for Terrain-Aided Navigation of eVTOL. [PDF]
Zhang G, Zhou J, Duan Z, Zhao W.
europepmc +1 more source
DuckNet: an open‐source deep learning tool for waterfowl species identification in UAV imagery
Using drones with thermal‐RGB sensors and a deep learning model (RetinaNet with ResNet‐50), we surveyed non‐breeding waterfowl across restored wetlands in the Mississippi Alluvial Valley. Our model, DuckNet, achieved high accuracy and offers an open‐source, customizable tool for automated waterfowl detection to support conservation monitoring ...
Zack Loken +4 more
wiley +1 more source
Analysis of Doline Microtopography in Karst Mountainous Terrain Using UAV LiDAR: A Case Study of 'Gulneomjae' in Mungyeong City, South Korea. [PDF]
Kim J, Hong I.
europepmc +1 more source
This study develops a novel application of UAV‐LiDAR and Red Green Blue (RGB) data and network analysis to enhance our understanding of boreal forest succession. The results indicate that tree height and spectral variables are the most influential predictors of plant functional type in random forest algorithms, and high overall accuracies were attained.
Léa Enguehard +9 more
wiley +1 more source
GEDTM30: global ensemble digital terrain model at 30 m and derived multiscale terrain variables. [PDF]
Ho YF +6 more
europepmc +1 more source
UAVs unveil the role of small scale vegetation structure on wader nest survival
In this study, we combine high‐resolution vegetation structural metrics derived from unmanned aerial vehicle (UAV) imagery with on‐field wader nest survival monitoring. We show that the immediate vegetation height and heterogeneity within a 2‐meter buffer surrounding the clutch of the recorded ground‐nesting wader species positively influenced its ...
Miguel Silva‐Monteiro +5 more
wiley +1 more source
The Application of VR Technology in Engineering Issues: Geodesy and Geomatics, Mining, Environmental Protection and Occupational Safety. [PDF]
Strzałkowski P +5 more
europepmc +1 more source
Terrain Analysis Using Digital Elevation Models
Tarboton, David G. +4 more
openaire +1 more source
Ground‐truthing of satellite imagery to assess seabird colony size: A test using Adélie penguins
Adélie penguin colony size can be estimated from space using very high‐resolution (VHR; 0.3–0.6 m resolution) satellite imagery due to the contrast between their guano stain and the surrounding terrain. Our study assessed the utility of VHR imagery for making indirect assessments of changes in colony size.
Alexandra J. Strang +9 more
wiley +1 more source

