Solar-Terrestrial Physics Solar-Terrestrial Physics Solar-Terrestrial Physics 2500-0535 85253 10.12737/stp-111202506 Results of current research Results of current research Results of current research Tropospheric response to solar effects during geomagnetic superstorms in solar cycle 23 Tropospheric response to solar effects during geomagnetic superstorms in solar cycle 23 Караханян Ашхен Арменовна Karakhanyan Ashkhen Armenovna asha@iszf.irk.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Молодых Сергей Иванович Molodykh Sergey Ivanovich sim@iszf.irk.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Институт солнечно-земной физики СО РАН Иркутск Россия Institute of Solar-Terrestrial Physics SB RAS Irkutsk Russian Federation Институт солнечно-земной физики СО РАН Иркутск Россия Institute of Solar Terrestrial Physics SB RAS Irkutsk Russian Federation 26 03 2025 26 03 2025 11 1 49 55 10 07 2024 20 11 2024 https://zh-szf.ru/en/nauka/article/85253/view

The ionospheric electric potential (EP) is used as a heliogeophysical parameter to analyze tropospheric response to solar impacts during geomagnetic superstorms in solar cycle 23. According to observational data, the response of meteoparameters is shown to concur with EP variations during the November 20, 2003 geomagnetic superstorm caused by an extreme geoeffective event. The tropospheric response is time-shifted versus EP maximum during the July 15, 2000 magnetic superstorm: increased precipitable water is observed in 6 hrs; decreased outgoing longwave radiation, in 12 hrs; increased upper cloudiness, in 18 hrs. We have found that the amplitude of the meteoparameters’ response to EP variations during the July 15, 2000 magnetic superstorm is about half as low as that of the tropospheric response during the November 20, 2003 geomagnetic superstorm.

The ionospheric electric potential (EP) is used as a heliogeophysical parameter to analyze tropospheric response to solar impacts during geomagnetic superstorms in solar cycle 23. According to observational data, the response of meteoparameters is shown to concur with EP variations during the November 20, 2003 geomagnetic superstorm caused by an extreme geoeffective event. The tropospheric response is time-shifted versus EP maximum during the July 15, 2000 magnetic superstorm: increased precipitable water is observed in 6 hrs; decreased outgoing longwave radiation, in 12 hrs; increased upper cloudiness, in 18 hrs. We have found that the amplitude of the meteoparameters’ response to EP variations during the July 15, 2000 magnetic superstorm is about half as low as that of the tropospheric response during the November 20, 2003 geomagnetic superstorm.

 ionospheric electric potential solar activity geomagnetic index outgoing longwave radiation cloudiness water vapor climate ionospheric electric potential solar activity geomagnetic index outgoing longwave radiation cloudiness water vapor climate The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation

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