- downdraft shear
- см. downdraft wind shear
Авиасловарь. М.А.Левин. 2004.
downdraft shear
Смотреть что такое "downdraft shear" в других словарях:
Wind shear — Wind shear, sometimes referred to as windshear or wind gradient, is a difference in wind speed and direction over a relatively short distance in the atmosphere. Wind shear can be broken down into vertical and horizontal components, with… … Wikipedia
wind shear — n. a sudden change in the direction of the wind; esp., a sudden, dangerous downdraft encountered as by aircraft … English World dictionary
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Vertical draft — For the band, see Air Pocket (band) An updraft or downdraft is the vertical movement of air as a weather related phenomenon. One of two forces causes the air to move. Localized regions of warm or cool air will exhibit vertical movement. A mass of … Wikipedia
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microburst — The strong downdraft that spreads horizontally just above the ground to form a sharply defined gust front. An aircraft approaching this microburst or gust front may encounter a headwind followed by a strong downdraft and finally end up with a… … Aviation dictionary
Tornadogenesis — A sequence of images showing the birth of a supercellular tornado. First, the rotating cloud base lowers. This lowering becomes a funnel, which continues descending while winds build near the surface, kicking up dust and other debris. Finally,… … Wikipedia
