湖泊水质参数空间分析中异常值的识别与处理

Outlier Identification and Processing in Spatial Analysis of Water Quality Parameters of a Lake

异常值的存在对湖泊水质参数局部估计精度产生重要影响 ,制约了地统计学在湖泊水质研究中的应用。文章以太湖为例 ,介绍了在湖泊水质参数研究中的三种异常值识别和处理的方法。

The existence of outliers affects local estimation accuracy of parameters, limiting the application of geo-statistics in this field. In this paper, three methods are expounded to identify and process the outliers in a water quality investigation in Taihu Lake. It has been showed that the methods are effective in reduction of outliers influence.