Solar influence on the tropical stratosphere and troposphere in the northern summer

Abstract

Solar influence on the tropical stratosphere and troposphere in northern summer is studied by using reanalysis data from 1958 to 2004. Temperature tendency and vertical velocities are investigated to demonstrate an importance of the development of solar signal from June to August. The use of the temperature tendency reduced a problem due to the change of the observation system, and made possible to revealed a clear relationship between the stratospheric meridional circulation and the Indian ocean monsoon circulation in the troposphere through four solar cycles. Copyright 2006 by the American Geophysical Union.