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Topic: Stratopause


In the News (Fri 29 Aug 14)

  
  Stratopause Info - Bored Net - Boredom   (Site not responding. Last check: 2007-10-13)
The stratopause is the level of the atmosphere which is the boundary between the stratosphere and the mesosphere.
In the stratosphere the temperature increases with altitude, and the stratopause is the section where a maximum in the temperature occurs.
On Earth, the stratopause is generally considered to be located at an altitude of 50 km.
www.borednet.com /e/n/encyclopedia/s/st/stratopause.html   (92 words)

  
 Mesosphere   (Site not responding. Last check: 2007-10-13)
The interface between the stratosphere and the mesosphere is called the stratopause, and the interface between the mesosphere and the thermosphere above is called the mesopause.
This is mainly because as the ozone heating falls with height from its maximum near the stratopause, so too does the mesospheric temperature.
The consequent rapid decrease in temperature with altitude is the major defining characteristic of the mesosphere.
library.thinkquest.org /21418/spacee/Mesos.htm   (484 words)

  
 Met Office: The Stratosphere
The troposphere extends from the Earth's surface to the tropopause (about 10-16 km in altitude, depending on latitude), and is generally characterised by temperatures which decrease with height.
The stratosphere extends from the tropopause to the stratopause, at about 50 km, and is characterised by a high static stability associated with an overall increase of temperature with height.
One important feature of the stratosphere is the ozone layer, which protects the Earth by absorbing much of the ultraviolet radiation from the Sun.
www.met-office.gov.uk /research/stratosphere   (285 words)

  
 Stratopause Beschreibung in Library - Definition und Buch-Tipp.
Eine Übersicht der Artikel, die mit dem Thema Stratopause verwandt sind finden Sie auf der Seite alle Artikel über Stratopause.
Die Stratopause ist die atmosphärische Grenzschicht zwischen Stratosphäre und Mesosphäre.
Die Lage der Stratopause wird durch das erste Maximum des atmosphärischen Temperaturprofils gekennzeichnet; sie liegt in etwa 50 km Höhe.
stratopause.know-library.net   (503 words)

  
 Frigid South Pole atmosphere reveals flaw in global circulation models
As reported in the Aug. 28 issue of Geophysical Research Letters, scientists have found that temperatures during mid-winter in the stratopause and mesopause regions at the South Pole are about 40-50 degrees Fahrenheit colder than model predictions.
The work was performed by Chester Gardner, a professor of electrical and computer engineering at the University of Illinois at Urbana-Champaign; Weilin Pan, a doctoral student at Illinois; and Ray Roble, a senior scientist at the High Altitude Observatory of the National Center for Atmospheric Research in Boulder, Colo.
In May, June and July, the stratopause region near 30 miles altitude was considerably colder than model predictions, Gardner said.
www.eurekalert.org /pub_releases/2002-08/uoia-fsp082802.php   (643 words)

  
 Lecture: Vertical Thermal Structure of the Atmosphere, Dr. Rodrigue
The top of the stratosphere is called, yes, you guessed it, the stratopause, another isothermal belt.
Absorption of energy heats the absorbing object, and so it is here: Ozone heats up by absorbing UV radiation, and that accounts for the climb in temperatures with a climb in altitude here in the stratosphere.
D. The mesosphere is the layer above the stratopause.
www.csulb.edu /~rodrigue/geog140/lectures/thermalstructure.html   (1519 words)

  
 Sprites, Blue Jets, and Elves: Optical Evidence of Energy Transport Across the Stratopause   (Site not responding. Last check: 2007-10-13)
American Geophysical Union Chapman Conference entitled "Atmospheric Science Across the Stratopause" and the accompanying monograph.
The proper reference for this paper is Heavner, M.J., D.D. Sentman, D.R. Moudry, E.M. Wescott, C.L Siefring, J.S. Morrill, and E.J. Bucsela, "Sprites, Blue Jets, and Elves: Optical Evidence of Energy Transport Across the Stratopause," AGU Monograph 123 "Atmospheric Science Across the Stratopause," p 69-82, 2000.
Sprites, blue jets, blue starters, and elves are recently documented optical evidence of previously unknown forms of upward electrical energy transport across the stratopause.
nis-www.lanl.gov /~heavner/rs/pap/chapman_mono   (335 words)

