Water vapor can be produced from the evaporation or boiling of liquid water or from the sublimation of ice.
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23 Facts About Water vapor
2.
Water vapor is transparent, like most constituents of the atmosphere.
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3.
Under typical atmospheric conditions, water vapor is continuously generated by evaporation and removed by condensation.
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4.
Water vapor is a relatively common atmospheric constituent, present even in the solar atmosphere as well as every planet in the Solar System and many astronomical objects including natural satellites, comets and even large asteroids.
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5.
Likewise the detection of extrasolar water vapor would indicate a similar distribution in other planetary systems.
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6.
Water vapor can be indirect evidence supporting the presence of extraterrestrial liquid water in the case of some planetary mass objects.
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7.
Liquid water that becomes water vapor takes a parcel of heat with it, in a process called evaporative cooling.
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8.
Also, a net condensation of water vapor occurs on surfaces when the temperature of the surface is at or below the dew point temperature of the atmosphere.
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9.
Water vapor is a by-product of respiration in plants and animals.
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10.
In very warm air the proportion of water vapor is large enough to give rise to the stuffiness that can be experienced in humid jungle conditions or in poorly ventilated buildings.
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11.
Water vapor has lower density than that of air and is therefore buoyant in air but has lower vapor pressure than that of air.
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12.
Water vapor is an important greenhouse gas owing to the presence of the hydroxyl bond which strongly absorbs in the infra-red.
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13.
Water vapor is the "working medium" of the atmospheric thermodynamic engine which transforms heat energy from sun irradiation into mechanical energy in the form of winds.
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14.
Water vapor thus has a scale height a fraction of that of the bulk atmosphere, as the water condenses and exits, primarily in the troposphere, the lowest layer of the atmosphere.
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15.
Water vapor molecules absorb microwaves and other radio wave frequencies, water in the atmosphere attenuates radar signals.
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16.
Water vapor reflects radar to a lesser extent than do water's other two phases.
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17.
The lowest amounts of water vapor appear in yellow, and the highest amounts appear in dark blue.
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18.
Farther from the equator, water vapor concentrations are high in the hemisphere experiencing summer and low in the one experiencing winter.
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19.
Water vapor plays a key role in lightning production in the atmosphere.
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20.
Water vapor is common in the Solar System and by extension, other planetary systems.
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21.
The presence of water vapor has been detected in the atmospheres of all seven extraterrestrial planets in the solar system, the Earth's Moon, and the moons of other planets, although typically in only trace amounts.
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22.
Plumes of water vapor have been detected on Jupiter's moon Europa and are similar to plumes of water vapor detected on Saturn's moon Enceladus.
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23.
Water vapor has been found to be a major constituent of the atmosphere of dwarf planet, Ceres, largest object in the asteroid belt The detection was made by using the far-infrared abilities of the Herschel Space Observatory.
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