The troposphere is the layer closest to Earth's surface. It is 4 to 12 miles (7 to 20 km) thick and contains half of Earth's atmosphere. Air is warmer near the ground and gets colder higher up. Composition of Atmosphere – Gases in the Atmosphere. The atmospheric composition of gas on Earth is largely conducted by the by-products of the life that it nurse. Dry air from earth’s atmosphere contains 0.038% of carbon dioxide, 20.95% of oxygen, 78.08% of nitrogen and 0.93% of argon.

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at·mos·phere

(ăt′mə-sfîr′)n.

atmosphere

(ˈætməsˌfɪə) n

at•mos•phere

(ˈæt məsˌfɪər)
n. atmosphere

at·mos·phere

(ăt′mə-sfîr′)

atmosphere

- Derives from Greek atmos, 'vapor,' and sphaira, 'globe,' and is literally 'ball of vapor.'

Atmosphere

Atmosphere

See Also:AIR

1. Air … full of unspoken words, unformulated guilts, a vicious silence, like the moments before a bridge collapses —John Fowles
2. The atmosphere (of the room) was as vapid as a zephyr wandering over a Vesuvian lava-bed —O. Henry
3. Evil which hung in … air like an odorless gas —Ross Macdonald
4. (The circle in which I moved was a self-contained world …) it was like being in the treacly, supersaturated air of a hothouse filled with luxuriant vegetation, or in an aquarium with its own special heating unit and food supply, its own species of plankton —Natascha Wodin
5. (The whole place seemed restless and troubled and) people were crowding and flitting to and fro, like shadows in an uneasy dream —Charles Dickens
6. Sensed a wrongness around me, like an alarm clock that had gone off without being set —Maya Angelou
7. They [women who run shops in a town] have given the Square a fussy, homespun air that reminds you of life pictured in catalogs —Richard Ford
8. Thick and sultry the atmosphere steams like an island in the Pacific —T. Coraghessan Boyle

atmosphere

Noun	1.	atmosphere - a particular environment or surrounding influence; 'there was an atmosphere of excitement' ambiance, ambience condition, status - a state at a particular time; 'a condition (or state) of disrepair'; 'the current status of the arms negotiations' gloominess, glumness, gloom - an atmosphere of depression and melancholy; 'gloom pervaded the office' miasm, miasma - an unwholesome atmosphere; 'the novel spun a miasma of death and decay' flavor, flavour, feel, spirit, smell, feeling, look, tone - the general atmosphere of a place or situation and the effect that it has on people; 'the feel of the city excited him'; 'a clergyman improved the tone of the meeting'; 'it had the smell of treason'
2.	atmosphere - a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade pressure unit - a unit measuring force per unit area
3.	atmosphere - the mass of air surrounding the Earth; 'there was great heat as the comet entered the atmosphere'; 'it was exposed to the air' airspace - the atmosphere above a nation that is deemed to be under its jurisdiction; 'the plane was refused permission to enter Chinese airspace' air space, airspace - the space in the atmosphere immediately above the earth ionosphere - the outer region of the Earth's atmosphere; contains a high concentration of free electrons region, part - the extended spatial location of something; 'the farming regions of France'; 'religions in all parts of the world'; 'regions of outer space' earth, globe, world - the 3rd planet from the sun; the planet we live on; 'the Earth moves around the sun'; 'he sailed around the world'
4.	atmosphere - the weather or climate at some place; 'the atmosphere was thick with fog' atmospheric condition, weather, weather condition, conditions - the atmospheric conditions that comprise the state of the atmosphere in terms of temperature and wind and clouds and precipitation; 'they were hoping for good weather'; 'every day we have weather conditions and yesterday was no exception'; 'the conditions were too rainy for playing in the snow' air mass - a large body of air with uniform characteristics horizontally anticyclone - (meteorology) winds spiraling outward from a high pressure center; circling clockwise in the northern hemisphere and counterclockwise in the southern cyclone - (meteorology) rapid inward circulation of air masses about a low pressure center; circling counterclockwise in the northern hemisphere and clockwise in the southern fogginess, murk, murkiness, fog - an atmosphere in which visibility is reduced because of a cloud of some substance
5.	atmosphere - the envelope of gases surrounding any celestial body mesosphere - the atmospheric layer between the stratosphere and the thermosphere sky - the atmosphere and outer space as viewed from the earth stratosphere - the atmospheric layer between the troposphere and the mesosphere thermosphere - the atmospheric layer between the mesosphere and the exosphere troposphere - the lowest atmospheric layer; from 4 to 11 miles high (depending on latitude) gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
6.	atmosphere - a distinctive but intangible quality surrounding a person or thing; 'an air of mystery'; 'the house had a neglected air'; 'an atmosphere of defeat pervaded the candidate's headquarters'; 'the place had an aura of romance' quality - an essential and distinguishing attribute of something or someone; 'the quality of mercy is not strained'--Shakespeare mystique - an aura of heightened value or interest or meaning surrounding a person or thing note - a characteristic emotional quality; 'it ended on a sour note'; 'there was a note of gaiety in her manner'; 'he detected a note of sarcasm' vibe, vibration - a distinctive emotional aura experienced instinctively; 'that place gave me bad vibrations'; 'it gave me a nostalgic vibe'

