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Cloud Classification

Cloud Classification. Latin Root Translation cumulus heap Stratus layer Cirrus curl of hair nimbus rain Alto middle (or high). Cloud Classification. Height of cloud base. For example, cloud names containing the prefix

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Cloud Classification

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  1. Cloud Classification Latin RootTranslation cumulus heap Stratus layer Cirrus curl of hair nimbus rain Alto middle (or high)

  2. Cloud Classification • 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.

  3. Clouds by Height of Cloud Base High-Level Clouds Mid-Level Clouds Bases typically appear between 6,500 to 20,000 feet Primarily water droplets can also be composed of ice crystals when temperatures are cold enough. altocumulus, altostratus. • Form above 20,000 feet • Primarily composed of ice crystals • Typically thin and white • can appear in a magnificent array of colors when the sun is low on the horizon. • cirrus and cirrostratus

  4. Clouds by Height of Cloud Base Low-level Clouds Vertically Developed Clouds Can grow to heights in excess of 39,000 feet Release incredible amounts of energy through the condensation of water vapor within the cloud itself fair weather cumulus and cumulonimbus. • Bases generally lie below 6,500 feet • Mostly composed of water droplets • when temperatures are cold enough, these clouds may also contain ice particles and snow. • nimbostratus and stratocumulus.

  5. Contrail • Condensation trail, is a cirrus-like trail of condensed water vapor often resembling the tail of a kite. • Produced at high altitudes where extremely cold temperatures freeze water droplets in a matter of seconds before they can evaporate. • Injection of water vapor into the atmosphere by exhaust fumes from a jet engine.

  6. Mammatus Clouds • Sagging pouch-like structures • rare example of clouds in sinking air

  7. Orographic Clouds • Forced by the earth's topography • Develop in response to the forced lifting of air by the earth's topography (mountains for example).

  8. Pileus Clouds • Smooth capping clouds Pileus (Latin for "skullcap") • Smooth cloud found attached to either a mountain top or growing cumulus tower.

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