cloud formations defined
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cloud Definition of cloud. 1  1 : a visible mass of particles of condensed vapor (as water or ice) suspended in the atmosphere of a planet (as the earth) or moon.
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Cirrostratus cloud Cirrostratus cloud. Cirrostratus /ˌsɪroʊˈstrɑːtəs/ is a high, very thin, generally uniform stratiform genus-type of cloud, composed of ice-crystals. It is difficult to detect and is capable of forming halos when the cloud takes the form of thin cirrostratus nebulosus.
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Cloud names and classifications Cloud names and classifications. Clouds are continually changing and appear in an infinite variety of forms. This is a guide to the 10 main named groups of clouds. Clouds are continually changing and appear in an infinite variety of forms. The classification of clouds is based on a book written by Luke Howard, a London pharmacist and amateur meteorologist, in 1803. His book, The Modifications of Clouds, named the various cloud structures he had studied.
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Clouds Cloud Types. Clouds are classified into four basic categories, depending largely on the height of their bases above the ground. High-level clouds, called cirrus clouds, can reach heights of 20,000 feet (6,000 meters) and are typically thin. They do not produce rain and often indicate fair weather.
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- In its long history, Istanbul has served as the capital city of the Roman Empire (330395), the Eastern Roman (Byzantine) Empire (3951204 and 12611453), the Latin Empire (12041261), and the Ottoman Empire (14531922). The city was chosen as joint European Capital of Culture for 2010.
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Ten Basic Cloud Types Altocumulus. White and/or gray patch, sheet or layered clouds, generally composed of laminae (plates), rounded masses or rolls. They may be partly fibrous or diffuse. When the edge or a thin semitransparent patch of altocumulus passes in front of the sun or moon a corona appears.
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- Unconformities Unconformities are gaps in the geologic record that may indicate episodes of crustal deformation, erosion, and sea level variations. They are a feature of stratified rocks, and are therefore usually found in sediments (but may also occur in stratified volcanics).
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10 Rare Cloud Formations Mammatus are pouch-like cloud structures and a rare example of clouds in sinking air. Sometimes very ominous in appearance, mammatus clouds are harmless and do not mean that a tornado is about to form – a commonly held misconception. In fact, mammatus are usually seen after the worst of a thunderstorm has passed. 3.
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High Clouds â Definition Cloud. A visible collection of minute particle matter, such as water droplets and/or ice crystals, in the free air. A cloud forms in the atmosphere as a result of condensation of water vapor. Condensation nuclei, such as in smoke or dust particles, form a surface upon which water vapor can condense.
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Cloud forest A cloud forest, also called a fog forest, is a generally tropical or subtropical, evergreen, montane, moist forest characterized by a persistent, frequent or seasonal low-level cloud cover, usually at the canopy level.loud forests often exhibit an abundance of mosses covering the ground and vegetation, in which case they are also referred to as mossy forests. Mossy forests usually develop on the saddles of mountains, where moisture introduced by settling clouds is more effectively retained.
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Electron Cloud: Definition, Model & Theory At best, scientists can make guesses about where electrons are likely to be at any given time. Erratic electron behavior is best described by the electron cloud model. By definition, the electron cloud is the area around the nucleus of an atom where electrons are most likely to be found.
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What does the electron cloud model describe? Electron Cloud Definition: The region of negative charge surrounding an atomic nucleus that is associated with an atomic orbital. By Anne Marie Helmenstine, Ph.D.
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How to Identify the Different Types of Clouds The National Weather Service says there are four main categories of clouds: Cirro-form: Derived from the Latin word “cirro,” meaning “curl of hair,” this term describes whitish, wispy clouds composed of ice crystals. They typically are the first types of clouds to appear in the sky before a storm system, the NWS says.
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Interstellar cloud Interstellar cloud. An interstellar cloud is the generic name given to an accumulation of gas, plasma, and dust in our and other galaxies. Put differently, an interstellar cloud is a denser-than-average region of the interstellar medium. Depending on the density, size, and temperature of a given cloud, the hydrogen in it can be neutral (H I regions), ionized (H II regions) (i.e. a plasma), or molecular (molecular clouds).
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Molecular cloud Star portal. A molecular cloud, sometimes called a stellar nursery (if star formation is occurring within), is a type of interstellar cloud, the density and size of which permit the formation of molecules, most commonly molecular hydrogen (H2). This is in contrast to other areas of the interstellar medium that contain predominantly ionized gas.
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Cloud Sizes Clouds are formed from water vapor or crystals in the atmosphere. They can also be a collection of material drawn by gravity. Cloud sizes can range from tiny wisps of smoke to masses stretching dozens of miles.
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cloud noun. 1  The definition of a cloud is a visible mass of small water droplets or ice particles which are suspended in the sky. 2  Cloud is defined as a mass of smoke, dust, steam or a mass of things suspended in the air. An example of a cloud is what forms in the air just after a large explosion. An example of a cloud is the formation of steam above a factory. An example of a cloud is a large group of locusts traveling through the air.
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- Schenck v. United States, 249 U.S. 47 (1919), is a United States Supreme Court decision concerning enforcement of the Espionage Act of 1917 during World War I.chenck v. United States, 249 U.S. 47 (1919), is a United States Supreme Court decision concerning enforcement of the Espionage Act of 1917 during World War I.
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Molecular cloud A molecular cloud, sometimes called a stellar nursery (if star formation is occurring within), is a type of interstellar cloud, the density and size of which permit the formation of molecules, most commonly molecular hydrogen (H2). This is in contrast to other areas of the interstellar medium that contain predominantly ionized gas.
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- 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. The table below summarizes the four principal components of this classification system (Ahrens, 1994). Further classification identifies clouds by height of cloud base. 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. This module introduces several cloud groups.
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cloud Old English clud mass of rock, hill, related to clod. Metaphoric extension to raincloud, mass of evaporated water in the sky is attested by c.1200 based on similarity of cumulus clouds and rock masses. The usual Old English word for cloud was weolcan.
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- Nimbus clouds are cloud types that can indicate some type of precipitation. The word nimbus comes from the Latin language and stands for rain. There are two different types of nimbus clouds that indicate the type of precipitation. Continue Reading.
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Cloud seeding Cloud seeding is a form of weather modification, a way of changing the amount or type of precipitation that falls from clouds, by dispersing substances into the air that serve as cloud condensation or ice nuclei, which alter the microphysical processes within the cloud.
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Geological formation The definition and recognition of formations allow geologists to correlate geologic strata across wide distances between outcrops and exposures of rock strata. Formations were initially described to be the essential geologic time markers based on relative ages and the law of superposition.
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- Terrestrial cloud formation is the result of air in any of the lower three principal layers of Earth's atmosphere (collectively known as the homosphere) becoming saturated due to either or both of two processes: cooling of the air, and adding water vapor.
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10 Rare Cloud Formations A roll cloud is a low, horizontal tube-shaped arcus cloud associated with a thunderstorm gust front, or sometimes a cold front. Roll clouds can also be a sign of possible microburst activity. Cool air sinking air from a storm cloud’s downdraft spreads out across the surface with the leading edge called a gust front.