Solar-Terrestrial Physics Solar-Terrestrial Physics Solar-Terrestrial Physics 2500-0535 73218 10.12737/stp-102202403 Results of current research Results of current research Results of current research Monitoring of near-Earth space, Earth’s magnetosphere and atmosphere during Forbush decreases in August 2005 Monitoring of near-Earth space, Earth’s magnetosphere and atmosphere during Forbush decreases in August 2005 Ковалев Иван Иванович Kovalev Ivan Ivanovich ivankov@iszf.irk.ru https://orcid.org/0000-0002-9497-5823 Кравцова Марина Владимировна Kravtsova Marina Vladimirovna rina@iszf.irk.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Олемской Сергей Владимирович Olemskoy Sergey Vladimirovich osv@iszf.irk.ru

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 Сдобнов Валерий Евгеньевич Sdobnov Valeriy Evgen'evich sdobnov@iszf.irk.ru

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 https://orcid.org/0000-0002-2343-1618 Стародубцев Сергей Анатольевич Starodubtsev Sergei Anatolyevich starodub@ikfia.ysn.ru

доктор физико-математических наук;

doctor 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 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 Институт космофизических исследований и аэрономии им. Ю.Г. Шафера СО РАН Якутск Россия Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS Yakutsk Russian Federation 25 06 2024 25 06 2024 10 2 26 33 09 01 2024 26 03 2024 https://zh-szf.ru/en/nauka/article/73218/view

We present the results of near-Earth interplanetary space, magnetosphere, and atmosphere monitoring during large-scale solar wind disturbances at the end of August 2005. The monitoring was carried out using ground-level cosmic ray (CR) observations made at the worldwide network of neutron monitors as well as muon telescopes in Yakutsk and Novosibirsk. As a result of the analysis performed by different methods, we have obtained variation properties of CRs of different rigidities in Earth’s orbit, their pitch angle anisotropy, orientation and configuration of the interplanetary magnetic field, changes in the planetary system of geomagnetic cutoff rigidities during geomagnetic disturbances, as well as mass average air temperature over CR stations equipped with muon telescopes. For the periods of geomagnetic disturbances, we have determined parameters of magnetospheric ring current and magnetopause currents.

We present the results of near-Earth interplanetary space, magnetosphere, and atmosphere monitoring during large-scale solar wind disturbances at the end of August 2005. The monitoring was carried out using ground-level cosmic ray (CR) observations made at the worldwide network of neutron monitors as well as muon telescopes in Yakutsk and Novosibirsk. As a result of the analysis performed by different methods, we have obtained variation properties of CRs of different rigidities in Earth’s orbit, their pitch angle anisotropy, orientation and configuration of the interplanetary magnetic field, changes in the planetary system of geomagnetic cutoff rigidities during geomagnetic disturbances, as well as mass average air temperature over CR stations equipped with muon telescopes. For the periods of geomagnetic disturbances, we have determined parameters of magnetospheric ring current and magnetopause currents.

 cosmic rays Forbush effect magnetosphere atmosphere cosmic rays Forbush effect magnetosphere atmosphere The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation, SHICRA SB RAS (Scientific Topic FWRS-2021-0012, State Registration Number in INIS RDE 122011700180-7) The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation, SHICRA SB RAS (Scientific Topic FWRS-2021-0012, State Registration Number in INIS RDE 122011700180-7)

