Abstract Modeling Doses of UV radiation for vitamin D production in the 21st century | UCP
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Modeling Doses of UV radiation for vitamin D production in the 21st century

ISARD-2025-ozon006

Vladimir A. Zubov1,2, Eugene V. Rozanov1,3, Tania A. Egorova3
1 Saint-Petersburg State University, Saint-Petersburg, Russia 2 Voeikov Main Geophysical Observatory, Saint-Petersburg, Russia 3 Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center (PMOD/WRC), Davos, Switzerland
v.a.zubov@spbu.ru

The model of the Earth climate system SOCOLv4 and the atmospheric radiation transfer model FASTRT (UVSPEC) have been used to calculate the changes of the daily doses of ultraviolet radiation for vitamin D production (UVvD) under conditions of the climate and atmospheric ozone changes in the 21st century. The model runs according to the greenhouse gases evolution scenario SSP5-8.5 and the WMO scenario for ozone depleting substances showed the substantial (20-80%) decrease of the UVvD doses at the Earth's surface from 2015-2024 to 2090-2099 years in the middle latitudes of both hemispheres and their increase by 30-40% in some areas of the lower latitudes. The experiment results also allowed us to evaluate the contributions of the total ozone column, cloud parameters, and surface albedo variations to the corresponding changes of the UVvD daily doses over the 21st century.

 

The investigation was supported by:

 «St. Petersburg State University», grant 116234986

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