Browsing by Author "Paravath, K."

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A Study on Morphodynamic Nature of Muthalapozhi Fishery Harbour in Kerala Using Geospatial Approach
(Springer Science and Business Media Deutschland GmbH, 2023) Paravath, K.; John, A.; Nasar, T.
It is crucial to monitor the dynamics of any fragile coastal stretch on a regular basis. Shorelines on both sides of Muthalapozhi tidal inlet, which is located along Kerala coast in India, were modified after the construction of breakwaters for a fishing harbour. The fishing harbour work was initiated in 2002. Severe erosion at the immediate North of the breakwater and choking of harbour mouth due to spit formation was observed. The construction of modified breakwaters began in 2013, after resolving the deficiencies in the first phase. Coastal morphology needs to be further analysed to check the adequacy of the breakwaters. An attempt to study the dynamicity of coastal morphology of Muthalapozhi Harbour using geospatial approach is reported in this paper. In response to the breakwater construction, End Point Rate (EPR) and Linear Regression Rate (LRR) are calculated using Digital Shoreline Analysis System (DSAS) in ArcGIS software. The results indicate that high accretion with a maximum rate of 209Â m/year in the year 2019 is observed on the immediate southern side of the south breakwater. Â© 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
A study on shore-line dynamics during and post-construction of breakwaters in kasaragod fishing harbour
(Springer Science and Business Media Deutschland GmbH, 2021) Chaitanya, V.K.; Nasar, T.; Paravath, K.
Coast belonging to one particular stretch happens to be versatile because of its dynamicity. This dynamicity is accounted because of both natural and man-made activities. Hence, it is necessary to monitor any fragile coastal stretchâ€™s dynamicity in a temporal basis. In this study, an attempt is made to study the dynamicity of coastal morphology using geospatial and numerical approach. Shore-line on both sides of Kasaragod River firth, laterally Karnataka coast of the India, has modified following construction of breakwaters for fishing harbour. The breakwaters were constructed between 2010 and 2015 after which a severe change is observed in shore-line. Construction flaws were reported as a result of which strong waves were formed leading to the difficulty in launching boats into the sea. Coastal morphology needs to be further analysed to propose a more scientific and lasting solution. Shore-line is extracted from field surveyed data (supplied by Department of Harbour Engineering, Kerala). To ensure the forecast end point rate (EPR) and linear regression rate (LRR) for shore-line data, digital shore-line analysis (DSAS) technique was applied and compiled for up to 2017 in response to the construction of a pair of breakwaters at river inlet. Â© Springer Nature Singapore Pte Ltd 2021.
Impact of Estuarine Breakwaters on Adjacent Shorelines at Muthalapozhy Harbour in Kerala
(Institute of Electrical and Electronics Engineers Inc., 2022) Paravath, K.; Nasar, T.
A shoreline is a boundary between the land and the ocean, is prone to periodic changes on account of various dynamic factors such as wave characteristics, coastal orientation, currents, and bathymetry. As a result, shoreline location varies continuously with respect to time. Shoreline change is the direct consequence of coastal erosion and accretion, along with the effect of nearshore currents. Shorelines on both sides of Muthalapozhy tidal inlet, which is located along Kerala coast in India, was modified following the construction of breakwaters for developing a fishery harbour. The fishing harbour work was initiated in 2002. Severe erosion at the immediate north of the north breakwater and choking of harbour mouth due to spit formation was observed. The construction of modified breakwaters began in 2013, after resolving the deficiencies in the first phase. An attempt to study the shoreline oscillations at Muthalapozhy harbour using numerical approach is reported in this paper Â© 2022 IEEE.
Shoreline Changes Around Three Estuarine Harbours on Kerala Coast in India
(Seventh Sense Research Group, 2023) Paravath, K.; Thuvanismail, N.
The shoreline, the land and water boundary is subjected to periodic changes due to different dynamic factors like, bathymetry, wave characteristics, currents, and coastal orientation. Coastline variation leads to erosion and accretion phenomena on the coast. In the present study, the coastal changes around three estuarine harbours along Kerala coast in India are analysed by using numerical method. The impact of harbour constructions on shoreline are assessed from this study. Mike 21 SW and LITPACK modules are used to predict the shoreline changes at these three estuarine harbour sites along Kerala coast. The analyses on coastline oscillations around three estuarine harbours show significant impact of harbour constructions on adjacent coast. © 2023 Seventh Sense Research Group®.