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  <journal-meta>
   <journal-id journal-id-type="publisher-id">Solnechno-Zemnaya Fizika</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Solnechno-Zemnaya Fizika</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Солнечно-земная физика</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">57385</article-id>
   <article-id pub-id-type="doi">10.12737/szf-92202311</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">Peculiarities of medium parameter dynamics and cosmic ray density in strong Forbush decreases associated with magnetic clouds</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Особенности динамики параметров среды и плотности космических лучей в сильных форбуш-понижениях, связанных с магнитными облаками</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0640-4869</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Петухова</surname>
       <given-names>Анастасия Станиславовна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Petukhova</surname>
       <given-names>Anastasia Stanislavovna</given-names>
      </name>
     </name-alternatives>
     <email>petukhova@ikfia.ysn.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5692-6193</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Петухов</surname>
       <given-names>Иван Станиславович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Petuhov</surname>
       <given-names>Ivan Stanislavovich</given-names>
      </name>
     </name-alternatives>
     <email>i_van@ikfia.ysn.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">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8656-774X</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Петухов</surname>
       <given-names>Станислав Иванович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Petukhov</surname>
       <given-names>Stanislav Ivanovich</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Готовцев</surname>
       <given-names>Илья Сергеевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Gotovtsev</surname>
       <given-names>Ilya Sergeevich</given-names>
      </name>
     </name-alternatives>
     <email>i_gotovtsev@mail.ru</email>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт космофизических исследований и аэрономии им. Ю.Г. Шафера СО РАН</institution>
     <city>Якутск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS</institution>
     <city>Yakutsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт космофизических исследований и аэрономии им. Ю.Г. Шафера СО РАН</institution>
     <city>Якутск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS</institution>
     <city>Yakutsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Институт космофизических исследований и аэрономии им. Ю.Г. Шафера СО РАН</institution>
     <city>Якутск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS</institution>
     <city>Yakutsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Институт космофизических исследований и аэрономии им. Ю.Г. Шафера СО РАН</institution>
     <city>Якутск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS</institution>
     <city>Yakutsk</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>94</fpage>
   <lpage>100</lpage>
   <history>
    <date date-type="received" iso-8601-date="2023-02-28T00:00:00+03:00">
     <day>28</day>
     <month>02</month>
     <year>2023</year>
    </date>
    <date date-type="accepted" iso-8601-date="2023-05-02T00:00:00+03:00">
     <day>02</day>
     <month>05</month>
     <year>2023</year>
    </date>
   </history>
   <self-uri xlink:href="https://naukaru.ru/en/nauka/article/57385/view">https://naukaru.ru/en/nauka/article/57385/view</self-uri>
   <abstract xml:lang="ru">
    <p>Диффузионный и электромагнитный механизмы определяют формирование спорадических форбуш-понижений (ФП). Диффузионный механизм влияет на амплитуду ФП (Aфᴨ) в турбулентном слое и части коронального выброса массы (КВМ), предшествующей магнитному облаку, и его эффективность зависит от уровня турбулентности магнитного поля. Электромагнитный механизм работает в магнитном облаке, и его эффективность зависит от напряженности регулярных магнитных и электрических полей. Мы анализируем параметры солнечного ветра и характеристики космических лучей, применяя метод наложенных эпох.&#13;
В 1996–2006 гг. было зарегистрировано 23 сильных ФП (Aфп&gt;5 %). Средняя амплитуда 7 % в равной степени формируется обоими механизмами. События можно разделить на две группы в зависимости от вклада механизмов в амплитуду ФП. Группа 1 включает самые сильные ФП (Aфп1=8.5 %), образованные как диффузионным, так и электромагнитным механизмами: диффузионный механизм отвечает за 0.26Aфп1, а электромагнитный — за 0.74Aфп1. В группе 2 амплитуда Aфп2 составляет 5.7 %, причем диффузионный механизм формирует 0.79Aфп2, а электромагнитный — 0.21Aфп2. Пространственные распределения средних значений параметров среды в области возмущений в группах 1 и 2 различаются. Это различие может быть объяснено тем фактом, что ФП в группах 1 и 2 формируются в центральной и периферийной частях КВМ соответственно.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Diffusion and electromagnetic mechanisms determine the formation of sporadic Forbush decreases. The diffusion mechanism affects the Forbush decrease amplitude in the turbulent layer, and the part of the coronal mass ejection preceding the magnetic cloud, and its efficiency depends on the level of magnetic field turbulence. The electromagnetic mechanism works in a magnetic cloud, and its efficiency depends on the intensity of regular magnetic and electric fields. We analyze solar wind parameters and cosmic ray density, using the superposed epoch analysis. In 1996–2006, 23 strong Forbush decreases (amplitude &gt;5 %) were detected. The average amplitude of 7 % is equally formed by both mechanisms. The events can be divided into 2 groups depending on the contribution of the mechanisms to Forbush decrease amplitude. Group 1 includes the strongest Forbush decreases (amplitude=8.5 %), formed by both diffusion and electromagnetic mechanisms. The diffusion mechanism forms 0.26 amplitude, and the electromagnetic mechanism is responsible for 0.74 one. In group 2, the averege amplitude Forbush decrease =5.7 %, the diffusion mechanism forms 0.79 of amplitude; and the electromagnetic one, 0.21. The spatial distributions of the mean values of the medium parameters in the region of disturbances in the groups differ. This difference can be explained by the fact that Forbush decrease amplitude in groups 1 and 2 are formed in the central and peripheral parts of coronal mass ejection respectively.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>космические лучи</kwd>
    <kwd>выброс корональной массы</kwd>
    <kwd>форбуш-понижение</kwd>
    <kwd>солнечный ветер</kwd>
    <kwd>межпланетное магнитное поле</kwd>
    <kwd>ударная волна</kwd>
    <kwd>магнитное облако</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>cosmic rays</kwd>
    <kwd>coronal mass ejection</kwd>
    <kwd>Forbush decrease</kwd>
    <kwd>solar wind</kwd>
    <kwd>interplanetary magnetic field</kwd>
    <kwd>shock</kwd>
    <kwd>magnetic cloud</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа проводится при поддержке Министерства образования и науки Российской Федерации (проект FWRS-2021-0012)</funding-statement>
    <funding-statement xml:lang="en">The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation (Project FWRS-2021-0012)</funding-statement>
   </funding-group>
  </article-meta>
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