troposphere


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tro·po·sphere

 (trō′pə-sfîr′, trŏp′ə-)
n.
The lowest region of the atmosphere between the earth's surface and the tropopause, characterized by decreasing temperature with increasing altitude.

tro′po·spher′ic (-sfîr′ĭk, -sfĕr′-) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

troposphere

(ˈtrɒpəˌsfɪə)
n
(Physical Geography) the lowest atmospheric layer, about 18 kilometres (11 miles) thick at the equator to about 6 km (4 miles) at the Poles, in which air temperature decreases normally with height at about 6.5°C per km
tropospheric adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

trop•o•sphere

(ˈtrɒp əˌsfɪər, ˈtroʊ pə-)

n.
the lowest layer of the atmosphere, varying in height from 6 to 12 mi. (10 to 20 km), within which nearly all clouds and weather conditions occur.
[1905–10]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

tro·po·sphere

(trō′pə-sfîr′, trŏp′ə-sfîr′)
The lowest region of the atmosphere, bounded by the Earth's surface and the tropopause and characterized by temperatures that decrease with increasing altitude. Weather and most cloud formations occur in the troposphere.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

troposphere

The lower layers of atmosphere, in which the change of temperature with height is relatively large. It is the region where clouds form, convection is active, and mixing is continuous and more or less complete. See also atmosphere.
Dictionary of Military and Associated Terms. US Department of Defense 2005.

troposphere

the region of the earth’s atmosphere between the surface of the earth and the stratosphere.
See also: Atmosphere
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.

troposphere

The layer of the atmosphere lying nearest the Earth which varies in thickness from 11 mi (18km) at the equator to 6.2 mi (10km) at the poles.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.troposphere - the lowest atmospheric layertroposphere - the lowest atmospheric layer; from 4 to 11 miles high (depending on latitude)
layer - a relatively thin sheetlike expanse or region lying over or under another
atmosphere - the envelope of gases surrounding any celestial body
tropopause - the region of discontinuity between the troposphere and the stratosphere
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

troposphere

[ˈtrɒpəsfɪəʳ] Ntroposfera f
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

troposphere

n (Met) → Troposphäre f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in periodicals archive ?
Planes flying above the cloud level in the upper troposphere not only release carbon dioxide but also another potent greenhouse gas, water vapour.
The team from Montana State University (MSU) and the National Center for Atmospheric Research (NCAR) in Boulder, Colorado, has created five diode-based micro-pulse differential absorption lidar (DIAL) instruments--MPD instruments, for short--for profiling water vapour in the lower troposphere, the region of the atmosphere where most weather occurs.
They found that two of the samples (PMO-1 and PMO-3) originated from a wildfire in Quebec and traveled to Pico in the free troposphere, while the third (PMO-2) came from low-level flow off North America and was transported in the marine boundary layer.
Lelieveld at Planck Institute for Chemistry in Mainz and co-workers say they have now for the first time performed chemistry measurements by sampling the summer monsoon outflow in the upper troposphere (between 9 and 15 km altitude).
<br />TPVs occur in the upper troposphere of the Arctic, but the data doesn't exist from this barren region to improve prediction.
Bacteria and viruses get swept into the atmosphere from both land and water surfaces around the world, and are carried to the free troposphere. The troposphere is the layer of atmosphere that starts from the surface and extends to about 18 kilometers up.
In a stratosphere, temperature increases with altitude--unlike the troposphere below it, where the temperature drops the higher you go.
The medium of propagation for both analogue and digital terrestrial television is the troposphere, where most weather phenomena occur [1].
In other words, for every million molecules in the troposphere, a paltry four hundred are C[O.sub.2].
Above the middle troposphere, including the upper troposphere and the lower stratosphere (UTLS) at 5~20 km, the water vapor mixing ratio (WVMR) is 2~4 times lower than in the lower troposphere.