Results 11 to 20 of about 52,927 (253)

Intensity Harmonization for Airborne LiDAR [PDF]

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
Constructing a point cloud for a large geographic region, such as a state or country, can require multiple years of effort. Often several vendors will be used to acquire LiDAR data, and a single region may be captured by multiple LiDAR scans. A key challenge is maintaining consistency between these scans, which includes point density, number of returns,
David Jones, Nathan Jacobs
openaire   +2 more sources

A New Airborne Doppler Lidar for Boundary Layer Research & LES-Based Simulation [PDF]

EPJ Web of Conferences, 2020
Airborne Doppler lidar measurements are a valuable tool in meteorological research. A new airborne Doppler lidar system has been developed jointly by the Karlsruhe Institute of Technology (KIT) and the Technical University of Brunswick.
Gasch P., Wieser A., Kalthoff N., Corsmeier U., Feuerle T., Kottmeier C.   +5 more
doaj   +1 more source

Airborne LiDAR Strip Adjustment Method Based on Point Clouds with Planar Neighborhoods

Remote Sensing, 2023
Airborne light detection and ranging (LiDAR) data are increasingly used in various fields such as topographic mapping, urban planning, and emergency management.
Zhenxing Sun, Ruofei Zhong, Qiong Wu, Jiao Guo   +3 more
doaj   +1 more source

GPS-derived ground deformation (2005–2014) within the Gulf of Mexico region referred to a stable Gulf of Mexico reference frame [PDF]

Natural Hazards and Earth System Sciences, 2016
This study investigates current ground deformation derived from the GPS geodesy infrastructure in the Gulf of Mexico region. The positions and velocity vectors of 161 continuous GPS (CGPS) stations are presented with respect to a newly established local ...
J. Yu, G. Wang
doaj   +1 more source

Nearshore Benthic Mapping in the Great Lakes: A Multi-Agency Data Integration Approach in Southwest Lake Michigan

Remote Sensing, 2021
The Laurentian Great Lakes comprise the largest assemblage of inland waterbodies in North America, with vast geographic, environmentally complex nearshore benthic substrate and associated habitat.
Molly K. Reif, Brandon S. Krumwiede, Steven E. Brown, Ethan J. Theuerkauf, Joseph H. Harwood   +4 more
doaj   +1 more source

Airborne lidar imaging of salmon [PDF]

Applied Optics, 2004
Lidar images of adult salmon are presented. The lidar system is built around a pulsed green laser and a gated intensified CCD camera. The camera gating is timed to collect light scattered from the turbid water below the fish to produce shadows in the images. Image processing increases the estimated contrast-to-noise ratio from 3.4 in the original image
James H, Churnside, James J, Wilson
openaire   +2 more sources

Terrestrial and Airborne Lidar to Quantify Shrub Cover for Canada Lynx (Lynx canadensis) Habitat Using Machine Learning

Remote Sensing, 2023
The Canada lynx is listed as a threatened species, and as such, the identification and conservation of lynx habitats is of significant concern. Lynxes require areas with high amounts of horizontal cover made up of ground vegetation. Lidar offers a robust
Jonathan L. Batchelor, Andrew T. Hudak, Peter Gould, L. Monika Moskal   +3 more
doaj   +1 more source

Clear Waters, Stronger Depths: Advancing Bathymetric Lidar Through Community Practices [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The science of mapping beneath the water's surface with lasers is no longer novel, but its relevance has never been greater. Over the past decade, bathymetric lidar has evolved from a niche tool into a diverse ecosystem of sensors and operators, tailored
N. D. Johnson, J. M. Wozencraft, C. L. Macon   +2 more
doaj   +1 more source

UAS Hyperspatial LiDAR Data Performance in Delineation and Classification across a Gradient of Wetland Types

Drones, 2022
Wetlands play a critical role in maintaining stable and productive ecosystems, and they continue to be at heightened risk from anthropogenic and natural degradation, especially along the rapidly developing Atlantic Coastal Plain of North America. As such,
Narcisa Gabriela Pricope, Asami Minei, Joanne Nancie Halls, Cuixian Chen, Yishi Wang   +4 more
doaj   +1 more source

Targeted Observations with an Airborne Wind Lidar [PDF]

Journal of Atmospheric and Oceanic Technology, 2005
Abstract This study investigates the possibilities and limitations of airborne Doppler lidar for adaptive observations over the Atlantic Ocean. For the first time, a scanning 2-μm Doppler lidar was applied for targeted measurements during the Atlantic “The Observing System Research and Predictability Experiment” (THORPEX) Regional ...
Weissmann, Martin, Busen, Reinhold, Dörnbrack, Andreas, Rahm, Stephan, Reitebuch, Oliver   +4 more
openaire   +3 more sources