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 <front>
  <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">84383</article-id>
   <article-id pub-id-type="doi">10.12737/szf-104202412</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Результаты  исследований</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Results of current research</subject>
    </subj-group>
    <subj-group>
     <subject>Результаты  исследований</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Spatial distribution of auroral precipitation and failures in railway automatics at the north of European Russia</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Пространственное распределение авроральных высыпаний и сбоев в работе железнодорожной автоматики на севере европейской части России</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Сахаров</surname>
       <given-names>Ярослав Алексеевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Sakharov</surname>
       <given-names>Yaroslav Alekseevich</given-names>
      </name>
     </name-alternatives>
     <email>sakharov@pgia.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"/>
     <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/0000-0003-0678-8743</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ягова</surname>
       <given-names>Надежда Викторовна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Yagova</surname>
       <given-names>Nadezda Viktorovna</given-names>
      </name>
     </name-alternatives>
     <email>nyagova@ifz.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-4"/>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3056-7465</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Пилипенко</surname>
       <given-names>Вячеслав Анатольевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Pilipenko</surname>
       <given-names>Vyacheslav Anatolievich</given-names>
      </name>
     </name-alternatives>
     <email>space.soliton@gmail.com</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-6"/>
     <xref ref-type="aff" rid="aff-7"/>
     <xref ref-type="aff" rid="aff-8"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ягодкина</surname>
       <given-names>Оксана Ивановна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Yagodkina</surname>
       <given-names>Oksana Ivanovna</given-names>
      </name>
     </name-alternatives>
     <email>yagodkina@pgia.ru</email>
     <xref ref-type="aff" rid="aff-9"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Гаранин</surname>
       <given-names>Сергей Львович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Garanin</surname>
       <given-names>Sergey Lvovich</given-names>
      </name>
     </name-alternatives>
     <email>lvovi4s@icloud.com</email>
     <xref ref-type="aff" rid="aff-10"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Полярный Геофизический Институт</institution>
     <city>Апатиты</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Polar Geophysical Institute</institution>
     <city>Apatity</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Центр физико-технических проблем энергетики Севера КНЦ РАН</institution>
     <city>Апатиты</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Nothern Energetics Research Centre KSC RAS</institution>
     <city>Apatity</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Геофизический центр РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Geophysical Center of the Russian Academy of Sciences</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Институт физики Земли им. О.Ю. Шмидта РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Schmidt Institute of Physics of the Earth RAS</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Геофизический центр РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Geophysical Center of the Russian Academy of Sciences</institution>
     <city>Moscow</city>
     <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>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Schmidt Institute of Physics of the Earth RAS</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-7">
