squall line

squall line的基本解释

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飑线

squall line所属的单词分类

Weather / 天气 [276]

wind shear  ·  weather satellite  ·  tropical storm  ·  tropical disturbance  ·  tropical depression  ·  supercell  ·  snow level  ·  snow flurry  ·  rain shadow  ·  prevailing wind

与squall line相关的网络例句 [注：此内容来源于网络，仅供参考]

The result showed that the strong storm followed by mesoscale squall line was primary cause of strong sandstorm producing, steps and ladders short wave trough of 500 hPa was great criterion triggering system for the mesoscale squall line producing, the essential dynamic condition was provided by distortion field and the mesoscale low pressure of 700 hPa for the strong sandstorm forming and maintaining in mid-west of Hexi Corridor, the deep vertical circulation development condition was basic power that urged squall line to occur and sand dust to curl up, which was provided for the deep convection development by superimposition of lifting movement before ground cold front and ascendant current of secondary circulation in upper air jet entrance region, temperature and the barometric gradient around the cold front was enlarged by enhancement of ground thermal low and temperature diurnalvariation of afternoon, by which essential thermal energy unstable condition was provided for the gale and strong sandstorm eruption, the strong sandstorm appeared in downstream of -200 m^2s^(-2) center of vertical helicity, the vertical helicity had good instruction significance for development of squall line and landing region of sandstorm, the mesoscale squall line occurred in unstable stratification, basic condition of potential energy transforming as kinetic energy was provided by strong unstable stratification for the strong sandstorm forming and developing.

结果表明：中尺度飑线所伴随的强风暴是产生强沙尘暴的主要原因；500 hPa阶梯短波槽是中尺度飑线产生的大尺度触发系统，河西走廊中西部700 hp变形场、中尺度低压为强沙尘暴形成和维持提供了必要的动力条件；地面冷锋前上升运动与高空急流入口区次级环流的上升气流的叠加，为深对流发展提供了深厚的垂直环流发展条件，是促使飑线发生和沙尘卷起的基本动力；地面热低压的加强和午后气温的日变化加大了冷锋前后的温度和气压梯度，为大风、强沙尘暴爆发提供了必要的热力不稳定条件；强沙尘暴出现在垂直螺旋度为－200平方公尺/s^2中心的下游，垂直螺旋度对飑线的发展和沙尘暴的落区具有较好的指示意义；中尺度飑线发生在不稳定层结内，较强的不稳定层结为强沙尘暴形成、发展提供了位能转化为动能的基本条件。

The strong sandstorm was caused by squall line activity of eastern Hexi Corridor in Apr. to Jun. that was cold front, majority is in May, four times strong sandstorm is accompanied by the squall line in seven times. It was explained that the squall line was suggested easily when the strong cold front moved east to Hexi Corridor where special canyon tube terrain was in, the strong sandstorm which was created by squall line activity have very strong paroxysm that often created serious disaster.

河西走廊东部的飑线活动造成的强沙尘暴出现在4~6月，均为冷锋型，其中5月居多，出现的7次强沙尘暴中有4次伴有飑线，说明5月份强冷锋东移经河西走廊特殊峡管地形时易诱发飑线，飑线活动造成的强沙尘暴爆发性强，往往造成严重灾情。

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与squall line相关的网络解释 [注：此内容来源于网络，仅供参考]

squall line：飑线

注二:风切(wind shear)是一种风向或风速突然改变的大气现象. 注三:下冲风(downburst)是一种急骤下冲的气流,常引起飞机失事之小尺度大气现象. 注四:飑线(squall line)大都指发生在冷锋前缘之连续性雷雨(胞)不稳定带(线).

squall line：暴风雨线

这种被称为暴风雨线(Squall Line)的云象意味着狂风暴雨以及冰雹的可能. B:中云(Middle level clouds)图中所示为半透明的高层云(Altostratus translucidus)的云体均匀成层,呈灰白色或灰色,云底常有条纹结构. 高层云的水平范围很广,

squall line：阵风线

squall front 飙线 | squall line 阵风线 | squamose structure 鳞片状结构

squall line：順間颶風

222.Squall Line順間颶風..........60$x1 | 228.Thelonite Hermit 瑟隆門隱者 ..........90$x1 | 223.Stonewood Invocation堅木祝願+5/+5(Split second)....100X2

prefrontal squall line：锋前飑线

predrilling 打井口眼 | prefrontal squall line 锋前飑线 | prehnite 葡萄石