Results 1 to 10 of about 163 (140)
Quantifying and Reducing the Operator Effect in LSPIV Discharge Measurements
Water Resources ResearchOperator choices, both in acquiring the video and data and in processing them, can be a prominent source of error in image‐based velocimetry methods applied to river discharge measurements.
G Bodart, Jérôme Le Coz, A Hauet
exaly +6 more sources
Real-Time Measurement of Flash-Flood in a Wadi Area by LSPIV and STIV [PDF]
Hydrology, 2019 Flash floods in wadi systems discharge large volumes of water to either the sea or the desert areas after high-intensity rainfall events. Recently, wadi flash floods have frequently occurred in arid regions and caused damage to roads, houses, and ...
Mahmood M Al-Mamari +2 more
exaly +4 more sources
Laboratory modelling of urban flooding [PDF]
Scientific Data, 2022 Measurement(s) flow depth • Outflow discharge • Surface velocity field • Inflow discharge Technology Type(s) Ultrasonic sensor • Calibrated rating curve Q~H • Large Scale Particle Images Velocity (LSPIV) with a commercial camera LUMIX-GH4 ...
Xuefang Li +5 more
doaj +2 more sources
Measurement of Blood Velocity With Laser Scanning Microscopy: Modeling and Comparison of Line-Scan Image-Processing Algorithms [PDF]
Frontiers in Physiology, 2022 Laser scanning microscopy is widely used to measure blood hemodynamics with line-scans in physiological and pathological vessels. With scans of broken lines, i.e., lines made of several segments with different orientations, it also allows simultaneous ...
Emmanuelle Chaigneau +5 more
doaj +2 more sources
Satellite Video Remote Sensing for Estimation of River Discharge
Geophysical Research Letters, 2023 We demonstrate that river discharge can be estimated by deriving water surface velocity estimates from satellite‐derived video imagery when combined with high‐resolution topography of channel geometry.
Christopher Masafu +2 more
doaj +2 more sources
Flow Measurement in Steep Channels Using Large Scale Particle Image Velocimetry (LSPIV) [PDF]
علوم و مهندسی آبیاری, 2022 Measuring flow discharge in rivers and open channels has always been one of the most important concerns of water sciences experts. The most common flow measurement method in open channels is velocity- area approach.
Farhad Akbarpour +2 more
doaj +1 more source
Remote Sensing, 2021 The accuracy of river velocity measurements plays an important role in the effective management of water resources. Various methods have been developed to measure river velocity.
Wen-Cheng Liu +2 more
doaj +1 more source
Remote Sensing, 2020 In Austria, more than a half of all electricity is produced with the help of hydropower plants. To reduce their ecological impact, dams are being equipped with fish passages that support connectivity of habitats of riverine fish species, contributing to ...
Dariia Strelnikova +7 more
doaj +1 more source
LHB Hydroscience Journal, 2022 Les précipitations courtes et violentes observées sur la Côte d’Azur conduisent souvent à des crues-éclairs sur les bassins versants côtiers : lors de la crue du 2 octobre 2015, un débit de pointe compris entre 185 et 295 m3/s a été estimé sur la Brague ...
Sarah Vigoureux +10 more
doaj +1 more source
EVALUATION OF AIRBORNE IMAGE VELOCIMETRY APPROACHES USING LOW-COST UAVS IN RIVERINE ENVIRONMENTS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Traditional flow velocity measurements in natural environments require contact with the fluid and are usually costly, time-consuming and, sometimes, even dangerous.
F. Ioli +4 more
doaj +1 more source