Enhanced UV penetration due to ozone cross-section changes induced by CO2 doubling

Details Enhanced UV penetration due to ozone cross-section changes induced by CO2 doubling Enhanced UV penetration due to ozone cross-section changes induced by CO2 doubling

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997georl..24.3229y&link_type=abstract

Geophysical Research Letters, Volume 24, Issue 24, p. 3229-3232

Physics

2

Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions, Atmospheric Composition And Structure: Evolution Of The Atmosphere, Global Change: Climate Dynamics, Meteorology And Atmospheric Dynamics: Radiative Processes

Scientific paper

Models predict that CO2 doubling in the atmosphere cools the stratosphere by as much as 10°C. We argue that this effect alone, through the temperature dependence of the ozone spectrum, can result in an increase of a few percent in UV-B (280-320 nm) penetration at the Earth's surface. The increase in Erythema-weighted UV radiation is about 1%. Future spectral observations of UV at the surface could distinguish this effect from any result of changes in ozone abundance.

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