At the start of the shift, there is a strong clue that crust shift has started, and this is the uptick in wind.

在极移开始时候，会有强烈的暗示------地壳移动已经开始了，风在增强。

youdao

The experiment indicates that wind itself is of weak effect on ground surface erosion, so that the soil crust may not be destroyed even under great wind velocity.

实验表明：净风对土表的风蚀作用微弱，即使在遭到大风吹刮时，土表的结壳仍不易受到破坏。

youdao