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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Solar-Terrestrial Physics</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Solar-Terrestrial Physics</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Солнечно-земная физика / Solnechno-Zemnaya Fizika / Solar-Terrestrial Physics</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2712-9640</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">57297</article-id>
   <article-id pub-id-type="doi">10.12737/szf-92202310</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>ВОСЕМНАДЦАТАЯ ЕЖЕГОДНАЯ КОНФЕРЕНЦИЯ «ФИЗИКА ПЛАЗМЫ В СОЛНЕЧНОЙ СИСТЕМЕ», 6–10 ФЕВРАЛЯ 2023 г., ИНСТИТУТ КОСМИЧЕСКИХ ИССЛЕДОВАНИЙ РАН, МОСКВА, РОССИЯ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>18TH ANNUAL CONFERENCE “PLASMA PHYSICS IN THE SOLAR SYSTEM”. FEBRUARY 6–10, 2023, SPACE RESEARCH INSTITUTE RAS, MOSCOW, RUSSIA</subject>
    </subj-group>
    <subj-group>
     <subject>ВОСЕМНАДЦАТАЯ ЕЖЕГОДНАЯ КОНФЕРЕНЦИЯ «ФИЗИКА ПЛАЗМЫ В СОЛНЕЧНОЙ СИСТЕМЕ», 6–10 ФЕВРАЛЯ 2023 г., ИНСТИТУТ КОСМИЧЕСКИХ ИССЛЕДОВАНИЙ РАН, МОСКВА, РОССИЯ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Variations in cosmic ray cutoff rigidities during the March 8–11, 2012 magnetic storm (CAWSES II period)</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Изменения жесткостей обрезания космических лучей во время бури 8–11 марта 2012 г в период CAWSES-II</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Данилова</surname>
       <given-names>Ольга Александровна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Danilova</surname>
       <given-names>Olga Aleksandrovna</given-names>
      </name>
     </name-alternatives>
     <email>md1555@mail.ru</email>
     <bio xml:lang="ru">
      <p>кандидат физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Птицына</surname>
       <given-names>Наталья Григорьевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Ptitsyna</surname>
       <given-names>Natalia Grigoryevna</given-names>
      </name>
     </name-alternatives>
     <email>nataliaptitsyna@yandex.ru</email>
     <bio xml:lang="ru">
      <p>кандидат физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Тясто</surname>
       <given-names>Марта Ильинична</given-names>
      </name>
      <name xml:lang="en">
       <surname>Tyasto</surname>
       <given-names>Marta Ilyinichna</given-names>
      </name>
     </name-alternatives>
     <email>mtyasto@mail.ru</email>
     <bio xml:lang="ru">
      <p>доктор физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Сдобнов</surname>
       <given-names>Валерий Евгеньевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Sdobnov</surname>
       <given-names>Valeriy Evgen'evich</given-names>
      </name>
     </name-alternatives>
     <email>sdobnov@iszf.irk.ru</email>
     <bio xml:lang="ru">
      <p>доктор физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Санкт-Петербургский филиал Института земного магнетизма, ионосферы и распространения радиоволн РАН</institution>
     <city>Санкт-Петербург</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">St.-Petersburg Filial of IZMIRAN</institution>
     <city>Saint Petersburg</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Санкт-Петербургский филиал Института земного магнетизма, ионосферы и распространения радиоволн РАН</institution>
     <city>Санкт-Петербург</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">St.-Petersburg Filial of IZMIRAN</institution>
     <city>Saint Petersburg</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Санкт-Петербургский филиал Института земного магнетизма, ионосферы и распространения радиоволн РАН</institution>
     <city>Санкт-Петербург</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">St.-Petersburg Filial of IZMIRAN</institution>
     <city>Saint Petersburg</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Институт солнечно-земной физики СО РАН</institution>
