%0 Journal Article
%T Impact of the 11-yr Solar Activity on the QBO in the Climate System<br>太阳活动11年周期对气候系统中准两年振荡的影响(英)
%A Hengyi WENG
%A <br>Hengyi
%A WENG
%J 大气科学进展
%D 2003
%I 
%X The QBO (quasi-biennial oscillation) in the climate system, with a mean cycle-length slightly above or below 2 years, is studied in a simple forced dynamical system. The fundamental cause of the quasi-biennial periodicity of the QBO is nonlinear resonance of the system to the seasonal forcing that is modulated by the 11-yr solar cycle. For a given nonlinearity, the cycle-length and the amplitude of the QBO depend on the intensity of both the unmodulated seasonal cycle and the 11-yr solar cycle, which may be one of the reasons why the QBO properties in climate vary with time and space.
%K QBO
%K seasonal forcing
%K solar modulation
%K nonlinear resonance<br>准两年震荡
%K 季节强迫
%K 太阳调制
%K 非线性响应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=5434AFBF6CB6E7E8D67733B541F211C7&aid=D20C489C2987F34D7D9E93D3AF924927&yid=D43C4A19B2EE3C0A&vid=A04140E723CB732E&iid=0B39A22176CE99FB&sid=358F98408588E522&eid=F637763636425CAF&journal_id=0256-1530&journal_name=大气科学进展&referenced_num=3&reference_num=28