    <aff>
     <institution xml:lang="ru">Геофизический центр РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Geophysical Center RAS</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-8">
    <aff>
     <institution xml:lang="ru">Институт космических исследований</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Space Research Institute</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-9">
    <aff>
     <institution xml:lang="ru">Полярный геофизический институт</institution>
     <city>Апатиты</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Polar Geophysical Institute</institution>
     <city>Apatity</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-10">
    <aff>
     <institution xml:lang="ru">Институт геохимии и аналитической химии им. В.И. Вернадского РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Vernadsky Institute of Geochemistry and Analytical Chem-istry of RAS</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2024-12-18T06:21:08+03:00">
    <day>18</day>
    <month>12</month>
    <year>2024</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2024-12-18T06:21:08+03:00">
    <day>18</day>
    <month>12</month>
    <year>2024</year>
   </pub-date>
   <volume>10</volume>
   <issue>4</issue>
   <fpage>114</fpage>
   <lpage>121</lpage>
   <history>
    <date date-type="received" iso-8601-date="2024-06-21T00:00:00+03:00">
     <day>21</day>
     <month>06</month>
     <year>2024</year>
    </date>
    <date date-type="accepted" iso-8601-date="2024-08-19T00:00:00+03:00">
     <day>19</day>
     <month>08</month>
     <year>2024</year>
    </date>
   </history>
   <self-uri xlink:href="https://naukaru.ru/en/nauka/article/84383/view">https://naukaru.ru/en/nauka/article/84383/view</self-uri>
   <abstract xml:lang="ru">
    <p>Исследована связь между возмущениями космической погоды и пространственным распределением сбоев в работе железнодорожной автоматики на участках Северной и Октябрьской железных дорог в 2001–2006 гг. Во время наиболее сильных магнитных бурь, вызвавших многочисленные сбои, рассматриваются широтное распределение потока энергии авроральных электронов и локальная геомагнитная возмущенность, определенная как среднее значение модуля производной по времени горизонтальной компоненты геомагнитного поля |dBΗ/dt|. Показано, что на главной и восстановительной фазах магнитных бурь участки, на которых наблюдались сбои, попадали в область интенсивных авроральных высыпаний, а значение |dBH/dt| превышало 5 нТл/с. Связь между положением экваториальной границы аврорального овала и пространственным распределением сбоев рассматривается как во время отдельных магнитных бурь, так и статистически за пять лет наблюдений. И отдельные события, и статистические тесты показывают, что смещение к югу экваториальной границы аврорального овала коррелирует с ростом доли сбоев на более низкоширотных участках железных дорог, соответствующих субавроральным геомагнитным широтам.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>We study the relationship between space weather disturbances and spatial distribution of failures in railway automatics at segments of Northern and October railways in 2001–2006. During the most intensive magnetic storms that caused numerous failures, latitude distribution of auroral electron precipitation and local geomagnetic disturbance, determined as mean absolute value of time derivative of the geomagnetic field horizontal component |dBH/dt|, are examined. We show that in magnetic storm main and recovery phases the segments, where the failures were recorded, correspond to the region of intense auroral precipitation and |dBH/dt| exceeded 5 nT/s. The relationship between position of auroral oval equatorial boundary and spatial distribution of failures is analyzed for individual magnetic storms and statistically for five years of observations. Both individual cases and statistic tests show that southward displacement of the auroral oval equatorial boundary correlates with increase in the proportion of failures at lower latitude railway segments.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>космическая погода</kwd>