     <city>Иркутск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Solar Terrestrial Physics SB RAS</institution>
     <city>Irkutsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2023-06-29T16:11:28+03:00">
    <day>29</day>
    <month>06</month>
    <year>2023</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2023-06-29T16:11:28+03:00">
    <day>29</day>
    <month>06</month>
    <year>2023</year>
   </pub-date>
   <volume>9</volume>
   <issue>2</issue>
   <fpage>86</fpage>
   <lpage>93</lpage>
   <history>
    <date date-type="received" iso-8601-date="2023-02-22T00:00:00+03:00">
     <day>22</day>
     <month>02</month>
     <year>2023</year>
    </date>
    <date date-type="accepted" iso-8601-date="2023-04-03T00:00:00+03:00">
     <day>03</day>
     <month>04</month>
     <year>2023</year>
    </date>
   </history>
   <self-uri xlink:href="https://naukaru.ru/en/nauka/article/57297/view">https://naukaru.ru/en/nauka/article/57297/view</self-uri>
   <abstract xml:lang="ru">
    <p>Жесткости геомагнитного обрезания космических лучей (КЛ) являются основным фактором, регулирующим приход частиц в данную точку на земной поверхности или внутри магнитосферы. Для изучения связи жесткостей геомагнитного обрезания (геомагнитных порогов) и параметров околоземного пространства выбрана наиболее сильная магнитная буря 8–11 марта 2012 г., которая наблюдалась в интервале CAWSES-II, рекомендованном SCOSTEP для детальных исследований солнечно-земных связей. Геомагнитные пороги были рассчитаны двумя способами: 1) методом траекторных расчетов в магнитном поле возмущенной магнитосферы Цыганенко по модели Ts01; 2) методом спектрографической глобальной съемки по данным мировой сети нейтронных мониторов. Максимальное уменьшение жесткостей геомагнитного обрезания (−1.1 ГВ), полученных вторым методом, наблюдается на восстановительной фазе бури. По-видимому, это связано с влиянием суперсуббурь, которые развивались в это время. Анализ показал, что наиболее сильная связь вариаций жесткости геомагнитного обрезания прослеживается с Dst-индексом геомагнитной активности, что свидетельствует об определяющем вкладе кольцевого тока в перенос КЛ. Кроме того, найдена существенная связь с параметрами электромагнитного поля (с Bz-компонентой межпланетного магнитного поля и азимутальной компонентой электрического поля Ey). Динамические параметры солнечного ветра практически не контролируют вариации жесткостей геомагнитного обрезания КЛ.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The geomagnetic cutoff rigidity of cosmic rays (CRs) is the main factor regulating the arrival of CR particles at a given point on Earth's surface or inside the magnetosphere. To study the relationship between cutoffs and near-Earth space parameters, we have selected the strongest magnetic storm that occurred on March 8–11, 2012 during the CAWSES-II interval, recommended by SCOSTEP for detailed studies of solar-terrestrial relations. We have found the geomagnetic cutoffs by two methods: 1) by trajectory calculations in the magnetic field of the perturbed magnetosphere according to the Ts01 model and 2) by the spectrographic global survey method according to the data from the world network of neutron monitors. The largest drop in the cutoffs (−1.1 GV) obtained by the latter method was observed during the recovery phase of the storm. Apparently, this is due to the influence of the supersubstorms that occurred at that time. The analysis has shown that the closest connection of variations in the cutoffs can be traced with the geomagnetic activity index Dst, which indicates the determining contribution of the ring current to the transport of CRs. In addition, we have found a significant connection with the electromagnetic field parameters (with the Bz component of the interplanetary magnetic field and the azimuthal component of the electric field Ey). The dynamic solar wind parameters practically do not control variations in CR geomagnetic cutoff rigidities.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>геомагнитные пороги</kwd>
