Variations of solar radiation input to the lower atmosphere associated with different helio/geophysical factors |
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| Institution: | 1. College of Civil Engineering and Architecture, Guangxi University, 100 University Road, Nanning, Guangxi 530004, China;2. Key Laboratory of Disaster Prevention and Engineering Safety of Guangxi, Nanning 530004, China;3. The Science & Technology Division, Guangxi University, 100 University Road, Nanning, Guangxi 530004, China |
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| Abstract: | The influence of helio/geophysical factors on the solar energy input to the lower atmosphere has been studied at the network of actinometric stations of Russia in different latitudinal belts. It was found that there are appreciable changes in the half-yearly values of total radiation associated with galactic cosmic ray (GCR) variations in the 11-yr solar cycle, the increase of GCR flux being accompanied by a decrease of the total radiation at higher latitudes and by its increase at lower latitudes. Auroral phenomena and solar flare activity are likely to affect the solar radiation input to the high-latitudinal belt together with GCR variations, the increase of both these factors resulting in the decrease of total radiation. The changes found in the total radiation fluxes in the lower atmosphere seem to be related to the cloud cover variations associated with the solar and geophysical phenomena under study. The variations of the solar radiation input in the 11-yr-cycle amounting to ±4–6% may be an important factor affecting tropospheric dynamics. |
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