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JOURNAL OF GEOPHYSICAL RESEARCH,
VOL. 109,
D21105,
7 PP., 2004
doi:10.1029/2004JD004873
Eleven-year solar cycle signal throughout the lower atmosphere
Department of Applied Mathematics, University of Washington, Seattle, Washington, USA
Department of Applied Mathematics, University of Washington, Seattle, Washington, USA
A statistically significant atmospheric signal, which represents the influence of solar radiation changes on our climate, is found in global data (1958–2003). Using a nonlinear, nonstationary time series analysis, called empirical mode decomposition, it is shown that atmospheric temperatures and geopotential heights are composed of five global oscillations and a trend. The fourth mode is synchronized with the 11-year solar flux almost everywhere in the lower atmosphere. Statistical tests show that this signal is different from noise, indicating that there is enhanced warming in the troposphere during times of increased solar radiation.
Received 6 April 2004; accepted 5 August 2004; published 6 November 2004.
Citation: (2004), Eleven-year solar cycle signal throughout the lower atmosphere, J. Geophys. Res., 109, D21105, doi:10.1029/2004JD004873.
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