    <kwd>жесткости геомагнитного обрезания</kwd>
    <kwd>космические лучи</kwd>
    <kwd>суперсуббури</kwd>
    <kwd>межпланетное магнитное поле</kwd>
    <kwd>индексы геомагнитной активности</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>geomagnetic threshold</kwd>
    <kwd>cosmic rays</kwd>
    <kwd>supersubstorm</kwd>
    <kwd>interplanetary magnetic field</kwd>
    <kwd>geomagnetic activity</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Минобрнауки России</funding-statement>
    <funding-statement xml:lang="en">The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation</funding-statement>
   </funding-group>
  </article-meta>
 </front>
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 <back>
  <ref-list>
   <ref id="B1">
    <label>1.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Данилова О.А., Птицына Н.Г., Тясто М.И., Сдобнов В.E. Возмущенная магнитосфера 7-8 ноября 2004 г. и вариации жесткости обрезания космических лучей: широтные эффекты. Солнечно-земная физика. 2020. Т. 60, № 3. С. 40-47. DOI: 10.12737/szf-63202005.</mixed-citation>
     <mixed-citation xml:lang="en">Adriani O., Barbarino G.C., Bazilevskaya G.N., Bellotti R., et al. PAMELA’s measurements of geomagnetic cutoff variations during the 14 December 2006. Space Weather. 2016, vol. 14, no. 3. DOI: 10.1002/2016SW001364.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B2">
    <label>2.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Дэспирак И.В., Любчич А.А., Клейменова Н.Г. и др. Долготные геомагнитные эффекты суперсуббурь во время магнитной бури 9 марта 2012 г. Известия РАН. Серия физическая. 2021. Т. 85, № 3. С. 346-352. DOI: 10.31857/ S0367676521030108.</mixed-citation>
     <mixed-citation xml:lang="en">Akasofu S.I. Energy coupling between the solar wind and the magnetosphere. Space Sci. Rev. 1981, vol. 28, rr. 121-190. DOI: 10.1007/BF00218810.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B3">
    <label>3.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Птицына Н.Г., Данилова О.А., Тясто М.И., Сдобнов В.Е. Влияние параметров солнечного ветра и геомагнитной активности на вариации жесткости обрезания космических лучей во время сильных магнитных бурь. Геомагнетизм и аэрономия. 2019. Т. 59, № 5. С. 569-577. DOI: 10.1134/ S0016794019050092.</mixed-citation>
     <mixed-citation xml:lang="en">Belov A., Baisultanova L., Eroshenko E., Mavromichalaki H., Yanke V., Pchelkin V., Plainaki, C., Mariatos G. Magnetospheric effects in cosmic rays during the unique magnetic storm on November 2003. J. Geophys. Res. 2005, vol. 110, A09S20. DOI: 10.1029/2005JA011067.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B4">
    <label>4.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Птицына Н.Г., Данилова О.А., Тясто М.И. Корреляция жесткости обрезания космических лучей с параметрами гелиосферы и геомагнитной активности на разных фазах магнитной бури в ноябре 2004 г. Геомагнетизм и аэрономия. 2020. Т. 60, № 3. С. 281-292. DOI: 10.31857/S0016 794020020145.</mixed-citation>
     <mixed-citation xml:lang="en">Borovsky J.E., Birn J. The solar wind electric field does not control the dayside reconnection rate. J. Geophys. Res.: Space Phys. 2014, vol. 119. DOI: 10.1002/2013JA019193.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B5">
    <label>5.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Птицына Н.Г., Данилова О.А., Тясто М.И., Сдобнов В.Е. Динамика жесткости обрезания космических лучей и параметров магнитосферы во время разных фаз бури 20 ноября 2003 г. Геомагнетизм и аэрономия. 2021. Т. 61, № 2. С. 160-171. DOI: 10.31857/S0016794021010120.</mixed-citation>
