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squall line 【氣象學】颮線。

squally

The squall line complex continued to move southeast . at about 12 : 30utc 8 : 30 p . m . local time , an area of intense rain , over 100 mm h , moved to just south of ting kau tk , see figure 9 for location to cross the approach path of runway 25r northern runway at a time a plane was making an instrumented approach to runway 25r see figure 10 颮線群繼續向東南方移動,在大約協調世界時12時30分本港時間下午8時30分,一個降雨率超過每小時100毫米的大雨區剛好移到汀九tk ,位置見圖9南面,橫過25r跑道北跑道的降落航道,而這時正有一架航機以儀表導航方式準備降落25r跑道圖10 。

The mcc is composite of meso - , meso - and meso - scale convective systems which have different structure and motion features . although circularly approximately on the satellite imagery , the mcc shows linear distributions of radar echo , torrential rain , thunderstorm , cumulonimbus and mesoscale physical parameters as a squall line 它是中、和尺度對流系統組成的復合體,它在云圖上近似圓形,其雷達回波、暴雨、雷暴、對流云、中尺度物理量場等卻呈類似颮線的帶狀分布。

On 23 june 2001 , due to subsidence ( descending motion of the air over a rather broad area ) ahead of typhoon chebi , heat showers formed over inland guangdong and moved south to affect hong kong in the evening . these heat showers later developed into a northwest - southeast oriented squall line 二零零一年六月二十三日,臺風飛燕前端出現下沉現象(較大范圍的空氣下降現象) ,導致廣東內陸地區產生熱驟雨,并在晚上南移影響香港。這些熱驟雨后來更發展成颮線,從西北延向東南。

The mesoscale structure , such as bow echo , strong rear inflow and weak echo region on the inflow entrance etc , with the squall line , caused the disasterous wind 對新一代天氣雷達資料分析揭示了此次颮線的典型的弓狀特征、強的后側入流槽口以及入流槽口上的弱回波區等中小尺度結構特征是造成災害性大風的成因。

Based on the routine data and the observations of cinrad / sa radar and automatic weather stations , a squall line affecting fujian on may 22 , 2005 is analyzed 摘要通過常規資料、新一代天氣雷達、自動站等資料對2005年3月22日影響福建的一次颮線系統進行分析。

The squall line is a kind of instable and strong convective weather caused by the air with upper - layer dry and lower - layer wet in front of the upper - troposphere trough 分析指出,該颮線系統是由高空槽前型的上干下濕引起的不穩定強對流天氣。

10 radar picture at 12 : 30 utc 8 : 30 p . m . local time on 23 jun 2001 . at the point where the two squall lines met each other , the rain was most intense 圖10二零零一年六月二十三日協調世界時12時30分本港時間下午8時30分的雷達影像

Meanwhile , with moist southwesterlies feeding into isolated convective storm over pearl estuary , another squall line developed explosively 與此同時,潮濕的西南氣流進入珠江口上空另一個對流暴雨區,急劇引發另一道颮線。

This latter squall line moved southeast to lau fau shan and merged ( to form an “ l “ shape , see figure 9 ) with the main squall line 這道颮線向東南移向流浮山,并與主颮線?合(成為“ l ”形,見圖9 ) 。

The transit of the plane through the northwest - southeast squall line was uneventful , and the head wind changes were not particularly high 飛機順利飛過從西北走向東南的颮線,逆風的轉變也不算劇烈。

This latter squall line moved southeast to lau fau shan and merged to form an “ l “ shape , see figure 9 with the main squall line 這道颮線向東南移向流浮山,并與主颮線合成為“ l ”形,見圖9 。

The situation is similar to that when a squall line moves across and brings short - lived severe and damaging squalls 這種情況,效果跟颮線橫過時所帶來短暫的猛烈狂風相似,同樣具有相當的破壞力。

Wind shear associated with squall lines is also a potential hazard to aircraft during landing and take - off 另一方面雷暴狂風引致的風切變,亦對飛機升降的安全構成威脅。

The radar images ( figs . 2 & 3 ) show the approach of an intense squall line associated with this trough 雷達圖像顯示與該低壓槽相關連的強烈颮線逐漸移近本港(圖2 ) 。

A squall line swept across hong kong on the night of 9 june , bringing heavy rain and severe squalls 一條颮線于六月九日晚上橫過香港,為本港帶來大雨及猛烈狂風。

Squall lines and “ shi hu feng “ - what you want to know about the violent squalls hitting hong kong on 9 may 2005 颮線與石湖風- 2005年5月9日狂風大揭秘

Marshallese word for “ squall line 馬紹爾語,颮線的意思。