atmosphere

noun

atmosphere

noun2. A general impression produced by a predominant quality or characteristic:3. The totality of surrounding conditions and circumstances affecting growth or development:

atmosphere

[ˈætməsfɪəʳ]N

atmosphere

[ˈætməsfɪə^r]n

atmosphere

atmosphere

[ˈætməsˌfɪəʳ]n (Geog) (fig) → atmosfera; (air) → aria

atmosphere

(ˈӕtməsfiə) nounˌatmosˈpheric (-ˈfe-) adjective

atmosphere

→ الـجَوّ atmosféra atmosfæreAtmosphäreατμόσφαιραatmósfera ilmakehäatmosphère atmosferaatmosfera 大気 대기atmosfeeratmosfæreatmosferaatmosferaатмосфера atmosfär (n) บรรยากาศatmosfer khí quyển大气

at·mos·phere

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• Surface budgets
  • Energy budget
• Vertical structure of the atmosphere
  • Troposphere
• Horizontal structure of the atmosphere
• Cloud processes
  • Precipitation

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Atmosphere Meaning

Britannica's Publishing Partner Program and our community of experts to gain a global audience for your work! Roger A. Pielke

Atmosphere, the gas and aerosol envelope that extends from the ocean, land, and ice-covered surface of a planet outward into space. The density of the atmosphere decreases outward, because the gravitational attraction of the planet, which pulls the gases and aerosols (microscopic suspended particles of dust, soot, smoke, or chemicals) inward, is greatest close to the surface. Atmospheres of some planetary bodies, such as Mercury, are almost nonexistent, as the primordial atmosphere has escaped the relatively low gravitational attraction of the planet and has been released into space. Other planets, such as Venus, Earth, Mars, and the giant outer planets of the solar system, have retained an atmosphere. In addition, Earth’s atmosphere has been able to contain water in each of its three phases (solid, liquid, and gas), which has been essential for the development of life on the planet.

The evolution of Earth’s current atmosphere is not completely understood. It is thought that the current atmosphere resulted from a gradual release of gases both from the planet’s interior and from the metabolic activities of life-forms—as opposed to the primordial atmosphere, which developed by outgassing (venting) during the original formation of the planet. Current volcanic gaseous emissions include water vapour (H₂O), carbon dioxide (CO₂), sulfur dioxide (SO₂), hydrogen sulfide (H₂S), carbon monoxide (CO), chlorine (Cl), fluorine (F), and diatomic nitrogen (N₂; consisting of two atoms in a single molecule), as well as traces of other substances. Approximately 85 percent of volcanic emissions are in the form of water vapour. In contrast, carbon dioxide is about 10 percent of the effluent.

During the early evolution of the atmosphere on Earth, water must have been able to exist as a liquid, since the oceans have been present for at least three billion years. Given that solar output four billion years ago was only about 60 percent of what it is today, enhanced levels of carbon dioxide and perhaps ammonia (NH₃) must have been present in order to retard the loss of infrared radiation into space. The initial life-forms that evolved in this environment must have been anaerobic (i.e., surviving in the absence of oxygen). In addition, they must have been able to resist the biologically destructive ultraviolet radiation in sunlight, which was not absorbed by a layer of ozone as it is now.

Once organisms developed the capability for photosynthesis, oxygen was produced in large quantities. The buildup of oxygen in the atmosphere also permitted the development of the ozone layer as O₂ molecules were dissociated into monatomic oxygen (O; consisting of single oxygen atoms) and recombined with other O₂ molecules to form triatomic ozone molecules (O₃). The capability for photosynthesis arose in primitive forms of plants between two and three billion years ago. Previous to the evolution of photosynthetic organisms, oxygen was produced in limited quantities as a by-product of the decomposition of water vapour by ultraviolet radiation.

The current molecular composition of Earth’s atmosphere is diatomic nitrogen (N₂), 78.08 percent; diatomic oxygen (O₂), 20.95 percent; argon (A), 0.93 percent; water (H₂0), about 0 to 4 percent; and carbon dioxide (CO₂), 0.04 percent. Inert gases such as neon (Ne), helium (He), and krypton (Kr) and other constituents such as nitrogen oxides, compounds of sulfur, and compounds of ozone are found in lesser amounts.

This article provides an overview of the physical forces that drive Earth’s atmospheric processes, the structure of the Earth’s atmosphere, and the instrumentation used to measure the Earth’s atmosphere. For a full description of the processes that created the current atmosphere on Earth, seeevolution of the atmosphere. For information on the long-term conditions of the atmosphere as they are experienced at the surface of Earth, seeclimate. For a description of the highest regions of the atmosphere, where conditions are set largely by the presence of charged particles, seeionosphere and magnetosphere.

Surface budgets

Atmosphere & Pad Vst Free Download

Energy budget

Vst plugin daw p explosives sound reduce. Earth’s atmosphere is bounded at the bottom by water and land—that is, by the surface of Earth. Heating of this surface is accomplished by three physical processes—radiation, conduction, and convection—and the temperature at the interface of the atmosphere and surface is a result of this heating.

The relative contributions of each process depend on the wind, temperature, and moisture structure in the atmosphere immediately above the surface, the intensity of solar insolation, and the physical characteristics of the surface. The temperature occurring at this interface is of critical importance in determining how suitable a location is for different forms of life.

Atmosphere Layers