is the gaseous mass or envelope of air surrounding the Earth From ground-level up, the atmosphere is further subdivided into the troposphere, stratosphere, mesosphere, and the thermosphere
The gaseous fluid surrounding a planet The earth's atmosphere consists primarily of oxygen and nitrogen; however it is the water vapor content that is responsible for most of the weather
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"
The atmosphere of a place is the general impression that you get of it. There's still an atmosphere of great hostility and tension in the city
The layer of gas surrounding the earth or other planets The upper atmosphere is the region of Earth's atmosphere above the troposphere (which extends to about 20 km) Regions of the upper atmosphere are the stratosphere, mesosphere and thermosphere
The whole mass of air, or mixture of gases, surrounding the earth (Clark, 1985; Millar, 1994) Includes layers such as the troposhere (0 to ~6-18km from earth), stratosphere (~6-18km to ~50km from earth), mesosphere (~50km to ~80km from earth), and thermosphere (~80km+ from earth) Each layer is divided from the next by a region refered to as a pause, eg the tropopause divides the troposphere from the stratosphere See figure of the layers of the atmosphere below
The portion of air in any locality, or affected by a special physical or sanitary condition; as, the atmosphere of the room; a moist or noxious atmosphere
A supposed medium around various bodies; as, electrical atmosphere, a medium formerly supposed to surround electrical bodies
If a place or an event has atmosphere, it is interesting. The old harbour is still full of atmosphere and well worth visiting. = ambience. Gaseous envelope that surrounds the Earth. Near the surface it has a well-defined chemical composition (see air). In addition to gases, the atmosphere contains solid and liquid particles in suspension. Scientists divide the atmosphere into five main layers: in ascending order, the troposphere (surface to 6-8 mi, or 10-13 km); the stratosphere (4-11 mi, or 6-17 km, to about 30 mi, or 50 km); the mesosphere (31-50 mi, or 50-80 km); the thermosphere (50-300 mi, or 80-480 km); and the exosphere (from 300 mi and gradually dissipating). Most of the atmosphere consists of neutral atoms and molecules, but in the ionosphere a significant fraction is electrically charged. The ionosphere begins near the top of the stratosphere but is most distinct in the thermosphere. See also ozone layer
a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade
One atmosphere is 14 7 pounds per square inch (105 Newtons per square meter); the average atmospheric pressure at sea level on Earth
The envelope of gases surrounding the Earth and bound to it by the Earth's gravitational attraction