Embryo dune development on a large, actively accreting macrotidal beach:: Calais, North Sea coast of France

被引：28
|
作者：
Anthony, Edward J. [1 ]
Vanhee, Stephane [1 ]
Ruz, Marie-Helene [1 ]
机构：
[1] Univ Littoral Cote dOpale, Coastal Geomorphol & Shoreline Management Unit, EA 3599, F-59140 Dunkerque, France
来源：
EARTH SURFACE PROCESSES AND LANDFORMS | 2007年 / 32卷 / 04期
关键词：
beach accretion; aeolian sand transport; embryo dunes; longshore winds; North Sea coast;
D O I：
10.1002/esp.1442
中图分类号：
P9 [自然地理学];
学科分类号：
0705 ; 070501 ;
摘要：
Sediment budget data from an 18-month topographic survey were analysed with data from experiments on wind parameters, beach moisture contents, bedforms and sand mobilization in order to monitor conditions and patterns of embryo dune development over a flat 150-1000 m wide accreting upper beach. The surface conditions over the upper beach locally affect aeolian transport, but net dune development over time depends on sustained strong winds and their orientation. Incoming marine sand supplied by storms and onshore winds is reorganized by the dominant offshore to longshore winds into elongated embryo dunes over this upper beach, imprinting a regional morphology of long-term longshore dune ridge development. Copyright (c) 2006 John Wiley & Sons, Ltd.
引用
收藏
页码：631 / 636
页数：6
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