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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Contribution of changing galactic cosmic ray flux to global warming
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Contribution of changing galactic cosmic ray flux to global warming

机译：银河宇宙射线通量变化对全球变暖的贡献

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The well established excellent correlation between low-level clouds and primary cosmic ray intensity, which act as nuclei for cloud condensation, clearly shows that a decrease in primary cosmic ray intensity results in lesser low cloud cover. Reduced albedo radiation reflected back into space, due to lesser low cloud cover, results in an increase in the surface temperature on the earth. Extrapolation of the intensity of galactic cosmic radiation using Be-10 measurements in deep polar ice as the proxy, clearly shows that the primary cosmic ray intensity has decreased by 9% during the last 150 years, due to the continuing increase in solar activity. We present evidence to show that the radiative forcing component due to the decrease in primary cosmic ray intensity during the last 150 years is 1.1 Wm(-2), which is about 60% of that due to CO2 increase. We conclude that the future prediction of global warming presented by IPCC4 requires a relook to take into the effect due to long-term changes in the galactic cosmic ray intensity.
机译：低层云与作为云凝结核的主要宇宙射线强度之间建立的极好的相关性清楚地表明，主要宇宙射线强度的降低导致较低的低云层覆盖。由于较低的低云量，减少了反射回太空的反照率辐射，导致地球表面温度升高。以深极冰中的Be-10测量为代表的银河系宇宙射线强度的推算清楚地表明，由于太阳活动的持续增加，过去150年中主要的宇宙射线强度下降了9％。我们目前的证据表明，在过去的150年中，由于主要宇宙射线强度的下降而引起的辐射强迫分量为1.1 Wm（-2），大约是由于CO2增大引起的辐射强迫分量的60％。我们得出结论，由于银河宇宙射线强度的长期变化，需要对IPCC4提出的全球变暖的未来预测进行重新考虑。

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