  
 The Atmosphere
Ninety-nine percent of "air" is located in the troposphere and stratosphere.
The stratopause separates the stratosphere from the next layer.
The regions of the stratosphere and the mesosphere, along with the stratopause and mesopause, are called the middle atmosphere by scientists.
liftoff.msfc.nasa.gov /academy/space/atmosphere.html   (568 words)

  
 The Earth   (Site not responding. Last check: 2007-10-13)
The lowest region of this layer is usually isothermal, but the temperature then increases with height, maximizing at the top.
The chemicals in the region are in an excited state, as they absorb energy from the Sun.
The regions of the stratosphere and the mesosphere, along with the stratopause and mesopause, are called the Middle Atmosphere.
envis.tropmet.res.in /jan2.htm   (561 words)

  
 HOMEWORK 1 (assigned 1/13/99, due beginning of class 1/20/99)
The stratopause is located at 50 km above the surface.
The stratopause, located at 50 km, is 40 kilometers above this point.
The actual temperature maximum is slightly higher (at the stratopause) because some of the UV radiation gets absorbed by higher ozone molecules before it reaches the lower stratosphere, and because the lower air density in the upper stratosphere and mesosphere means that it doesn't take as much energy absorption to increase temperature.
www.atmos.washington.edu /1999Q1/101/hmwk2notes.html   (2774 words)

  
 ATMOSPHERE   (Site not responding. Last check: 2007-10-13)
This layer is contained between the stratopause and the Mesopause.
Temperatures rise with height (from -60°C at the tropopause, 10°C at the stratopause).
This is due to the absorbsion of UV rays by the ozone layer.
www.il-st-acad-sci.org /kingdom/geo1006.html   (160 words)

  
 JetStream - An Online School for Weather: Layers of the Atmosphere
The temperature rises from an average -76°F (-60°C) at tropopause to a maximum of about 5°F (-15°C) at the stratopause due to this absorption of ultraviolet radiation.
The transition boundary which separates the stratosphere from the mesosphere is called the stratopause.
The mesosphere extends from the stratopause to about 53 miles (85 km) above the earth.
www.srh.noaa.gov /srh/jetstream/atmos/layers.htm   (565 words)

  
 411B: M1, U3, P4: Stratosphere
The interaction between UV light, ozone, and the atmosphere at that level releases heat, warming the atmosphere and helping to create the temperature inversion in this layer.
The stratosphere is bounded above by the stratopause, where the atmosphere again becomes isothermal.
The average height of the stratopause is about 50 km, or 31 miles.
www.shodor.org /os411/courses/411b/module01/unit03/page04.html   (215 words)

  
 test 1 Fall 2000
Near the stratopause the air temperature ranges between –10 to +10ºC, and the oxygen constitutes 21% of the air.
Yet the stratopause is not a livable environment.
(1) the air pressure is too low to breathe; (2) too much UV radiation, because the stratopause is above the ozone layer.
www-das.uwyo.edu /~geerts/atsc2000/archive/00fall/test1.html   (837 words)

  
 Amazon.com: Stratopause: Books   (Site not responding. Last check: 2007-10-13)
top of the stratosphere is another boundary known as the stratopause, which exists at approximately 160,000 feet.
After five minutes, the cloud splashed against the stratopause and began to spread out, its top cresting at twenty-seven...
This layer begins at the stratopause, the altitude at which the stratospheric temperature ceases to increase...
www.amazon.com /s?ie=UTF8&keywords=Stratopause&tag=httpexplaguid-20&index=books&link_code=qs&page=1   (898 words)

  
 Stratosphere and Stratopause | World of Earth Science
These layers are separated by "pauses," where no change in the temperature occurs with altitude change: the tropopause (between the troposphere and the stratosphere), the stratopause (between the stratosphere and the mesosphere), and the mesopause (between the mesosphere and the thermosphere).
The mesosphere is also the layer in which many meteors burn up when they enter the earth's atmosphere, as a result of the collision with some of the gas particles present in this layer.
Atmospheric Composition and Structure; Stratosphere and Stratopause; Thermosphere
www.bookrags.com /research/mesosphere-woes-02/stratosphere-and-stratopause-woes-02.html   (344 words)

  
 MOISTURE
Temperature is constant to about 20 miles then increases to the stratopause.
At the stratopause the temperature is about 40°F. The temperature rise is due to the presence of an ozone layer.
The ozone absorbs incoming UV radiation increasing the heat content of the gas.
geology.csupomona.edu /drjessey/class/Gsc101/Moisture.html   (977 words)

