Remotely induced storm effects on the coastal flooding along the southwest coast of India
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 Ind...
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ftdoajarticles:oai:doaj.org/article:157bd34413774eea87f298d01c66168f 2023-07-16T04:01:00+02:00 Remotely induced storm effects on the coastal flooding along the southwest coast of India P.S. Swathy Krishna Valliyil Mohammed Aboobacker Madipally Ramesh L. Sheela Nair 2023-07-01T00:00:00Z https://doi.org/10.1016/j.oceano.2023.03.003 https://doaj.org/article/157bd34413774eea87f298d01c66168f EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S0078323423000271 https://doaj.org/toc/0078-3234 0078-3234 doi:10.1016/j.oceano.2023.03.003 https://doaj.org/article/157bd34413774eea87f298d01c66168f Oceanologia, Vol 65, Iss 3, Pp 503-516 (2023) IASO swells ERA5 winds Indian Ocean Kerala coast Coastal inundation Wave runup Oceanography GC1-1581 article 2023 ftdoajarticles https://doi.org/10.1016/j.oceano.2023.03.003 2023-06-25T00:35:59Z 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. Article in Journal/Newspaper Southern Ocean Directory of Open Access Journals: DOAJ Articles Indian Southern Ocean Oceanologia 65 3 503 516 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
IASO swells ERA5 winds Indian Ocean Kerala coast Coastal inundation Wave runup Oceanography GC1-1581 |
spellingShingle |
IASO swells ERA5 winds Indian Ocean Kerala coast Coastal inundation Wave runup Oceanography GC1-1581 P.S. Swathy Krishna Valliyil Mohammed Aboobacker Madipally Ramesh L. Sheela Nair Remotely induced storm effects on the coastal flooding along the southwest coast of India |
topic_facet |
IASO swells ERA5 winds Indian Ocean Kerala coast Coastal inundation Wave runup Oceanography GC1-1581 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
P.S. Swathy Krishna Valliyil Mohammed Aboobacker Madipally Ramesh L. Sheela Nair |
author_facet |
P.S. Swathy Krishna Valliyil Mohammed Aboobacker Madipally Ramesh L. Sheela Nair |
author_sort |
P.S. Swathy Krishna |
title |
Remotely induced storm effects on the coastal flooding along the southwest coast of India |
title_short |
Remotely induced storm effects on the coastal flooding along the southwest coast of India |
title_full |
Remotely induced storm effects on the coastal flooding along the southwest coast of India |
title_fullStr |
Remotely induced storm effects on the coastal flooding along the southwest coast of India |
title_full_unstemmed |
Remotely induced storm effects on the coastal flooding along the southwest coast of India |
title_sort |
remotely induced storm effects on the coastal flooding along the southwest coast of india |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://doi.org/10.1016/j.oceano.2023.03.003 https://doaj.org/article/157bd34413774eea87f298d01c66168f |
geographic |
Indian Southern Ocean |
geographic_facet |
Indian Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Oceanologia, Vol 65, Iss 3, Pp 503-516 (2023) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0078323423000271 https://doaj.org/toc/0078-3234 0078-3234 doi:10.1016/j.oceano.2023.03.003 https://doaj.org/article/157bd34413774eea87f298d01c66168f |
op_doi |
https://doi.org/10.1016/j.oceano.2023.03.003 |
container_title |
Oceanologia |
container_volume |
65 |
container_issue |
3 |
container_start_page |
503 |
op_container_end_page |
516 |
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1771550384540614656 |