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Sediment Flux Through The Yellow River Sediment Routing System
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Book Synopsis Sediment Flux Through the Yellow River Sediment Routing System by : Changxing Shi
Download or read book Sediment Flux Through the Yellow River Sediment Routing System written by Changxing Shi and published by . This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Sediment Flux Through the Yellow River Sediment Routing System" by Changxing, Shi, 師長興, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled 'Sediment Flux through the Yellow River Sediment Routing System' Submitted by SHI Changxing for the degree of Doctor of Philosophy at The University of Hong Kong in August 2002 Sediment fluxes through riverine sediment routing systems are one of the main causes for many environmental problems and disasters, to which the effective solutions should be based on quantification of the sediment fluxes and clarification of related mechanisms. This study probed into the sediment fluxes through one of the largest riverine sediment routing systems in the world, the Yellow River sediment routing system, in a spatial detail of four basic functional cells and on time scales of 0 4 10 -10 years. Investigation of the sediment fluxes was carried out through construction of sediment budgets of the system mainly based on information derived from deposits in the sinks and records of sediment load, and through analyzing some important mechanisms for the characteristics of the constructed sediment fluxes in the system. The dry bulk densities of deposits in various depositional environments in the system were investigated for acquiring reliable sediment budgets from deposits. The sediment budget for about 10 years when the Diaokouhe lobe of the Yellow River delta was formed was 14.510 tones of sediment income distributed into the lower Yellow River, the delta, and the sea by proportions of 33%, 49%, and 18%, respectively. The high proportion of sediment deposition in the delta was associated with the high sediment-sequestering efficiency of the ephemeral sediment-charged hyperpycnal underflows off the river mouth and floods over the delta plain because these two processes tend to arrest all the incoming fine as well as coarse particles. A positive relation exists between the proportion of sediment deposited in the deltaic lobe and sediment discharge. The amount of sediment escaping from the delta displays an exponentially decreasing trend with the distance from the delta front. 11 The sediment budget for the period from 1855 to 1968 was 1.87810 tons of sediment income deposited in the lower reaches and the river delta by proportions of 62% and 32%, respectively. The larger proportion of sediment deposition in the lower reaches was associated with the nonexistence of dykes during the period from 1855 to 1875 and the frequent dyke breaching before 1949. It was found that the percentages of sediment deposition in the delta on two time scales are different because the expanding delta captures the sediments, which were deposited in front of the delta in the earlier periods. The total sediment yield from the source in the Holocene was found to be about 12 810 tons, which was the total mass of sediments accumulated in all the sinks of the system. Using radiocarbon dates in the Huang-Huai-Hai Plain, it was revealed 9 that the annual sediment yield on a 2500-year average increased from 0.6810 tons 9 in the first quarter to 1.0110 tons in the last quarter of the Holocene. Furthermore, it was disclosed that human activities enlarged the sediment yield by a total of about 12 0.310 tons over the past 2500 years and were the cause for the difference between 9 the measured sediment yield of 1.610 t/yr and the predicted natural sediment yield 9 of 0.9510 t/yr in the middle of the last century. DOI: 10.5353/th_b2985194 Subjects:
Book Synopsis Sediment Flux Through the Yellow River Sediment Routing System by : Changxing Shi
Download or read book Sediment Flux Through the Yellow River Sediment Routing System written by Changxing Shi and published by . This book was released on 2002 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sediment Routing Systems by : Philip A. Allen
Download or read book Sediment Routing Systems written by Philip A. Allen and published by Cambridge University Press. This book was released on 2017-09-14 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This cutting-edge summary combines ideas from several sub-disciplines to provide an understanding of sediment routing systems and Earth surface dynamics.
