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Beach changes from construction of San Onofre Nuclear Generating Station, 1964-1989

机译:从1964年至1989年圣奥诺夫雷核电站的建设改变了海滩

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摘要

Construction of the San Onofre Nuclear Generating Station (SONGS) on the coast at Camp Pendleton in northern San Diego County, CA, between 1964 and 1984 provides a unique opportunity to document a full cycle of long-term widening of a naturally narrow beach due to structures and sand fill, and the return to a narrow condition following cessation of fill placement and removal of the structures. Beach changes documented from 1964 to 1989 illustrate and confirm that the combination of sand fill and sand retention structures will widen a beach in southern California beyond its natural width essentially indefinitely. Furthermore, if the upcoast beach is sufficiently wide for longshore transport to bypass the structures, this is accomplished with no detrimental down-coast effects on beach width. Survey data suggest that nourishment sand near SONGS remained nearby, moving offshore rather than rapidly and noticeably alongshore as expected.
机译:1964年至1984年之间,在加利福尼亚州圣迭戈县北部的彭德尔顿营地海岸建造了圣奥诺弗雷核电站(SONGS),这是一次独特的机会,可以记录由于结构和沙子填充,并在停止填充和移除结构后返回狭窄状态。 1964年至1989年记录的海滩变化说明并证实,沙粒填充和挡沙结构的结合将使加利福尼亚南部的海滩实质上无限期地超出其自然宽度。此外,如果上海岸的海滩足够宽,可以进行长岸运输以绕过建筑物,则可以在不对海滩宽度造成不利的下海岸影响的情况下实现。调查数据表明,SONGS附近的营养砂仍在附近,向岸外移动,而不是像预期的那样迅速而显着地沿岸移动。

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