     <mixed-citation xml:lang="en">Burton R.K., McPherron R.L., Russel C.J. An empirical relationship between interplanetary conditions and Dst. J. Geophys. Res. 1975, vol. 80, rr. 4204-4214.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B6">
    <label>6.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Пчелкин В.В. Влияние магнитосферных суббурь на асимптотические направления прихода релятивистских протонов космических лучей. Геомагнетизм и аэрономия. 2010. Т. 50, № 3. С. 328-333.</mixed-citation>
     <mixed-citation xml:lang="en">Carslaw K.S., Harrison R.G., Kirkby J. Cosmic rays, clouds, and climate. Science. 2002, vol. 298, iss. 5599, rr. 1732-1737. DOI: 10.1126/science.1076964.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B7">
    <label>7.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Adriani O., Barbarino G.C., Bazilevskaya G.N., et al. PAMELA’s measurements of geomagnetic cutoff variations during the 14 December 2006. Space Weather. 2016. Vol. 14, no. 3. DOI: 10.1002/2016SW001364.</mixed-citation>
     <mixed-citation xml:lang="en">Danilova O.A., Ptitsyna N.G., Tyasto M.I., Sdobnov V.E. Disturbed magnetosphere on November 7-8, 2004 and variations of cosmic ray cutoff rigidity: Latitude effects. Solar-Terr. Phys. 2020, vol. 6, iss. 3, pp. 43-50. DOI: 10.12737/stp-63202005.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B8">
    <label>8.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Akasofu S.I. Energy coupling between the solar wind and the magnetosphere. Space Sci. Rev. 1981. Vol. 28. P. 121-190. DOI: 10.1007/BF00218810.</mixed-citation>
     <mixed-citation xml:lang="en">Despirak I.V., Lyubchich A.A., Kleimenova N.G., Gromova L.I., Gromov S.V., Malysheva L.M. Longitude geomagnetic effects of the supersubstorms during the magnetic storm of March 9, 2012. Bull. Russ. Acad. Sci. Phys. 2021, vol. 85, pp. 246-251. DOI: 10.3103/S1062873821030096.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B9">
    <label>9.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Belov A., Baisultanova L., Eroshenko E., et al. Magnetospheric effects in cosmic rays during the unique magnetic storm on November 2003. J. Geophys. Res. 2005. Vol. 110, A09S20. DOI: 10.1029/2005JA011067.</mixed-citation>
     <mixed-citation xml:lang="en">Dorman L.I. Elementary Particle and Cosmic Ray Physics. New York, Elsevier Publ., 1963, 456 p.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B10">
    <label>10.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Borovsky J.E., Birn J. The solar wind electric field does not control the dayside reconnection rate. J. Geophys. Res.: Space Phys. 2014. Vol. 119. DOI: 10.1002/2013JA019193.</mixed-citation>
     <mixed-citation xml:lang="en">Dungey J.W. Interplanetary magnetic field and the auroral zones. Phys. Rev. Lett. 1961, vol. 6, pp. 47-48. DOI: 10.1103/ PhysRevLett.6.47.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B11">
    <label>11.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Burton R.K., McPherron R.L., Russel C.J. An empirical relationship between interplanetary conditions and Dst. J. Geophys. Res. 1975. Vol. 80. P. 4204-4214.</mixed-citation>
     <mixed-citation xml:lang="en">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, iss. 4, pp. 430-440.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B12">
    <label>12.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Carslaw K.S., Harrison R.G., Kirkby J. Cosmic rays, clouds, and climate. Science. 2002. Vol. 298, iss. 5599. P. 1732-1737. DOI: 10.1126/science.1076964.</mixed-citation>
     <mixed-citation xml:lang="en">Kress B.T., Mertens C.J., Wiltberger M. Solar energetic particle cutoff variations during the 29-31 October 2003 geomagnetic storm. Space Weather. 2010, vol. 8, S05001. DOI: 10.1029/2009SW000488.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B13">
    <label>13.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Dorman L.I. Elementary Particle and Cosmic Ray Physics. New York, Elsevier, 1963. 456 p.</mixed-citation>
