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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >High-order structure functions for planet surfaces: a turbulence metaphor
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High-order structure functions for planet surfaces: a turbulence metaphor

机译:行星表面的高级结构功能:湍流隐喻

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摘要

A theoretical framework for interpreting high-order structure functions of scale-invariant planet surfaces in a fashion similar to that for the high-Reynolds number turbulence is proposed. Following this approach, a relationship showing that the structure function scaling depends on the governing physical processes and the generalized fractal dimensions is derived. This relationship may be superimposed with the effects of discrete morphological structures (e.g., impact craters). Such a superposition may in principle significantly modify scaling exponents as sometimes can be seen in turbulence due to the effects of coherent structures. The proposed framework may help in identifying appropriate physical factors controlling surface formation at difference ranges of spatial scales as well as in testing various scaling models of the planet topography.
机译:提出了一种以与高雷诺数湍流相似的方式解释尺度不变的行星表面的高阶结构函数的理论框架。按照这种方法,可以得出一个关系,该关系表明结构函数的缩放取决于控制的物理过程,并且得到了广义的分形维数。这种关系可以与离散形态结构(例如,撞击坑)的影响叠加。这种叠加原则上可以显着地改变缩放指数,如有时由于相干结构的影响而在湍流中看到的那样。所提出的框架可以帮助确定适当的物理因素,以控制在空间尺度的不同范围内的表面形成,以及帮助测试行星地形的各种尺度模型。

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