Title of article :
On the mid-latitude tropopause height and the orographic-baroclinic adjustment theory
Author/Authors :
Isabella Bordi and Alfonso Sutera ، نويسنده , , ALESS، نويسنده , , RO DELLʹAQUILA، نويسنده , , ANTONIO SPERANZA ، نويسنده , , ALFONSO SUTERA، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
9
From page :
278
To page :
286
Abstract :
n the extratropics the analysis of the time–space structure of the dynamical tropopause shows a marked signature of non-propagating, low-frequency (time-scale >10 d), ultra-long (zonal wavenumber <5) waves. This suggests the extension of theories relating the tropopause height to the baroclinic adjustment to the orographic-baroclinic disturbances, generally operating in the low-frequency domain. Such an extension is here proposed. By analysing Eady modes in a Boussinesq atmosphere, it has been found that the form-drag instability must be accounted for in an extended theory of baroclinic neutralization. The produced unstable standing waves carry a poleward large amount of heat at planetary scale for most of the external parameter settings and their spatial structure strongly resembles the observed winter mid-latitude eddy fields.
Journal title :
Tellus. Series A
Serial Year :
2004
Journal title :
Tellus. Series A
Record number :
436489
Link To Document :
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