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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Trends and Causes of Long-term Changes in Erythemal UV Irradiance and UV 300-380 nm in Moscow, Russiaтезисы доклада
- Авторы: Chubarova Natalia, Zhdanova Ekaterina, Nezval Elena
- Сборник: Book of Abstracts IRS 2022
- Тезисы
- Год издания: 2022
- Номер статьи: 389
- Аннотация: Ozone depletion and cloudiness change significantly influence the solar UV radiation levels at the Earth’s surface relevant for human health. There is a wide program of UV measurements at the Meteorological Observatory of Moscow State University since 1968 till nowadays. The UV measurements in the spectral range of 300-380 nm started in 1968 by a self-constructed instrument and continued by broadband UV-A YES-1 and Kipp & Zonen UV radiometers. Biologically active erythemal irradiance have been in operation since 1999 by broadband UV-B YES-1 and Kipp & Zonen UV radiometers. To maintain high quality of measurements, checking of calibration coefficients were regularly carried on against reference instruments, which, in turn, were calibrated against European standards. Measurements were also validated against the results of UV transfer model. We present the results of intercomparison between different broadband instruments. In addition, long-term interannual UV variability is studied using both measurements and reconstruction model over the period of 1968-2020. We revealed trends and temporal peculiarities of UV radiation variability, relative changes in erythemal UV radiation due to absorption by ozone and attenuation by cloudiness. Effect of cloudiness changes on UV radiation is also assessed using UV measurements in the spectral range of 300-380 nm. Special attention was paid to the effects of aerosol optical thickness long-term changes on the trends in UV irradiance. Acknowledgements The work was partially supported by the Ministry of Education and Science of the Russian Federation (grant number 075-15-2021-574).
- Добавил в систему: Жданова Екатерина Юрьевна