Book Synopsis Sediment Routing Systems by : Philip A. Allen
Download or read book Sediment Routing Systems written by Philip A. Allen and published by Cambridge University Press. This book was released on 2017-09-14 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This cutting-edge summary combines ideas from several sub-disciplines including geology, geomorphology, oceanography and geochemistry to provide an integrated view of Earth surface dynamics in terms of sediment generation, transport and deposition. Introducing a global view of fundamental concepts underpinning source-to-sink studies, it provides an analysis of the component segments which make up sediment routing systems. The functioning of sediment routing systems is illustrated through calculations of denudation and sedimentation as well as the response to external drivers; with the final sections focusing on the stratigraphic record of sediment routing systems. Containing quantitative solutions to a wide range of problems in Earth surface dynamics, it is suitable for graduate students as well as academic and professional researchers; and will enable an understanding of sediment routing systems.
Book Synopsis Sediment Transport by Streams in the Palouse River Basin, Washington and Idaho, July 1961-June 1965 by : P. R. Boucher
Download or read book Sediment Transport by Streams in the Palouse River Basin, Washington and Idaho, July 1961-June 1965 written by P. R. Boucher and published by . This book was released on 1970 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sediment Transport in the Yellow River by : Chih Ted Yang
Download or read book Sediment Transport in the Yellow River written by Chih Ted Yang and published by . This book was released on 1992* with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wave-Forced Sediment Erosion and Resuspension in the Yellow River Delta by : YONGGANG. JIA
Download or read book Wave-Forced Sediment Erosion and Resuspension in the Yellow River Delta written by YONGGANG. JIA and published by Springer. This book was released on 2019-06-04 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in River Sediment Research by : Shoji Fukuoka
Download or read book Advances in River Sediment Research written by Shoji Fukuoka and published by CRC Press. This book was released on 2013-08-15 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sediments, which constitute the surface of the Earth, start their journey to rivers with the energy obtained from rainfalls, fl oods and other natural processes. Due to transport of sediments, rivers develop with various appearances and functions, and play a crucial role in the activities of human beings and the life cycles of other species. River
Author :John S. Rowan Publisher :International Assn of Hydrological Sciences ISBN 13 :9781901502688 Total Pages :630 pages Book Rating :4.5/5 (26 download)
Book Synopsis Sediment Dynamics and the Hydromorphology of Fluvial Systems by : John S. Rowan
Download or read book Sediment Dynamics and the Hydromorphology of Fluvial Systems written by John S. Rowan and published by International Assn of Hydrological Sciences. This book was released on 2006 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2004 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sediment Flux Through the Rio Grande River by : Troy C. Hiatt
Download or read book Sediment Flux Through the Rio Grande River written by Troy C. Hiatt and published by . This book was released on 2010 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate has historically been recognized as an influence on sediment flux and deposition. The North American Monsoon is suggested as the forcing mechanism of deltaic progradational events of the Rio Grande River delta. Interpretations of reflection seismic profiles reveal that eustatic rise in sea-level from the Last Glacial Maximum to present is accompanied by several regressional events of the Rio Grande delta 5.5, 9.5, and 11.5 ka BP. Much of the migration of depositional facies within a delta system is forced by hinterland tectonics and base-level rise and fall. However, we suggest that the movement of facies within the Rio Grande delta system represent climate forcing as the most dominant influence on sediment deposition during this short time period. While dominance of climate influence is possible, the sensitivity of an increase in monsoon precipitation and its effect on sediment flux has not yet been tested. We test monsoonal effects using relationships between sediment flux, river discharge, and precipitation. Heavy water management and withdrawal and complexity of precipitation timing and events within the region make the relationship between precipitation and sediment flux difficult to quantify using modern data sources. Therefore, it is necessary to numerically simulate stream discharge to test potential sensitivities of the system to monsoonal precipitation using a stream discharge model. Precipitation input into the stream discharge model is gathered from a suite of climate model simulation outputs. Suspended sediment flux is derived from the outputs of the flow models using empirically derived sediment rating curves. Results of sediment modeling show that increased precipitation during the monsoon months of July-September, 6 ka BP increased monthly suspended sediment flux by 79 percent. The suite of climate models does not include 9 or 11 ka BP, but we suggest the monsoon may have been stronger during this time based on greater received insolation at these times. This study also shows that duration and intensity of monsoonal precipitation events can more greatly affect stream discharge and sediment flux than increased precipitation with constant storm intensity.
