Overtopping of coastal structures by tsunami waves

Miguel Esteban, Toni Glasbergen, Tomoyuki Takabatake, Bas Hofland, Shinsaku Nishizaki, Yuta Nishida, Jacob Stolle, Ioan Nistor, Jeremy Bricker, Hiroshi Takagi, Tomoya Shibayama

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Following the 2011 Tohoku Earthquake and Tsunami, Japanese tsunami protection guidelines stipulate that coastal defences should ensure that settlements are shielded from the coastal inundation that would result from Level 1 tsunami events (with return periods in the order of about 100 years). However, the overtopping mechanism and leeward inundation heights of tsunami bores as they hit coastal structures has received little attention in the past. To ascertain this phenomenon, the authors conducted physical experiments using a dam-break mechanism, which could generate bores that overtopped different types of structures. The results indicate that it is necessary to move away from only considering the tsunami inundation height at the beach, and also consider the bore velocity as it approaches the onshore area. The authors also prepared a simple, conservative method of estimating the inundation height after a structure of a given height, provided that the incident bore velocity and height are known.

Original languageEnglish
Article number121
Pages (from-to)1-17
Number of pages17
JournalGeosciences (Switzerland)
Volume7
Issue number4
DOIs
Publication statusPublished - 2017 Dec 1

Fingerprint

coastal structure
overtopping
tsunami
tsunami event
Tohoku earthquake 2011
coastal protection
return period
beach
dam
experiment

Keywords

  • Coastal dyke
  • Dam break
  • Evacuation
  • Overtopping
  • Tsunami

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Overtopping of coastal structures by tsunami waves. / Esteban, Miguel; Glasbergen, Toni; Takabatake, Tomoyuki; Hofland, Bas; Nishizaki, Shinsaku; Nishida, Yuta; Stolle, Jacob; Nistor, Ioan; Bricker, Jeremy; Takagi, Hiroshi; Shibayama, Tomoya.

In: Geosciences (Switzerland), Vol. 7, No. 4, 121, 01.12.2017, p. 1-17.

Research output: Contribution to journalArticle

Esteban, M, Glasbergen, T, Takabatake, T, Hofland, B, Nishizaki, S, Nishida, Y, Stolle, J, Nistor, I, Bricker, J, Takagi, H & Shibayama, T 2017, 'Overtopping of coastal structures by tsunami waves', Geosciences (Switzerland), vol. 7, no. 4, 121, pp. 1-17. https://doi.org/10.3390/geosciences7040121
Esteban, Miguel ; Glasbergen, Toni ; Takabatake, Tomoyuki ; Hofland, Bas ; Nishizaki, Shinsaku ; Nishida, Yuta ; Stolle, Jacob ; Nistor, Ioan ; Bricker, Jeremy ; Takagi, Hiroshi ; Shibayama, Tomoya. / Overtopping of coastal structures by tsunami waves. In: Geosciences (Switzerland). 2017 ; Vol. 7, No. 4. pp. 1-17.
@article{5b4739eb8dfc4f47856f52c0d7661bd2,
title = "Overtopping of coastal structures by tsunami waves",
abstract = "Following the 2011 Tohoku Earthquake and Tsunami, Japanese tsunami protection guidelines stipulate that coastal defences should ensure that settlements are shielded from the coastal inundation that would result from Level 1 tsunami events (with return periods in the order of about 100 years). However, the overtopping mechanism and leeward inundation heights of tsunami bores as they hit coastal structures has received little attention in the past. To ascertain this phenomenon, the authors conducted physical experiments using a dam-break mechanism, which could generate bores that overtopped different types of structures. The results indicate that it is necessary to move away from only considering the tsunami inundation height at the beach, and also consider the bore velocity as it approaches the onshore area. The authors also prepared a simple, conservative method of estimating the inundation height after a structure of a given height, provided that the incident bore velocity and height are known.",
keywords = "Coastal dyke, Dam break, Evacuation, Overtopping, Tsunami",
author = "Miguel Esteban and Toni Glasbergen and Tomoyuki Takabatake and Bas Hofland and Shinsaku Nishizaki and Yuta Nishida and Jacob Stolle and Ioan Nistor and Jeremy Bricker and Hiroshi Takagi and Tomoya Shibayama",
year = "2017",
month = "12",
day = "1",
doi = "10.3390/geosciences7040121",
language = "English",
volume = "7",
pages = "1--17",
journal = "Geosciences (Switzerland)",
issn = "2076-3263",
publisher = "MDPI AG",
number = "4",

}

TY - JOUR

T1 - Overtopping of coastal structures by tsunami waves

AU - Esteban, Miguel

AU - Glasbergen, Toni

AU - Takabatake, Tomoyuki

AU - Hofland, Bas

AU - Nishizaki, Shinsaku

AU - Nishida, Yuta

AU - Stolle, Jacob

AU - Nistor, Ioan

AU - Bricker, Jeremy

AU - Takagi, Hiroshi

AU - Shibayama, Tomoya

PY - 2017/12/1

Y1 - 2017/12/1

N2 - Following the 2011 Tohoku Earthquake and Tsunami, Japanese tsunami protection guidelines stipulate that coastal defences should ensure that settlements are shielded from the coastal inundation that would result from Level 1 tsunami events (with return periods in the order of about 100 years). However, the overtopping mechanism and leeward inundation heights of tsunami bores as they hit coastal structures has received little attention in the past. To ascertain this phenomenon, the authors conducted physical experiments using a dam-break mechanism, which could generate bores that overtopped different types of structures. The results indicate that it is necessary to move away from only considering the tsunami inundation height at the beach, and also consider the bore velocity as it approaches the onshore area. The authors also prepared a simple, conservative method of estimating the inundation height after a structure of a given height, provided that the incident bore velocity and height are known.

AB - Following the 2011 Tohoku Earthquake and Tsunami, Japanese tsunami protection guidelines stipulate that coastal defences should ensure that settlements are shielded from the coastal inundation that would result from Level 1 tsunami events (with return periods in the order of about 100 years). However, the overtopping mechanism and leeward inundation heights of tsunami bores as they hit coastal structures has received little attention in the past. To ascertain this phenomenon, the authors conducted physical experiments using a dam-break mechanism, which could generate bores that overtopped different types of structures. The results indicate that it is necessary to move away from only considering the tsunami inundation height at the beach, and also consider the bore velocity as it approaches the onshore area. The authors also prepared a simple, conservative method of estimating the inundation height after a structure of a given height, provided that the incident bore velocity and height are known.

KW - Coastal dyke

KW - Dam break

KW - Evacuation

KW - Overtopping

KW - Tsunami

UR - http://www.scopus.com/inward/record.url?scp=85036505209&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85036505209&partnerID=8YFLogxK

U2 - 10.3390/geosciences7040121

DO - 10.3390/geosciences7040121

M3 - Article

AN - SCOPUS:85036505209

VL - 7

SP - 1

EP - 17

JO - Geosciences (Switzerland)

JF - Geosciences (Switzerland)

SN - 2076-3263

IS - 4

M1 - 121

ER -