当重力波的强度较强时，降雪峰值滞后于波峰的时间差也较长。
When the strength of gravity waves are strong enough, the time difference that the snow peak lags behind the wave crest of gravity waves becomes quite long.
高低空急流的位置及强度可作为降雪量和大-暴雪落区的短期预报指标。
Therefore, the position and intensity of the high and low-level jet can be used for the short-range forecast indicator of the snowfall and falling area.
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