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Topic: Cumulus cloud

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	Clouds From Space
		All clouds block some fraction of the incoming solar radiation, and absorb some fraction of the heat radiated back from the Earth's surface, and the balance between these two processes is hard to quantify.
		The amount of high-level cirrus cloud is predicted to rise as the cumulus decreases.
		The V-shaped cloud structure is normally associated with cold fronts that cross the Gulf of Mexico and Florida in late winter and early spring.
	www.solarviews.com /eng/cloud1.htm (2228 words)

	Cumulus cloud - Wikipedia, the free encyclopedia
		A cumulus cloud (Cu) is a cloud belonging to a class characterized by puffs, mounds or towers, with flat bases and tops that often resemble cauliflower.
		For this reason, cumulus clouds are useful to glider pilots seeking to stay aloft for long periods.
		Cumulus clouds often form in anti-cyclonic weather, but sometimes the descending air in the anticyclone produces an inversion layer which prevents the air rising to a height where its moisture can condense.
	en.wikipedia.org /wiki/Cumulus (272 words)

	Cloud - Wikipedia, the free encyclopedia
		A cloud is a visible mass of condensed droplets or ice crystals suspended in the atmosphere above the surface of the Earth or another planetary body.
		Clouds reflect all visible wavelengths of light equally and are usually white, but they can appear grey or even fl if they are so thick or dense that sunlight cannot pass through.
		Both Jupiter and Saturn have an outer cloud deck composed of ammonia clouds, an intermediate deck of ammonium hydrosulfide clouds and an inner deck of water clouds.
	en.wikipedia.org /wiki/Cloud (1707 words)

	Cumulus Clouds
		Cumulus clouds look like white fluffy balls of cotton wool and mark the vertical extent of convection or thermal uplift of air taking place in the in the atmosphere.
		The level at which condensation and cloud formation begins is defined by the flat cloud base, and its height will depend upon the humidity of the rising air.
		Small cumulus clouds are evidence of relatively stable air during fair weather.
	www.ace.mmu.ac.uk /eae/Weather/Older/Cumulus_Clouds.html (249 words)

	cloud - Hutchinson encyclopedia article about cloud
		Clouds are formed when moisture in the air condenses, and are composed of millions of water droplets suspended in air.
		Clouds, like fogs or mists, that occur at lower levels, are formed by the cooling of air containing water vapour, which generally condenses around tiny dust particles.
		Clouds are classified according to the height at which they occur, and by their shape.
	encyclopedia.farlex.com /cloud (797 words)

	Cumulus: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-10-19)
		An altocumulus is a cloud belonging to a class characterized by globular masses or rolls in layers or patches, the individual elements being larger and darker than...
		(as opposed to convective clouds that are as tall or...
		Altocumulus castellanus are altocumulus clouds with a turreted appearance....
	www.absoluteastronomy.com /encyclopedia/c/cu/cumulus.htm (839 words)

	Types Of Clouds (Site not responding. Last check: 2007-10-19)
		Clouds are a combination and variations of the three general types.
		The size of a cumulus cloud depends on the force of the upward movement of air and the amount of moisture in the air.
		The clouds that produce heavy thunderstorms in summer are a form of cumulus clouds called cumulonimbus.
	schoolscience.rice.edu /duker/weatypeclouds.html (338 words)

	Weather Glossary - C
		In the mid-latitudes, cloud bases are usually found between 20,000 to 30,000 feet, and it is the highest cloud that forms in the sky, except for the tops, or anvils, of cumulonimbus, which occasionally build to excessive heights.
		Used in conjunction with a ceiling light, it determines cloud height at night, based on the angle of a projected light on the clouds, the observer, and the ceiling light.
		A portion of a cumulonimbus cloud that appears as a pouch or udder on the under surface of the cloud.
	www.cagenterprises.com /wx_glossary_c.html (3310 words)

	Cumulus Clouds
		Cumulus clouds belong to the Clouds with Vertical Growth group.
		Cumulus clouds generally have a base height of 1000m and a width of 1km.
		Cumulus cloud cells (the individual puffs of clouds) are about the size of your fist or larger when you hold up your hand at arm's length to look at the cloud.
	www.windows.ucar.edu /tour/link=/earth/Atmosphere/clouds/cumulus.html (188 words)

	History of the Cumulus Cloud Rule
		Cumulus clouds are thus a potential threat for natural lightning as well as triggered lightning.
		The cumulus cloud rule specifies the unacceptable meteorological conditions for a launch, in terms of that cloud type.
		The cumulus cloud rule specifies the unacceptable meteorological conditions for a launch, in terms of observed cumulus clouds.
	www.aero.org /publications/crosslink/summer2001/05_sidebar6.html (632 words)

