2015/06/16 by A.D. Erlykin, Erlykin, Anatoly, Arnold Wolfendale +1
Computer Science · Environmental Science · #Atmospheric and Environmental Gas Dynamics #Atmospheric and Oceanic Physics (physics.ao-ph) #Climate variability and models #FOS: Physical sciences #Solar Radiation and Photovoltaics
paper · pdf · doi:10.48550/arxiv.1506.04916
openalex publication_date 2015/06/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The attribution of part of global warming to changes in the total solar\nirradiance (TSI) is an important topic which is not, yet, fully understood.\nHere, we examine the TSI induced temperature (T) changes on a variety of time\nscales, from one day to centuries and beyond, using a variety of assumptions.\nAlso considered is the latitude variation of the T-TSI correlations, where it\nappears that over most of the globe there is a small increase in the\nsensitivity of temperature to TSI in time. It is found that the mean global\nsensitivity (alpha)measured in K(Wm-2)-1 varies from about 0.003 for 1 day, via\n0.05 for 11-years to about 0.2 for decades to centuries. We conclude that mean\nglobal temperature changes related to TSI are not significant from 1975\nonwards.\n Before 1975, when anthropogenic gases were less important, many of the\ntemperature changes can be attributed to TSI variations. Over much longer\nperiods of time, from Kyear to Myear, the TSI changes are more efficient still,\nthe sensitivity alpha increasing ro about 0.5. Since 1975 the changes in mean\nglobal temperature are not due to TSI changes, but rather to the increasing\natmospheric CO2 content.\n