Results 101 to 110 of about 9,618 (272)

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert   +5 more
wiley   +1 more source

The Transboundary Reach of the Columbia River: Cottonwood Colonization Followed Flow Moderation From the Columbia River Treaty Dams

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT The Columbia river provides the largest Pacific outflow in the Western Hemisphere and the greatest hydropower production of any North American river system. For hydropower generation and flood risk management, four massive water storage reservoirs followed the Columbia River Treaty between Canada and the United States, with three Canadian dams,
Colleen A. Phelan   +2 more
wiley   +1 more source

Adaptive Path Following Control System for Unmanned Surface Vehicles [PDF]

open access: diamond, 2020
Chenguang Liu   +3 more
openalex   +1 more source

Investigating boreal forest successional stages in Alaska and Northwest Canada using UAV‐LiDAR and RGB and a community detection network

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
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

MODELS OF CURRENT IMAGES THAT ARE FORMED BY THE COMBINED CORRELATION-EXTREMAL NAVIGATION SYSTEM OF A NON-FLAMMABLE AIRCRAFT

open access: yesSučasnì Informacìjnì Tehnologìï u Sferì Bezpeki ta Oboroni, 2018
A refinement of the current image model has been accomplished, which are formed by separate channels of the combined correlation-extreme navigation system depending on the spatial position of the unmanned aerial vehicle and its changes.
Oleg M. Vorobiov   +2 more
doaj  

Autonomous Unmanned Surface Vehicle for Water Surface Monitoring [PDF]

open access: yesTransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, 2020
Vladimir Nikishin   +2 more
openaire   +1 more source

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