Results 21 to 30 of about 600 (156)

LSPIV analysis of ship-induced wave wash

open access: yesExperiments in Fluids, 2022
AbstractShip-induced wave wash affects the hydromorphological and ecological state of rivers through various mechanisms. The direct proximity of the riverbank is usually the most exposed, as the hydrodynamic stresses are the highest in these shallow water areas.
Gábor Fleit, Sándor Baranya
openaire   +1 more source

On the use of LSPIV-based free software programs for the monitoring of river: testing the PIVlab and the FUDAA-LSPIV with synthetic and real image sequences [PDF]

open access: yes, 2020
<p>The development of new image-based techniques is allowing a radical change in the environmental monitoring field. The fundamental characteristics of these methods are related to the possibility of obtaining non-intrusive measurements even in adverse circumstances, such as high flow conditions, which may seriously threaten the ...
Dario Pumo   +3 more
openaire   +2 more sources

An Evaluation of Image Velocimetry Techniques under Low Flow Conditions and High Seeding Densities Using Unmanned Aerial Systems

open access: yesRemote Sensing, 2020
Image velocimetry has proven to be a promising technique for monitoring river flows using remotely operated platforms such as Unmanned Aerial Systems (UAS).
Sophie Pearce   +13 more
doaj   +1 more source

Efficiency in river discharge measurement: combining Chiu’s method with particle image velocimetry techniques [PDF]

open access: yesRBRH
This study evaluated the efficiency of combining Large-Scale Particle Image Velocimetry (LSPIV) with Chiu’s entropy method to estimate river discharge in the Brazilian semi-arid region.
Rodrigo Mendes Rodrigues   +2 more
doaj   +1 more source

Estimación del caudal a partir de la técnica de velocimetría por imágenes de partículas a gran escala aplicado en flujo a superficie libre

open access: yesGaceta Técnica, 2021
Este estudio tiene como objetivo estimar el caudal a partir de la técnica de velocimetría por Imágenes de Partículas a Gran Escala en flujo a superficie libre. El trabajo consistió en la grabación de videos en tres campañas, luego estas fueron extraídas
Fredy Sandro Rosas Flores   +2 more
doaj   +6 more sources

A Perspective of Surge Dynamics in Natural Debris Flows Through Pulse‐Doppler Radar Observations

open access: yesJournal of Geophysical Research: Earth Surface, Volume 128, Issue 9, September 2023., 2023
Abstract As a consequence of their natural occurrence and the frequent formation of multiple surges with high sediment loads, debris flows are considered one of the most hazardous gravity‐driven mass movements in mountain regions. Field measurements of surge dynamics are an essential link in the chain of understanding fundamental process dynamics and ...
Tobias Schöffl   +5 more
wiley   +1 more source

Assessing different imaging velocimetry techniques to measure shallow runoff velocities during rain events using an urban drainage physical model [PDF]

open access: yesHydrology and Earth System Sciences, 2021
Although surface velocities are key in the calibration of physically based urban drainage models, the shallow water depths developed during non-extreme precipitation and the potential risks during flood events limit the availability of this type of data ...
J. Naves   +3 more
doaj   +1 more source

VISION: VIdeo StabilisatION using automatic features selection for image velocimetry analysis in rivers

open access: yesSoftwareX, 2022
VISION is open-source software written in MATLAB for video stabilisation using automatic features detection. It can be applied for any use, but it has been developed mainly for image velocimetry applications in rivers.
Alonso Pizarro   +2 more
doaj   +1 more source

A Method for Analysis of Spatial Uncertainty in Image Based Surface Velocimetry

open access: yesFrontiers in Water, 2022
The use of image based velocimetry methods for field-scale measurements of river surface flow and river discharge have become increasingly widespread in recent years, as these methods have several advantages over more traditional methods.
Seth A. Schweitzer, Edwin A. Cowen
doaj   +1 more source

Use of LSPIV in assessing urban flash flood vulnerability

open access: yesNatural Hazards, 2017
Fil: Guillen, Nicolas Federico. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Cordoba. Instituto de Estudios Avanzados en Ingenieria y Tecnologia. Universidad Nacional de Cordoba. Facultad de Ciencias Exactas Fisicas y Naturales.
Guillén, Nicolás Federico   +3 more
openaire   +2 more sources

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