Idealized modelling of the northern annular mode: orographic and thermal impacts

Sempf, Mario, Dethloff, Klaus, Handorf, Dörthe and Kurgansky, Michael V ;

Contact

msempf [ at ] awi-potsdam.de

Abstract

In an idealized model of northern hemisphere's wintertime atmospheric circulation, it is shown that the Northern Annular Mode arises from an annular pattern on a rotating aqua-planet and is modified to a zonally asymmetric pattern by land-sea contrasts and orography, connected with the localization of transient baroclinic activity. Copyright © 2005 Royal Meteorological Society.

Item Type

Article

Authors

Sempf, Mario, Dethloff, Klaus, Handorf, Dörthe and Kurgansky, Michael V ;

Divisions

AWI Organizations > Climate Sciences > Atmospheric Physics

Programs

Helmholtz Research Programs > MARCOPOLI (2004-2008) > MAR-MARCOPOLI
Helmholtz Research Programs > MARCOPOLI (2004-2008) > MAR1-Decadal Variability and Global Change

Publication Status

Published

Eprint ID

12983

DOI https://www.doi.org/10.1002/asl.106

Cite as

Sempf, M. , Dethloff, K. , Handorf, D. and Kurgansky, M. V. (2005): Idealized modelling of the northern annular mode: orographic and thermal impacts , Atmospheric Science Letters, 6 (2), pp. 140-144 . doi: https://www.doi.org/10.1002/asl.106

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