DOI: 10.1007/s00382-011-1158-2
Scopus记录号: 2-s2.0-84867102045
论文题名: IOD and ENSO impacts on the extreme stream-flows of Citarum river in Indonesia
作者: Sahu N. ; Behera S.K. ; Yamashiki Y. ; Takara K. ; Yamagata T.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 39, 期: 2017-07-08 起始页码: 1673
结束页码: 1680
语种: 英语
英文关键词: Citarum river
; Climate variability
; ENSO Modoki
; Extreme stream-flow events
; Indian Ocean Dipole
英文摘要: Extreme stream-flow events of Citarum River are derived from the daily stream-flows at the Nanjung gauge station. Those events are identified based on their persistently extreme flows for 6 or more days during boreal fall when the seasonal mean stream-flow starts peaking-up from the lowest seasonal flows of June-August. Most of the extreme events of high-streamflows were related to La Niña conditions of tropical Pacific. A few of them were also associated with the negative phases of IOD and the newly identified El Niño Modoki. Unlike the cases of extreme high streamflows, extreme low streamflow events are seen to be associated with the positive IODs. Nevertheless, it was also found that the low-stream-flow events related to positive IOD events were also associated with El Niño events except for one independent event of 1977. Because the occurrence season coincides the peak season of IOD, not only the picked extreme events are seen to fall under the IOD seasons but also there exists a statistically significant correlation of 0.51 between the seasonal IOD index and the seasonal streamflows. There also exists a significant lag correlation when IOD of June-August season leads the streamflows of September-November. A significant but lower correlation coefficient (0.39) is also found between the seasonal streamflow and El Niño for September-November season only. © 2011 Springer-Verlag. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55163
Appears in Collections: 过去全球变化的重建
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作者单位: Disaster Prevention Research Institute, Innovative Disaster Prevention Technology and Policy Research Laboratory, Kyoto University, Gokasho, Uji City, Kyoto 611-0011, Japan; Research Institute for Global Change, JAMSTEC, 3173-25 Showamachi, Yokohama, Kanagawa 236-0001, Japan; School of Science, University of Tokyo, 3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Application Laboratory, JAMSTEC, Yokohama, Japan
Recommended Citation:
Sahu N.,Behera S.K.,Yamashiki Y.,et al. IOD and ENSO impacts on the extreme stream-flows of Citarum river in Indonesia[J]. Climate Dynamics,2012-01-01,39(2017-07-08)