    <kwd>магнитные бури</kwd>
    <kwd>авроральный овал</kwd>
    <kwd>железные дороги</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>space weather</kwd>
    <kwd>magnetic storms</kwd>
    <kwd>auroral oval</kwd>
    <kwd>railways</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа поддержана грантом РНФ № 21-77-30010</funding-statement>
    <funding-statement xml:lang="en">The work was financially supported by RSF Grant No. 21-77-30010</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">Воробьев В.Г., Ягодкина О.И. Влияние магнитной активности на глобальное распределение зон авроральных вторжений. Геомагнетизм и аэрономия. 2005. Т. 45. С. 467–473.</mixed-citation>
     <mixed-citation xml:lang="en">Akasofu S.I. Interplanetary energy flux associated with magnetospheric substorms. Planet. Space Sci. 1979, vol. 27, pp. 425–431.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B2">
    <label>2.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Воробьев В.Г., Громова Л.И., Реженов Б.В. и др. Вариации положения границ плазменных вторжений и аврорального свечения в ночном секторе. Геомагнетизм и аэрономия. 2000. Т. 40, № 3. С. 79–85.</mixed-citation>
     <mixed-citation xml:lang="en">Beggan C. Sensitivity of geomagnetically induced currents to varying auroral electrojet and conductivity models. Earth Planet Space. 2015, vol. 67, 24. DOI: 10.1186/s40623-014-0168-9.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B3">
    <label>3.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Касинский В.В., Птицына Н.Г., Ляхов Н.Н. и др. Влияние геомагнитных возмущений на работу железнодорожной автоматики и телемеханики. Геомагнетизм и аэрономия. 2007. Т. 47. С. 714–718.</mixed-citation>
     <mixed-citation xml:lang="en">Boteler D.H. Modeling geomagnetic interference on railway signaling track circuits. Space Weather. 2021, vol. 19, e2020SW002609. DOI: 10.1029/2020SW002609.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B4">
    <label>4.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Кобзарь А.И. Прикладная математическая статистика. М.: Физматлит, 2006. 816 c.</mixed-citation>
     <mixed-citation xml:lang="en">Chisham G., Burrell A.G., Thomas E.G., Chen Y.-J. Ionospheric boundaries derived from auroral images. J. Geophys. Res.: Space Phys. 2022, vol. 127, e2022JA030622. DOI: 10.1029/2022JA030622.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B5">
    <label>5.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Костроминов А.М., Ложкин Р.О. Влияние геоиндуцированных токов на дроссель-трансформаторы рельсовых цепей железнодорожной автоматики. Известия Петербургского университета путей сообщения. 2021. Т. 18. С. 222–228. DOI: 10.20295/1815-588X-2021-2-222-228.</mixed-citation>
     <mixed-citation xml:lang="en">Eroshenko E.A., Belov A.V., Boteler D., Gaidash S.P., Lobkov S.L., Pirjola R., Trichtchenko L. Effects of strong geomagnetic storms on Northern railways in Russia. Adv. Space Res. 2010, vol. 46, pp. 1102–1110. DOI: 10.1016/j.asr.2010.05.017.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B6">
    <label>6.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Пилипенко В.А., Черников А.А., Соловьев А.А. и др. Влияние космической погоды на надежность функционирования транспортных систем на высоких широтах. Russian Journal of Earth Sciences. 2023. Т. 23, ES2008. DOI: 10.2205/2023ES000824.</mixed-citation>
     <mixed-citation xml:lang="en">Feldstein Y.I. On morphology and auroral and magnetic disturbances at high latitudes. Geomagnetism and Aeronomy. 1963, vol. 3, pp. 138–149.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B7">
    <label>7.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Сахаров Я.А., Ягова Н.В., Пилипенко В.А. Геомагнитные пульсации Pc5/Pi3 и геоиндуцированные токи. Известия Российской академии наук. Серия физическая. 2021. Т. 85. С. 445–450. DOI: 10.31857/s0367676521030236.</mixed-citation>
     <mixed-citation xml:lang="en">Holzworth R.H., Meng C.-I. Mathematical representation of the auroral oval. Geophys. Res. Lett. 1975, vol. 2, pp. 377–380. DOI: 10.1029/GL002i009p00377.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B8">
