x
uploads/cons.jpg

cumulonimbus n.【氣象學】積雨云。

cumulostratus

The scheme has a novel feature that the extraction location of the tracer is not fixed at the center location of the grid , but first optimized at the location where the gradient is maximum in the grid domain , and then by cumulonimbus and uniformity test , the final tracers can be decided 該算法的特色是反演風的位置并不固定在反演網格的中心位置,而是通過梯度分析的方法使反演風的位置得到優化,再經過積雨云檢測和灰度分布均勻程度檢驗,剔除不適合用來反演的目標物。

Temporarily between 0800 utc and 1200 utc surface wind direction 170 degree south - southeasterly winds ; wind speed 25 knots gusting to 40 knots ; visibility 1000 m in thunderstorm with moderate rain ; scattered cloud at 1000 feet including cumulonimbus cloud and broken cloud at 2000 feet 在0800 utc至1200 utc之間,地面風向間中為170度東南偏南風,風速25海里小時,陣風達40海里小時能見度在雷暴及和緩雨勢中為1000米1000尺有零散云層,包括積雨云, 2000尺有疏松云層

Temporarily between 0800 utc and 1200 utc surface wind direction 170 degree ( south - southeasterly winds ) ; wind speed 25 knots gusting to 40 knots ; visibility 1000 m in thunderstorm with moderate rain ; scattered cloud at 1000 feet including cumulonimbus cloud and broken cloud at 2000 feet 在0800utc至1200utc之間,地面風向間中為170度(東南偏南風) ,風速25海里小時,陣風達40海里小時;能見度在雷暴及和緩雨勢中為1000米; 1000尺有零散云層,包括積雨云, 2000尺有疏松云層

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。

When the atmosphere is moist and unstable , the air rises and causes cumulus clouds to further develop . with strong convection , they can develop into cumulonimbus clouds . cumulonimbus is common in summer , sometimes bringing rain and thunder 當水汽充裕大氣不穩定時,空氣上升,便會加速積云本身的發展,再加上強勁的對流,積云會發展成另一云種積雨云,尤其在夏天,會經常發生,有時還帶來雷雨。

On a summer day that sets off with fine weather , insolation may trigger the growth of cumulonimbus clouds and the formation of thunderstorms . such thunderstorms are often localized and short lived 在夏天原本天晴的日子,日間太陽的熱力亦可能會激發積雨云產生,形成雷暴。這些雷暴影響范圍較小及短暫,離雷暴不遠處可能仍是一片晴天。

These arise when the water droplets in the cumulonimbus cloud can no longer be supported by the underlying air and fall down as rain . the downward rushing air produces squalls 當積雨云內的水珠不能被下面的空氣承托時,它們便會降落成雨,而下沉的急速氣流亦會造成狂風。

In the vicinity of active weather systems such as low pressure troughs , cumulonimbus clouds may form one after another . such thunderstorms are more widespread and persistent 在活躍天氣系統如低壓槽等附近,積雨云可以連綿不絕地產生,雷暴影響的范圍較大及持久。

A cumulonimbus cloud typically covers an area of a few kilometres in diameter with a vertical extent of ten kilometres or more , like a tower hanging in the sky 每塊積雨云覆蓋范圍一般直徑只有數公里,高度約十馀公里,遠看就如空中的一座塔。

Fig . 9 cumulonimbus clouds producing heavy showers on the right ( direction of macau ) , contrasting the relatively bright sky on the left ( tai o ) 圖9積雨云為照片右面(澳門方向)地區帶來大驟雨,與左面(大澳)相對明朗的天色形成對比。

Fig . 9 cumulonimbus clouds producing heavy showers on the right direction of macau , contrasting the relatively bright sky on the left tai o 圖9積雨云為照片右面澳門方向地區帶來大驟雨,與左面大澳相對明朗的天色形成對比。

Sometimes , the cumulonimbus clouds will drift with the wind and affect other areas . the areas of formation of the clouds may also vary with time 積雨云有時會隨風飄移影響其他區域,積雨云產生的地區也可能會隨時間而改變。

Becoming between 0600 utc to 0800 utc , scattered cloud at 1500 feet including cumulonimbus cloud and broken cloud at 2000 feet 在0600 utc至0800 utc之間云層逐漸轉變,轉變后1500尺有零散云層,包括積雨云, 2000尺有疏松云層

Becoming between 0600 utc to 0800 utc , scattered cloud at 1500 feet including cumulonimbus cloud and broken cloud at 2000 feet 在0600utc至0800utc之間云層逐漸轉變,轉變后1500尺有零散云層,包括積雨云, 2000尺有疏松云層

The significant weather charts issued by the hong kong observatory this morning also forecasted that area would be affected by cumulonimbus and turbulence 天文臺今早發出的重要天氣圖,也預測該區有雷暴及湍流發生。

Because it is very turbulent inside a cumulonimbus cloud , the water droplets and ice crystals in it will break up and become electrically charged 由于積雨云內有急劇的氣流擾動,云中的水珠和冰粒便會分裂而產生電荷。

On a summer day that sets off with fine weather , insolation may trigger the growth of cumulonimbus clouds and the formation of thunderstorms 在夏天原本天晴的日子,日間太陽的熱力亦可能會激發積雨云產生,形成雷暴。

A cumulonimbus cloud results when it grows to a height of 10 to 20 kilometres . thunderstorms are produced by cumulonimbus clouds 當云頂達到十至二十公里時便形成積雨云,而雷暴是由積雨云產生的。

They are formed in well - developed cumulonimbus clouds associated with thunderstorms , mainly in spring 雹在雷暴中充分發展的積雨云內生成,主要在春天出現。