Beach erosion of Omori-hama, Hakodate City, Hokkaido, Japan PDF Download
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Author: Ryoshichi Komukai
Publisher:
ISBN:
Category :
Languages : ja
Pages : 215
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Author: Ryoshichi Komukai
Publisher:
ISBN:
Category :
Languages : ja
Pages : 215
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Author: Ryōshichi Komukai
Publisher:
ISBN:
Category :
Languages : un
Pages : 366
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Author:
Publisher:
ISBN:
Category : Coastal sediments
Languages : en
Pages : 164
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Book Description
Author: Mohamed T. El-Ashry
Publisher:
ISBN:
Category : Aerial photography in geology
Languages : en
Pages : 456
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Author: Takaaki Uda
Publisher: World Scientific
ISBN: 9814277126
Category : Science
Languages : en
Pages : 429
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Book Description
Beaches in Japan have been eroding since the 1970s as a result of the artificial land alterations. Approximately 3000 fishing ports and 1000 commercial ports have been built nationwide, as well as 2532 large dams being constructed in the upstream basins of large rivers. Due to the port and dam developments, fluvial sand supply has significantly reduced resulting in shoreline recession around the river mouths. Continuous sand supply along the coastline has also been obstructed by the port breakwaters. The formation of wave shelter zone by the port breakwaters induce longshore sand transport, thereby leading to an accretion of large amount of sand in the wave shelter zone and erosion in the surrounding area. Thus, almost all causes of the beach erosion in Japan are due to anthropogenic factors. The exact situation of the beach erosion has never been clear in literatures that are written in Japanese, or in English. Coastal engineers can and should learn from these results, otherwise the same situation and problems, which were induced by excessive coastal development without protection measures and due attention given to nearby coasts, will recur throughout the world. Textbooks on coastal engineering, that were already published, describe only the theoretical fundamentals of the subject, but lack the practical perspectives and field studies. The book examines many coastal areas as examples, highlighting the various erosion factors which should be avoided elsewhere globally. This book was first published in Japanese in 2004, and was translated into English by the present author.
Author: Takaaki Uda
Publisher: World Scientific
ISBN: 9813146265
Category : Technology & Engineering
Languages : en
Pages : 547
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Book Description
Beaches in Japan have been eroding since the 1970s because of artificial land alterations and unsustainable coastal development. Almost all causes of the beach erosion in Japan are due to anthropogenic factors — as a result of human activity. This book presents the state of the beaches throughout Japan, looking at the current reality and the classification of causes of beach erosion using real-life, illustrated examples. It then goes on to look at practical models which can be used to predict changes to different types of beaches, and concludes with investigation of beach erosion as a wider structural problem. Lessons learnt show the manner in which excessive coastal development without clearly identified measures for beach protection can have widespread global ramifications.This second edition presents new findings from field studies carried out on Japanese beaches, along with the development and improvement of the numerical model presented previously. In addition to the first edition, six new examples of the beach erosion in Japan are included, as is new analysis of the BG model (a model for predicting based on Bagnold's concept), which can be applicable to various field problems.Originally published in Japanese (2004), this updated version gives clear practical guidance to coastal engineers working to prevent irreversible beach erosion and sustainable coastal development policy.
Author: Tōkyō Daigaku. Kōgakubu
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 1488
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Author: Pitt L. Fitzgerald
Publisher:
ISBN:
Category : Mound-builders
Languages : en
Pages : 138
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Author: Nihon Yunesuko Kokunai Iinkai
Publisher:
ISBN:
Category : Oceanography
Languages : en
Pages : 200
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Author: International Geographical Union. Commission on Coastal Sedimentation
Publisher:
ISBN:
Category : Coasts
Languages : en
Pages : 164
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