论文部分内容阅读
The interaction between anomalous winter monsoon in East Asia and El Nino is further stud-ied in this paper.The new results still more proved a previous conclusion:there are clear interac-tions between El Nino and winter monsoon in East Asia.The continual westerly burst andstronger cumulus convection over the equatorial central-western Pacific caused by stronger wintermonsoon in East Asia can respectively excite anomalous oceanic Kelvin wave and stronger atmo-spheric intraseasonal oscillation in the tropics,then excite the El Nino event through air-sea inter-action.In El Nino winter,there are warmer and weaker winter monsoons in East Asia.The El Ni-no will still reduce the intensity of intraseasonal oscillation and leads it to be barotropic structure.
The interaction between anomalous winter monsoon in East Asia and El Nino is further stud-ied in this paper. The new results still more proven a previous conclusion: there are clear interac-tions between El Nino and winter monsoon in East Asia. Continual westerly burst andstronger cumulus convection over the equatorial central-western Pacific caused by stronger winter monsoon in East Asia can respectively excite anomalous oceanic Kelvin wave and stronger atmo-spheric intraseasonal oscillation in the tropics, then excite the El Nino event through air-sea inter-action. In El Nino winter, there are warmer and weaker winter monsoons in East Asia. El Ni-no will still reduce the intensity of intraseasonal oscillation and leads it to be barotropic structure.