The relationship between ENSO cycle and temperature,precipitation and runoff in the Qilian mountain area  

作　　者：LAN Yongchao,DING Yongjian,KANG Ersi,ZHANG Jishi(Cold and Arid Regions Environmental and Engineering Research Institute, CAS, Lanzhou 730000, China) 

出　　处：《Journal of Geographical Sciences》2003年第3期293-298,共6页地理学报（英文版）

基　　金：Knowledge Innovation Project of Cold and Arid Regions Environmental and Engineering Research Institute of CAS;No.210100; Knowledge Innovation Project of CAS;No.KZCX1-10-06;03; KZCX2-301

摘　　要：El Nino and La Nina are the events concerned internationally. The corresponding relationship between El Nino events, temperature, precipitation and runoff in the Qilian mountain area are analyzed according to the date from the weather and the hydrometric stations in the area, the results show that effects of El Nino events to temperature, precipitation and runoff are different in the different time and zones. When El Nino occurs, temperature rises, but precipitation and runoff decrease in the whole Qilian mountain area, especially in the east and middle parts of the area. Temperature rises, precipitation and runoff still decrease in the eastern Qilian mountain area in the next year El Nino occurring, but decrease extent is fewer. There are not obvious relationship between temperature, precipitation and runoff with El Nino events in the western Qilian mountain area.El Nino and La Nina are the events concerned internationally. The corresponding relationship between El Nino events, temperature, precipitation and runoff in the Qilian mountain area are analyzed according to the date from the weather and the hydrometric stations in the area, the results show that effects of El Nino events to temperature, precipitation and runoff are different in the different time and zones. When El Nino occurs, temperature rises, but precipitation and runoff decrease in the whole Qilian mountain area, especially in the east and middle parts of the area. Temperature rises, precipitation and runoff still decrease in the eastern Qilian mountain area in the next year El Nino occurring, but decrease extent is fewer. There are not obvious relationship between temperature, precipitation and runoff with El Nino events in the western Qilian mountain area.

关 键 词：ENSO cycle El Nino events RUNOFF Qilian mountain area 

分 类 号：P732[天文地球—海洋科学]