水文時間序列補遺之研究

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Title:	水文時間序列補遺之研究
Other Titles:	Interpolation of the Missing Data in Hydrologic Time Series
Authors:	虞國興;魏柏村
Contributors:	淡江大學水資源及環境工程學系
Keywords:	水文測量;水文資料;水文時序;時間序列分析;Hydrologic Measurement;Hydrologic Data;Hydrologic Time Series;Time Series Analysis
Date:	1994-07
Issue Date:	2014-02-12 20:36:46 (UTC+8)
Abstract:	本研究利用時間序列方法探討水文時序補遺問題,研究中以定常性合成資料驗證Ljung(1989) ,Pourahmadi(1989),Abraham(1981)所提方法之精確度,同時並探討其於實測資料之適用性。研究結果顯示,上述方法各有優劣,然而對於低階定常性之補遺皆有令人滿意之精確度;其中又以Ljung方法最為穩定。另,研究中亦探討具遺失值時間序列模式研判之正確性,具遺失值時間序列模式之判定以BIG準則較優。 In the present study, the interpolation of missing data in the hydrological time series was investigated. The synthetic data were employed to verify the accuracy of the Ljung (1989), Pourahmadi (1989) and Abraham (1981) methods. The real data were also investigated the aptness of those methods. The results indicated that the accuracy of interpolation was unexpected high, especially for the low order of stationary process. Meanwhile, the results indicated that Ljung method gave the best performance. Besides, the BIC criterion can successfully identify the true model for a given time series with missing data.
Relation:	第七屆水利工程研討會論文集(上)，頁[ D ] 137-148
Appears in Collections:	[Graduate Institute & Department of Water Resources and Environmental Engineering] Proceeding

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