     <mixed-citation xml:lang="en">Flueckiger E.O., Shea M.A., Smart D.F. On the latitude dependence of cosmic ray cutoff rigidity variations during the initial phase of a geomagnetic storm. Proc. 20th Int. Conf. Cosmic Rays. Moscow, 1987, vol. 4, pp. 2016-2020.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B14">
    <label>14.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Dungey J.W. Interplanetary magnetic field and the auroral zones. Phys. Rev. Lett. 1961. Vol. 6. P. 47-48. DOI: 10.1103/ PhysRevLett.6.47.</mixed-citation>
     <mixed-citation xml:lang="en">Makrantoni P., Mavromichalaki H., Usoskin I., Papaioannou A. Calculation of the cosmic ray induced ionization for the region of Athens. Journal of Physics: Conference Series. 2013, vol. 409, iss. 1, 012232. DOI: 10.1088/1742-6596/409/1/012232.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B15">
    <label>15.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Dvornikov V.M., Kravtsova M.V., Sdobnov V.E. Diagnostics of the electromagnetic characteristics of the interplanetary medium based on cosmic ray effects. Geomagn. Aeron. 2013. Vol. 53, iss. 4. P. 430-440.</mixed-citation>
     <mixed-citation xml:lang="en">Nikolaev A.V., Sergeev V.A., Tsyganenko N.A., Kubyshkina M.V., Opgenoorth H., Singer H., Angelopoulos V. A quantitative study of magnetospheric magnetic field line deformation by a two-loop substorm current wedge. Ann. Geophys. 2015, vol. 33, pp. 505-517. DOI: 10.5194/angeo-33-505-2015.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B16">
    <label>16.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Flueckiger E.O., Shea M.A., Smart D.F. On the latitude dependence of cosmic ray cutoff rigidity variations during the initial phase of a geomagnetic storm. Proc. 20th Int. Conf. Cosmic Rays. Moscow, 1987. Vol. 4. P. 2016-2020.</mixed-citation>
     <mixed-citation xml:lang="en">Pchelkin V.V. Effect of magnetospheric substorms on asymptotic directions of arrival of cosmic ray relativistic protons. Geomagnetism and Aeronomy. 2010, vol. 50, pp. 314-319. DOI: 10.1134/S0016793210030059.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B17">
    <label>17.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Kress B.T., Mertens C.J., Wiltberger M. Solar energetic particle cutoff variations during the 29-31 October 2003 geomagnetic storm. Space Weather. 2010. Vol. 8, S05001. DOI: 10.1029/ 2009SW000488.</mixed-citation>
     <mixed-citation xml:lang="en">Ptitsyna N.G., Danilova O.A., Tyasto M.I., Sdobnov V.E. Influence of the solar wind and geomagnetic activity parameters on variations in the cosmic ray cutoff rigidity during strong magnetic storms. Geomagnetism and Aeronomy. 2019, vol. 59, no. 5, pp. 530-538. DOI: 10.1134/S0016793219050098.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B18">
    <label>18.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Makrantoni P., Mavromichalaki H., Usoskin I., Papaioannou A. Calculation of the cosmic ray induced ionization for the region of Athens. Journal of Physics: Conference Series. 2013. Vol. 409, iss. 1, 012232. DOI: 10.1088/1742-6596/4091/ 012232.</mixed-citation>
     <mixed-citation xml:lang="en">Ptitsyna N.G., Danilova O.A., Tyasto M. I. Correlation of the cosmic-ray cutoff rigidity with heliospheric and geomagnetic-activity parameters at different phases of a magnetic storm in November 2004. Geomagnetism and Aeronomy. 2020, vol. 60, no. 3, pp. 268-278. DOI: 10.1134/S0016793220020139.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B19">
    <label>19.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Nikolaev A.V., Sergeev V.A., Tsyganenko N.A., et al. A quantitative study of magnetospheric magnetic field line deformation by a two-loop substorm current wedge. Ann. Geophys. 2015. Vol. 33. P. 505-517. DOI: 10.5194/angeo-33-505-2015.</mixed-citation>