	ASAP Convective Cloud Mask
		The convective cloud mask is not only important for informing the aviation community on the location of convective clouds but also is the first step in the development of a convective storm initiation (CI) and development nowcasting system.
		Unfortunately, the "brightness threshold" technique occasionally misclassifies bright, immature cumulus and thick stratus clouds as mature cumulus near solar noon, as the maximum amount of solar radiation is reflected and detected by the GOES visible sensor.
		Cloud mask values of 1 indicate the presence of immature cumulus and values of 2 indicate mature cumulus or cirrus clouds.
	cimss.ssec.wisc.edu /asap/products/convective_cloud_mask/index.html (801 words)

	Plymouth State Meteorology Program Cloud Boutique
		Cirrocumulus are high clouds that have a distinct patchy and/or wavelike appearance, such as, in our patchwork cirrocumulus photo, composed of many individual cloud elements, or in our wavy cirrocumulus photo with its banded linear structure.
		Cumulus are usually puffy and often have very distinct edges and usually a noticeable vertical development.
		Cap clouds form when air containing water vapor is uplifted on the windward slide of the slope and reaches saturation producing liquid water cloud droplets and a cloud which can "cap" the summit.
	vortex.plymouth.edu /clouds.html (1686 words)

	S'COOL Cloud Types Tutorial
		The names used for the clouds are based on three factors: the altitude at which the cloud occurs, the shape of the cloud, and whether the cloud is producing precipitation.
		Cloud cover tends to be mostly cloudy to overcast, but distinct cloud pieces are visible, in contrast to the uniform and flat character of stratus clouds.
		Cumulus clouds are puffy, individual clouds typically associated with fair weather.
	asd-www.larc.nasa.gov /SCOOL/tutorial/clouds/cloudtypes_transcript.html (1482 words)

	Cloud Types: common cloud classifications
		Clouds are classified into a system that uses Latin words to describe the appearance of clouds as seen by an observer on the ground.
		For example, cloud names containing the prefix "cirr-", as in cirrus clouds, are located at high levels while cloud names with the prefix "alto-", as in altostratus, are found at middle levels.
		High-level clouds are typically thin and white in appearance, but can appear in a magnificent array of colors when the sun is low on the horizon.
	ww2010.atmos.uiuc.edu /(Gh)/guides/mtr/cld/cldtyp/home.rxml (329 words)

	Cumulus Clouds (Site not responding. Last check: 2007-10-19)
		Cumulus clouds are probably the most recognized clouds out of all of the cloud types.
		Cumulus clouds are formed by frontal lifting or convection, which is simply the rising of warm air, which then cools and condenses to form a cumulus cloud.
		A low layer of stratocumulus clouds appear near sunset and are the spreading remains of larger cumulus clouds.
	ellerbruch.nmu.edu /classes/cs255f02/cs255students/abarker/P4/cumulus.html (514 words)

	Project NOVA
		Cumulus clouds are formed when moist air is warmed near the ground, rises, and is cooled.
		A type of cumulus cloud, cumulo-nimbus, is frequently referred to as a rain cloud or thunderhead.
		A cloud that is growing fast and has ice forming at the top may be seeded by dropping either siler iodide crystals or dry ice into the cloud from an airplane.
	www.uncfsu.edu /msec/nova/timmod2o.htm (1318 words)

	Cumulus clouds Climate glossary - Flags, Maps, Economy, Geography, Climate, Natural Resources, Current Issues, ...
		Cirrus clouds typically have a fibrous or hairlike appearance, and often are semi-transparent.
		Cbs, towering cumulus clouds, and ACCAS clouds all are visible forms of convection.
		Cumulus - Detached clouds, generally dense and with sharp outlines, showing vertical development in the form of domes, mounds, or towers.
	www.geographic.org /climate/c.html (1685 words)

	USATODAY.com (Site not responding. Last check: 2007-10-19)
		Cumulus clouds form as water vapor condenses in strong, upward air currents above the earth's surface.
		Cumulus clouds are usually very isolated with large areas of blue sky in between the clouds.
		The individual cloud elements form where the air is rising while the blue sky in between the cloud elements indicates sinking air.
	www.usatoday.com /weather/wcumulus.htm (467 words)

	SCM ASTEX
		The cumulus clouds always had their bases very close to the top of the SML and were produced when the SML became conditionally unstable as the result of the build up of moisture in the layer.
		During ASTEX the cumulus clouds were observed to form in clusters which on occasions had lifetimes of several hours, and it was frequently noted that drizzle accompanied the penetration of these clusters into the stratocumulus base.
		The cumulus clouds on their own were not deep enough (the cloud top temperature was always above freezing) to produce precipitation, and generally the stratocumulus was too thin to produce drizzle.
	kiwi.atmos.colostate.edu /scm/astex.html (3533 words)

	ITSC Data Mining Solutions Center
		Cloud detection algorithms based on spectral properties of the data often miss these clouds.
		This is due to the fact that such clouds can have a diameter of 1km or less, which is significantly less than the size of a single infrared pixel.
		Identification of cumulus cloud fields cannot be based on a single pixel value, since the intensity of the pixels in the field varies dramatically.
	datamining.itsc.uah.edu /case_studies/clouds.html (418 words)

