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geomorphic parameter
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  相似匹配句对
     Scattering Parameter
     散射参数
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     n—Parameter CAPM
     n个参数的资本性资产定价模型
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     THE DIVISION OF REGIOUS OF AGRICULTURE GEOMORPHIC
     湖南农业地貌区划
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An extraction of model parameters is the key for remote sensing application in the calculation and forecast of flood, which mainly depends on relationships between characteristic informations of a basin obtained by remote sensing data and characteristics of model parameters. There are close relations between the flood stochastic model-rgeomorphoclimatic instantaneous unit hydrograph (Rodriguez-Iturbe, et al., 1979.) and the characteristics of a basin. The model is deduced through Marcov process of...

An extraction of model parameters is the key for remote sensing application in the calculation and forecast of flood, which mainly depends on relationships between characteristic informations of a basin obtained by remote sensing data and characteristics of model parameters. There are close relations between the flood stochastic model-rgeomorphoclimatic instantaneous unit hydrograph (Rodriguez-Iturbe, et al., 1979.) and the characteristics of a basin. The model is deduced through Marcov process of raindrops uniformly distributed over the river ordering system of a basin, which is advanced by R. E. Horton and is defined by A. N. Strahler. At this basis, we take Jieting basin of Puyong river in Zhejiang Province for the experimental area of the model. According to the map of river ordering system of a basin, which is interpresed from LANDSAT MSS image we extracted the geomorphic parameters of the model and calculated the processes of five floods in the basin. And the results indicated that the calculative precisions of the model can meet the requiements of flood calculation.

遥感在洪水计算和预报中的应用,其关键是模型参数的提取。这主要取决于用遥感资料获取的流域特征信息与模型参数属性之间的相关程度。洪水随机模型——地貌气候单位线与流域特征有密切的关系,它可表示为流域地貌参数和气候参数的函数。我们以浙江省浦阳江水系街亭流域作为模型试验区,根据Landsat MSS图像所绘制的街亭流域的河流分级系统图,提取了该流域的地貌参数。任意选取的该流域五次洪水过程的计算结果表明,这一模型的计算精度能够满足洪水计算的要求。

Fractals,FractaI Dimensions,Geometric fractals,Temperal fractals,Chaos,Geomorphology,Geomorphic process,Fractal geomorphology Abstract Fractal theory is a new techniques occurred with development of modern mathematics.Fractal geomorphological research is a new direction in geomorphology with the applicationof fractaI theoty. Fractal geomorpholoh can be considered to bi a new discipline to deal withthe principle of orgins , development and distribution of relieves of the earth surface with spe-cial reference...

Fractals,FractaI Dimensions,Geometric fractals,Temperal fractals,Chaos,Geomorphology,Geomorphic process,Fractal geomorphology Abstract Fractal theory is a new techniques occurred with development of modern mathematics.Fractal geomorphological research is a new direction in geomorphology with the applicationof fractaI theoty. Fractal geomorpholoh can be considered to bi a new discipline to deal withthe principle of orgins , development and distribution of relieves of the earth surface with spe-cial reference to fractaI theory. It focuses on the fractal geometric character of the distribu-tion of geomorphological phenomena in space and time(phase space)and the related signifi-canes in geomorphological process. In this paper, with a brief intruduction of the basic con-cepts of fractal, We reviewed the recent accomplishment of the application of fractal theory tomorphological research of drainage basin and various types of geomorphology and to geomor-phological process researches including following aspects:1 )coastal geomorphology,2)fluvialgeomorphology,3) karst geomorphology,4)other types of geomorphology including glaciallandforms,soilcovered land-scape and rock talus,5)mathematical-technique to generate frac-tal landscapes,6)landscape evolution,and 7)fractals in geomorphological process in phase space.Fractal theory prevides a new technique to find and to describe quantitative geometricalcharacters of chaotic,geomorphic phenomena , and variouskindfractal dimensions becometype of geomorphic parameters. Fractal theory may be a possible way for geomorphologist tostudy and to explain the complex and chaotic earth surface processes and landforms. As forthe future research of fractal geomorphology,the following issues still need further study:1) the genetic mechanisms of geomorphic fractal,ie,the relationship between geomorphicfractals and geomorphic conditions,2 )the relationship between geomorphic fractal dimensionsand geomorphic processes(phase),3)relationship between range-scale of geomorphic fractalsand that of geomorphic processes,4)the further study of digital modeling of fractal landscapeand its relation to physical geomorphic processes, 5)fractal characteristics of geomorphic phe-nomena in space and time and the possibility of geomorphic forecasting.

本文简介了分形的有关基本概念,回顾了分形理论在海岸、流水、喀斯特地貌等多种地貌类型和流域地貌发育的形态研究中,以及在地貌过程研究中的应用的新近成果,并提出了今后分形地貌学研究的五个主要方面。

The friction surface is described by geomorphic parameters. On the basis of fractal theory and n-dimension fractal browian movement, this paper proposed to use fractal dimension to describe the geometric characteistics of the friction surface and proved, it is a parameter that describes the state of chaos in the friction surface.

摩擦表面的几何特征采用形貌参数描述.基于分形理论及n维分形布朗运动,提出用分形数来描述摩擦表面的几何特征,并证明其反映了摩擦表面形貌的无序程度.

 
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