When that descending motion reaches the surface, it diverges.

当这种下降运动到达地表时，它就会发散。

With an El Nino the warmest water in the Pacific shifts to the east, and this produces ascending motion over that warm water in the Central Pacific, but then descending motion over the maritime continent.

在厄尔尼诺现象下，太平洋最温暖的海水向东移动，这在中太平洋温暖的海水上产生了上升运动，但随后在海洋大陆上空下降运动。