Water vapor

Water Vapor: It's a Gas!
Water can take the form of an invisible gas called water vapor. Water vapor is naturally present in the atmosphere and has a strong effect on weather and climate.

Water Vapor: The most abundant greenhouse gas, it is the water present in the atmosphere in gaseous form. Water vapor is an important part of the natural greenhouse effect.

Water vapor effects
Water vapor is the major contributor to Earth's greenhouse effect.

Water Vapor - Water present in the atmosphere in gaseous form; the source of all forms of condensation and precipitation.

Water Vapor - Water substance in vapor (gaseous) form; one of the most important of all constituents of the atmosphere.
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water vapor : Water diffused as a gas in the atmosphere.
watershed : The land area that drains into a stream.

which water vapor is released to the atmosphere by living
plants.
treated wastewater. Wastewater that has been subjected to ...

The process of water vapor (gas) changing into liquid water. An example of condensation can be seen in the tiny water droplets that form on the outside of a glass of iced tea as warmer air touches the cooler glass.
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Rain Rain or any form of precipitation of dilute solutions of strong mineral acids, created by the mixing in the atmosphere of pollutants, typically sulfur dioxide and nitrogen oxides compounds, with naturally occurring oxygen and water vapor.

general circulation models Hydrodynamic models of the atmosphere on a grid or spectral resolution that determine the surface pressure and the vertical distributions of velocity, temperature, density, and water vapor as functions of time from the ...

The most abundant greenhouse gases are water vapor and carbon dioxide. Others include methane, nitrous oxide, and chlorofluorocarbons. Ground blizzard:the drifting and blowing of snow that occurs after a snowfall has ended.

Relative humidity Very roughly, the dampness of the air; more correctly, the percentage saturation of the air with water vapor; better still, ...

Fuel Cell - An electrochemical device in which hydrogen is combined with oxygen to produce electricity with heat and water vapor as by products. Natural gas is often used as the source of hydrogen with air as the source of oxygen.

satellite pictures Pictures taken by a weather satellite, such as GOES-9, that reveal information, such as the flow of water vapor, the movement of frontal systems, and the development of a tropical system.

Ask students if they notice water vapor escaping from the container? Did they detect a change in the shape of the water surface? Depending on the air temperature, evaporation rates change. Surface tension is also reduced as water is heated.

Converging winds near the surface of the water collide, pushing more water vapor upward, increasing the circulation of warm air, and accelerating the speed of the wind.

Condensate: Water obtained by condensation of water vapor.
Condensation: The process by which a vapor becomes a liquid or solid; the opposite of evaporation.

greenhouse gases: Greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, and ozone.
groundwater: Groundwater is the water that flows underground filling soil and flowing out into springs and aquifers.

Evaporation The conversion of liquid water to water vapor. It occurs on the surface of water bodies such as lakes and rivers and immediately after precipitation events in small depressions and other storage areas.
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Transpiration: The process by which water vapor is lost to the atmosphere from living plants. The term can also be applied to the quantity of water thus dissipated.

Greenhouse gases include water vapor, carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), halogenated fluorocarbons (HCFCs) , ozone (O3), perfluorinated carbons (PFCs), and hydrofluorocarbons (HFCs).

The process by which water vapor is lost to the atmosphere from living plants. The term can also be applied to the quantity of water thus dissipated.
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Transpiration. The process in which plant tissues give off water vapor to the atmosphere as an essential physiological process.
Turbidity. Thick or opaque with matter in suspension; muddy water.
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water vapor the gaseous state of water.
watershed the area drained by a river system.

Relative Humidity: The amount of water vapor that exists in air compared to the maximum possible water vapor in air for the same temperature and pressure.

Transpiration:  The process by which water vapor escapes from the living plant, principally the leaves, and enters the atmosphere.

Greenhouse Gas - Any gas that absorbs infra-red radiation in the atmosphere. Greenhouse gases include water vapor, carbon dioxide (CO2) and methane (CH4), and reduction of their emissions also reduces a carbon footprint.

Gaseous constituents of the atmosphere, both natural and from human activity, that absorb and re-emit infrared radiation. Water vapor (H2O) is the most abundant greenhouse gas. Greenhouse gases are a natural part of the atmosphere
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Evapotranspiration: Collective term for evaporation and plant transpiration, which return water vapor from the earthÕs surface to the atmosphere.

Any particulate matter, gas, or combination thereof, other than water vapor. (See: Air Pollutant.)
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Greenhouse Effect - The warming of earth's surface and lower atmosphere as a result of carbon dioxide and water vapor in the atmosphere, which absorb and reradiate infrared radiation.

Greenhouse Gases: Atmospheric gases such as carbon dioxide, methane, chlorofluorocarbons, nitrous oxide, ozone, and water vapor that slow the passage of re-radiated heat through the Earth's atmosphere. ( See also ClimateChange.ca.gov Glossary.) ...

evaporation. The process by which water or other liquid becomes a gas (water vapor or ammonia vapor). Water from land areas, bodies of water, and all other moist surfaces is absorbed into the atmosphere as a vapor.

1.Liquid formed when warm landfill gas cools as it travels through a collection system. 2. Water created by cooling steam or water vapor.
Source: Terms of the Environment
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Air Contaminant: Any particulate matter, gas, or combination thereof, other than water vapor. (see Air Pollutant) ...

Landfill gas also contains varying amounts of nitrogen, oxygen, water vapor, sulfur and a hundreds of other contaminants - most of which are known as "non-methane organic compounds" or NMOCs.

Flue Gas: The air coming out of a chimney after combustion in the burner it is venting. It can include nitrogen oxides, carbon oxides, water vapor, sulfur oxides, particles and many chemical pollutants.

the temperature at which the condensation of a vapor begins; the term is usually applied to condensation of moisture from the water vapor in the atmosphere.
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* Hydrosphere
The totality of water encompassing the Earth, comprising all the bodies of water, ice and water vapor in the atmosphere.
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These gases may include vapor of hazardous chemicals as well as air and water vapor. A soil-gas survey involves collecting and analyzing soil-gas samples to determine the presence of chemicals and to help map the spread of contaminants within soil.

Total pressure may also be derived from the measurement of the partial pressure of the water vapor in equilibrium with the soil water.

These gases occur naturally, but large amounts emitted by human activities are adding to the climate crisis. Greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, halogenated fluorocarbons, ozone, ...

Condensate- 1.Liquid formed when warm landfill gas cools as it travels through a collection system. 2. Water created by cooling steam or water vapor.

Fuel Cell: an electrochemical device that combines hydrogen and oxygen to produce electricity, with water and heat as its by-product. When used to power vehicles, the heat propels the vehicle; the water is released in the form of water vapor.

Air - so-called "pure" air is a mixture of gases containing about 78 percent nitrogen; 21 percent oxygen; less than 1 percent of carbon dioxide, argon, and other inert gases; and varying amounts of water vapor ...

The process by which surface water, soils, and plants release water vapor to the atmosphere through evaporation and transpiration.
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acid rain - the precipitation of dilute solutions of strong mineral acids, formed by the mixing in the atmosphere of various industrial pollutants -- primarily sulfur dioxide and nitrogen oxides -- with naturally occurring oxygen and water vapor.

See also: Vapor, Water, Environment, Air, Atmosphere