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Erosion and sedimentation during the September 2015 flooding of the Kinu River, central Japan

Erosional and sedimentary features associated with flooding have been documented in both modern and past cases. However, only a few studies have demonstrated the relationship between these features and the corresponding hydraulic conditions that produced them, making it difficult to evaluate the mag...

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Autores principales: Dan Matsumoto, Sawai, Yuki, Yamada, Masaki, Namegaya, Yuichi, Shinozaki, Tetsuya, Takeda, Daisuke, Fujino, Shigehiro, Tanigawa, Koichiro, Nakamura, Atsunori, Pilarczyk, Jessica E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5039755/
https://www.ncbi.nlm.nih.gov/pubmed/27677769
http://dx.doi.org/10.1038/srep34168
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author Dan Matsumoto,
Sawai, Yuki
Yamada, Masaki
Namegaya, Yuichi
Shinozaki, Tetsuya
Takeda, Daisuke
Fujino, Shigehiro
Tanigawa, Koichiro
Nakamura, Atsunori
Pilarczyk, Jessica E.
author_facet Dan Matsumoto,
Sawai, Yuki
Yamada, Masaki
Namegaya, Yuichi
Shinozaki, Tetsuya
Takeda, Daisuke
Fujino, Shigehiro
Tanigawa, Koichiro
Nakamura, Atsunori
Pilarczyk, Jessica E.
author_sort Dan Matsumoto,
collection PubMed
description Erosional and sedimentary features associated with flooding have been documented in both modern and past cases. However, only a few studies have demonstrated the relationship between these features and the corresponding hydraulic conditions that produced them, making it difficult to evaluate the magnitude of paleo-flooding. This study describes the characteristics associated with inundation depth and flow direction, as well as the erosional and sedimentary features resulting from the disastrous flooding of the Kinu River, central Japan, in September 2015. Water levels rose rapidly due to heavy rainfall that eventually overtopped, and subsequently breached, a levee in Joso City, causing destructive flooding on the surrounding floodplain. Distinctive erosional features are found next to the breached levee, while depositional features, such as a sandy crevasse-splay deposit are found further away from the breach. The deposit can be divided into three units based on sedimentary facies. The vertical and lateral changes of these sedimentary facies may be the result of temporal and spatial changes associated with flow during the single flooding event. These observations and quantitative data provide information that can be used to reveal the paleohydrology of flood deposits in the stratigraphic record, leading to improved mitigation of future flooding disasters.
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spelling pubmed-50397552016-09-30 Erosion and sedimentation during the September 2015 flooding of the Kinu River, central Japan Dan Matsumoto, Sawai, Yuki Yamada, Masaki Namegaya, Yuichi Shinozaki, Tetsuya Takeda, Daisuke Fujino, Shigehiro Tanigawa, Koichiro Nakamura, Atsunori Pilarczyk, Jessica E. Sci Rep Article Erosional and sedimentary features associated with flooding have been documented in both modern and past cases. However, only a few studies have demonstrated the relationship between these features and the corresponding hydraulic conditions that produced them, making it difficult to evaluate the magnitude of paleo-flooding. This study describes the characteristics associated with inundation depth and flow direction, as well as the erosional and sedimentary features resulting from the disastrous flooding of the Kinu River, central Japan, in September 2015. Water levels rose rapidly due to heavy rainfall that eventually overtopped, and subsequently breached, a levee in Joso City, causing destructive flooding on the surrounding floodplain. Distinctive erosional features are found next to the breached levee, while depositional features, such as a sandy crevasse-splay deposit are found further away from the breach. The deposit can be divided into three units based on sedimentary facies. The vertical and lateral changes of these sedimentary facies may be the result of temporal and spatial changes associated with flow during the single flooding event. These observations and quantitative data provide information that can be used to reveal the paleohydrology of flood deposits in the stratigraphic record, leading to improved mitigation of future flooding disasters. Nature Publishing Group 2016-09-28 /pmc/articles/PMC5039755/ /pubmed/27677769 http://dx.doi.org/10.1038/srep34168 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Dan Matsumoto,
Sawai, Yuki
Yamada, Masaki
Namegaya, Yuichi
Shinozaki, Tetsuya
Takeda, Daisuke
Fujino, Shigehiro
Tanigawa, Koichiro
Nakamura, Atsunori
Pilarczyk, Jessica E.
Erosion and sedimentation during the September 2015 flooding of the Kinu River, central Japan
title Erosion and sedimentation during the September 2015 flooding of the Kinu River, central Japan
title_full Erosion and sedimentation during the September 2015 flooding of the Kinu River, central Japan
title_fullStr Erosion and sedimentation during the September 2015 flooding of the Kinu River, central Japan
title_full_unstemmed Erosion and sedimentation during the September 2015 flooding of the Kinu River, central Japan
title_short Erosion and sedimentation during the September 2015 flooding of the Kinu River, central Japan
title_sort erosion and sedimentation during the september 2015 flooding of the kinu river, central japan
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5039755/
https://www.ncbi.nlm.nih.gov/pubmed/27677769
http://dx.doi.org/10.1038/srep34168
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