K. Yao, J. Abe, S. B. Bamba, K. E. Konan, K. Aka
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引用次数: 8

摘要

在西部Tombolo海滩和东部Club Nautique海滩之间的5个地点的海滩后部植入11个横向剖面,研究了圣佩德罗海岸港口周边的动态。这表明,评级部分的演变是可变的,主要与港口设施和水动力条件的变化有关。形态变化是动态演化的一种表现,其特征是5月和8月之间交替的侵蚀期和11月和2月之间的肥厚期。此外,粒度分析表明,在1985-1986年期间,Tombolo海滩的航海俱乐部平均颗粒的空间变化是不同海滩区域动态变化的必然结果。圣佩德罗港周边的动态:圣佩德罗海岸,Cote d' ivoire西南海岸圣佩德罗港周边的动态是通过使用11个横向剖面来研究的,这些剖面建立在西部Tombolo海滩和东部Nautical Club海滩之间的5个地点的海滩后面。观察到沿海部分的变化演变,主要与港口结构和水动力条件的变化有关。自在形态外汇The expression of The dynamic进化obey to a季节性节律which is an alternation characterized by to August of侵蚀periods from 5 accretion between 11月和2月。此外,颗粒大小分析显示,1985年至1986年期间,从Nautical Club到Tombolo beach平均大小的空间变化,证明了不同海滩部分的变化动力学。关键词:港口结构;形态学和沉积动力学;侵蚀;Accretion;象牙;30a。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamique d'un périmètre littoral portuaire : la côte de San-Pédro, Sud-Ouest de la Côte d’Ivoire
La dynamique du perimetre littoral portuaire de San-Pedro a ete etudiee a partir de 11 profils transversaux implantes en arriere plage au droit de 5 sites, entre la plage Tombolo a l’Ouest et la plage du Club Nautique a l’Est. Il en ressort une evolution variable des segments de cote, en relation surtout avec les installations portuaires et la variation des conditions hydrodynamiques. Les changements morphologiques etant l’expression de l’evolution dynamique obeissent a un rythme saisonnier qui se caracterise par une alternance de periodes d’erosion entre les mois de mai et aout et d’engraissement entre novembre et fevrier. Par ailleurs, les analyses granulometriques montrent une variation spatiale du grain moyen, du Club Nautique a la plage Tombolo au cours de la periode 1985-1986 corollaire de la dynamique variable des differents secteurs de plage. Translated version: Dynamics of a harbour littoral perimeter: the San-Pedro coast, South-west of Cote d'Ivoire The dynamics of San-Pedro harbour’s perimeter was studied using 11 transverse profiles established behind the beach on 5 sites located between the Tombolo beach in the West and the Nautical Club beach in the East. Variable evolution of the coastal portion is observed, mainly related to the harbour structures and the variation of the hydrodynamic conditions. The morphological changes being the expression of the dynamic evolution obey to a seasonal rhythm which is characterized by an alternation of erosion periods from Mai to August and accretion between November and February. In addition, grain size analyses show a space variation of the average size, from Nautical Club to the Tombolo beach during the period spreading from 1985 to 1986, attesting the variable dynamics of the different beach portions. Keywords: Harbour structures; Morphology and sedimentary dynamics; Erosion; Accretion; Cote d’Ivoire; San-Pedro.
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