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(Article of periodic en Anglais - 2010)

Document title

Idealized SST anomaly regional climate model experiments : a note of caution

Authors(s) and Affiliation(s)

WILLIAMS C.J.R. (1) ; KNIVETON D.R. (1) ; LAYBERRY R. (1) ;
(1) NCAS-Climate, Univ., Reading, ROYAUME-UNI

  • Univ., Sussex, ROYAUME-UNI
  • Univ., Oxford, ROYAUME-UNI

Abstract

The AA. present results from idealized regional climate model (RCM) experiments forced with both positive and negative SST anomalies in the southern Atlantic Ocean. They reveal an unexpected response of rainfall over southern Africa. In particular, it was found that SST anomalies of opposite sign can cause similar rainfall responses in the model experiments, with isolated increases in rainfall over central southern Africa as well as a large region of drying over the Mozambique Channel. The aim of this paper is to highlight this finding. It is suggested that the observed changes in rainfall might result from the redistribution of energy (associated with upper-level changes to Rossby waves) or, of more concern, model error, and therefore the paper concludes that the results of idealized regional climate models forced with SST anomalies should be viewed cautiously

Source

Article of periodic

published at : Progress in physical geography / ISSN 0309-1333 / CODEN PPGEEC

Editor : Sage Publications, London - ROYAUME-UNI (1977)

Millesime : 2010, vol. 34, no1 [pp. 59-74]

Bibliographic references : 2 p.

Collation : 8 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 14648 A

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1177/0309133309356738

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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