Possible climatic and biological impact of nearby supernovae

Details Possible climatic and biological impact of nearby supernovae Possible climatic and biological impact of nearby supernovae

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978natur.271..430h&link_type=abstract

Nature, Volume 271, Issue 5644, pp. 430-431 (1978).

Physics

6

Scientific paper

OZONE plays a very important part in atmospheric radiative transfer. The absorption of the solar ultraviolet radiation by ozone is the dominant heating mechanism in the stratosphere. At thermal infrared wavelengths the main ozone contribution comes from the 9.6 µm band. Clark et al.1 were unclear, however, whether the supernovae removal of ozone from the atmosphere of the Earth would heat or cool the surface of the planet. There is evidence, reported here, which enables a more precise statement to be made of the effect upon the global Earth. The reduction in the concentration of ozone will cool the stratosphere, troposphere and surface layers of the Earth.

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