Identifying the role of initial wave parameters on tsunami focusing

• Autorzy: Aydın B.

Identyfikatory

DOI

10.1007/s11600-018-0147-9

• Języki publikacji: EN

Abstrakty

EN

Unexpected local tsunami amplification, which is referred to as tsunami focusing, is attributed to two different mechanisms: bathymetric features of the ocean bottom such as underwater ridges and dipolar shape of the initial wave itself. In this study, we characterize the latter; that is, we explore how amplitude and location of the focusing point vary with certain geometric parameters of the initial wave such as its steepness and crest length. Our results reveal two important features of tsunami focusing: for mild waves maximum wave amplitude increases significantly with transverse length of wave crest, while location of the focusing point is almost invariant. For steep waves, on the other hand, increasing crest length dislocates focusing point significantly, while it causes a rather small increase in wave maximum.

Słowa kluczowe

EN

tsunami; focusing; dipolar wave; steepness; finite crest length

PL

tsunami; skupienie; fala dipolarna

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2018
• Tom: Vol. 66, no. 3
• Strony: 283--291
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Aydın B.

• Adana Science and Technology University AdanaTurkey

Bibliografia

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