摘要:
基于南沙群岛珊瑚环礁发育指数为多指标的观点,将测度出的多项相关因子的遥感复合信息数据,细分作N1,N2,…,N10个地理事件,进行了环礁信息熵分析。表征了烟值大小与干出环礁发育指数密切相关的因子,它们依次为礁顶面积(0.319)、渴湖面积(0.324)、环礁开放度(0.336)、走向(0.551)等。就此,对干出环礁发育指数提出一个新的表达式,用以划分南沙环礁发育的开放性类型。
Abstract:
In the viewpoint that the oaral reef atolls' growth index of the Nanshe Islands is influenced by many factors,the measured remote sensing composite information including scmae mutually related factoes is divided inw 10 geographic events as N1,N2,…,N10,and the analysis of the atolls' information entropy is made.From the value of the entropy,the closed related factors with the index of the emerged atolls are shown.In proper order,the factors are reef top's area (0.319),lagoon's area (0.324),open-degree of atoll (0.336),trend of atoll (0.551).On the basis cd this work,a new description function of the emerged atoll growth index is proposed.This function can be used to identify the open type of Nansha atoll growth.
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