Remotely induced storm effects on the coastal flooding along the southwest coast of India

Swathy Krishna, P.S.; Aboobacker, Valliyil Mohammed; Ramesh, Madipally; Nair, L. Sheela

doi:10.1016/j.oceano.2023.03.003

Artykuł - szczegóły

Tytuł artykułu

Remotely induced storm effects on the coastal flooding along the southwest coast of India

Autorzy

Swathy Krishna P.S. , Aboobacker Valliyil Mohammed , Ramesh Madipally , Nair L. Sheela

Wybrane pełne teksty z tego czasopisma

Identyfikatory

DOI

10.1016/j.oceano.2023.03.003

Warianty tytułu

Języki publikacji

Abstrakty

The southwest coast of India is exposed to long-period swells propagated from the South Indian Ocean during pre- and post-monsoon seasons. Although swells from the Southern Ocean and Atlantic Ocean were identified in the North Indian Ocean, their existence and impact along the southwest coast of India were not well investigated. On 19 March 2019, the Valiyathura-Shangumukham coastal stretch along the southwest coast of India experienced an unexpected coastal inundation without having a prompt forecast/warning, and not induced by a storm/cyclone in its vicinity. The present study investigates the causative forces of this inundation and estimates the wave runup and inundation. The study reveals that an unusual swell system was developed in the Indian-Atlantic-Southern Oceans (IASO) interface during 10–12 March and propagated towards the southwest coast of India. The measured wave spectra off Varkala clearly depicts the presence of long-period swells (Tp>18 s), which dominantly occurred as single-peaked. Wave modelling has been carried out to characterize the wave transformation associated with the “IASO interface swells” along the southern Kerala coast. A wave runup of up to 0.93 m height and a coastal inundation of up to 83 m onshore have been estimated during this event.

Słowa kluczowe

IASO swells Indian Atlantic Southern Oceans swells ERA5 winds Indian Ocean Kerala coast coastal inundation wave runup

Wydawca

Polish Academy of Sciences, Institute of Oceanology
Elsevier

Czasopismo

Oceanologia

Rocznik

2023

Tom

Vol. 65 (3)

Strony

503--516

Opis fizyczny

Bibliogr. 50 poz., fot., wykr.

Twórcy

autor

Swathy Krishna P.S.

National Centre for Earth Science Studies, Thiruvananthapuram, Kerala, India
Cochin University of Science and Technology, Cochin, Kerala, India

autor

Aboobacker Valliyil Mohammed

UNESCO Chair in Marine Sciences, Environmental Science Center, Qatar University, Doha, Qatar

https://orcid.org/0000-0002-0385-6918

autor

Ramesh Madipally

ramesh.madipally@ncess.gov.in

National Centre for Earth Science Studies, Thiruvananthapuram, Kerala, India
Cochin University of Science and Technology, Cochin, Kerala, India

autor

Nair L. Sheela

National Centre for Earth Science Studies, Thiruvananthapuram, Kerala, India

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023). (PL)

Typ dokumentu

Bibliografia

Identyfikator YADDA

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