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cloud

In meteorology, a cloud is an aerosol comprising a visible mass of minute liquid droplets, frozen crystals, or particles suspended in the atmosphere above the surface of a planetary body. The droplets and crystals may be made of water or various chemicals. On Earth, clouds are formed as a result of saturation of the air when it is cooled to its dew point, or when it gains sufficient moisture (usually in the form of water vapor) from an adjacent source to raise the dew point to the ambient temperature. They are seen in the Earth's homosphere (which includes the troposphere, stratosphere, and mesosphere). Nephology is the science of clouds which is undertaken in the cloud physics branch of meteorology. There are two methods of naming clouds in their respective layers of the atmosphere; Latin and common. Cloud types in the troposphere, the atmospheric layer closest to Earth's surface, have Latin names due to the universal adaptation of Luke Howard's nomenclature. Formally proposed in 1802, it became the basis of a modern international system that divides clouds into five physical forms that appear in any or all of three altitude levels (formerly known as étages). These physical types, in approximate ascending order of convective activity, include stratiform sheets, cirriform wisps and patches, stratocumuliform layers (mainly structured as rolls, ripples, and patches), cumuliform heaps, and very large cumulonimbiform heaps that often show complex structure. The physical forms are divided by altitude level into ten basic genus-types.
Lighthouse. - Lighthouse in the Netherlands.
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Lighthouse.

Added today by Zeta

14

Sunset with palm - A beautiful sunset with a palm tree
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Sunset with palm

Added 3 days ago by ha ha

20

Finland autumn lake - Finland autumn lake
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Finland autumn lake

Added 4 days ago by mak

18

Finland autumn lake - Finland. Autumnal lake
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Finland autumn lake

Added 4 days ago by mak

44

Wawel at sunset - Wawel at sunset.
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Wawel at sunset

Added 4 days ago by Zeta

135 1

The coming storm. - The coming storm over the lake.
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The coming storm.

Added 4 days ago by Zeta

57

Swiss Alps. - Panorama of the Swiss Alps.
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Swiss Alps.

Added 4 days ago by Zeta

47

Lake Irene. - Lake Irene in Colorado.
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Lake Irene.

Added 4 days ago by Zeta

67

London - Thames - Famous bridge on the River Thames in London
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London - Thames

Added 6 days ago by Mila

79

Sky by the sea. - Cloudy sky by the sea.
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Sky by the sea.

Added 6 days ago by Grażyna

154

Rays of the sun. - Rays of the setting sun.
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Rays of the sun.

Added week ago by Zeta

97 1

Orthodox. - Orthodox church by the river at sunset.
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Orthodox.

Added 8 days ago by Zeta

124 1

church of Bettmeraralp - church of Bettmeraralp in Valais
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church of Bettmeraralp

Added 8 days ago by gra

108

Holiday. - Lonely white sail on the sea.
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Holiday.

Added 11 days ago by Grażyna

72

Cottage on the island. - Cottage on an island on the lake.
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Cottage on the island.

Added 11 days ago by Zeta

162

Swiss Alps. - Houses in Grisons in the Swiss Alps.
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Swiss Alps.

Added 11 days ago by Zeta

190

Golden Gate Bridge. - Golden Gate bridge in the fog.
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Golden Gate Bridge.

Added 12 days ago by Zeta

129

Descent into the clouds. - Descent from the mountains into the clouds.
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Descent into the clouds.

Added 12 days ago by Zeta

79

Beach in Sri Lanka. - Beach in Sri Lanka with a boat on the shore.
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Beach in Sri Lanka.

Added 12 days ago by Zeta

41

Summer sunset. - Summer sunset over the water.
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Summer sunset.

Added 12 days ago by Zeta

57

Florida. - A wooden promenade in Florida.
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Florida.

Added 12 days ago by Zeta

43

Boats at the pier. - Boats at the pier on the lake.
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Boats at the pier.

Added 12 days ago by Zeta

62

mountain waterfall - oj la la la la la la la
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mountain waterfall

Added 13 days ago by MAJAMA

34 1

balloon in the air - oj la la la la la la la
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balloon in the air

Added 13 days ago by MAJAMA

105

Cloudy sky. - Cloudy sky over the field.
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Cloudy sky.

Added 13 days ago by Zeta

149

Sunset over the bay. - Sunset over the bay.
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Sunset over the bay.

Added 13 days ago by Zeta

38

Railway station. - Railway station in Canada.
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Railway station.

Added 13 days ago by Zeta

90 1

Path by the pond. - Path by the pond. Before storm.
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Path by the pond.

Added 2 weeks ago by Zeta

83 2

Dutch windmills. - Dutch windmills.
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Dutch windmills.

Added 2 weeks ago by Zeta

69 1

Sunset. - Sunset in Vietnam.
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Sunset.

Added 2 weeks ago by Zeta

61

Evening on the beach. - Evening on the beach. Thailand.
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Evening on the beach.

Added 2 weeks ago by Zeta

72

A house by the lake. - A house by the lake in Sweden.
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A house by the lake.

Added 2 weeks ago by Zeta

105 1

Orthodox. - A small, white Orthodox church.
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Orthodox.

Added 2 weeks ago by Zeta

48

Caucasus. Mount Ararat. - Caucasus. Mount Ararat. Armenia.
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Caucasus. Mount Ararat.

Added 2 weeks ago by Zeta

40

Holiday. - Holiday. Seaside landscape.
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Holiday.

Added 2 weeks ago by Grażyna

101

Loch Ness. - Ruins of Urquhart Castle over Loch Ness in Scotland.
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Loch Ness.

Added 3 weeks ago by Zeta

127 1