    <label>8.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Фельдштейн Я.И. Некоторые вопросы морфологии полярных сияний и магнитных возмущений в высоких широтах. Геомагнетизм и аэрономия. 1963. Т. 3, № 2. С. 227–239.</mixed-citation>
     <mixed-citation xml:lang="en">Hu Z.-J., Yang Q.-J., Liang J.-M., Hu H.-Q., Zhang B.-C., Yang H.-G. Variation and modeling of ultraviolet auroral oval boundaries associated with interplanetary and geomagnetic parameters. Space Weather. 2017, vol. 15, pp. 606–622. DOI: 10.1002/2016SW001530.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B9">
    <label>9.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ягова Н.В., Розенберг И.Н., Гвишиани А.Д. и др. Исследование влияния геомагнитной активности на функционирование систем железнодорожной автоматики в Арктической зоне России. Арктика: экология и экономика. 2023. Т. 13. С. 341–352. DOI: 10.25283/2223-4594-2023-3-341-352.</mixed-citation>
     <mixed-citation xml:lang="en">Hu Z.-J., Han B., Zhang Y., Lian H., Wang P., Li G., et al. Modeling of ultraviolet aurora intensity associated with interplanetary and geomagnetic parameters based on neural networks. Space Weather. 2021, vol. 19, e2021SW002751. DOI: 10.1029/2021SW002751.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B10">
    <label>10.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Akasofu S.I. Interplanetary energy flux associated with magnetospheric substorms. Planet. Space Sci. 1979. Vol. 27. P. 425–431.</mixed-citation>
     <mixed-citation xml:lang="en">Kasinskii V.V., Lyahov N.N., Ptitsyna N.G., Tyasto M.I., Villoresi G., Iucci N. Effect of geomagnetic disturbances on the operation of railroad automated mechanics and telemechanics. Geomagnetism and Aeronomy. 2007, vol. 47, pp. 676–680.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B11">
    <label>11.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Beggan C. Sensitivity of geomagnetically induced currents to varying auroral electrojet and conductivity models. Earth Planet Space. 2015. Vol. 67, 24. DOI: 10.1186/s40623-014-0168-9.</mixed-citation>
     <mixed-citation xml:lang="en">Kleimenova N.G., Kozyreva O.V., Manninen J., Ranta A. Unusual strong quasi-monochromatic ground Pc5 geomagnetic pulsations in the recovery phase of November 2003 superstorm. Ann. Geophys. 2005, vol. 23, pp. 2621–2634. DOI: 10.5194/angeo-23-2621-2005.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B12">
    <label>12.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Boteler D.H. Modeling geomagnetic interference on railway signaling track circuits. Space Weather. 2021. Vol. 19, e2020SW002609. DOI: 10.1029/2020SW002609.</mixed-citation>
     <mixed-citation xml:lang="en">Kobzar A.I. Prikladnaya matematicheskaya statistika [Applied Mathematical Statistics]. Moscow, Fizmatlit Publ., 2006, 816 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B13">
    <label>13.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Chisham G., Burrell A.G., Thomas E.G., Chen Y.-J. Ionospheric boundaries derived from auroral images. J. Geophys. Res.: Space Phys. 2022. Vol. 127, e2022JA030622. DOI: 10.1029/2022JA030622.</mixed-citation>
     <mixed-citation xml:lang="en">Kostrominov A.M., Lozhkin R.O. Influence of geoinduced currents on impedance bonds with secondary windings used in railway automation circuits. [Izvestiya Peterburgskogo universiteta putei soobshcheniya] [Proceedings of Petersburg Transport University]. 2021, vol. 18, pp. 222–228. DOI: 10.20295/1815-588X-2021-2-222-228. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B14">
    <label>14.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Eroshenko E.A., Belov A.V., Boteler D., et al. Effects of strong geomagnetic storms on Northern railways in Russia. Adv. Space Res. 2010. Vol. 46. P. 1102–1110. DOI: 10.1016/j.asr.2010.05.017.</mixed-citation>
