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This is an accepted version of this page This is the latest accepted revision, reviewed on 18 December 2024. Visible mass of liquid droplets or frozen crystals suspended in the atmosphere For other uses, see Cloud (disambiguation). Cloudscape over Borneo, taken by the International Space Station Part of a series on Weather Temperate and polar seasons Winter Spring Summer Autumn Tropical ...
the effective cloud amount, the cloud amount weighted by the cloud IR emissivity, with a global average of 0.5; the cloud (visible) optical depth varies within a range of 4 and 10. the cloud water path for the liquid and solid (ice) phases of the cloud particles; the cloud effective particle size for both liquid and ice, ranging from 0 to 200 μm
Noctilucent clouds form mostly near the polar regions, [8] because the mesosphere is coldest there. [15] Clouds in the southern hemisphere are about 1 km (3,300 ft) higher than those in the northern hemisphere. [8] Ultraviolet radiation from the Sun breaks water molecules apart, reducing the amount of water available to form noctilucent clouds.
Other colors occur naturally in clouds. Bluish-grey is the result of light scattering within the cloud. In the visible spectrum, blue and green are at the short end of light's visible wavelengths, while red and yellow are at the long end. [20] The short rays are more easily scattered by water droplets, and the long rays are more likely to be ...
It will be partially visible in all 48 contiguous states and marks the last total solar eclipse until August 23, 2044, according to NASA. ... Why science says clouds could vanish during solar ...
Common optical phenomena are often due to the interaction of light from the Sun or Moon with the atmosphere, clouds, water, dust, and other particulates. One common example is the rainbow , when light from the Sun is reflected and refracted by water droplets.
Cloud albedo strongly influences the Earth's energy budget, accounting for approximately half of Earth's albedo. [1] [2] Cloud albedo is influenced by the conditions of cloud formation and variations in cloud albedo depend on the total mass of water, the size and shape of the droplets or particles and their distribution in space. [3]
Here, the path of sunlight through the atmosphere is elongated such that much of the blue or green light is scattered away from the line of perceivable visible light. This phenomenon leaves the Sun's rays, and the clouds they illuminate, abundantly orange-to-red in colors, which one sees when looking at a sunset or sunrise.