| MORPHOLOGY, SEDIMENTARY BEDFORMS AND SAND TRANSPORT ACROSS A RIDGE-AND-RUNNEL BEACH UNDER THE ACTION OF SUMMER WAVES |
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| 作者姓名： | Christopher E.Vincent Robert C.Kay 陈承惠 李立 JackJarvis |
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| 作者单位： | School of Environmental Sciences，University of East Anglia，U.K.，School of Environmental Sciences，University of East Anglia，U.K.，3rd Institute of Oceanography，SOA，Xiamen，China，3rd Institute of Oceanography，SOA，Xiamen，China，Department of Geography，University of St. Andrews，Scotland |
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| 摘 要： | As part of a collaborative study between the 3rd Institute of Oceanography, Xiamen, and the U-K. Universities of East Anglia and St. Andrews, a 4-day experiment was conducted on a ridge- and -runnel beach of north Norfolk on the North Sea coast- Detailed surveys were made of every low water of an area 10m by 30m and electromagnetic current meters were used to measure wave- induced currents over the ridge and in the runnel- The locations of bedform fields were noted, fluorescent sand was used to follow the sand movement and, at the end of the experiment, lacquer peels were taken of the top 0-2 m of a vertical section through the ridge- and- runnel-During the 4 days 0-75 m3 of sand per metre width of beach accreted in the runnel and a similar volume was eroded from the upper foreshore. The dominant shoreward transport, identified qualitatively by the movement of the fluorescent sand, suggests the ridge- and- runnel system migrated shorewards up the general beach slope of 1 by 2 - 3 m. The wave orbital cur
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