Influence of sediment texture on beach Morphodynamics state

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International Journal of Development Research

Influence of sediment texture on beach Morphodynamics state

Abstract: 

Type of beach sediment is very important in determining what the beach looks like, beside waves, tides and wind factors. Different beaches have different types of sediment texture. Beach classification can be usefull coastal planner to group beaches of similar characteristics and behaviours. This paper aims to explain beach morphodynamic states based on sediment texture in Wright and  Short method, so this aspect will be considered as one of the an important variable. The study use a method of field study, petrography analysis and using Gradistat software package besides past researches study to examine the coastal sediment and topography features along the beach of Lapakaka and Lumpue at Parepare Municipality also Ujung Lero, Tassiwalie, Jampue, Sibo, Kappe, and Maroneng at Pinrang Regency, South Sulawesi, Indonesia. The result indicate that beaches of Tassiwalie, Jampue, Maroneng and Lapakaka shows sediment texture of coarser sand with ranging from 25.2% to 42.4% so that including in beach mophodynamic state of reflective. Meanwhile, beaches of Ujung Lero, Sibo, Lumpue and Kappe including in beach mophodynamic state of disspative where consist a number of fine sand which range from 38.6% to 48.8%. Especially for Lapakaka beach consist of gravel with composition 41.3%.

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