The Biennial Oscillation and El Nino/Southern Osillation (ENSO) Dynamics

最近的观察指出， 厄尔尼诺南方涛动（ENSO）， 与平均季节周期密切相关。 的主要目标 这个程序是设计和测试一个简单的层次耦合 海气模式，以解决假设， 为了更好地预测， ENSO现象。 该计划是开发一个模型层次 这将以一个中间的ENSO耦合的大气-海洋结束 模型将具有与季节相关的年际变化 观察到的变异性。 这些模型将根据 可用的观察。 将研究两个过程， 确定模型的有效性：蒸发对 SST以及对流和风的季风循环对 年际变率

Recent observations pointed out that there is a strong biennial component in the El Nino Southern Oscillation (ENSO) which is closely related to the mean seasonal cycle. The major objective of this program is to design and test a hierarchy of simple coupled air-sea models to address the presumption that the biennial oscillation needs to be accounted for, in order to better predict the ENSO phenomena. The plan is to develop a hierarchy of models that will end with an intermediate ENSO coupled atmosphere-ocean model which will have interannual variability related to seasonal variability as observed. The models will be validated against available observations. Two processes will be examined to determine the validity of the models: the effect of evaporation on SST and the influence of monsoonal cycle of convection and winds on interannual variability.