Comparative Analysis for Change-Point Detection of Runoff Series by Different Methods in Poyang Lake Basin

Xiang ZHOU, Li-ying XIAO, Yong-wen PENG, Jing-ming CHEN

Abstract


In this paper the characteristics of the annual runoffs was analyzed focusing on the Poyang lake basin in the period 1956-2012.Three non-parametric statistics (the Moving rank sum test, Pettitt test and Mann-Kendall test) were applied to detect the change-points and monotone trends in the annual runoff series. Results indicated that the change-points are in 1972, 1976, 1977, 1984 and in 1991 separately in the Poyang lake basin during the study periods, and showed non-statistically significant trends.

Keywords


Annual runoff, Trend detection, Change-point detection, Poyang lake basin


DOI
10.12783/dteees/eccsd2016/5842

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