     <mixed-citation xml:lang="en">Love J.J., Hayakawa H., Cliver E.W. Intensity and impact of the New York Railroad superstorm of May 1921. Space Weather. 2019, vol. 17, pp. 1281–1292. DOI: 10.1029/2019SW002250.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B15">
    <label>15.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Holzworth R.H., Meng C.-I. Mathematical representation of the auroral oval. Geophys. Res. Lett. 1975. Vol. 2. P. 377–380. DOI: 10.1029/GL002i009p00377.</mixed-citation>
     <mixed-citation xml:lang="en">Manninen J., Kleimenova N.G., Kozyreva O.V., Ranta A., Kauristie K., Mäkinen S., Kornilova T.A. Ground-based observations during the period between two strong November 2004 storms attributed to steady magnetospheric convection. J. Geophys. Res. 2008, vol. 113, A00A09. DOI: 10.1029/2007JA 012984.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B16">
    <label>16.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Hu Z.-J., Yang Q.-J., Liang J.-M., et al. Variation and modeling of ultraviolet auroral oval boundaries associated with interplanetary and geomagnetic parameters. Space Weather. 2017. Vol. 15. P. 606–622. DOI: 10.1002/2016SW001530.</mixed-citation>
     <mixed-citation xml:lang="en">Milan S.E. Both solar wind-magnetosphere coupling and ring current intensity control of the size of the auroral oval. Geophys. Res. Lett. 2009, vol. 36, L18101. DOI: 10.1029/2009GL039997.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B17">
    <label>17.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Hu Z.-J., Han B., Zhang Y., et al. Modeling of ultraviolet aurora intensity associated with interplanetary and geomagnetic parameters based on neural networks. Space Weather. 2021. Vol. 19, e2021SW002751. DOI: 10.1029/2021SW002751.</mixed-citation>
     <mixed-citation xml:lang="en">Newell P.T., Sotirelis T., Ruohoniemi J.M., Carbary J.F., Liou K., Skura J.P., Meng C.-I., Deehr C., Wilkinson D., Rich F.J. OVATION: Oval variation, assessment, tracking, intensity, and online nowcasting. Ann. Geophys. 2002, vol. 20, pp. 1039–1047. DOI: 10.5194/angeo-20-1039-2002.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B18">
    <label>18.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Kleimenova N.G., Kozyreva O.V., Manninen J., Ranta A. Unusual strong quasi-monochromatic ground Pc5 geomagnetic pulsations in the recovery phase of November 2003 superstorm. Ann. Geophys. 2005. Vol. 23. P. 2621–2634. DOI: 10.5194/angeo-23-2621-2005.</mixed-citation>
     <mixed-citation xml:lang="en">Ohma A., Laundal K.M., Madelaire M., Hatch S.M., Gasparini S., Reistad J.P., et al. Robust estimates of spatiotemporal variations in the auroral boundaries derived from global UV imaging. J. Geophys. Res.: Space Phys. 2024, vol. 129, e2023JA032021. DOI: 10.1029/2023JA032021.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B19">
    <label>19.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Love J.J., Hayakawa H., Cliver E.W. Intensity and impact of the New York railroad superstorm of May 1921. Space Weather. 2019. Vol. 17. P. 1281–1292. DOI: 10.1029/2019SW002250.</mixed-citation>
     <mixed-citation xml:lang="en">Patterson C.J., Wild J.A., Boteler D.H. Modeling the impact of geomagnetically induced currents on electrified railway signaling systems in the United Kingdom. Space Weather. 2023a, vol. 21, e2022SW003385. DOI: 10.1029/2022SW003385.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B20">
    <label>20.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Manninen J., Kleimenova N.G., Kozyreva O.V., et al. Ground-based observations during the period between two strong November 2004 storms attributed to steady magnetospheric convection. J. Geophys. Res. 2008. Vol. 113, A00A09. DOI: 10.1029/2007JA012984.</mixed-citation>
     <mixed-citation xml:lang="en">Patterson C.J., Wild J.A., Boteler D.H. Modeling “wrong side” failures caused by geomagnetically induced currents in electrified railway signaling systems in the UK. Space Weather. 2023b, vol. 21, e2023SW003625. DOI: 10.1029/2023SW003625.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B21">
