Influence of solar activity on global large rivers runoff trends

摘要

The physical basis of the influence of solar activity on the climate is evident. The sun's heat and light energy warms the land surface and oceans and they radiate heat back into the air above. It is believed that increase of solar activity leads to a rise in atmospheric temperature, intensification of the hydrological cycle and consequently to an increase in river flow. The impacts of climate change have led to an increase in global and continental runoff in the last century (Labat et al. 2004). Observations also show a long-term increase trend of solar activity over the period 1855-1996 (Krivova and Solanki 2004). This phenomenon initiated a project to test the hypothesis: influence of solar activity on rivers discharge.