An exit limit, not a jellyfish, on Africa
An exit limit, not a jellyfish, on Africa
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No, this is not an image of a jellyfish floating in the ocean. Twilight Zone. It is a satellite image of a cloud hovering over the surface of the Earth at night. The peculiar form is the product of a Exit limit associated with a rotating electrical storm over Mali.
Thunderstorms often develop on hot days as hot air rises and moisture condenses in towering cumulus clouds and cumulonimbus clouds With downpours and lighting in their centers. The falling rain cools the air and creates a downward flow that extends outward in a circular way once it reaches the ground, much like the pancake dough that spreads out after pouring it onto an iron.
The exit limit, sometimes called front burst, is the front edge of a pool of fresh air that stretches near an electrical storm. Exit limits can persist for many hours after an electrical storm, and can travel hundreds of kilometers from where they were formed.
"In this case, the fact that the outflow limit is only present on one side of the storm is the result of wind shear in the environment, "he explained José Munchak, a research meteorologist based at NASA's Goddard Space Flight Center. (Wind shear is due to differences in wind speed or direction with height). "The arc-shaped cloud line is due to the fact that less dense air rises above the limit".
The fronts of the gusts sometimes have a sinister aspect shelf Y roll of clouds That signals the arrival of the stormy weather. In dusty areas, they can build dust walls known as haboobs. Exit limits can even sweep enough flying insects, birds and other debris that the collection of creatures and debris appears on the weather radar. The intermittent winds in the limits of exit can pose serious problems for airplanes trying to take off or land.
The image was acquired by the "Band day-night" (DNB) in the Radiometer visible for infrared images (VIIRS) in Suomi NPP at the beginning of September 27, 2018. The DNB sensor detects faint light signals, such as auroras, overhead lights and city lights.
Image of the Earth Observatory of NASA by Joshua Stevens, using data from the band VIIRS day-night Suomi National Polar-orbiting Partnership. Story of Adam Voiland.
SOURCE LINK ERESVIRAL.COM https://www.beviral.online
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