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Symbol Package
Illustration of a cirrocumulus cloud, a large, white patch or tuft without a gray shadow. Composed of supercooled liquid droplets (if they freeze, becomes cirrostratus - cirrocumuli are short lived) Each cloudlet appears no larger than a finger held at arms length. It occurs in patches or sheets, organized in rows like other cumulus, but since they are so small, cirrocumulus patches take on a finer appearance, sometimes referred to colloquially as
High clouds: Cirrocumulus
Illustration of cirrostratus clouds, thin, generally uniform clouds, composed of ice-crystals, capable of forming halos. When thick enough to be seen, they are whitish, usually with no distinguishing features.
High clouds: Cirrostratus
Illustration of cirrus clouds, which are characterized by thin, wisplike strands, often accompanied by tufts, leading to their common (non-standard) name of mare's tail. Cirrus clouds are formed when water vapor freezes into ice crystals at altitudes above 8000 meters (26,000 ft). Due to the sparse moisture at a high altitude, they tend to be very thin.
High clouds: Cirrus
Illustration of cumulonimbus clouds, tall, dense, and involved in thunderstorms and other intense weather. Cumulonimbus means
Low clouds: Cumulonimbus 1
Illustration of a cumulus cloud, a cloud with noticeable vertical development and clearly defined edges. Cumulus means
Low clouds: Cumulus 1
Illustration of stratocumulus clouds, belonging to a class characterized by large dark, rounded masses, usually in groups, lines, or waves. Weak convective currents create shallow cloud layers because of drier, stable air above preventing continued vertical development. Vast areas of subtropical and polar oceans are covered with massive sheets of stratocumuli.
Low clouds: Stratocumulus 1
Illustration of stratus clouds, meaning layer or blanket in Latin. Characterized by horizontal layering with a uniform base. Flat, featureless clouds of low altitude varying in color from dark gray to nearly white obscuring the disk of the sun. Essentially above-ground fog formed either through the lifting of morning fog or when cold air moves at low altitudes over a region.
Low clouds: Stratus 1
Illustration of an altostratus cloud; also referred to as
Middle clouds: Altostratus 1
Illustration of a nimbostratus cloud, a rain cloud characterized by a formless layer that is almost uniformly dark gray, of medium altitude, usually developing above 6500 ft (2000 m). Nimbo is from the Latin word
Middle clouds: Nimbostratus 1
Illustration of the moon undergoing phases; first quarter is heading towards a full moon.
Moon: first quarter
Illustration of a full moon
Moon: full
Illustration of the moon undergoing phases: last quarter is heading towards a new moon.
Moon: last quarter
Illustration of the moon undergoing phases: new moon. The Moon, in its monthly orbital motion around Earth, lies between Earth and the Sun, and is therefore in conjunction with the Sun as seen from Earth. At this time, the dark (unilluminated) portion of the Moon faces almost directly toward Earth, so that the Moon is not visible to the naked eye.
Moon: new
Illustration of the moon undergoing phases; waning (decreasing in size) crescent (name of shape), heading towards a new moon.
Moon: waning crescent
Illustration of the moon undergoing phases; waning (decreasing in size) gibbous (name of shape), heading towards a new moon.
Moon: waning gibbous
Illustration of the moon undergoing phases; waxing (increasing) crescent (shape), heading towards a full moon.
Moon: waxing crescent
Illustration of the moon undergoing phases; waxing (increasing in size) gibbous (name of shape), heading towards a full moon.
Moon: waxing gibbous
Illustration of a cloud with falling snow
Weather: snow
Illustration of hot air balloon
Hot air balloon 1
Illustration of hot air balloon
Hot air balloon 2
Representation of a city through various buildings
Urban: city 2
Illustration of a skyscraper with windows
Urban: city building 02
Illustration of a sky scraper with segments and ornament on top
Urban: city building 03
Illustration of a sky scraper without vertical segments
Urban: city building 04
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