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Vol. 28, issue 07, article # 4

Komarov V. S., Matvienko G. G., Lomakina N. Ya., Ilin S. N., Lavrinenko A. V. Statistical structure and long-term change of the lower stratiform clouds over Siberia as a base for meteorological support for solution of applied problems. Part 1. Statistics of lower stratiform clouds. // Optika Atmosfery i Okeana. 2015. V. 28. No. 07. P. 622-629. DOI: 10.15372/AOO20150704 [in Russian].
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Abstract:

The paper presents the results of the statistical analysis of characteristics of the lower stratiform clouds, obtained according to the 8-term meteorological observations of 60 Siberian stations for the last 45 years (from 1969 to 2013). Researches of the amount and the base of stratiform low clouds (Sc, St, Ns) have been conducted for four seasons. Wherein the statistics such as the average value (balls) and the frequency (%) for five ranges: 0, 1–3, 4–6, 7–9, 10 were used in the analysis of the amount of lower stratiform clouds and the averages (km) and repeatability (%) for six ranges of the base height: 0.05–0.2; 0.2–0.4; 0.4–0.8; 0.8–1.2; 1.2–1.6; 1.6–2.0 km, supplemented with the gradation “cloudiness” (0) were used in the analysis of the cloud base.

Keywords:

lower stratiform clouds, cloud amount, cloud base height, the statistical characteristics, Siberian region

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