Dr. Vladimir I. Mordvinov Profile

Dr. Vladimir I. Mordvinov

at Institute of Solar-Terrestrial Physics

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Publications (4)

Proceedings Article | 18 December 2019 Paper

Climatic and circulation factors of high natural fire intensity in Eastern Siberia and the Far East

Olga Yu. Antokhina, Elena Devyatova, Lyudmila Golubeva, Vitali Kurdyukov, Inna Latysheva, Vladimir Mordvinov

Proceedings Volume 11208, 112086O (2019) https://doi.org/10.1117/12.2538730

KEYWORDS: Climatology, Humidity, Meteorology, Temperature metrology, Satellites, Troposphere, Atmospheric optics, Physics, Ecosystems, Atmospheric monitoring

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Proceedings Article | 18 December 2019 Paper

Dynamics of the mesosphere and lower thermosphere during sudden stratospheric warmings over the Asian region

O. Zorkaltseva, R. Vasilyev, V. Mordvinov, N. Dombrovskaya

Proceedings Volume 11208, 112086Z (2019) https://doi.org/10.1117/12.2540077

KEYWORDS: Mesosphere, Thermosphere, Stratosphere, Earth's atmosphere, Fabry–Perot interferometry, Atmospheric modeling, Atmospheric monitoring, Atmospheric physics, Interferometers, Climatology

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Proceedings Article | 13 December 2018 Paper

Precipitation in the Lake Baikal basin associated with different patterns of atmospheric blocking over Western Siberia

Olga Antokhina, Pavel Antokhin, Vladimir Mordvinov

Proceedings Volume 10833, 1083390 (2018) https://doi.org/10.1117/12.2505574

KEYWORDS: Meteorology, Atmospheric optics, Error analysis, Atmospheric physics, Physics, Floods, Natural disasters, Data archive systems, Climatology, Hydrology

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Proceedings Article | 30 November 2017 Paper

Peculiarities of the atmospheric blocking events over the Siberia and Russian Far East region during summertime

Olga Yu. Antokhina, Elena Devjatova , Vladimir Mordvinov

Proceedings Volume 10466, 104665V (2017) https://doi.org/10.1117/12.2287311

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We study the atmospheric blocking event evolution peculiarities over the Siberia and Far Eastern region (Russia) during summertime. Compared are two methods to identify blockings: from the 500 hPa (Z500) isobaric surface height distribution, and from the potential temperature at the dynamic tropopause (PV-θ) for every July 1979 through 2016. We revealed the situations, where blockings are identified only in one of the characteristics. Blocking identification by the PV-θ characteristics is complicated in the cases, when its cyclonic part appears to be filled with air masses of the southern origin, due to which there is no meridional gradient reversal in the PV-θ region. In the Z500 region, the difficulties to identify blocking events may arise in those cases, when the baric field fails to adapt to rapid changes in the temperature field associated with the air mass advection. For example, such events often occur over the ocean surface. We performed a synoptic analysis for several blocking events from the data on the velocity field dynamics at 850 hPа and PV-θ supplemented by the analysis of the observational rainfall data at the stations during those events. Distinguished were several stages of the blocking evolution over the Siberia and Far Eastern region that involved air masses from the East Asian summer monsoon region: 1. The formation of a blocking over Western Siberia; 2. Cold inflow on the blocking eastern periphery, the East Asian summer monsoon front activation, and a cyclone formation (east of Lake Baikal), in whose system the monsoon air was actively involved. Such monsoon cyclones, as a rule, are deep long-living formations, and they bring abnormal precipitations; 3. The formation of a ridge or anticyclone east of the monsoon cyclone, caused by the advection of the same monsoon flow, whose part is involved in a cyclone system. In general, the East Asian summer monsoon influence comes to the effects of regeneration and intensification of the blocking circulating systems. Those effects are often accompanied by strong droughts in some regions and floods in others.

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