There are many factors that lead to the uplifting of air , for example , solar heating ; in the vicinity of low pressure troughs ; when two different air streams meet ; or when air is forced uphill 空气上升的原因很多,例如地面受太阳照射加热在低压槽附近两股不同的气流汇聚或遇上高山而上升等。
General situation at 230900 utc : trough 25n 105e 23n 110e 24n 115e 24n 125e s slowly . marine forecast for 24 hours from 231300 utc : hong kong s to sw 4 , ocnl 5 协调世界时23日09时天气概况:低压槽由北纬25度东经105度至北纬23度东经110度至北纬24度东经115度至北纬24度东经125度,预料向南缓慢移动。
There are many factors that lead to the uplifting of air , for example , solar heating ; in the vicinity of low pressure troughs ; when two different air streams meet ; or when air is forced uphill 空气上升的原因很多,例如地面受太阳照射加热、在低压槽附近、两股不同的气流汇聚或遇上高山而上升等。
With an active trough of low pressure lingering over the vicinity of the south china coast for about two thirds of the month , the weather of june was marked by persistent heavy rain and thunderstorms 由于月内约三分二时间受华南沿岸附近一道低压槽影响,六月本港出现持续大雨及狂风雷暴,月雨量达1083
A trough of low pressure will bring rainy weather to the south china coastal areas in the next couple of days . a fresh easterly airstream will affect the coastal areas of guangdong in the latter part of the week 一道低压槽会在未来一两天为华南沿岸地区带来有雨的天气。一股清劲偏东气流会在本周后期影响广东沿岸。
The computer model forecast weather maps are generated by the observatory s computer model directly without manual adjustment . hence , symbols for synoptic features such as cold fronts and trough lines are omitted 这些电脑模式预测天气图是由天文台的电脑直接编制而成,不经人手修订。因此预测图内并没有标示冷锋和低压槽等天气系统。
The computer model forecast weather maps are generated by the observatory s computer model directly without manual adjustment . hence , symbols for synoptic features such as cold fronts and trough lines are omitted 这些电脑模式预测天气图是由天文台的电脑直接编制而成,不经人手修订。因此预测图内并没有标示冷锋和低压槽等天气系统。
The extra rainfall was mainly due to an active trough of low pressure over the south china coast in may , the combined effect of an active southwesterly and severe tropical storm bilis in july and a tropical depression in september 本年雨量较多主要是五月时受到华南沿岸的一道活跃低压槽影响,七月时受到一股活跃西南季候风与强烈热带风暴碧利斯的共同影响及九月时受到一个热带低气压影响所致。
3 by delineating the various features of the weather maps and putting them into layers i . e . , pressure cells , troughs , ridges etc , users can overcome visual information overloads by selecting appropriate layers of interest and animating them over time 将描述天气地图的不同特征如气压单元,低压槽和高压脊并将其放入不同的层中,用户可以选择感兴趣的图层以避免可视信息过量,并使之以动画形式表示。