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A Study on the Characteristics of Sea Waves at the Mandarmani Sea Beach of West Bengal

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Environmental Management and Sustainability in India

Abstract

India has a very long coastline that extends for around 7516.6 km, with the Bay of Bengal in the east, the Indian Ocean in the south and the Arabian Sea in the west. The present study focuses on the characteristics of sea waves in the Mandarmani beach of West Bengal in May 2021 with the aim of quantifying the wave parameters. The data on sea wave parameters have been collected on field with the help of very simple survey instruments. As energy moves across the surface of the ocean, the particle moves in a circular orbit, returning to its original position. In order to comprehend the elliptical nature of the orbital motion in shallow water, the lengths of the semi-major and semi-minor axes have been calculated within a fluid medium. Results show that the length of the semi-minor axis declines with depth as the waves have less impact on sea bed but in shallow water, there is a negligible change in the length of the semi-major axis. Additionally, the shift in pressure causes a change in the length of semi-major and semi-minor axes. The emphasis of this study has been on determining the maximum pressure at which orbital motions are maintained. Near the sea bed, the mean pressure has been calculated to be 12111.49 N/m2 while a mean pressure of 3512.868 N/m2 has been calculated close to the sea surface. Wave power assessments have been widely carried out in recent years. The computation of wave energy and wave power in May 2021 along the Mandarmani beach is another important concern of this work. The renewable energy resources need to be explored to maintain and meet energy demand and reduce dependency on fossil fuels. This study also placed attention on the investigation of the correlation between wave energy and wave height, wave power, and wave velocity. Therefore, the overall analysis aims at sustainable development of the sea side destinations where the use of wave energy can open up alternate avenues of reducing the use of fossil fuels.

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Correspondence to Arijit Majumder .

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Chowdhury, S.R., Majumder, A. (2023). A Study on the Characteristics of Sea Waves at the Mandarmani Sea Beach of West Bengal. In: Sahu, A.S., Das Chatterjee, N. (eds) Environmental Management and Sustainability in India. Springer, Cham. https://doi.org/10.1007/978-3-031-31399-8_8

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