冬季黑潮海温场对台湾地区流场及降水影响的数值模拟

NUMERICAL SIMULATIONS ON THE EFFECTS OF THE WARM SEA SURFACE TEMPERATURE OF THE KUROSHIO CURRENT ON THE LOCAL CIRCULATION AND PRECIPITATION OVER Taiwan Region

本文用ＰＳＵ／ＮＣＡＲ中尺度模式ＭＭ４对冬季黑潮暖流海温场对台湾地区流场和降水的影响进行了数值模拟分析。结果表明：冬季黑潮暖流海温场明显改变台湾地区的局地流场特征；台湾岛上的降水分布特征取决于台湾岛的地形特征，而黑潮暖流海温场的分布对台湾岛上降水量的大小有着决定性的影响。

In this paper,PSU/NCAR mesoscale model MM4 is used to investigate the effects of the warm Kuroshio Current on the wind field and precipitation over Taiwan areɑ. The numerical results indicate that the characteristics of local circulation over Taiwan Islands can be obviously varied because of the existence of the warm sea surface temperature(SST) of the Kuroshio Current; the distribution of precipitation is determined by the local topography and the precipitation intensity can be greatly affected by SST gradient of the Kuroshio Current.