Abstract
The estuary can be considered as environments characterized by high productivity and uncommensurable ecological value. However, marine ecosystems are also subjected to high human pressures that increase their vulnerability. The aim of this work is to analyze grain size trend of sediment due to the action of the main hydrodynamic condition. The spatial distribution patterns of sediments were monitored according to season. The grain-size trend of surficial sediments revealed a dominant sediment transport trend towards the eastern and south eastern part of study area. This study shows that there is an agreement among sediments path ways, hydrodynamic condition and the sediment spatial distribution in the estuarine environment. The agitation by waves is an important sorting mechanism in the study area. The findings are based on the grain size trend and also corroborated by short term observations of the estuarine sediment dynamics and transport during the monsoon, postmonsoon, summer and premonson seasons in Tirumalairajan River estuary.
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Venkatramanan, S., Chung, S.Y., Ramkumar, T. et al. Grain size trend and hydrodynamic condition of tirumalairajan River estuary, east coast of India. Oceanology 54, 532–540 (2014). https://doi.org/10.1134/S0001437014040134
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DOI: https://doi.org/10.1134/S0001437014040134