Abunin A.A., Abunina M.A., Belov A.V., Eroshenko E.A., Oleneva V.A., Yanke V.G. Forbush effects with a sudden and gradual onset. Geomagnetism and Aeronomy. 2012, vol. 52, iss. 3, pp. 292–299. Abunin A.A., Abunina M.A., Belov A.V., Eroshenko E.A., Oleneva V.A., Yanke V.G. Forbush effects with a sudden and gradual onset. Geomagnetism and Aeronomy. 2012, vol. 52, iss. 3, pp. 292–299. Alania M.V., Wawrzynczak A., Sdobnov V.E., Kravtsova M.V. Temporal changes in the rigidity spectrum of Forbush. Solar Phys. 2013. Vol. 286. P. 561–576. DOI 10.1007/ s11207-013-0273-0. Alania M.V., Wawrzynczak A., Sdobnov V.E., Kravtsova M.V. Temporal changes in the rigidity spectrum of Forbush. Solar Phys. 2013. Vol. 286. P. 561–576. DOI 10.1007/ s11207-013-0273-0. Asai A., Shibata K., Ishii T.T., Oka M., Kataoka R., Fujiki K., Gopalswamy N. Evolution of the anemone AR NOAA 10798 and the related geo-effective flares and CMEs. J. Geophys. Res. 2009, vol. 114, no A00A21. DOI: 10.1029/2008JA013291. Asai A., Shibata K., Ishii T.T., Oka M., Kataoka R., Fujiki K., Gopalswamy N. Evolution of the anemone AR NOAA 10798 and the related geo-effective flares and CMEs. J. Geophys. Res. 2009, vol. 114, no A00A21. DOI: 10.1029/2008JA013291. Belov A.V., Eroshenko E.A., Oleneva V.A., Struminsky A.V., Yanke V.G. What are Forbush effects caused by and what are they associated with? Bulletin of the Academy of Sciences of USSR. Ser. Physics. 2001, vol. 65, iss. 3, pp. 411–414. Belov A.V., Eroshenko E.A., Oleneva V.A., Struminsky A.V., Yanke V.G. What are Forbush effects caused by and what are they associated with? Bulletin of the Academy of Sciences of USSR. Ser. Physics. 2001, vol. 65, iss. 3, pp. 411–414. Cane H.V., Richardson I.G., Wibberenz G., Dvornikov V.M., Sdobnov V.E. Cosmic ray evidence for magnetic field line disconnection inside interplanetary coronal mass ejections. Proc. 27th Int. Cosmic Ray Conf. Hamburg, Germany, August 2001. 2001, vol. 9, pp. 3531–3534. Cane H.V., Richardson I.G., Wibberenz G., Dvornikov V.M., Sdobnov V.E. Cosmic ray evidence for magnetic field line disconnection inside interplanetary coronal mass ejections. Proc. 27th Int. Cosmic Ray Conf. Hamburg, Germany, August 2001. 2001, vol. 9, pp. 3531–3534. Dvornikov V.M., Matyukhin Yu.G. Energeticheskiye poteri kosmicheskikh luchey pri dvizhenii v regulyarnom magnitnom pole solnechnogo vetra [Energetic loss of cosmic rays when moving in a regular magnetic field of the solar wind] Izvestiya Akademii Nauk SSSR. Seriya Fizicheskaya [Bulletin of the Academy of Sciences of USSR. Ser. Physics]. 1976, vol. 39, iss. 3, pp. 624–626. (In Russian). Dvornikov V.M., Matyukhin Yu.G. Energeticheskiye poteri kosmicheskikh luchey pri dvizhenii v regulyarnom magnitnom pole solnechnogo vetra [Energetic loss of cosmic rays when moving in a regular magnetic field of the solar wind] Izvestiya Akademii Nauk SSSR. Seriya Fizicheskaya [Bulletin of the Academy of Sciences of USSR. Ser. Physics]. 1976, vol. 39, iss. 3, pp. 624–626. (In Russian). Dvornikov V.M., Matyukhin Yu.G. Effekty modulyatsii kosmicheskikh luchey v korotiruyushchikh magnitnykh lovushkakh solnechnogo vetra. Izv. АN SSSR. Ser. fiz. 1979, vol. 43, iss. 12, pp. 2573–2576. (In Russian). Dvornikov V.M., Matyukhin Yu.G. Effekty modulyatsii kosmicheskikh luchey v korotiruyushchikh magnitnykh lovushkakh solnechnogo vetra. Izv. AN SSSR. Ser. fiz. 1979, vol. 43, iss. 12, pp. 2573–2576. (In Russian). Dvornikov V.M., Sdobnov V.E. Time variations of the cosmic ray distribution function during a solar event of September 29, 1989. J. Geophys. Res. 1997, vol. 102, A11, pp. 24209–24219. Dvornikov V.M., Sdobnov V.E. Time variations of the cosmic ray distribution function during a solar event of September 29, 1989. J. Geophys. Res. 1997, vol. 102, A11, pp. 24209–24219. Dvornikov V.M., Kravtsova M.V., Sdobnov V.E. Diagnostics of the Electromagnetic Characteristics of the Interplanetary Medium Based on Cosmic Ray Effects. Geomagnetism and Aeronomy. 