Lee wave - Wikipedia
In meteorology, lee waves are atmospheric stationary waves. The most common form is mountain waves, which are atmospheric internal gravity waves.
The Dangers Of Mountain Wave, And How To Avoid It
2024年10月10日 · While you can't "see" mountain wave, there are visual cues when there's moisture and when the zone is producing up and down drafts. Rows of lenticular clouds that extend downwind from a mountain barrier are an excellent indication that …
Mountain Wave Turbulence: Where You Find It, And How To …
There are three types of clouds you may see that will give you a good idea of where the waves are at, and which spots to avoid. Cloud 1: Cap Cloud. A cap cloud is formed when a moisture-rich airmass is forced up and over a ridgeline, forming a cloud that 'caps' the mountain peak.
Mountain Waves - SKYbrary Aviation Safety
These clouds are a good indication of the presence of mountain waves but, if the air is dry, there may not be any cloud to see. Windward of the mountains IMC conditions may likely be present, whereas due to the “Foehn Effect” VMC conditions are generally expected to the leeward.
Wave cloud - Wikipedia
The atmospheric internal waves that form wave clouds are created as stable air flows over a raised land feature such as a mountain range, and can form either directly above or in the lee of the feature. As an air mass travels through the wave, it undergoes repeated uplift and descent.
17.7: Mountain Waves - Geosciences LibreTexts
2024年12月14日 · 17.7.2. Lenticular Clouds. In the updraft portions of mountain waves, the rising air cools adiabatically. If sufficient moisture is present, clouds can form, called lenticular clouds. The first cloud, which forms over the mountain crest, is …
Gravity waves triggered by the flow over a mountain are referred to as ‘mountain waves’ or ‘lee waves’. Mountain waves sometimes reveal their presence through dramatic cloud formations, such as smooth lenticular clouds (see Figures 4 and 5) and ragged rotor clouds.
mountain-wave cloud - Glossary of Meteorology
2024年3月29日 · A cloud that forms in the rising branches of mountain waves and occupies the crests of the waves. The most distinctive are the sharp-edged, lens-, or almond-shaped lenticular clouds, but a variety of stratocumulus , altocumulus , and cirrocumulus forms appear in both the main, vertically propagating waves and in the lee waves.
UBC ATSC113 Flying - Mountain Waves - University of British …
Describe the characteristics and causes of mountain waves, relate them to winds and stability using the Froude-number tool, and describe how they affect flight. When the air is relatively cold near the ground and warmer aloft, the air is statically stable (see Learning Goal 3b).
Lee wave | Mountain Wave, Rotor Cloud & Atmospheric …
Numerous equally spaced lee waves are often seen where they are not interfered with by other mountains, such as over the sea. They may produce clouds, called wave clouds, when the air becomes saturated with water vapour at the top of the wave.
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