非对称成长的三角洲

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Asymmetrical Growing Delta

摘要: 推导了岸线变化的非线性偏微分方程,把解展成某一小参数的渐近级数.然后使用Fourier变换求得Green函数,解就用Green函数来表示.所得的结果表明由于来自河流和沿岸流的输沙,三角洲的成长是非对称的,并对长江三角洲的非对称成长试作解释.

Abstract: In this paper, a nonlinear partial differential equation governing a change of shoreline is derived, its solution is expanded as an asymptotic series in a small parameter. Then the Green function is obtained by means of Fourier transform and the solution is expressed using the Green function. The results obtained show that Delta growth is asymmetrical due to sand input from river and longshore current, It tries to explain asymmetrical growth of the Delta of the Changjiang River.

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