2013, vol. 53, no 4, pp. 430–440. DOI: 10.1134/S0016793213040075. Dvornikov V.M., Kravtsova M.V., Sdobnov V.E. Diagnostics of the Electromagnetic Characteristics of the Interplanetary Medium Based on Cosmic Ray Effects. Geomagnetism and Aeronomy. 2013, vol. 53, no 4, pp. 430–440. DOI: 10.1134/S0016793213040075. Dorman L.I. Variatsii kosmicheskikh luchey [Variations of cosmic rays]. Moscow, Gos. Izdatel’stvo tekhniko-teoreticheskoy Literatury, 1957, 492 p. (In Russian). Dorman L.I. Variatsii kosmicheskikh luchey [Variations of cosmic rays]. Moscow, Gos. Izdatel’stvo tekhniko-teoreticheskoy Literatury, 1957, 492 p. (In Russian). Forbush S.E. On the effects in the cosmic-ray intensity observed during the recent magnetic storm. Phys. Rev. 1937, vol. 51, pp. 1108–110. Forbush S.E. On the effects in the cosmic-ray intensity observed during the recent magnetic storm. Phys. Rev. 1937, vol. 51, pp. 1108–110. Grigoryev V.G., Starodubtsev S.A., Dvornikov V.M., Sdobnov V.E. Estimation of the solar proton spectrum in the GLE70 event. Adv. Space Res. 2009, vol. 43, pp. 515–517. DOI: 10.1016/j.asr.2008.08.010. Grigoryev V.G., Starodubtsev S.A., Dvornikov V.M., Sdobnov V.E. Estimation of the solar proton spectrum in the GLE70 event. Adv. Space Res. 2009, vol. 43, pp. 515–517. DOI: 10.1016/j.asr.2008.08.010. Kichigin G.N., Sdobnov V.E. Geomagnetic cutoff rigidities of cosmic rays in a model of the bounded magnetosphere with the ring current. Geomagnetism and Aeronomy. 2017, vol. 57, iss. 2, pp. 132–136. DOI: 10.1134/S0016793217020049. Kichigin G.N., Sdobnov V.E. Geomagnetic cutoff rigidities of cosmic rays in a model of the bounded magnetosphere with the ring current. Geomagnetism and Aeronomy. 2017, vol. 57, iss. 2, pp. 132–136. DOI: 10.1134/S0016793217020049. Kichigin G.N., Kravtsova M.V., Sdobnov V.E. Parameters of current systems in the magnetosphere as derived from observations of cosmic rays during the 2015 June magnetic storm. Solar-Terr. Phys. 2017, vol. 3, iss. 3, pp. 13–17. DOI: 10.12737/stp-33201702. Kichigin G.N., Kravtsova M.V., Sdobnov V.E. Parameters of current systems in the magnetosphere as derived from observations of cosmic rays during the 2015 June magnetic storm. Solar-Terr. Phys. 2017, vol. 3, iss. 3, pp. 13–17. DOI: 10.12737/stp-33201702. Kovalev I.I., Olemskoy S.V, Sdobnov V.E. A proposal to extend the spectrographic global survey method. J. Atmos. Solar-Terr. Phys. 2022, vol. 235, 105887. DOI: 10.1016/ j.jastp.2022.105887. Kovalev I.I., Olemskoy S.V, Sdobnov V.E. A proposal to extend the spectrographic global survey method. J. Atmos. Solar-Terr. Phys. 2022, vol. 235, 105887. DOI: 10.1016/ j.jastp.2022.105887. Krymskiy G.F. Diffusion mechanism of diurnal cosmic-ray variations. Geomagnetism and Aeronomy. 1964, vol. 4, no 6, pp. 763–769. Krymskiy G.F. Diffusion mechanism of diurnal cosmic-ray variations. Geomagnetism and Aeronomy. 1964, vol. 4, no 6, pp. 763–769. Krymskii G.F., Modulyatsiya kosmicheskikh luchei v mezhplanetnom prostranstve [Cosmic ray modulation in the interplanetary space]. Moscow, Nauka Publ., 1969, 152 p. (In Russian). Krymskii G.F., Modulyatsiya kosmicheskikh luchei v mezhplanetnom prostranstve [Cosmic ray modulation in the interplanetary space]. Moscow, Nauka Publ., 1969, 152 p. (In Russian). Kuzmin A.I. Variatsii kosmicheskikh luchey vysokikh energiy [High energy cosmic ray variations]. Moscow, Nauka Publ., 1964, 126 p. (In Russian). Kuzmin A.I. Variatsii kosmicheskikh luchey vysokikh energiy [High energy cosmic ray variations]. Moscow, Nauka