FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2005671348> ?p ?o ?g. }

• W2005671348 endingPage "190" @default.
• W2005671348 startingPage "178" @default.
• W2005671348 abstract "This study deals with the uncertainty of large-scale particle image velocimetry (LSPIV) measurements in rivers. LSPIV belongs to the methods of local remote sensing of rivers, like Radar- and Lidar-based techniques. These methods have many potential advantages, in comparison with classical river gauging, but they have a fundamental drawback: they are indirect measurements. As such they need to be assessed in reference to direct measurements. A first validation method consists in the comparison of LSPIV measurements with classic gauging results, in field and laboratory experiments. Unfortunately, in both cases, it is impossible in practice to control all the parameters and to distinguish the impact of the various error sources. In the present study we propose a more theoretical assessment of LSPIV potential through numerical simulation. The idea is simply to mathematically formulate the present state of knowledge of the measurement including both the physics of the phenomenon (the illuminated river) and the physics of the sensor (the camera and the PIV tracking). The dilemma about when to start this type of simulation is the following: The simulation is satisfactory if we can validate it which means to be able to compare simulations and observations over a wide range of conditions. The simulation is useful to get preliminary insights about the most important measurement conditions to organize validation studies. Our simulator is composed of three blocks: The river block represents the unidirectional river flow by the association of the EDM model and a theoretical vertical velocity profile giving a 3D velocity distribution. This hydraulic model is complemented by features representing free surface tracers, the illumination of the free-surface (shadows and sun reflection) and the effect of the wind. The camera block transforms the river state parameters into raster images according to the intrinsic and extrinsic parameters of the camera. The LSPIV analysis block performs a classical LSPIV analysis, including geometric transformation of the images, PIV analysis to obtain a surface velocity field, and discharge computation. We tried to keep a good balance between the different blocks of the simulator (i.e. not to make one component much more sophisticated than the others). The simulator was partly tested during the development of its different blocks, and then globally validated. It reproduced well the variability observed in the field LSPIV experiments conducted with the real-time continuous system of Hauet et al. [Hauet, A., Kruger, A., Krajewski, W., Bradley, A., Muste, M., Creutin, J.D., Wilson, M., 2008. Experimental system for real-time discharge estimation using an image-based method. Journal of Hydrologic Engineering]. The simulator can also be used to check different scenarios and to assess relative importance of the different sources of error. With two examples, we illustrate this capability of the simulator to assess the relative weight of a given error source and to test a new configuration of measurement." @default.
• W2005671348 created "2016-06-24" @default.
• W2005671348 creator A5056550169 @default.
• W2005671348 creator A5061577507 @default.
• W2005671348 creator A5088631520 @default.
• W2005671348 date "2008-01-01" @default.
• W2005671348 modified "2023-10-04" @default.
• W2005671348 title "Sensitivity study of large-scale particle image velocimetry measurement of river discharge using numerical simulation" @default.
• W2005671348 cites W1481514733 @default.
• W2005671348 cites W1535754082 @default.
• W2005671348 cites W1585654380 @default.
• W2005671348 cites W1974949702 @default.
• W2005671348 cites W1997709831 @default.
• W2005671348 cites W2006907724 @default.
• W2005671348 cites W2023537970 @default.
• W2005671348 cites W2035045033 @default.
• W2005671348 cites W2045998034 @default.
• W2005671348 cites W2048565888 @default.
• W2005671348 cites W2067447215 @default.
• W2005671348 cites W2076335520 @default.
• W2005671348 cites W2106913415 @default.
• W2005671348 cites W2111459752 @default.
• W2005671348 cites W2118944048 @default.
• W2005671348 cites W2132047719 @default.
• W2005671348 cites W2137400896 @default.
• W2005671348 cites W2146580545 @default.
• W2005671348 cites W2331946696 @default.
• W2005671348 doi "https://doi.org/10.1016/j.jhydrol.2007.10.062" @default.
• W2005671348 hasPublicationYear "2008" @default.
• W2005671348 type Work @default.
• W2005671348 sameAs 2005671348 @default.
