Morphological characteristics and medium-term evolution of the beaches between Ceuta and Cabo Negro (Morocco)

被引:21
作者
Anfuso, G.
del Pozo, J. A. Martinez
Nachite, D.
Benavente, J.
Macias, A.
机构
[1] Univ Cadiz, Fac Ciencias Mar & Ambientales, Dpto Ciencias Tierra, E-11510 Puerto Real, Cadiz, Spain
[2] UFR Sci Mer, Fac Sci, Lab Oceanog Appl, Tetouan 93000, Morocco
[3] Univ Cadiz, Fac Ciencias Mar & Ambientales, Area Anal Geog Reg, E-11510 Puerto Real, Cadiz, Spain
来源
ENVIRONMENTAL GEOLOGY | 2007年 / 52卷 / 05期
关键词
beach volume; port; littoral cell; GIS; Morocco;
D O I
10.1007/s00254-006-0535-3
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This work presents the results of a combined study on the beach morphology and the evolution at short- and medium-term of the littoral between Ceuta and Cabo Negro (Morocco). It is an interesting sector showing a great increase of human occupation and coastal structures. The monitoring program allowed for the reconstruction of the beach morphological behavior and the seasonal changes. The studied beaches presented reflective profiles recording little seasonality, with the most notable morphological changes being strictly related to storms. Surf Similarity and Surf Scaling parameters highlighted the existence of intermediate and reflective beach states, characterized by plunging breakers. Aerial photographs and a satellite image have been geo-referenced and elaborated with GIS tools to reconstruct the short- and medium-term evolution of the littoral and the sediment transport pathways. The littoral showed important erosion at short- and medium-term related to a negative sedimentary budget because of offshore transport. Sand accumulation was recorded close to the main ports, i.e., Marina Smir and Marina Kabila. These port structures constituted impermeable, fixed limits, which divided the studied area into littoral cells. Other free, transit limits were also observed.
引用
收藏
页码:933 / 946
页数:14
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