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題 名 | 多變數地下水水質監測站網規劃與評估=Multiple-Variable Groundwater Quality Monitoring Network Planning and Evaluation |
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作 者 | 林裕彬; | 書刊名 | 臺灣水利 |
卷 期 | 46:3=183 1998.09[民87.09] |
頁 次 | 頁62-75 |
分類號 | 445.212 |
關鍵詞 | 地下水水質; 多變數監測; 站網規劃與評估; 克利金; 因子分析; Groundwater quality; Multiple-variable monitoring; Monitoring network planning and evaluation; Kriging; Factor analysis; |
語 文 | 中文(Chinese) |
中文摘要 | 一般地下水水質監測站系統設計或評估,僅分析一水質項目,所得之監測站網往 往須監測一種以上水質項目。本研究發展一評估多項目監測站網方法,其主要沿續減變異 數分析,應用因子分析與最佳化區域減變異數分析,並以一假設區域與臺北盆地為研究驗 證區域。本方法不但同時考慮多項代表污染物,亦不必預先設定候選監測點及具區域代表性 。研究結果顯示,因子分析所選之代表項目各具代表性。考慮單項與多項水質項目之監測站 系統,其各自選之監測站位置不同,而多變數與單變數考量的效率與區域整體變異程度不同 ,且各自所增加估計精度百分比亦不相同。若僅考慮及分析單一監測項目,可能導致該監測 站網的測站位置不佳或測站數目不足,而無法滿足多監測項目之需求,尤其是測站數目被侷 限時。 |
英文摘要 | Most of methods for designing or evaluating monitoring network system are based on the characteristics of one item, but multiple items will be sampled by this system. This research develops a multiple-item monitoring network evaluation method that is the extension of variance reduction analysis with factor analysis and is applied to a hypothetical case and the case of the Taipei area groundwater quality monitoring network study. This new method not only counts on multiple monitoring items, but also can lead the monitoring network provides the global and sufficient information without any need for spatial discretizations. The results show that the selected variables represent their spatial and chemical characteristics of their factor. The accuracy improvements are also different by considering one item and multiple items. The additional sites selected by consideration of one monitoring item base are different to those selected by consideration of multiple monitoring items base. The efficiency and global variation explanation are also different by considering one item and multiple items. However, the analysis of one item may lead insufficient number of monitoring wells, especially on the limitation of wells number. |
本系統中英文摘要資訊取自各篇刊載內容。