Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Junqiang Xia"'
Channel erosion and its impact on environmental flow of riparian habitat in the Middle Yangtze River
Publikováno v:
Environmental Science and Ecotechnology, Vol 20, Iss , Pp 100403- (2024)
Evaluating environmental flow (EF) is pivotal for conserving and restoring riverine ecosystems. Yet, prevalent EF evaluations presume that a river reach's hydraulic conditions are exclusively governed by inflow discharge, presupposing a state of equi
Externí odkaz:
https://doaj.org/article/777e6dc6b7de40d196b6c43cd89bc541
Publikováno v:
River, Vol 2, Iss 4, Pp 403-420 (2023)
Abstract Due to the high population density and economic property in urban environments, urban flooding can result in substantial economic losses. However, accurate urban flood modeling and assessing the associated damages are challenging due to comp
Externí odkaz:
https://doaj.org/article/749daa5eaba94fb9b52422bde0a172af
Publikováno v:
Water Science and Technology, Vol 85, Iss 4, Pp 1011-1026 (2022)
Motivated by the observation that vortex flow structure was evident in the energy loss at the surcharged junction manhole due to changes of hydraulic and geometrical parameters, a physical model was used to calculate energy loss coefficients and inve
Externí odkaz:
https://doaj.org/article/6d8cedef4a60492d88664fc79204dc79
Autor:
Jingming Hou, Bingyao Li, Yu Tong, Liping Ma, James Ball, Hui Luo, Qiuhua Liang, Junqiang Xia
Publikováno v:
Hydrology Research, Vol 51, Iss 1, Pp 1-16 (2020)
This work introduces an unprecedented flash flood that resulted in nine casualties in Shimen Valley, China, 2015. Through field survey and numerical simulation the causes of the disaster are systematically analyzed, finding that the intense storm, te
Externí odkaz:
https://doaj.org/article/3651bf7de44a42e48f9aa3a26f0c13ac
Publikováno v:
Journal of Flood Risk Management, Vol 13, Iss 4, Pp n/a-n/a (2020)
Abstract Extreme flood events are becoming more frequent and challenging due to climate change. Key objectives of this study are to evaluate different criteria used in assessing the hazard to people during flood events and, once determined, the most
Externí odkaz:
https://doaj.org/article/7dd11c1e2ae64cb483b35cd5e27c1979
Publikováno v:
Remote Sensing, Vol 14, Iss 8, p 1841 (2022)
Using longitudinal control lines and sparse measured cross sections with large spaces, a new method for quickly reconstructing digital terrains in natural riverways is presented. The longitudinal control lines in a natural riverway, mainly including
Externí odkaz:
https://doaj.org/article/9e21f5ca2ce843f7be8846e85372b2d7
Publikováno v:
Frontiers in Earth Science, Vol 8 (2020)
Assessing the performance and capability of drainage pipes is of significance for computing urban flooding. However, drainage-pipe data is not available for most urban areas, therefore raising the problem for computing the drainage capability in an a
Externí odkaz:
https://doaj.org/article/4fd24eb2fc11449a9e70f37fb890b23d
Publikováno v:
Remote Sensing, Vol 13, Iss 9, p 1680 (2021)
The Yellow River (YR) covers three climatic zones including arid region, semi-arid region and temperate monsoon region, with frequent appearance of flow intermittence in the Lower Yellow River (LYR) before 1999. Channel migration occurs frequently in
Externí odkaz:
https://doaj.org/article/abe94af8fa7f4020b63566107c4dbf2b
Publikováno v:
Water, Vol 12, Iss 9, p 2434 (2020)
This paper presents a study of two transport timescales (TTS), i.e., the residence time and exposure time, of a hyper-tidal estuary using a widely used numerical model. The numerical model was calibrated against field measured data for various tidal
Externí odkaz:
https://doaj.org/article/21f1229b15f747758193fefb681a77dc
Publikováno v:
Proceedings of the Institution of Civil Engineers - Water Management. 176:118-131
A one-dimensional morphodynamic model was improved to study the unsteady flow and sediment transport processes in a tail reach of the Yellow River estuary (YRE). In this model, the modified equations for flow hydrodynamics take the effects of sedimen