Articles written in Journal of Earth System Science
Volume 131 All articles Published: 11 October 2022 Article ID 0220 Research article
A numerical modelling approach for beach erosion forecast during the southwest monsoon season
R RATHEESH P G REMYA RITESH AGRAWAL CH VENKITESWARLU B GIREESH P AMARENDRA T M BALAKRISHNAN NAIR A S RAJAWAT
Identifying coastal stretches that are likely to erode under high wave conditions is essential to the coastal
management community in addressing beach erosion-related issues. The manuscript presents a case study
to predict erosion of a selected beach located on the eastern Indian coast during the 2018 southwest (SW)
monsoon season. The pre-monsoon beach topography surveyed using DGPS is used as the initial topographic
condition in the morphological model. The model simulates subsequent beach erosion during the
SW monsoon season, which is forced by forecast waves. Beach erosion advisories that classify the beach as
eroding, accreting and no change are disseminated with a lead period of 10 days. During the SW monsoon
period, we have monitored the beach using the dumpy level, and the beach topography during the postmonsoon
is generated using DGPS surveyed profiles and are used for model validation. The beach area
under erosion observed from the model result is homologous with the
$\bullet$ Beach erosion forecast system for RK Beach, India.
$\bullet$ Forecast system is developed using a combination of WAVEWATCHIII and Xbeach.
$\bullet$ Beach erosion advisories during monsoon period.
Volume 132, 2023
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