| Popis: |
The coherent temporal variations of geomagnetic field and climate have been noticed by many authors, despite the existing controversy about the sign of their relation. This chapter shows that none of the proposed mechanism is able to explain the spatial-temporal specificity of the geomagnetic–climate relations. The main focus of the chapter is on the mechanism imprinting the heterogeneously distributed lower stratospheric ozone on the surface temperature. According to this, the alteration of tropopause temperature, and consequently of the upper tropospheric lapse rate (by ozone variation just above the tropopause), are projected on the near tropopause humidity. The latter itself affects the strength of the greenhouse effect, warming or cooling the regional surface temperature. The testing of the hypothesis via the RegCM model for China domain shows that increased ozone density between tropopause and 50 hPa is able to reproduce the winter cooling of South-Eastern Asia during the period 2002–12, reported by many authors. |
