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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Earth Sciences</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Earth Sciences</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Russian Journal of Earth Sciences</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">1681-1208</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">71113</article-id>
   <article-id pub-id-type="doi">10.2205/2023ES000889</article-id>
   <article-id pub-id-type="edn">phvzcv</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>ORIGINAL ARTICLES</subject>
    </subj-group>
    <subj-group>
     <subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Regression Derivatives and Their Application in the Study of Magnetic Storms</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Regression Derivatives and Their Application in the Study of Magnetic Storms</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/0000-0003-3710-1246</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Агаян</surname>
       <given-names>Сергей Мартикович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Agayan</surname>
       <given-names>S M</given-names>
      </name>
     </name-alternatives>
     <email>s.agayan@gcras.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3171-5768</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Богоутдинов</surname>
       <given-names>Шамиль Рафекович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Bogoutdinov</surname>
       <given-names>Shamil Rafekovich</given-names>
      </name>
     </name-alternatives>
     <email>shm@gcras.ru</email>
     <xref ref-type="aff" rid="aff-2"/>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2615-4326</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Сидоров</surname>
       <given-names>Роман Викторович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Sidorov</surname>
       <given-names>Roman Viktorovich</given-names>
      </name>
     </name-alternatives>
     <email>r.sidorov@gcras.ru</email>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6476-9471</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Соловьев</surname>
       <given-names>Анатолий Александрович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Soloviev</surname>
       <given-names>Anatoly A</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-5"/>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9287-8042</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Камаев</surname>
       <given-names>Дмитрий Альфредович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Kamaev</surname>
       <given-names>Dmitry Al'fredovich</given-names>
      </name>
     </name-alternatives>
     <email>post@typhoon.obninsk.ru</email>
     <xref ref-type="aff" rid="aff-7"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Алексанян</surname>
       <given-names>Андрон Олегович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Aleksanyan</surname>
       <given-names>Andron Olegovich</given-names>
      </name>
     </name-alternatives>
     <email>a.alexanyan@itresume.ru</email>
     <xref ref-type="aff" rid="aff-8"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3427-0634</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Дзеранов</surname>
       <given-names>Борис Витальевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Dzeranov</surname>
       <given-names>B. V.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-9"/>
     <xref ref-type="aff" rid="aff-10"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Геофизический центр Российской Академии Наук</institution>
     <country>RU</country>
    </aff>
    <aff>
     <institution xml:lang="en">Geophysical Center of the Russian Academy of Sciences</institution>
     <country>RU</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Геофизический центр РАН</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Geophysical Center RAS</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Институт физики Земли им. О. Ю. Шмидта РАН</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Schmidt institute of physics of the Earth of the RAS</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Геофизический центр РАН</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Geophysical Center RAS</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Геофизический центр РАН</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Geophysical Center RAS</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Институт физики Земли им. О. Ю. Шмидта РАН</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Schmidt institute of physics of the Earth of the RAS</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-7">
    <aff>
     <institution xml:lang="ru">НПО &quot;Тайфун&quot;</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">RPA “Typhoon”</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-8">
    <aff>
     <institution xml:lang="ru">Обнинский институт атомной энергетики</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Obninsk Institute for Nuclear Power Engineering</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-9">
    <aff>
     <institution xml:lang="ru">Геофизический центр Российской Академии Наук</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Geophysical Center of the Russian Academy of Sciences</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-10">
    <aff>
     <institution xml:lang="ru">Владикавказский научный центр РАН</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Vladikavkaz Scientific Center RAS</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2023-12-30T00:00:00+03:00">
    <day>30</day>
    <month>12</month>
    <year>2023</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2023-12-30T00:00:00+03:00">
    <day>30</day>
    <month>12</month>
    <year>2023</year>
   </pub-date>
   <volume>23</volume>
   <issue>6</issue>
   <fpage>1</fpage>
   <lpage>22</lpage>
   <history>
    <date date-type="received" iso-8601-date="2023-10-25T00:00:00+03:00">
     <day>25</day>
     <month>10</month>
     <year>2023</year>
    </date>
    <date date-type="accepted" iso-8601-date="2023-12-28T00:00:00+03:00">
     <day>28</day>
     <month>12</month>
     <year>2023</year>
    </date>
   </history>
   <self-uri xlink:href="https://rjes.ru/en/nauka/article/71113/view">https://rjes.ru/en/nauka/article/71113/view</self-uri>
   <abstract xml:lang="ru">
    <p>Discrete Mathematical Analysis (DMA) is a data analysis method that uses fuzzy mathematics and fuzzy logic. DMA involves the active participation of the researcher in the study of records, offering technologies and algorithms for analyzing records through the properties of interest to the researcher. In the present work, such properties are related to regression derivatives, and the results obtained are applied to magnetic records. The possibilities of the method in the morphological analysis of geomagnetic storms are demonstrated on the example of three strongest storms that have occurred since the beginning of the current 25th solar cycle.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Discrete Mathematical Analysis (DMA) is a data analysis method that uses fuzzy mathematics and fuzzy logic. DMA involves the active participation of the researcher in the study of records, offering technologies and algorithms for analyzing records through the properties of interest to the researcher. In the present work, such properties are related to regression derivatives, and the results obtained are applied to magnetic records. The possibilities of the method in the morphological analysis of geomagnetic storms are demonstrated on the example of three strongest storms that have occurred since the beginning of the current 25th solar cycle.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>Proximity measure</kwd>
    <kwd>regression derivation</kwd>
    <kwd>regression smoothing</kwd>
    <kwd>measures of activity. multi-scale measures of activitys</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>Proximity measure</kwd>
    <kwd>regression derivation</kwd>
    <kwd>regression smoothing</kwd>
    <kwd>measures of activity. multi-scale measures of activitys</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="en">This work was conducted in the framework of budgetary funding of the Geophysical Center of RAS, adopted by the Ministry of Science and Higher Education of the Russian Federation (grant number 075-00443-24-00). The results presented in this paper rely on data collected at magnetic observatories. We thank the national institutes that support them and INTERMAGNET for promoting high standards of magnetic observatory practice (http://www.intermagnet.org/). This work employed facilities and data provided by the Shared Research Facility “Analytical Geomagnetic Data Center” of the Geophysical Center of RAS (http://ckp.gcras.ru/).</funding-statement>
   </funding-group>
  </article-meta>
 </front>
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