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Easterly Wave

Wikipedia English The Free Encyclopedia

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Tropical wave
Tropical waves, easterly waves, or tropical easterly waves, also known as African easterly waves in the Atlantic region, are a type of atmospheric trough, an elongated area of relatively low air pressure, oriented north to south, which moves from east to west across the tropics causing areas of cloudiness and thunderstorms. West-moving waves can also form from the tail end of frontal zones in the subtropics and tropics and may be referred to as easterly waves, but these waves are not properly called tropical waves; they are a form of inverted trough sharing many characteristics with fully tropical waves. All tropical waves form in the easterly flow along the equatorward side of the subtropical ridge or belt of high pressure which lies north and south of the Intertropical Convergence Zone (ITCZ). Tropical waves are generally carried westward by the prevailing easterly winds along the tropics and subtropics near the equator. They can lead to the formation of tropical cyclones in the north Atlantic and eastern north Pacific basins. Tropical wave study is aided by Hovmöller diagrams, a graph of meteorological data.

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Tropische Welle
Tropische Wellen (auch easterly waves, , genannt) sind Bereiche hoher Gewitteraktivität und Bewölkung, die ihren Ursprung in der innertropischen Konvergenzzone haben. Tropische Wellen werden gewöhnlich von Ostwinden, die auf den Breiten nahe dem Äquator vorherrschen, in westliche Richtung gebracht. Sie sind längliche, von Nord nach Süd orientierte Gebiete mit relativ niedrigem Luftdruck.

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Fale wschodnie
Fale wschodnie - rodzaj fal atmosferycznych.

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专业字典

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easterly wave
easterly weather 东风气候

Glosarium Pusat Bahasa Depdiknas Indonesia

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easterly wave
B: (Biologi) gelombang timur

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