Outflow, in meteorology, is air that flows outwards from a storm system. It is associated with ridging, or anticyclonic flow. In the low levels of the troposphere, outflow radiates from thunderstorms in the form of a wedge of rain-cooled air, which is visible as a thin rope-like cloud on weather satellite imagery or a fine line on weather radar imagery. For observers on the ground, a thunderstorm outflow boundary often approaches in otherwise clear skies as a low, thick cloud that brings with it a gust front.
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| - Outflow (it)
- Outflow (meteorology) (en)
- 外流 (气象学) (zh)
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| - 在氣象學中，外流是從風暴系統向外流動的空氣。他與皺紋或反氣旋流有關。在對流層的低層中，流出的雷暴以雨冷空氣的形式從雷暴中輻射出來，在天氣衛星圖像上可以看到細繩狀雲，或者在天氣雷達圖像上看到細線。低水平的流出邊界可能破壞小型熱帶氣旋的中心。然而，高空外流對於加強熱帶氣旋至關重要。如果這種流出被削弱，熱帶氣旋就會減弱。如果兩個熱帶氣旋接近，從系統向西流出的上層可以限制系統向東的發展。 (zh)
- Outflow, in meteorology, is air that flows outwards from a storm system. It is associated with ridging, or anticyclonic flow. In the low levels of the troposphere, outflow radiates from thunderstorms in the form of a wedge of rain-cooled air, which is visible as a thin rope-like cloud on weather satellite imagery or a fine line on weather radar imagery. For observers on the ground, a thunderstorm outflow boundary often approaches in otherwise clear skies as a low, thick cloud that brings with it a gust front. (en)
- Un outflow, in meteorologia, è l'aria che si propaga verso l'esterno di un complesso temporalesco. Il termine inglese è composto dalla parola "out", fuori, e dalla parola "flow", flusso. Durante i temporali più intensi la pioggia o la grandine raffreddano l'aria circostante che viene spinta violentemente verso il basso e, a contatto con il terreno, tende a scorrere più velocemente della nube temporalesca per decine e decine di chilometri. L'avanzamento del fronte derivato dall'outflow è capace di generare altri temporali se la massa d'aria che incontra è sufficientemente calda e umida. (it)
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| - Outflow, in meteorology, is air that flows outwards from a storm system. It is associated with ridging, or anticyclonic flow. In the low levels of the troposphere, outflow radiates from thunderstorms in the form of a wedge of rain-cooled air, which is visible as a thin rope-like cloud on weather satellite imagery or a fine line on weather radar imagery. For observers on the ground, a thunderstorm outflow boundary often approaches in otherwise clear skies as a low, thick cloud that brings with it a gust front. Low-level outflow boundaries can disrupt the center of small tropical cyclones. However, outflow aloft is essential for the strengthening of a tropical cyclone. If this outflow is restricted or undercut, the tropical cyclone weakens. If two tropical cyclones are in close proximity, the upper-level outflow from the upwind system can limit the development of the other system. (en)
- Un outflow, in meteorologia, è l'aria che si propaga verso l'esterno di un complesso temporalesco. Il termine inglese è composto dalla parola "out", fuori, e dalla parola "flow", flusso. Durante i temporali più intensi la pioggia o la grandine raffreddano l'aria circostante che viene spinta violentemente verso il basso e, a contatto con il terreno, tende a scorrere più velocemente della nube temporalesca per decine e decine di chilometri. Questa massa d'aria più fresca e asciutta forma una specie di fronte freddo in superficie a forma di arco che si può notare facilmente sulle immagini dei radar Doppler. L'avanzamento del fronte derivato dall'outflow è capace di generare altri temporali se la massa d'aria che incontra è sufficientemente calda e umida. (it)
- 在氣象學中，外流是從風暴系統向外流動的空氣。他與皺紋或反氣旋流有關。在對流層的低層中，流出的雷暴以雨冷空氣的形式從雷暴中輻射出來，在天氣衛星圖像上可以看到細繩狀雲，或者在天氣雷達圖像上看到細線。低水平的流出邊界可能破壞小型熱帶氣旋的中心。然而，高空外流對於加強熱帶氣旋至關重要。如果這種流出被削弱，熱帶氣旋就會減弱。如果兩個熱帶氣旋接近，從系統向西流出的上層可以限制系統向東的發展。 (zh)
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