Solar Activity,Lightning and Climate |
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Authors: | Devendraa Siingh R. P. Singh Ashok K. Singh M. N. Kulkarni A. S. Gautam Abhay K. Singh |
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Affiliation: | (1) Indian Institute of Tropical Meteorology, Pune, 411 008, India;(2) Department of Physics, Banaras Hindu University, Varanasi, 211 005, India;(3) Physics Department, Lucknow University, Lucknow, 226 007, India |
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Abstract: | The physics of solar forcing of the climate and long term climate change is summarized, and the role of energetic charged particles (including cosmic rays) on cloud formation and their effect on climate is examined. It is considered that the cosmic ray-cloud cover hypothesis is not supported by presently available data and further investigations (during Forbush decreases and at other times) should be analyzed to further examine the hypothesis. Another player in climate is lightning through the production of NOx; this greenhouse gas, water vapour in the troposphere (and stratosphere) and carbon dioxide influence the global temperature through different processes. The enhancement of aerosol concentrations and their distribution in the troposphere also affect the climate and may result in enhanced lightning activity. Finally, the roles of atmospheric conductivity on the electrical activity of thunderstorms and lightning discharges in relation to climate are discussed. |
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