sharon sanders
Editor-in-Chief & President
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Dr Arnaud Czaja: "Our model suggests that there is a second cell of air in each hemisphere which is characterised by air rising, clouds forming, storms developing and other processes associated with moisture in the air occurring in the mid-latitudes."
Science 22 August 2008:
Vol. 321. no. 5892, pp. 1075 - 1078
DOI: 10.1126/science.1159649
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</td> </tr> </tbody></table> Reports
<!-- BEGIN: legacy HTML content --> <!--RESUMEHIGHLIGHT--> The Global Atmospheric Circulation on Moist Isentropes
<nobr>Olivier Pauluis,<sup>1</sup><sup>*</sup></nobr> <nobr>Arnaud Czaja,<sup>2</sup></nobr> <nobr>Robert Korty<sup>3</sup></nobr> The global atmospheric circulation transports energy from the<sup> </sup>equatorial regions to higher latitudes through a poleward flow<sup> </sup>of high-energy and -entropy parcels and an equatorward flow<sup> </sup>of air with lower energy and entropy content. Because of its<sup> </sup>turbulent nature, this circulation can only be described in<sup> </sup>some averaged sense. Here, we show that the total mass transport<sup> </sup>by the circulation is twice as large when averaged on moist<sup> </sup>isentropes than when averaged on dry isentropes. The additional<sup> </sup>mass transport on moist isentropes corresponds to a poleward<sup> </sup>flow of warm moist air near Earth's surface that rises into<sup> </sup>the upper troposphere within mid-latitudes and accounts for<sup> </sup>up to half of the air in the upper troposphere in polar regions.<sup> </sup>
[SIZE=-1] <sup>1</sup> Courant Institute of Mathematical Sciences, New York University, 251 Mercer Street, New York, NY 10012, USA.
<sup>2</sup> Space and Atmospheric Physics Group, Department of Physics, Imperial College, Huxley Building, Room 726, London SW7 2AZ, UK.
<sup>3</sup> Department of Atmospheric Sciences, Texas A&M University, 3150 TAMU, College Station, TX 77843?3150, USA
http://www.sciencemag.org/cgi/content/abstract/321/5892/1075
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Dr Arnaud Czaja: "Our model suggests that there is a second cell of air in each hemisphere which is characterised by air rising, clouds forming, storms developing and other processes associated with moisture in the air occurring in the mid-latitudes."
Science 22 August 2008:
Vol. 321. no. 5892, pp. 1075 - 1078
DOI: 10.1126/science.1159649
</td> <td align="right"> t
</td> </tr> </tbody></table> Reports
<!-- BEGIN: legacy HTML content --> <!--RESUMEHIGHLIGHT--> The Global Atmospheric Circulation on Moist Isentropes
<nobr>Olivier Pauluis,<sup>1</sup><sup>*</sup></nobr> <nobr>Arnaud Czaja,<sup>2</sup></nobr> <nobr>Robert Korty<sup>3</sup></nobr> The global atmospheric circulation transports energy from the<sup> </sup>equatorial regions to higher latitudes through a poleward flow<sup> </sup>of high-energy and -entropy parcels and an equatorward flow<sup> </sup>of air with lower energy and entropy content. Because of its<sup> </sup>turbulent nature, this circulation can only be described in<sup> </sup>some averaged sense. Here, we show that the total mass transport<sup> </sup>by the circulation is twice as large when averaged on moist<sup> </sup>isentropes than when averaged on dry isentropes. The additional<sup> </sup>mass transport on moist isentropes corresponds to a poleward<sup> </sup>flow of warm moist air near Earth's surface that rises into<sup> </sup>the upper troposphere within mid-latitudes and accounts for<sup> </sup>up to half of the air in the upper troposphere in polar regions.<sup> </sup>
[SIZE=-1] <sup>1</sup> Courant Institute of Mathematical Sciences, New York University, 251 Mercer Street, New York, NY 10012, USA.
<sup>2</sup> Space and Atmospheric Physics Group, Department of Physics, Imperial College, Huxley Building, Room 726, London SW7 2AZ, UK.
<sup>3</sup> Department of Atmospheric Sciences, Texas A&M University, 3150 TAMU, College Station, TX 77843?3150, USA
http://www.sciencemag.org/cgi/content/abstract/321/5892/1075
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