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Thunderstorms in Russian and Indian citiesтезисы доклада
- Авторы: Lokoshchenko M.A., Elansky N.F., Alekseeva L.I., Bogdanovich A.Yu, Gouda Krushna C.
- Сборник: Volume of Abstracts of the International Conference on Thunderstorm & Lightning in Tropics (ICTLT-2019) 17th–19th January, 2019;
- Тезисы
- Год издания: 2019
- Место издания: Siksha ‘O’ Anusandhan (Deemed to be University) Bhubaneswar, Odisha, India
- Первая страница: 23
- Последняя страница: 23
- Аннотация: Thunderstorm is dangerous weather phenomenon which is detected by the ground meteorological network all over the World and is often connected with shower, wind strengthening and, sometimes, even with squall. Among others, thunderstorms may significantly influence on the air composition as a result both of chemical reactions inside lightning, and of strong vertical mixing in Cb clouds. An important task is a comparison of thunderstorm events and their statistical parameters in Tropics and in mid-latitudes (for example, in conditions of Bangalore and Moscow). General climatic information about thunderstorms in Moscow city (Russia) will be given for the period from 1954 to 2018 by the data of Moscow University Meteorological observatory including their total probability, annual and diurnal courses, specific features of different seasons, relations with synoptic processes, etc. As a result of analysis, thunderstorms have been found to be detected in Moscow usually in warm and transitional seasons. In winter in Moscow this weather phenomenon is extremely rare event. In the daily course thunderstorms as a rule are observed in the afternoon or at night. They are usually connected with passing of sharp cold atmospheric fronts. Besides, average dynamics of the wind velocity in the atmospheric boundary layer up to 500 m height above the ground during thunderstorms will be studied by the data of MODOS sodar (METEK) which operates at Moscow UniversityMeteorological observatory since 2004. It was found that thunderstorms in Moscow are usually accompanied by the average wind speed increase by 1 m/s during 30–40 minutes after their beginning. Moreover, a special analysis of the air composition changes as a result of thunderstorms will be made and presented as well, including dynamics of the surface concentrations of different minor air gases (ozone, nitrogen dioxide, and so on) before and after each case of thunderstorm. A statistical significance of all effects will be tested precisely using classic criteria. Results of similar analysis will be presented as well for Bangalore city (India). A comparison between climatic conditions of thunderstorms in Russia and in India will be discussed.
- Добавил в систему: Локощенко Михаил Александрович