    <label>21.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Milan S.E. Both solar wind-magnetosphere coupling and ring current intensity control of the size of the auroral oval. Geophys. Res. Lett. 2009. Vol. 36, L18101. DOI: 10.1029/2009GL039997.</mixed-citation>
     <mixed-citation xml:lang="en">Pilipenko V.A., Chernikov A.A., Soloviev A.A., Yagova N.V., Sakharov Ya.A., Kostarev D.V., et al. Influence of space weather on the reliability of the transport system functioning at high latitudes. Russian Journal of Earth Sciences. 2023, vol. 23, ES2008. DOI: 10.2205/2023ES000824. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B22">
    <label>22.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Newell P.T., Sotirelis T., Ruohoniemi J.M., et al. OVATION: Oval variation, assessment, tracking, intensity, and online nowcasting. Ann. Geophys. 2002. Vol. 20. P. 1039–1047. DOI: 10.5194/angeo-20-1039-2002.</mixed-citation>
     <mixed-citation xml:lang="en">Ptitsyna N.G., Kasinskii V.V., Villoresi G., Lyahov N.N., Dorman L.I., Iucci N. Geomagnetic effects on mid-latitude railways: A statistical study of anomalies in the operation of signaling and train control equipment on the East-Siberian Railway. Adv. Space Res. 2008, vol. 42, pp. 1510–514. DOI: 10.1016/j.asr.2007.10.015.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B23">
    <label>23.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ohma A., Laundal K.M., Madelaire M., et al. Robust estimates of spatiotemporal variations in the auroral boundaries derived from global UV imaging. J. Geophys. Res.: Space Phys. 2024. Vol. 129, e2023JA032021. DOI: 10.1029/2023JA032021.</mixed-citation>
     <mixed-citation xml:lang="en">Qian X., Tian H., Yin Y., Li Y., Liu M., Jiang Z. Geomagnetic Storms’ Influence on Intercity Railway Track Circuit. Urban Rail Transit. 2016, vol. 2, pp. 85–91. DOI: 10.1007/s40864-016-0040-2.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B24">
    <label>24.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Patterson C.J., Wild J.A., Boteler D.H. Modeling the impact of geomagnetically induced currents on electrified railway signaling systems in the United Kingdom. Space Weather. 2023a. Vol. 21, e2022SW003385. DOI: 10.1029/2022SW003385.</mixed-citation>
     <mixed-citation xml:lang="en">Sakharov Y.A., Yagova N.V., Pilipenko V.A. Pc5/Pi3 geomagnetic pulsations and geomagnetically induced currents. Bull. Russian Acad. Sci. Phys. 2021, vol. 85, pp. 329–333. DOI: 10.3103/S1062873821030217.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B25">
    <label>25.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Patterson C.J., Wild J.A., Boteler D.H. Modeling “wrong side” failures caused by geomagnetically induced currents in electrified railway signaling systems in the UK. Space Weather. 2023b. Vol. 21, e2023SW003625. DOI: 10.1029/2023 SW003625.</mixed-citation>
     <mixed-citation xml:lang="en">Viljanen A., Nevanlinna H., Pajunpaa K., Pulkkinen A. Time derivative of the horizontal geomagnetic field as an activity indicator. Ann. Geophys. 2001, vol. 19, pp. 1107–1118. DOI: 10.5194/angeo-19-1107-2001.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B26">
    <label>26.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ptitsyna N.G., Kasinskii V.V., Villoresi G., et al. Geomagnetic effects on mid-latitude railways: A statistical study of anomalies in the operation of signaling and train control equipment on the East-Siberian Railway. Adv. Space Res. 2008. Vol. 42. P. 1510–514. DOI: 10.1016/j.asr.2007.10.015.</mixed-citation>
     <mixed-citation xml:lang="en">Viljanen A., Tanskanen E.I., Pulkkinen A. Relation between substorm characteristics and rapid temporal variations of the ground magnetic field. Ann. Geophys. 2006, vol. 24, pp. 725–733. DOI: 10.5194/angeo-24-725-2006.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B27">
    <label>27.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Qian X., Tian H., Yin Y., et al. Geomagnetic storms’ influence on intercity railway track circuit. Urban Rail Transit. 2016. Vol. 2. P. 85–91. DOI: 10.1007/s40864-016-0040-2.</mixed-citation>
