%0 Journal Article
%T Drought and Flood in the Changjiang-Huaihe River Basin Associated with the Multi-Time-Scale Oscillation<br>江淮流域夏季旱涝与不同时间尺度大气扰动的关系
%A Li Guilong
%A Li Chongyin
%A <br>李桂龙
%A 李崇银
%J 大气科学
%D 1999
%I 
%X The drought and flood in the Changjiang-Huaihe River basin are studied from the riewpoint of multi-time-scale anomalous circulation. It is demonstrated that anomalous quasi-stationary wave influence is very important. The low frequency oscillation is also important and the influence of 10-20 days oscillation at 200 hPa and intraseasonal oscillation at 850 hPa is obvious. And the influence of synoptic scale system (3-10 days) is small compared to that of the low frequency oscillation and quasi-stationary wave. It is also found that the strength and position of southwest quasi-stationary flow in east Asia and northwestern Pacific area play an important role in the occurrence of drought and flood in the Changjiang-Huaihe River basin. If the southwest quasi-stationary flow is strong and has tendency to continent, there will be flood in the Changjiang-Huaihe River basin. If the southwest quasi-stationary flow is weak and has tendency to the ocean, there will be drought in the Changjiang-Huaihe River basin.
%K 准定常波
%K 季节内振荡
%K 准双周振荡
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=46874A5A102033D774D00D819E91CD68&aid=785EDDB12ACCC8F441A4AF4085602B79&yid=B914830F5B1D1078&vid=EA389574707BDED3&iid=CA4FD0336C81A37A&sid=7C3A4C1EE6A45749&eid=771152D1ADC1C0EB&journal_id=1006-9895&journal_name=大气科学&referenced_num=11&reference_num=8