Topic
River engineering
About: River engineering is a research topic. Over the lifetime, 435 publications have been published within this topic receiving 10286 citations. The topic is also known as: Channelisation.
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TL;DR: In this paper, the authors report an anthropogenically driven increase in mean suspended sediment concentrations in the Mississippi River below New Orleans, from a modeled 350 mg L21 (174 3 109 kg yr21) at the end of the 18th century to a measured maximum of 675 mg L 21 (348 3109 kg yr 21) in the late 19th century, followed by a sharp reduction, and then a period of stabilization after 1962.
Abstract: The Mississippi River basin was developed for agriculture at an unprecedented scale and intensity within the last 200 yr. These changes favored erosion and sediment transport, which were subsequently reduced by soil conservation practices, the trapping of sediment behind large reservoirs, and channel engineering. We discuss the relationship between sediment loading and the growth, loss, and stability of wetlands in the Mississippi River birdfoot delta (MRBD). We report an anthropogenically driven increase in mean suspended sediment concentrations in the Mississippi River below New Orleans, from a modeled 350 mg L21 (174 3 109 kg yr21) at the end of the 18th century to a measured maximum of 675 mg L21 (348 3 109 kg yr21) in the late 19th century, followed by a sharp reduction, and then a period of stabilization at 157 mg L21 (91 3 109 kg yr21) after 1962. Changes in wetland area of the MRBD over the past two centuries reflect variations in sediment supply during periods of increasing, decreasing, and stable sediment loading, and are distinct from wetland loss patterns in other areas of coastal Louisiana. The rapid growth of the MRBD until the 1930s, which has been used as a reference for one of the world’s largest wetland restoration efforts, may not be a suitable archetype for the majority of the coast. Additionally, future variation in sediment supply to the MRBD would likely change the total wetland area of the MRBD.
47 citations
TL;DR: The Indus River/Delta system is highly dynamic, reflecting the impacts of monsoonal-driven floods and cyclone-induced storm surges, earthquakes ranging up to Mw −7.8, and inundations from tsunamis as mentioned in this paper.
47 citations
TL;DR: In this article, the relationship between flow and mobile bed material was studied by measuring bedload transport rates, bed and water surface topography, and longitudinal and transverse velocity patterns at 22 cross-sections.
45 citations
TL;DR: The Atchafalaya River in southcentral Louisiana is of geomorphic interest because of the large volumes of flow and sediment transported and its role as a major floodway for the lower Mississippi River, notwithstanding its potential to become an avulsion pathway at the Old River as mentioned in this paper.
45 citations
TL;DR: In Korea, the focus on river management and work has shifted from flood control only, to both flood control and riverine habitat conservation and restoration, and the progress of each research area is briefly described with a representative picture in each topic.
45 citations