• W2005671348 citedByCount "69" @default.
• W2005671348 countsByYear W20056713482012 @default.
• W2005671348 countsByYear W20056713482013 @default.
• W2005671348 countsByYear W20056713482014 @default.
• W2005671348 countsByYear W20056713482015 @default.
• W2005671348 countsByYear W20056713482016 @default.
• W2005671348 countsByYear W20056713482017 @default.
• W2005671348 countsByYear W20056713482018 @default.
• W2005671348 countsByYear W20056713482019 @default.
• W2005671348 countsByYear W20056713482020 @default.
• W2005671348 countsByYear W20056713482021 @default.
• W2005671348 countsByYear W20056713482022 @default.
• W2005671348 countsByYear W20056713482023 @default.
• W2005671348 crossrefType "journal-article" @default.
• W2005671348 hasAuthorship W2005671348A5056550169 @default.
• W2005671348 hasAuthorship W2005671348A5061577507 @default.
• W2005671348 hasAuthorship W2005671348A5088631520 @default.
• W2005671348 hasConcept C121332964 @default.
• W2005671348 hasConcept C127313418 @default.
• W2005671348 hasConcept C127413603 @default.
• W2005671348 hasConcept C144836735 @default.
• W2005671348 hasConcept C146978453 @default.
• W2005671348 hasConcept C153294291 @default.
• W2005671348 hasConcept C15744967 @default.
• W2005671348 hasConcept C177274176 @default.
• W2005671348 hasConcept C19417346 @default.
• W2005671348 hasConcept C196558001 @default.
• W2005671348 hasConcept C199104240 @default.
• W2005671348 hasConcept C202444582 @default.
• W2005671348 hasConcept C204323151 @default.
• W2005671348 hasConcept C207857233 @default.
• W2005671348 hasConcept C21200559 @default.
• W2005671348 hasConcept C24326235 @default.
• W2005671348 hasConcept C2775936607 @default.
• W2005671348 hasConcept C2778755073 @default.
• W2005671348 hasConcept C33923547 @default.
• W2005671348 hasConcept C38349280 @default.
• W2005671348 hasConcept C39432304 @default.
• W2005671348 hasConcept C41008148 @default.
• W2005671348 hasConcept C44154836 @default.
• W2005671348 hasConcept C500300565 @default.
• W2005671348 hasConcept C57879066 @default.
• W2005671348 hasConcept C62520636 @default.
• W2005671348 hasConcept C62649853 @default.
• W2005671348 hasConcept C9652623 @default.
• W2005671348 hasConceptScore W2005671348C121332964 @default.
• W2005671348 hasConceptScore W2005671348C127313418 @default.
• W2005671348 hasConceptScore W2005671348C127413603 @default.
• W2005671348 hasConceptScore W2005671348C144836735 @default.
• W2005671348 hasConceptScore W2005671348C146978453 @default.
• W2005671348 hasConceptScore W2005671348C153294291 @default.
• W2005671348 hasConceptScore W2005671348C15744967 @default.
• W2005671348 hasConceptScore W2005671348C177274176 @default.
• W2005671348 hasConceptScore W2005671348C19417346 @default.
• W2005671348 hasConceptScore W2005671348C196558001 @default.
• W2005671348 hasConceptScore W2005671348C199104240 @default.
• W2005671348 hasConceptScore W2005671348C202444582 @default.
• W2005671348 hasConceptScore W2005671348C204323151 @default.
• W2005671348 hasConceptScore W2005671348C207857233 @default.
• W2005671348 hasConceptScore W2005671348C21200559 @default.
• W2005671348 hasConceptScore W2005671348C24326235 @default.
• W2005671348 hasConceptScore W2005671348C2775936607 @default.
• W2005671348 hasConceptScore W2005671348C2778755073 @default.
• W2005671348 hasConceptScore W2005671348C33923547 @default.
• W2005671348 hasConceptScore W2005671348C38349280 @default.
• W2005671348 hasConceptScore W2005671348C39432304 @default.
• W2005671348 hasConceptScore W2005671348C41008148 @default.

• next