利用法国动力学气象实验室开发的格点大气环流模式(LMDZ)考察了海陆地形高度对阻塞事件的影响。结果表明,数值模式中地形高度的存在与否可以直接影响到阻塞事件的发生位置,使气候态的阻塞发生区域产生调整。可以看出海陆地形在阻塞形成中起固定阻塞位置的作用,也可以加强阻塞的强度,增加阻塞发生的频率。
With the Atmospheric General Grculation Model(AGCM) LMDZ, the authors investigate the influence of the land-sea topography height on the blocking events. The results show that the topography in the AGCM can modulate the position of blockings and the area of climatological blocking onset. Furthermore, the land-sea topography can increase the blocking intensity and make the blocking onset more frequent.