  
 Learn more about Stratopause in the online encyclopedia.   (Site not responding. Last check: 2007-10-13)
Learn more about Stratopause in the online encyclopedia.
Enter a phrase or search word in the box below.
Hint: Play with putting spaces before and after your words to see the different results you get.
www.onlineencyclopedia.org /s/st/stratopause.html   (172 words)

  
 Atmospheric Sciences Across the Stratopause Program
Cardon, INVITED, MAHRSI Observations of the "OH Stratopause" [Abstract]
Gibson-Wilde, Small-scale Dynamics in the Stratopause Region [Abstract]
Frankle, Quasi-two-day Wave Activity Across the Stratopause and Its Association With Gravity Wave Activity in the Mesosphere [Abstract]
www.agu.org /meetings/cc98h_program.html   (1432 words)

  
 Special Briefing For Science Writers On Atmospheric Science Across The Stratopause
In connection with the American Geophysical Union's Chapman Conference, four scientists will brief science writers on recent discoveries and continuing issues regarding Atmospheric Science Across the Stratopause.
The stratopause is the transitional region, around 50 kilometers (30 miles) altitude, between the stratosphere and mesosphere.
There will be no press room or filing facilities at the conference.
www.eurekalert.org /pub_releases/1999-04/AGU-SBFS-080499.php   (710 words)

  
 Australian Antarctic Division - The stratosphere and stratopause
Australian Antarctic Division - The stratosphere and stratopause
Stratospheric temperatures are highest over the summer pole and decrease steadily to a minimum over the winter pole.
The region at the top of the stratosphere, where temperature starts to decrease with altitude, is called the stratopause.
www.aad.gov.au /default.asp?casid=11431   (163 words)

  
 2000: Atmospheric Science across the Stratopause, 227-239   (Site not responding. Last check: 2007-10-13)
Hamilton, Kevin, 2000: Free and forced interannual variability of the circulation in the extratropical Northern Hemisphere middle atmosphere, In Atmospheric Science across the Stratopause, Geophysical Monograph 123, Washington, DC: American Geophysical Union, 227-239.
Abstract: This paper is an informal review of research relating to the interannual variability of the stratospheric and mesospheric circulation in the northern extratropics.
Then studies relating to externally forced variability are reviewed, including those that deal with the effects of volcanic aerosols and solar irradiance.
www.gfdl.noaa.gov /~gth/netscape/2000/kph0002.html   (107 words)

  
 Replies   (Site not responding. Last check: 2007-10-13)
scientists have found that temperatures during mid-winter in the stratopause and mesopause regions at the South Pole are about 40-50 degrees Fahrenheit colder than model predictions
In May, June and July the stratopause was considerably colder than model predictions.
The greatest difference occurred in July, when the measured stratopause temperature was about minus 17 degrees C (0 degrees F) to about 4 degrees C (40 degrees F) predicted by the models.
www.freerepublic.com /focus/news/741494/replies?comment=1   (2271 words)

  
 ECMWF
However, in this first scheme for use at ECMWF we prescribe a simple analytical form for
The photochemical life time of water vapour is of the order of 100 days near the stratopause, 2000 days at 10 hPa, and effectively infinite at the tropopause (Brasseur and Solomon 1984).
that gives a reasonable profile up to the stratopause is provided by
www.ecmwf.int /research/ifsdocs/CY28r1/Physics/Physics-09-4.html   (391 words)

  
 Home page for Joe Werne   (Site not responding. Last check: 2007-10-13)
Werne & Fritts, 2000: "Anisotropy in a stratified shear layer", Physics and Chemistry of the Earth, Vol 26, p 263
Fritts & Werne, 2000: "Turbulence Dynamics and Mixing due to Gravity Waves in the Lower and Middle Atmosphere" in Atmospheric Science across the Stratopause, Geophysical Monograph 123, American Geophys.
Gibson-Wilde, Werne, Fritts & Hill 2000: "Direct numerical simulation of VHF radar measurements of turbulence in the mesosphere", Radio Science, Vol 35, p 783.
www.joewerne.com   (295 words)

  
 AGU On Line Book Catalog: Atmospheric Science Across the Stratopause
With global change issues so critically upon us, geophysicists have begun to study the atmosphere as a complete system.
Atmospheric Science Across the Stratopause provides atmospheric and space scientists with an integrated perspective on the troposphere, stratosphere, mesosphere, and thermosphere.
Your membership status will be verified after your order is received.
www.agu.org /cgi-bin/agubookstore?book=ASGM1239817   (238 words)

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