期刊
SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES
卷 52, 期 2, 页码 379-386出版社
SCIENCE PRESS
DOI: 10.1007/s11431-008-0191-9
关键词
hydrological process; ergodic; autocorrelogram; fuzzy-rough c-means clustering; fuzzy least absolute regression
资金
- National Science and Technology Supporting Project [2006BAB04A08]
In this paper, a new ergodic property analysis model of hydrological process is proposed based on fuzzy-rough c-means clustering (FRCM), autocorrelogram, and fuzzy least absolute regression (FLAR). A precipitation time series (1951-2004) from Shanghai Hydrology Station is then analyzed with the model. The results show that the precipitation time series of April, May, June, and September has ergodic property. We conclude that in the long run, the precipitation of April, May, June, and September will not keep decreasing; it will converge to its mean value in some period.
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