Dimensional upgrade approach for spatial-temporal fusion of trend series in subsidence evaluation

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題名:	Dimensional upgrade approach for spatial-temporal fusion of trend series in subsidence evaluation
作者:	王士榮;Wang, Shih-Jung
貢獻者:	地球科學學院應用地質研究所
關鍵詞:	Constants;distance weighting;Entropy;fusion technique;Groundwater;land subsidence;Mathematical models;slope criterion;Slopes;Subsidence;Temporal logic;time series;Trends
日期:	2015-01-01
上傳時間:	2026-04-23 14:55:20 (UTC+8)
出版者:	MDPI Multidisciplinary Digital Publishing Institute;Basel: MDPI AG
摘要:	摘要： Physical models and grey system models (GSMs) are commonly used to evaluate and predict physical behavior. A physical model avoids the incorrect trend series of a GSM, whereas a GSM avoids the assumptions and uncertainty of a physical model. A technique that combines the results of physical models and GSMs would make prediction more reasonable and reliable. This study proposes a fusion method for combining two trend series, calculated using two one-dimensional models, respectively, that uses a slope criterion and a distance weighting factor in the temporal and spatial domains. The independent one-dimensional evaluations are upgraded to a spatially and temporally connected two-dimensional distribution. The proposed technique was applied to a subsidence problem in Jhuoshuei River Alluvial Fan, Taiwan. The fusion results show dramatic decreases of subsidence quantity and rate compared to those estimated by the GSM. The subsidence behavior estimated using the proposed method is physically reasonable due to a convergent trend of subsidence under the assumption of constant discharge of groundwater. The technique proposed in this study can be used in fields that require a combination of two trend series from physical and nonphysical models. 出版者： Basel: MDPI AG 出版日期： 2015-05-01 出處： Entropy (Basel, Switzerland), 2015-05, Vol.17 (5), p.3035-3052 資源來源： Directory of Open Access Journals 版權： Copyright MDPI AG 2015 識別號： ISSN: 1099-4300 識別號： EISSN: 1099-4300 識別號： DOI: 10.3390/e17053035
顯示於類別:	[應用地質研究所] 期刊論文

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