Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2013, Vol. 10, No. 1, pp. 60-71
The investigation of stochastic modes of tropical cyclogenesis under the influence of solar activity and ENSO events based on wavelet transform
A.R. Nurmukhametov
, E.A. Sharkov
Space Research Institute RAS, Moscow, Russia
Temporary generation rate of tropical cyclones is a serious and unresolved problem. In this paper, the approach is associated with the formation of the temporal flow of events of tropical cyclones. The effects of the active phase of ENSO are shown on the accumulation function of regional tropical cyclogenesis. The investigation of the spatial and temporal structure of the global tropical cyclogenesis and solar radiation, the phenomenon of ENSO are performed. For this purpose wavelet spectra were constructed for these signals during the study period of 15 years from 1995 to 2010. They allow visually track the characteristics of the studied processes, allocate specific time-frequency dependence, and provide insight on the interaction of these processes. The structure of the six-month and 27 day bright component is shown in global tropical cyclogenesis and solar activity. Previously obtained results are confirmed by new data on the response of the global cyclogenesis to external action with a 27-day period of solar activity.
Keywords: tropical cyclogenesis, ENSO, solar activity, wavelet transform.
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