     <mixed-citation xml:lang="en">Vorobjev V.G., Rezhenov B.V., Starkov G.V., Gromova L.I., Feldstein Ya.I. Variations of the boundaries of plasma precipitation and auroral luminosity in the nighttime sector. Geomagnetism and Aeronomy. 2000, vol. 40, pp. 344–350.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B28">
    <label>28.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Viljanen A., Nevanlinna H., Pajunpaa K., Pulkkinen A. Time derivative of the horizontal geomagnetic field as an activity indicator. Ann. Geophys. 2001. Vol. 19. P. 1107–1118. DOI: 10.5194/angeo-19-1107-2001.</mixed-citation>
     <mixed-citation xml:lang="en">Vorobjev V.G., Yagodkina O.I. Effect of geomagnetic activity on the global distribution of auroral precipitation zones. Geomagnetism and Aeronomy. 2005, vol. 45, pp. 438–444.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B29">
    <label>29.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Viljanen A., Tanskanen E.I., Pulkkinen A. Relation between substorm characteristics and rapid temporal variations of the ground magnetic field. Ann. Geophys. 2006. Vol. 24. P. 725–733. DOI: 10.5194/angeo-24-725-2006.</mixed-citation>
     <mixed-citation xml:lang="en">Vorobjev V.G., Yagodkina O.I., Katkalov Y. Auroral precipitation model and its applications to ionospheric and magnetospheric studies. J. Atmos. Solar-Terr. Phys. 2013, vol. 102, pp. 157–171. DOI: 10.1016/j.jastp.2013.05.007.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B30">
    <label>30.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Vorobjev V.G., Yagodkina O.I., Katkalov Y. Auroral precipitation model and its applications to ionospheric and magnetospheric studies. J. Atmos. Solar-Terr. Phys. 2013. Vol. 102. P. 157–171. DOI: 10.1016/j.jastp.2013.05.007.</mixed-citation>
     <mixed-citation xml:lang="en">Wik M., Viljanen A., Pirjola R., Pulkkinen A., Wintoft P., Lundstedt H. Calculation of geomagnetically induced currents in the 400 kV power grid in Southern Sweden. Space Weather. 2008, vol. 6, S07005. DOI: 10.1029/2007SW000343.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B31">
    <label>31.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Wik M., Viljanen A., Pirjola R., et al. Calculation of geomagnetically induced currents in the 400 kV power grid in southern Sweden. Space Weather. 2008. Vol. 6, S07005. DOI: 10.1029/2007SW000343.</mixed-citation>
     <mixed-citation xml:lang="en">Wik M., Pirjola R., Lundstedt H., Viljanen A., Wintoft P., Pulkkinen A. Space weather events in July 1982 and October 2003 and the effects of geomagnetically induced currents on Swedish technical systems. Ann. Geophys. 2009, vol. 27, pp. 1775–1787. DOI: 10.5194/angeo-27-1775-2009.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B32">
    <label>32.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Wik M., Pirjola R., Lundstedt H., et al. Space weather events in July 1982 and October 2003 and the effects of geomagnetically induced currents on Swedish technical systems. Ann. Geophys. 2009. Vol. 27. P. 1775–1787. DOI: 10.5194/angeo-27-1775-2009.</mixed-citation>
     <mixed-citation xml:lang="en">Wintoft P., Viljanen A., Wik M. Extreme value analysis of the time derivative of the horizontal magnetic field and computed electric field. Ann. Geophys. 2016, vol. 34, pp. 485–491. DOI: 10.5194/angeo-34-485-2016.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B33">
    <label>33.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Wintoft P., Viljanen A., Wik M. Extreme value analysis of the time derivative of the horizontal magnetic field and computed electric field. Ann. Geophys. 2016. Vol. 34. P. 485–491. DOI: 10.5194/angeo-34-485-2016.</mixed-citation>
     <mixed-citation xml:lang="en">Yagova N.V., Rozenberg I.N., Gvishiani A.D., Sakharov Ya.A., Garanin S.L., Voronin V.A., et al. Study of geomagnetic activity impact on functioning of railway automatics in Russian Arctic. Arktika: ekologiya I ekonomika [Arctic: Ecology and Economy]. 2023, vol. 13, pp. 341–352. DOI: 10.25283/2223-4594-2023-3-341-352. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
  </ref-list>
 </back>
</article>
