Results show that during the snowstorm disaster, under the large scale background with "trough in south and ridge in north", strong cold air caused by prevailing northerly wind in northern Asia wedged into low level atmosphere over Southeast China and formed a "clod cushion". At the same time, warm-wet air was also transported to Southeast China by southerly wind. The vertical shear of winds from cold to warm airflows produced strong upward motion and then, the warm-wet air over the cold air wedge was driven to rise. Finally, the structure of "warm cover" and "cold cushion", as well as corresponding vertical circulation over the converging frontal zone came into being.

研究結(jié)果表明超碰在线免费网址，災(zāi)害發(fā)生期間2020国产91精品对白露脸，中國北方中低層大氣盛行偏北氣流欧美大黑粗极品黑白配，使較強(qiáng)的偏北冷空氣"楔入"中國東南部低層大氣，構(gòu)成低層"冷墊"我操人人人人操我，同時(shí)偏南暖濕氣流源源不斷地將大量水汽輸送到中國東南部亚洲国产AⅤ美女黄软件网站，冷暖氣流交匯及其垂直切變導(dǎo)致強(qiáng)烈的上升運(yùn)動(dòng)，構(gòu)成了"冷墊"上空的"暖蓋"及"南槽北脊"反位相環(huán)流匯合鋒區(qū)的垂直環(huán)流結(jié)構(gòu)国产中文。

Outside air reachs nip off energy-saving open wide first introduction, also can the cold air with indoor nip off is poured out of outside reach the hot air outdoor to enter.

掐斷外面空氣air及節(jié)省能源敞開始進(jìn)門国产一级黄色视频一区二区三区在线观看，同樣可掐斷室內(nèi)的冷空氣air往流岀岀及室外的熱空氣air步入。

The results show that the formation mechanisms of the event are as follows.(1) The strong warm advection of 500hPa over the west Europe led to a blocking high created in Siberia area, and a zonal though, the north-east stream in the north edge of the though led to super polar cold air and the cold air from west together and got to strengthen, and then the abnormally strong cold high, front zone, cold temperature center and cold temperature advection appear.

結(jié)果表明：這次寒潮及寒潮天氣主要成因是(1)西歐上空500hPa強(qiáng)暖平流致使在西伯利亞地區(qū)形成阻塞高壓人人伦av社区，建立橫槽久久99精品久久久久久久清纯，橫槽北側(cè)的東北氣流引導(dǎo)超極地冷空氣和西路冷空氣合并加強(qiáng)；形成了異常強(qiáng)的冷高壓男人插女人的底下的黄色的视频、鋒區(qū)免费A毛视频、冷溫度中心和冷溫度平流。

cold air blower：冷風(fēng)機(jī)

cold aggregate elevator 冷集料升降機(jī) | cold air blower 冷風(fēng)機(jī) | cold air machine 空氣制冷機(jī)

cold air pocket：冷氣袋

cold air mass 冷氣團(tuán) | cold air pocket 冷氣袋 | cold air pool 冷池

cold air machine：冷空氣機(jī)

cold-air drop ==> 冷池 | cold-air machine ==> 冷空氣機(jī) | cold-air outbreak ==> 寒潮