Dave Trask
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The operation profile of floodgates differs substantially from that of lock and weir gates. There are two main reasons for this difference: •. Different objectives: The purpose of lock and weir gates is controlling the water levels on inland waterways. The purpose of floodgates is, as the name says, preventing the intrusion of flood or storm ...
May 25, 2021 · 2.2. Floodgates operation systems. As an archetypal example of flood areas in China, Wuxi had experienced 13 floods from 1983 to 2006 according to historical records and had been witnessed large-scale destruction of human well-being and ecological environment.
Jun 1, 2016 · Floodgates operation is one of the major forms of river regulation in basin development and utilization, and have changed natural structures, processes of running water and associated environments. However, there are few analysis on the impacts of multiple floodgates integration on water environment.
Aug 1, 2018 · Floodgates operation is one of the primary means of flood control in lake development. However, knowledge on the linkages between floodgates operation and nitrogen transformation during the flood season is limited. In this study, water samples from six sampling sites along Lake Xingkai watershed were collected before and after floodgates operation.
May 25, 2021 · For the floodgates operation systems, preventing floods and droughts in a river network for protecting human society based on the safety of the water environment is a challenge. However, researches that focused on the linkage between floodgates operation and water environmental capacity (WEC) is limited.
Aug 1, 2018 · Floodgates operation not only changes nutrient conditions (C, N and P) and water qualities but also influences microbial community composition (Feng et al., 2016). However, a comprehensive understanding of how floodgates operation, microbial communities and environmental factors interact to influence N transformation is lacking in lake ecosystems.
Nov 20, 2023 · Although the floodgates meet their design functions, their existence also affects the material transportation of the rivers and hinders the “connectivity” of the rivers, whether this approach of sacrificing the environment to meet river management is inappropriate requires further exploration by researchers (Bor and Elçi, 2022; Zhang et al ...
Sep 1, 2021 · 0.075. This foodweb model was integrated within the marine transport model to obtain the spatio/temporal variations of 137 Cs concentrations in biota. Only pelagic biota was considered, in a 200 m thick surface layer. The number of Lagrangian particles in the simulation was fixed as NP =5 × 10 6.
Aug 1, 2020 · Thanks to the joint operation of the Regolatore and the Scaricatore facilities, water levels upstream of the VCS can be modified (to some extent, and compatibly with levee elevations) also for fixed flow rate values. This gives additional flexibility to the entire control system if compared with the case of lateral floodgates only.
Jun 1, 2016 · The impact of floodgates operation on river flow and water quality was evaluated. • Floodgates operation reduced water level and river discharge. • Floodgates operation resulted in growth on the concentration of COD and NH 4-N. • Flood control projects are likely to cause water quality deterioration in Taihu Lake.