Book Synopsis Remote Sensing Suspended Sediment Concentration in the Yellow River by : Liqin Qu
Download or read book Remote Sensing Suspended Sediment Concentration in the Yellow River written by Liqin Qu and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sedimentation in the Rupnarayan River by : Swapan Kumar Maity
Download or read book Sedimentation in the Rupnarayan River written by Swapan Kumar Maity and published by Springer. This book was released on 2017-11-01 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains the causes, mechanisms and dimension of sedimentation in the Rupnarayan River, which offers a representative example of a tidal river combining fluvial and marine processes. The book is unique in addressing all the hydrodynamic characteristics of the river, especially the tidal impact, sediment load and textural characteristics of the sediments. ; The data presented here was gathered through continuous field monitoring using state-of-the-art techniques and robust laboratory analysis, and will help readers develop a systematic understanding of sedimentation processes. As such, the book offers a valuable resource for all students and researchers conducting research on fluvial geomorphology and sedimentology. In addition, the outcomes it presents will benefit engineers, hydrologists, planners and other authorities affected by a number of aspects related to sedimentation.
Book Synopsis Geology of the China Seas by : Pinxian Wang
Download or read book Geology of the China Seas written by Pinxian Wang and published by Elsevier. This book was released on 2014-06-07 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geology of the China Seas represents the first English-language synthesis of the available research into the geology of the South and East China Seas. Among the marginal basins worldwide, these areas have been the focus of extensive research activities in the last three decades, and are now among the global hot spots in hydrocarbon explorations and scientific investigations. The region is experiencing rapid economic development with the offshore petroleum industry providing approximately one third of the domestic hydrocarbon production for mainland China. Gas hydrates have been successfully recovered from the China Seas for the first time. Over the years, many volumes on the geology of the China Seas have been published in Chinese. Although an increasing number of papers in English have appeared recently, the majority deal with local or regional paleo-environment and sedimentology, and are scattered in different journals. This book brings together this rich data in one resource, particularly that generated by Chinese marine geologists and petroleum geologists, and provides the very first synthesis of the geology off China. The first systematic summary of the geology of the China Seas Includes comprehensive coverage of the South China Sea and the East China Sea, including the Yellow Sea and Bohai Gulf Reviews hundreds of Chinese publications on marine and petroleum geology not currently accessible to the international community
Book Synopsis Sediment Routing in Rivers by : Emmett M. Owens
Download or read book Sediment Routing in Rivers written by Emmett M. Owens and published by . This book was released on 1977 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sediment Transport by : Silvia Susana Ginsberg
Download or read book Sediment Transport written by Silvia Susana Ginsberg and published by IntechOpen. This book was released on 2011-04-26 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sediment transport is a book that covers a wide variety of subject matters. It combines the personal and professional experience of the authors on solid particles transport and related problems, whose expertise is focused in aqueous systems and in laboratory flumes. This includes a series of chapters on hydrodynamics and their relationship with sediment transport and morphological development. The different contributions deal with issues such as the sediment transport modeling; sediment dynamics in stream confluence or river diversion, in meandering channels, at interconnected tidal channels system; changes in sediment transport under fine materials, cohesive materials and ice cover; environmental remediation of contaminated fine sediments. This is an invaluable interdisciplinary textbook and an important contribution to the sediment transport field. I strongly recommend this textbook to those in charge of conducting research on engineering issues or wishing to deal with equally important scientific problems.
Book Synopsis Biogeochemical Dynamics at Major River-Coastal Interfaces by : Thomas Bianchi
Download or read book Biogeochemical Dynamics at Major River-Coastal Interfaces written by Thomas Bianchi and published by Cambridge University Press. This book was released on 2014 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive, state-of-the-art synthesis of biogeochemical dynamics and the impact of human alterations at major river-coastal interfaces for advanced students and researchers.