Publ., 1964, 126 p. (In Russian). Liu Y., Hayashi K. The 2003 October–November fast halo coronal mass ejections and the large-scale magnetic field structures. Astrophys. J. 2006, vol. 640, 1135. DOI: 10.1086/500290. Liu Y., Hayashi K. The 2003 October–November fast halo coronal mass ejections and the large-scale magnetic field structures. Astrophys. J. 2006, vol. 640, 1135. DOI: 10.1086/500290. Parker E.N. Cosmic ray modulation by the solar wind. Phys. Rev. 1958. Vol. 110, no. 6. P. 328–334. Parker E.N. Cosmic ray modulation by the solar wind. Phys. Rev. 1958. Vol. 110, no. 6. P. 328–334. Ptitsyna N.G., Danilova O.A., Tyasto M.I., Sdobnov V.E. Cosmic ray cutoff rigidity governing by solar wind and magnetosphere parameters during the 2017 Sep 6–9 solar-terrestrial event. J. Atmos. Solar-Terr. Phys. 2023, vol. 246, 106067. DOI: 10.1016/j.jastp.2023.106067. Ptitsyna N.G., Danilova O.A., Tyasto M.I., Sdobnov V.E. Cosmic ray cutoff rigidity governing by solar wind and magnetosphere parameters during the 2017 Sep 6–9 solar-terrestrial event. J. Atmos. Solar-Terr. Phys. 2023, vol. 246, 106067. DOI: 10.1016/j.jastp.2023.106067. Richardson I.G., Dvornikov V.M., Sdobnov V.E., Cane H.V. Bidirectional particle flows at cosmic ray and lower (~1 MeV) energies and their association with interplanetary coronal mass ejections/ejecta. JGR. 2000, vol. 105, no A6, pp. 12579–12591. DOI: 10.1029/1999JA000331. Richardson I.G., Dvornikov V.M., Sdobnov V.E., Cane H.V. Bidirectional particle flows at cosmic ray and lower (~1 MeV) energies and their association with interplanetary coronal mass ejections/ejecta. JGR. 2000, vol. 105, no A6, pp. 12579–12591. DOI: 10.1029/1999JA000331. Verma V.K. On the origin of solar coronal mass ejections. J. Ind. Geophys. Union. 1998, vol. 2, pp. 65–74. Verma V.K. On the origin of solar coronal mass ejections. J. Ind. Geophys. Union. 1998, vol. 2, pp. 65–74. URL: https://cdaw.gsfc.nasa.gov/CME_list/UNIVERSAL_ ver1/2005_08/univ2005_08.html (accessed January 10, 2024). URL: https://cdaw.gsfc.nasa.gov/CME_list/UNIVERSAL_ ver1/2005_08/univ2005_08.html (accessed January 10, 2024). URL: https://cdaw.gsfc.nasa.gov/CME_list/radio/waves_ type2.html (accessed January 10, 2024). URL: https://cdaw.gsfc.nasa.gov/CME_list/radio/waves_ type2.html (accessed January 10, 2024). URL: https://omniweb.gsfc.nasa.gov (accessed January 10, 2024). URL: https://omniweb.gsfc.nasa.gov (accessed January 10, 2024). URL: https://lweb.cfa.harvard.edu/shocks (accessed January 10, 2024). URL: https://lweb.cfa.harvard.edu/shocks (accessed January 10, 2024). URL: https://www.nmdb.eu (accessed January 10, 2024). URL: https://www.nmdb.eu (accessed January 10, 2024). URL: https://ysn.ru/ipm/yktMT00 (accessed January 10, 2024). URL: https://ysn.ru/ipm/yktMT00 (accessed January 10, 2024). URL: https://cosm-rays.ipgg.sbras.ru (accessed January 10, 2024). URL: https://cosm-rays.ipgg.sbras.ru (accessed January 10, 2024). URL: https://www.solarmonitor.org (accessed January 10, 2024). URL: https://www.solarmonitor.org (accessed January 10, 2024). URL: https://lweb.cfa.harvard.edu (accessed January 10, 2024). URL: https://lweb.cfa.harvard.edu (accessed January 10, 2024). URL: https://cdaw.gsfc.nasa.gov (accessed January 10, 2024). URL: https://cdaw.gsfc.nasa.gov (accessed January 10, 2024). URL: ftp://arlftp.arlhq.noaa.gov/pub/archives/gdas1 (accessed January 10, 2024). URL: ftp://arlftp.arlhq.noaa.gov/pub/archives/gdas1 (accessed January 10, 2024). URL: http://ckp-rf.ru/ckp/3056/ (accessed January 10, 2024). URL: http://ckp-rf.ru/ckp/3056/ (accessed January 10, 2024). URL: https://ckp-rf.ru/catalog/usu/433536/ (accessed January 10, 2024). URL: https://ckp-rf.ru/catalog/usu/433536/ (accessed January 10, 2024).