Lenticularis
Lenticularis (len) ( Latin "lens-shaped", from lens "lens") are clouds in the shape of lenses or almonds , which are often very elongated and usually have clearly defined boundaries. Occasionally, iridescence occurs.
Such clouds occur most frequently when the clouds are of orographic origin (also called foehn cloud , foehn boat or foehn fish ), when the air is lifted over the mountains ( lee waves ). In this case they are stationary even in strong winds, i. H. the air flows through the cloud. Since they indicate standing waves in the atmospheric currents, they are often approached by glider pilots and used to gain altitude. The Pileus clouds show a certain relationship with them .
Lenticular clouds can also arise as a result of shear waves at the boundary between two superimposed layers of air with different wind directions . Then they usually have their own movement . In the Mediterranean region, this cloud formation is a strong indication of the impending mistral .
The Silesian name Moazagotl ( Matz'ens Gottlieb ), which was spread by glider pilots , arose in the Giant Mountains .
The term lenticularis is mainly used for cirrocumulus , altocumulus and stratocumulus .
Because of their unusual shapes, they are sometimes misinterpreted as UFOs .
layered lenticular cloud over Funchal, Madeira
Lenticular cloud
Lenticular cloud
multi-layer lenticular cloud, illuminated by the evening sun
multilayered lenticular clouds, Soda Lake, Mojave Desert, California
Foehn lens over the Essen-Rostocker Hütte in the Hohe Tauern
stationary hair dryer lens over the Glärnisch massif (Swiss Alps)
multilayered lenticular clouds over Baguia , East Timor
multilayered lenticularis above Monte Ceneri, view from Brione s / M, April 9, 2017, 7:35 pm
Web links
- unusual shape of a lenticularis cloud, misinterpreted as a UFO ( memento from September 28, 2007 in the Internet Archive )
