The 11-year Solar Cycle in the Lower Stratosphere Extracted by the Empirical Mode Decomposition Method
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11-Year solar cycle in the stratosphere extracted by the empirical mode decomposition method
We apply a novel method to extract the solar cycle signal from stratospheric data. An alternative to traditional analysis is a nonlinear empirical mode decomposition (EMD) method. This method is adaptive and therefore highly efficient at identifying embedded structures, even those with small amplitudes. Using this analysis, the geopotential height in the Northern Hemisphere can be completely de...
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