Articles | Volume 11, issue 6
https://doi.org/10.5194/os-11-873-2015
https://doi.org/10.5194/os-11-873-2015
Research article
 | 
09 Nov 2015
Research article |  | 09 Nov 2015

Responses of atmospheric circulation to sea surface temperature anomalies in the South China Sea

M. P. Zhou and G. H. Wang

Abstract. The sea surface temperature (SST) anomalies in the South China Sea (SCS) and their influences on global atmospheric circulation were studied. The results of a simple atmospheric model suggested that the SCS SST anomalies can induce several barotropic wave trains from the SCS to other regions such as North America, high latitudes of the Southern Hemisphere and the Mediterranean. The baroclinic stream function anomalies from the simple model showed an anticyclonic vortex pair in the Asian continent and the northern and southern Indian Ocean and a cyclonic vortex in the North Pacific and the southwestern Pacific. It is suggested that the spatial pattern of SST anomalies in the SCS can affect the magnitude of stream function anomalies, although it cannot affect the spatial pattern of atmospheric circulation.

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Short summary
The sea surface temperature (SST) anomalies in the South China Sea (SCS) and their influences on global atmospheric circulation were studied. The results of the simple atmospheric model suggested that the SCS SST anomalies can induce several barotropic wave trains from the SCS to other regions. The baroclinic stream function anomalies from the simple model showed an anticyclonic vortex pair and a cyclonic vortex pair.