Nombre total de pages vues

Affichage des articles dont le libellé est ASTRONOMY - Mammatus Clouds over Nebraska. Afficher tous les articles
Affichage des articles dont le libellé est ASTRONOMY - Mammatus Clouds over Nebraska. Afficher tous les articles

16/02/2023

ASTRONOMY - Mammatus Clouds over Nebraska

 2023 February 12

An unremarkable red building is seen past a large parking lot. 
Above them both are a bank of very unusual clouds with 
many nodules pointing down.
The scene is lit by sunlight from the side. 
Please see the explanation for more detailed information.

Mammatus Clouds over Nebraska
Image Credit & Copyright: Jorn Olsen Photography

Explanation: When do cloud bottoms appear like bubbles? Normally, cloud bottoms are flat. This is because moist warm air that rises and cools will condense into water droplets at a specific temperature, which usually corresponds to a very specific height. As water droplets grow, an opaque cloud forms. Under some conditions, however, cloud pockets can develop that contain large droplets of water or ice that fall into clear air as they evaporate. Such pockets may occur in turbulent air near a thunderstorm. Resulting mammatus clouds can appear especially dramatic if sunlit from the side. The mammatus clouds pictured here were photographed over HastingsNebraska during 2004 June.

VILLES BIONIQUES DU FUTUR - King’s forest : des chalets-feuilles au Maroc

Ces trois chalets sont des résidences de luxe, près de Fès, au Maroc, dans la forêt de Louajriyine. Bâtis sur une pente, ils offrent une vis...