cirrus cloud

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cirrus cloud

[′sir·əs ¦klau̇d]
(meteorology)
A principal cloud type composed of detached cirriform elements in the form of white, delicate filaments, of white (or mostly white) patches, or narrow bands. Abbreviated Ci.
References in periodicals archive ?
Now, using vapor and particles harvested from the atmosphere, researchers have teased out more details about how cirrus clouds form.
High cirrus clouds are comprised of small ice crystals, and aerosols are thought to affect these clouds too, although these effects are even more difficult to quantify.
August 12, 1916 was a mild day in Paris, with bright sunlight shadowed intermittently by cirrus clouds.
He has been actively conducting research in the modeling of the optical and radiative properties of clouds and aerosols, in particular cirrus clouds, and their applications to space-borne and ground-based remote sensing.
A Met Office spokesman said the phenomenon occurs when thin wispy cirrus clouds - made of ice crystals - are at a specific angle to the sun.
To separate these motions from the jet stream in which the hot spots reside, the scientists also tracked the movements of small "scooter" clouds, similar to cirrus clouds on Earth.
It also will take measurements in two new bands, one to observe high altitude cirrus clouds and one to observe water quality in lakes and shallow coastal oceans as well as aerosols.
Are cirrus clouds found higher or lower in the sky than cumulus clouds?
Are cirrus clouds found higher or lower in route to Asia in 1492 whereabouts in the Americas did he land?
Cirrus clouds "point" to good weather but usually mean bad weather will be on its way in the next 24 hours or so.
An 'upside down rainbow' or circumhorizontal arc, is an optical phenomenon formed by the sun shining on and reflecting off ice crystals in high level cirrus clouds to form a halo.
High cirrus clouds dimmed the sun ever so slightly, and with little chop on the water, nearly two dozen volunteer boat captains with decades of experience fishing Quabbin were matched up with Special Olympic anglers.