	Fair Weather Cumulus Clouds: puffy cotton balls floating in the sky (Site not responding. Last check: 2007-10-19)
		Probably the most familiar of the classifications is the cumulus cloud and the variety of shapes, sizes, and colors it attains.
		Fair weather cumulus have the appearance of floating cotton with a flat base and distinct outlines, and colors range from white to light gray.
		Fair weather cumulus are fueled by buoyant bubbles of air, or thermals that rise upwards from the earth's surface.
	ww2010.atmos.uiuc.edu /(Gh)/guides/mtr/cld/vrt/frcu.rxml (306 words)

	How to be a Storm Spotter - Read the Clouds
		Names of specific types of clouds are created by combining the name of the cloud's shape with the name of the cloud's height.
		Nimbo or nimbus might be used with cumulus or stratus to indicate a cloud formation that is producing rain.
		These clouds could be either cumulonimbus which would be a puffy, vertically-rising rain cloud or nimbostratus which would be a sheet or flat-looking rain cloud.
	www.boatsafe.com /kids/weather1.htm (1199 words)

	Nasaexplores
		Clouds are classified according to the height of the cloud base.
		Clouds are white because the water droplets that make up clouds are much larger than the molecules that scatter blue light.
		Cumulus clouds are the cotton ball clouds that are associated with heavy rain, lightning, and thunder.
	www.nasaexplores.com /show_k4_teacher_st.php?id=030109105311 (341 words)

	S'COOL Cloud Chart: Cumulus (Site not responding. Last check: 2007-10-19)
		This is a beautiful example of trade cumulus (i.e., cumulus associated with the tradewinds) in tht Tropics.
		Here is a great shot showing a line of cumulus clouds, most likely formed because of the presence of the island.
		This is a neat one: note that despite their wispy appearance, these clouds are casting a strong shadow on the island.
	www.uvi.edu /Physics/SCI3xxWeb/Water/Scool/cumulus.html (462 words)

	Low Level Clouds
		Cumulus clouds, next to fog and stratus, are the lowest and nearest to us.
		Clouds should only manifest when sufficient lift is present to take the moisture above the lifted condensation level-the altitude at which clouds get their flat bases.
		We have a cloud forming in the shape of a carpenters square joined at a corner by a truly square cloud.
	www.weatherwars.info /lowclouds.htm (453 words)

	Earth Science Picture of the Day (Site not responding. Last check: 2007-10-19)
		Cumulus cloud types (cumulus humilus, cumulus fractus and cumulus congestus clouds) fill up the lower portion of the picture, but the centerpiece of the photo is the donut-shaped altocumulus cloud.
		For a hole to occur in a cloud, some process must be at work to remove the cloud droplets or crystals.
		For example, if a cloud is seeded with silver iodine or carbon dioxide, a hole could occur in a portion of the cloud deck.
	epod.usra.edu /archive/epodviewer.php3?oid=99360 (205 words)

	The Water Cycle: Water storage in the atmosphere, from USGS Water Science Basics
		Cooler temperatures aloft allow the vapor to condense into clouds and strong winds move the clouds around the world until the water falls as precipitation to replenish the earthbound parts of the water cycle.
		Clouds are, of course, the most visible manifestation of atmospheric water, but even clear air contains water—water in particles that are too small to be seen.
		The key to why clouds float is that the density of the same volume of cloud material is less than the density of the same amount of dry air.
	ga.water.usgs.gov /edu/watercycleatmosphere.html (615 words)

	Clouds (Site not responding. Last check: 2007-10-19)
		Clouds often form as air is forced over mountain ranges.
		Vertically rising cumulus in the distance are at the leadimg edge of a cold front.
		The cloud bottoms are full of moisture which will soon fall as rain.
	www.carlwozniak.com /clouds/CloudPix.html (112 words)

	Cumulus poster from AMS '99 (Benner & Evans)
		We therefore constructed cumulus cloud structure with high-resolution imagery.
		3D cloud structure was obtained by scaling the adiabatic LWC profile (computed from the observed mean sounding) to match the retrieved liquid water path and cloud thickness for each pixel.
		For tropical oceanic cumulus, the IPA and TIPA errors are well correlated to cloud fraction (Fig.
	nit.colorado.edu /ams99/ams99.html (701 words)

	[No title]
		This is a partly cloudy cumulus scene, with the cloud base quite low, as might be typical on a humid day.
		This is an example of a cumulus cloud as it is just beginning to form, or as it has mostly evaporated (a time sequence would be necessary to figure out which one).
		This is a beautiful example of trade cumulus (i.e., cumulus associated with the tradewinds) in the Tropics.
	www.atmos.washington.edu /~ovens/clouds/Cumulus/list.html (647 words)

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