Evaluating the impacts of huge waves on rocky shorelines: an essay review of the book ‘Tsunami – The Underrated Hazard’

Felton, Elizabeth A.; Crook, Keith A. W.

doi:10.1016/s0025-3227(03)00086-0

Cited by 72 publications

(37 citation statements)

References 30 publications

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“…minimum) values, and flow speeds at this study site most probably exceeded 8.9 m s −1 but remained below 9.6 m s −1 . Calculated flow velocities for these clasts are thus in the range of or even higher than those in-S. M. May et al: Boulder transport during Supertyphoon Haiyan ferred for recent major tsunamis at the coast (Fritz et al, 2006(Fritz et al, , 2012.…”

Section: Boulder Transport and Flow Velocities Inferred By Inverse Momentioning

confidence: 84%

“…For the block at Bondi Beach the original source gives a weight of "about 235 t" (Süssmilch, 1912, p. 155), whereas multiplication of axes and local rock density of ca. 2.35 g cm −3 (Süssmilch, 1912;Verhoef, 1993) reveals only 211 t. Furthermore, questions about the reliability of the report on the storm wave transport in 1912 have been raised, citing pre-1912 photographs of the boulder in its present position (Cass, 2002;Scheffers et al, 2008 (Süssmilch, 2012); often cited as an example for largest coastal boulder dimensions observed to have been moved during a storm (Felton and Crook, 2003;Switzer and Burston, 2010;Terry et al, 2013); values of dimensions and ρ b were taken from the original source (Süssmilch, 1912); a correction factor of 0.8 derived from recent photography (Boyson, 2012;Google Earth/Digital Globe, 2015) of the boulder was applied for calculation of V corr . (Goto et al, 2011 (Regnauld et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Block and boulder transport in Eastern Samar (Philippines) during Supertyphoon Haiyan

May¹,

Engel²,

Brill³

et al. 2015

Earth Surf. Dynam.

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Abstract. Fields of dislodged boulders and blocks record catastrophic coastal flooding during strong storms or tsunamis and play a pivotal role in coastal hazard assessment. Along the rocky carbonate coast of Eastern Samar (Philippines) we documented longshore transport of a block of 180 t and boulders (up to 23.5 t) shifted upslope to elevations of up to 10 m above mean lower low water level during Supertyphoon Haiyan on 8 November 2013. Initiation-of-motion approaches indicate that boulder dislocation occurred with flow velocities of 8.9-9.6 m s −1 , which significantly exceeds depth-averaged flow velocities of a local coupled hydrodynamic and wave model (Delft3D) of the typhoon with a maximum < 1.5 m s −1 . These results, in combination with recently published phase-resolving wave models, support the hypothesis that infragravity waves induced by the typhoon were responsible for the remarkable flooding pattern in Eastern Samar, which are not resolved in phase-averaged storm surge models. Our findings show that tsunamis and hydrodynamic conditions induced by tropical cyclones may shift boulders of similar size and, therefore, demand a careful re-evaluation of storm-related transport where it, based on the boulder's sheer size, has previously been ascribed to tsunamis.

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Section: Boulder Transport and Flow Velocities Inferred By Inverse Momentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Block and boulder transport in Eastern Samar (Philippines) during Supertyphoon Haiyan

May¹,

Engel²,

Brill³

et al. 2015

Earth Surf. Dynam.

View full text Add to dashboard Cite

show abstract

“…The recent literature often ignores the full suite of characteristics that helps to distinguish transport by tsunami from storm waves (Noormets et al 2002(Noormets et al , 2004Felton and Crook 2003;Williams and Hall 2004). Both tsunamis and storm waves occupy a similar regime near the ocean.…”

Section: The Relative Magnitude Of Geomorphicmentioning

confidence: 99%

Catastrophic Wave Erosion, Bristol Channel, United Kingdom: Impact of Tsunami?

Bryant¹,

Haslett²

2007

The Journal of Geology

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On January 30, 1607, a massive wave from the ocean surged up Bristol Channel in the United Kingdom, flooding more than 500 km2 of lowland along 570 km of coast. It killed 2000 people and is considered Britain's worst natural disaster on land. The wave occurred on a fine day and surprised inhabitants. Contemporary descriptions of the event have many of the characteristics of accounts of recent catastrophic tsunamis. Geomorphic evidence for tsunamis in the channel can be found in the form of transported and imbricated boulders, bedrock sculpturing on coastal platforms and ramps, and, at isolated locations, wholesale erosion of the coastal landscape. Hydrodynamic calculation of the height of the tsunami and flow velocities can be derived from boulder dimensions. Tsunami wave height increased from 4 m in the outer Bristol Channel to more than 6 m within the inner Severn Estuary. Theorized flow velocities range between 11.8 and 18.1 m s1, increasing up the estuary. Under topographic enhancement, these depths and velocities may be sufficient to generate bedrock sculpturing, which is indeed observed at a few locations on rocky headlands in the channel. Interpolation of the amount of cliff retreat at Dunraven Bay indicates that an imbricated boulder train was deposited by tsunami sometime between 1590 AD and 1672 AD, a time span that encompasses the January 30, 1607, event. A B S T R A C TOn January 30, 1607, a massive wave from the ocean surged up Bristol Channel in the United Kingdom, flooding more than 500 km 2 of lowland along 570 km of coast. It killed 2000 people and is considered Britain's worst natural disaster on land. The wave occurred on a fine day and surprised inhabitants. Contemporary descriptions of the event have many of the characteristics of accounts of recent catastrophic tsunamis. Geomorphic evidence for tsunamis in the channel can be found in the form of transported and imbricated boulders, bedrock sculpturing on coastal platforms and ramps, and, at isolated locations, wholesale erosion of the coastal landscape. Hydrodynamic calculation of the height of the tsunami and flow velocities can be derived from boulder dimensions. Tsunami wave height increased from 4 m in the outer Bristol Channel to more than 6 m within the inner Severn Estuary. Theorized flow velocities range between 11.8 and 18.1 m s Ϫ1

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“…Coastal boulder accumulations are often mentioned in the literature, in different tectonic and morphological settings (Oak, 1984;McKenna, 1990;Felton and Crook, 2003). They appear as isolated mega-boulders on coastal platforms (e.g.…”

Section: Introductionmentioning

confidence: 99%

Boulder accumulations related to storms on the south coast of the Reykjanes Peninsula (Iceland)

2010

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Evaluating the impacts of huge waves on rocky shorelines: an essay review of the book ‘Tsunami – The Underrated Hazard’

Cited by 72 publications

References 30 publications

Block and boulder transport in Eastern Samar (Philippines) during Supertyphoon Haiyan

Block and boulder transport in Eastern Samar (Philippines) during Supertyphoon Haiyan

Catastrophic Wave Erosion, Bristol Channel, United Kingdom: Impact of Tsunami?

Boulder accumulations related to storms on the south coast of the Reykjanes Peninsula (Iceland)

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