Effects of the baroclinic adjustment on the tropopause in the NCEP-NCAR reanalysis

Alessandro Dell'Aquila, Paolo M. Ruti, Alfonso Sutera

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11 Citations (Scopus)

Abstract

In this work, we study the mean tropopause structure from the National Center for Environmental Prediction-National Center for Atmospheric Research reanalysis in the framework of baroclinic adjustment theories, focusing on the impact of baroclinic eddies on the mean tropopause height. In order to measure the effects of such perturbations, we introduce an appropriate global index that selects events of high baroclinic activity and allows us to distinguish the phases of growth and decay of baroclinic waves. We then composite the tropopause mean structure before and after baroclinic events, finding that baroclinic disturbances cause the zonally averaged midlatitude winter tropopause height to rise. Our results establish the importance of baroclinic adjustment processes for midlatitude tropopause dynamics. © Springer-Verlag 2006.
Original languageEnglish
Pages (from-to)325 - 332
Number of pages8
JournalClimate Dynamics
Volume28
Issue number2-3
DOIs
Publication statusPublished - Feb 2007
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Atmospheric Science

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