Aspects of a Decadal Sun-Atmosphere Connection
This paper brings up-to-date our correlations between the 10.7cm solar flux and 30mb heights, and our composites of temperatures and geopotential heights grouped according to the extremes of the 11-year solar cycle. It shows that our earlier results are robust. Furthermore, we demonstrate that the large correlation coefficients between the solar flux and the 30mb heights to a great extent are associated with temperature variations on a decadal scale in the middle and upper troposphere in the outer tropics-subtropics. Comparison between the vertical structure of the temperature difference between the extremes of the solar cycle and the vertical structure of the temperature difference between years of strong and weak Hadley circulations show that the two are similar, which suggests that a solar influence on the upper troposphere and lower stratosphere may include changes in the Hadley circulation.
KeywordsSolar Cycle Geopotential Height Solar Maximum Lower Stratosphere Hadley Circulation
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