Intensification of the Southern Hemisphere summertime subtropical anticyclones in a warming climate

Wenhong Li, Laifang Li, Mingfang Ting, Yi Deng, Yochanan Kushnir, Yimin Liu, Yi Lu, Chunzai Wang, Pengfei Zhang

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

The Southern Hemisphere subtropical anticyclones (SAs) are important features of the Earth's climate. A broad consensus among Coupled Model Intercomparison Project phase 3 and phase 5 climate models suggests an intensification of summer SAs over SH oceans in association with the increase in greenhouse gas concentrations in the atmosphere. Diagnostic and modeling analyses conducted here demonstrate that the strengthening of the SAs is primarily caused by enhanced diabatic heating over continents and cooling over oceans in austral summer. This enhancement of Southern Hemisphere near-surface SAs identified here together with the enhancement of their Northern Hemisphere counterparts as suggested by Li et al. (2012) indicates increasingly important roles played by SAs in modulating weather and climate on regional and global scales.

Original languageEnglish (US)
Pages (from-to)5959-5964
Number of pages6
JournalGeophysical Research Letters
Volume40
Issue number22
DOIs
StatePublished - Nov 28 2013

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

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