     <mixed-citation xml:lang="en">Ptitsyna N.G., Danilova O.A., Tyasto M.I., Sdobnov V.E. Dynamics of cosmic-ray cutoff rigidity and magnetospheric parameters during different phases of the storm of November 20, 2003. Geomagnetism and Aeronomy. 2021, vol. 61, no. 2, pp. 169-179. DOI: 10.1134/S0016793221010114.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B20">
    <label>20.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Russell C.T. The solar wind interaction with the Earth’s magnetosphere: A tutorial. IEEE Trans. Plasma Sci. 2000. Vol. 28, no. 6. P. 1818-1830. DOI: 10.1109/27.902211.</mixed-citation>
     <mixed-citation xml:lang="en">Russell C.T. The solar wind interaction with the Earth’s magnetosphere: A tutorial. IEEE Trans. Plasma Sci. 2000, vol. 28, no. 6, pp. 1818-1830. DOI: 10.1109/27.902211.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B21">
    <label>21.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Shea M.A., Smart D.F., McCracken K.G. A study of vertical cutoff rigidities using sixth degree simulations of the geomagnetic field. J. Geophys. Res. 1965. Vol. 70. P. 4117-4130.</mixed-citation>
     <mixed-citation xml:lang="en">Shea M.A., Smart D.F., McCracken K.G. A study of vertical cutoff rigidities using sixth degree simulations of the geomagnetic field. J. Geophys. Res. 1965, vol. 70, pp. 4117-4130.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B22">
    <label>22.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Tsurutani B., Echer E., Shibata K., et al. The interplanetary causes of geomagnetic activity during the 7-17 March 2012 interval: a CAWSES II overview. J. Space Weather Space Climate. 2014. Vol. 4, A02. DOI: 10.1051/swsc/2013056.</mixed-citation>
     <mixed-citation xml:lang="en">Tsurutani B., Echer E., Shibata K., Verkhoglyadova O., Mannucci A., Gonzalez W., Kozyra J., Pätzold M. The interplanetary causes of geomagnetic activity during the 7-17 March 2012 interval: a CAWSES II overview. J. Space Weather Space Clim. 2014, vol. 4, A02. DOI: 10.1051/swsc/2013056.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B23">
    <label>23.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Tsyganenko N.A., Singer H.J., Kasper J.C. Storm-time distortion of the inner magnetosphere: How severe can it get? J. Geophys. Res. 2003. Vol. 108, iss. A5, 1209. DOI: 10.1029/2002JA009808.</mixed-citation>
     <mixed-citation xml:lang="en">Tsyganenko N.A., Singer H.J., Kasper J.C. Storm-time distortion of the inner magnetosphere: How severe can it get? J. Geophys. Res. 2003, vol. 108, iss. A5, 1209. DOI: 10.1029/2002JA009808.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B24">
    <label>24.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">URL: http://www01.nmdb.eu/data (дата обращения 20 февраля 2023 г.).</mixed-citation>
     <mixed-citation xml:lang="en">URL: http://www01.nmdb.eu/data (accessed February 20, 2023).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B25">
    <label>25.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">URL: https://omniweb.gsfc.nasa.gov/form/dx1.html (дата обращения 3 июля 2015 г.).</mixed-citation>
     <mixed-citation xml:lang="en">URL: https://omniweb.gsfc.nasa.gov/form/dx1.html (accessed July 3, 2015).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B26">
    <label>26.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">URL: http://ckp-rf.ru/ckp/3056 (дата обращения 20 февраля 2023 г.).</mixed-citation>
     <mixed-citation xml:lang="en">URL: http://ckp-rf.ru/ckp/3056 (accessed February 20, 2023).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B27">
    <label>27.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">URL: https://ckp-rf.ru/usu/433536 (дата обращения 20 февраля 2023 г.).</mixed-citation>
     <mixed-citation xml:lang="en">URL: https://ckp-rf.ru/usu/433536 (accessed February 20, 2023).</mixed-citation>
    </citation-alternatives>
   </ref>
  </ref-list>
 </back>
</article>
