热时标
Because the thermal and ionization time scale are very short at the ionospheric height, the local nighttime lower ionosphere should be substantially affected by the large QE field.
在电离层高度上,由于电子的热化时标和电离时标极短,在QE场的作用下,夜间局部低电离层会有比较大的响应。
The vertical velocity in the thermal plume exceeds 1 m/ s. The time scales of the convective plumes are about 1.4 hours and they appear as organized mesoscale and small scale turbulent motions.
这种对流泡中心的垂直速度可超过1m/s,并存在尺度为1个多小时的周期性,表现为中小尺度的有组织的湍流活动。
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