Results 31 to 40 of about 901 (167)
Bedload transport analysis using image processing techniques [PDF]
, 2022 Bedload transport is an important factor to describe the hydromorphological processes of fluvial systems. However, conventional bedload sampling methods have large uncertainty, making it harder to understand this notoriously complex phenomenon.
Baranya S. +5 more
core +1 more source
Increasing LSPIV performances by exploiting the seeding distribution index at different spatial scales [PDF]
Journal of Hydrology, 2021 Image-based approaches for surface velocity estimations are becoming increasingly popular because of the increasing need for low-cost river flow monitoring methods. In this context, seeding characteristics and dynamics along the video footage represent one of the key variables influencing image velocimetry results.
Silvano Fortunato Dal Sasso +4 more
openaire +3 more sources
Moving Aircraft River Velocimetry (MARV): Framework and Proof‐of‐Concept on the Tanana River
Water Resources Research, Volume 59, Issue 2, February 2023., 2023 Abstract Information on velocity fields in rivers is critical for designing infrastructure, modeling contaminant transport, and assessing habitat. Although non‐contact approaches to measuring flow velocity are well established, these methods assume a stationary imaging platform.
Carl J. Legleiter +3 more
wiley +1 more source
Advances in Civil Engineering, Volume 2023, Issue 1, 2023., 2023 Uncrewed aerial systems (UASs) are becoming very popular in the domain of water resource mapping and management (WRMM). Being a cheaper and quicker option capable of providing high temporal and spatial resolution data, UAS has become a much sought‐after platform for remote sensing. Still, their application in the field is in its early stage. This paper
Vishal Mishra +9 more
wiley +1 more source
Remote determination of the velocity index and mean streamwise velocity profiles [PDF]
, 2017 Author Posting. © American Geophysical Union, 2017. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Water Resources Research 53 (2017): 7521–7535,
Cowen, Edwin, Johnson, Erika D.
core +1 more source
A Method for Analysis of Spatial Uncertainty in Image Based Surface Velocimetry
Frontiers 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
Verification and Application of Surface-Velocity Measurement Method Using LSPIV [PDF]
Journal of Korea Water Resources Association, 2004 The purpose of this study is to verify LSPIV technique. Verification was made using moving cart with known velocity. The difference of velocity values obtained using these methods are within 5％, which means that LSPIV can be used in the field with ...
Young-Geun Kim +2 more
openaire +1 more source
Multi-camera large-scale particle image velocimetry [PDF]
, 2020 Large-scale particle image velocimetry (LSPIV) has been widely used for quantifying the velocity distribution of environmental water surfaces, especially river flows.
101205, Tsubaki, Ryota
core +1 more source
Large Scale Infrared-Based Remote Sensing of Turbulence Metrics in Surface Waters: Going Beyond Mean Flow [PDF]
, 2021 In recent years field-scale applications of image-based velocimetry methods, often referred to as large scale particle image velocimetry (LSPIV), have been increasingly deployed.
Cowen, Edwin Alfred +1 more
core +2 more sources
Journal of Flood Risk Management, 2021 In order to investigate the relationship between water surface velocity and breach hydrograph, a series of dam breach experiments with a generalised landslide dam were conducted in an open channel of 50 m × 4 m × 2 m.
Jie Liu +4 more
doaj +1 more source