Radiative effects of low and high-level clouds over Western Siberia according to satellite observations and numerical simulation

Ilmir M. Nasrtdinov; Kseniya V. Kuryanovich; Tatiana B. Zhuravleva; Vladimir G. Astafurov; Alexey V. Skorokhodov

doi:10.1117/12.2690382

17 October 2023 Radiative effects of low and high-level clouds over Western Siberia according to satellite observations and numerical simulation

Ilmir M. Nasrtdinov, Kseniya V. Kuryanovich, Tatiana B. Zhuravleva, Vladimir G. Astafurov, Alexey V. Skorokhodov

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Proceedings Volume 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 127800X (2023) https://doi.org/10.1117/12.2690382
Event: XXIX International Symposium "Atmospheric and Ocean Optics, Atmospheric Physics", 2023, Moscow, Russian Federation

Abstract

Model estimates of short-wave solar radiation fluxes for summer conditions in the southern part of Western Siberia in the presence of single-layer of the low and high-level clouds are presented. The cloudiness characteristics were obtained on the basis of statistical models based on long-term satellite MODIS observations: the ranges of variability of the optical thickness and effective particle radius were 1.5-40 and 7.5-25 mkm for liquid clouds and 1-5 and 15-50 mkm for ice clouds, respectively. These low-level clouds characteristics variations lead to changes in the average daily radiation fluxes in the range of 150-300 W/m² at the bottom (BOA) and 130-230 W/m² at the top (TOA) of the atmosphere and for ice clouds 230-310 W/m² at the BOA and 140-220 W/m² at the TOA. At a fixed optical depth, there is a relatively weak dependence of the average daily radiation fluxes on the effective particle radius.

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Ilmir M. Nasrtdinov, Kseniya V. Kuryanovich, Tatiana B. Zhuravleva, Vladimir G. Astafurov, and Alexey V. Skorokhodov "Radiative effects of low and high-level clouds over Western Siberia according to satellite observations and numerical simulation", Proc. SPIE 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 127800X (17 October 2023); https://doi.org/10.1117/12.2690382

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KEYWORDS

Clouds

Ice

Particles

Satellites

Liquids

Solar radiation

Data modeling

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