TY - GEN
T1 - Recovery process of sand spit at the natori river mouth
AU - Watanabe, Kazuya
AU - Tanaka, Hitoshi
N1 - Funding Information:
The authors would like to express their grateful thanks to the Sendai Construction Office, Ministry of Land, Infrastructure and Transport, Japan for their kind offer of the field data. This research was partially supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (B), No. 14350262.
Publisher Copyright:
© 2004, World Scientific. All rights reserved.
PY - 2004
Y1 - 2004
N2 - The Natori River, originates in Miyagi Prefecture, is one of the large and important river in Tohoku District in Japan. In 2002, a significant flood caused by typhoon 0206 with more than 230mm precipitation during two days induced remarkable flushing of the left sand spit at the Natori River mouth. The residential area near the river mouth has been damaged severely four times by flood within these 15 years. In order to protect the river mouth area, embankment has been constructed. After the completion of the construction, however, it is found that the sand spit recovery process has changed from that observed before the construction. In this study, the sand spit recovery process at the Natori River mouth is clarified thorough field measurements and photographs. It can be observed that the time scale of sand spit recovery process is dependent on the river scale. Moreover, it is seen that the sand spit tends to intrude seaward during beginning period after flood and tends to retreat riverward during the later period, as already observed by Uda and Matsuda (1995).
AB - The Natori River, originates in Miyagi Prefecture, is one of the large and important river in Tohoku District in Japan. In 2002, a significant flood caused by typhoon 0206 with more than 230mm precipitation during two days induced remarkable flushing of the left sand spit at the Natori River mouth. The residential area near the river mouth has been damaged severely four times by flood within these 15 years. In order to protect the river mouth area, embankment has been constructed. After the completion of the construction, however, it is found that the sand spit recovery process has changed from that observed before the construction. In this study, the sand spit recovery process at the Natori River mouth is clarified thorough field measurements and photographs. It can be observed that the time scale of sand spit recovery process is dependent on the river scale. Moreover, it is seen that the sand spit tends to intrude seaward during beginning period after flood and tends to retreat riverward during the later period, as already observed by Uda and Matsuda (1995).
KW - Flood
KW - Flushing
KW - Jetty
KW - Natori River
KW - River mouth
KW - Sand spit
KW - Topography change
KW - Typhoon
UR - http://www.scopus.com/inward/record.url?scp=85064191322&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85064191322&partnerID=8YFLogxK
U2 - 10.1142/9789812703040_0054
DO - 10.1142/9789812703040_0054
M3 - Conference contribution
AN - SCOPUS:85064191322
SN - 9789812703040
T3 - Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference
BT - Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference
A2 - Goda, Yoshimi
A2 - Nadaolta, Kazuo
A2 - Kiolta, Wataru
PB - [publishername] World Scientific
T2 - 2nd International Conference on Asian and Pacific Coasts, APAC (WITH CD-ROM) 2003
Y2 - 29 February 2004 through 4 March 2004
ER -