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dc.contributor.authorMishra, P.K.
dc.contributor.authorManiMurali, R.
dc.contributor.authorDwivedi, D.
dc.contributor.authorHossain, S.K.A.
dc.contributor.authorKumar, S.S.
dc.contributor.authorFrancis, S.
dc.contributor.authorRai, R.
dc.date.accessioned2025-07-04
dc.date.accessioned2025-07-04T06:45:24Z
dc.date.available2025-06-04
dc.date.available2025-07-04T06:45:24Z
dc.date.issued2025
dc.identifier.citationMarine Geology, Vol. 487; 2025;article no:107590
dc.identifier.issn0025-3227
dc.identifier.otherhttps://www.sciencedirect.com/science/article/pii/S002532272500115X
dc.identifier.urihttps://doi.org/10.1016/j.margeo.2025.107590
dc.identifier.urihttp://drs.nio.res.in/drs/handle/2264/9475
dc.descriptionIF2023=2.2
dc.description.abstractThis study investigates the morphodynamics and climatic influences on twenty-seven embayed beaches along the central west coast of India utilizing a comprehensive framework that combines in-situ field observations and remote sensing. These coastal features were classified for the first time using an embayment morphometric parameter (?e) derived from the embayment area (Ae) and indentation (a). This method enabled the categorization of the embayments into three distinct classes - Class 1 (open/exposed), Class 2 (semi-exposed), and Class 3 (Semi-closed/sheltered). Field measurements of beach profiles were conducted for sixteen accessible embayed beaches, focusing on seasonal and annual volumetric changes. The results showed a significant reduction in beach volume from February to September, likely caused by strong monsoonal waves, with partial recovery observed from September to February. To study long-term changes, we analyzed changes in area over three decades (1990�2023) using satellite images. This analysis revealed a maximum erosion of 81.72�m at Mirya and maximum accretion of 62.5�m at Undi, while Net Shoreline Movement (NSM) trends reveal that eight embayments, including Palshet, Hedavi, and Vengurla, are undergoing critical shoreline retreat. Various climate factors, including rising sea levels, increased frequency of cyclones, wave power, and swells, were analyzed to track the causes. The results indicated an increase in regional sea levels, cyclone activity, and wave power, which corresponded with the observed erosion patterns along the central west coast of India. Anthropogenic impacts were also noted,the construction of breakwaters and jetties has caused significant alterations. This study highlights, how human interventions can disrupt natural coastal processes. A key finding of the study is that embayments, which appear stable on seasonal and annual timescales, are dynamic and unstable over the decadal scale.
dc.languageen
dc.publisherElsevier
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleImpacts of climate change on the morphodynamics of embayed beaches along the Central West Coast of India
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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