| 湖泊水质参数空间最优估计精度分析 |
| 摘要点击 2011 全文点击 1656 投稿时间：2000-12-28 |
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| 中文关键词 水质参数 湖泊 空间估计精度 克立格方差 |
| 英文关键词 water quality parameter lake accuracy of spatial estimation Kriging variance |
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| 中文摘要 |
| 在湖泊研究中,往往要了解污染的空间分布状况,其核心是空间最优估计问题.本文在阐述了克立格方差特点的基础上,以太湖为例,对湖泊水质参数空间最优估计的精度问题进行了分析.结果显示,估计精度受变差函数、各采样点的空间配置关系等因素的影响.空间结构直接决定着估计精度的大小,而与各信息采样点的值的大小无关. |
| 英文摘要 |
| The spatial distribution of pollutants in lakes is required in the study of lakes. The key issue is the spatial optimal estimation. This paper elaborated the characteristics of Kriging variance and analyzed systematically the accuracy of Kriging estimation on water quality parameters of lakes in the light of a practical example of Taihu Lake. The accuracy of estimation was determined by many factors such as variogram, distribution of sampling sites and so on, and was not related to the values of sampling data. |
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