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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">aari</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы Арктики и Антарктики</journal-title><trans-title-group xml:lang="en"><trans-title>Arctic and Antarctic Research</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0555-2648</issn><issn pub-type="epub">2618-6713</issn><publisher><publisher-name>Государственный научный центр Российской Федерации Арктический и антарктический научно-исследовательский институт</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30758/0555-2648-2024-70-2-222-237</article-id><article-id custom-type="elpub" pub-id-type="custom">aari-614</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ГЛЯЦИОЛОГИЯ И КРИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>GLACIOLOGY AND CRYOLOGY OF THE EARTH</subject></subj-group></article-categories><title-group><article-title>Факторы активизации термоденудации и активность термоцирков на Центральном Ямале в 2010–2018 гг.</article-title><trans-title-group xml:lang="en"><trans-title>Factors of thermal denudation activation and thermicirques activity on central Yamal in 2010–2018</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8855-3483</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хомутов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khomutov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тюмень</p></bio><bio xml:lang="en"><p>Artem V. Khomutov</p><p>Tyumen</p></bio><email xlink:type="simple">artcryo@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1426-6091</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бабкина</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Babkina</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тюмень</p></bio><bio xml:lang="en"><p>Elena A. Babkina</p><p>Tyumen</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4948-8938</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хайруллин</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Khairullin</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Корнойбург</p></bio><bio xml:lang="en"><p>Rustam R. Khairullin</p><p>Korneuburg</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3491-4487</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дворников</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dvornikov</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, Пущино</p></bio><bio xml:lang="en"><p>Yury A. Dvornikov - Smart Urban Nature Laboratory, PFUR; Laboratory of Carbon Monitoring in Terrestrial Ecosystems, IPBPSS RAS</p><p>Moscow, Pushchino</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт криосферы Земли Тюменского научного центра СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Earth Cryosphere Institute, Tyumen Scientific Centre, Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «b.geos»</institution><country>Австрия</country></aff><aff xml:lang="en"><institution>b.geos GmbH</institution><country>Austria</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Российский университет дружбы народов; Институт физико-химических и биологических проблем почвоведения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peoples’ Friendship University of Russia; Institute of Physicochemical and Biological Problems of Soil Science of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>27</day><month>06</month><year>2024</year></pub-date><volume>70</volume><issue>2</issue><fpage>222</fpage><lpage>237</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Хомутов А.В., Бабкина Е.А., Хайруллин Р.Р., Дворников Ю.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Хомутов А.В., Бабкина Е.А., Хайруллин Р.Р., Дворников Ю.А.</copyright-holder><copyright-holder xml:lang="en">Khomutov A.V., Babkina E.A., Khairullin R.R., Dvornikov Y.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.aaresearch.science/jour/article/view/614">https://www.aaresearch.science/jour/article/view/614</self-uri><abstract><p>Рассмотрены климатические факторы активизации термоденудационных процессов, приводящих к образованию термоцирков, в центральной части полуострова Ямал. На основе сопоставления разновременных дистанционных материалов, сопровождавшегося анализом климатических данных, проведен анализ активности термоцирков в период 2010–2018 гг. Помимо «классических» термоцирков, характеризующихся в анализируемый временной период разной степенью активности, выделено существенное количество эмбриональных термоденудационных форм.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents research findings of the climatic factors responsible for the activation of thermal denudation processes leading to the formation of thermocirques in the central part of the Yamal Peninsula in the north of West Siberia. Based on a comparison of multi-temporal remote sensing (2010, 2013 and 2018) coupled with climate data, an analysis of the thermocirques activity in 2010–2018 was carried out. Thermocirques are specific topographic forms that arise because of the activation of cryogenic earth flows, the formation of which is caused by an increased seasonal thawing of the upper part of the ground ice on the slopes as compared to the previous years. Analysis of the monitoring data showed that in 2012 and 2013 all the types of surfaces are characterized by a significant increase in seasonal thawing compared to the previous period 1993–2011 (12 % increase on slopes), due to the summer air temperature, the amount of summer precipitation and the increased duration of the warm period. The results of the thermocirques activity analysis are shown on a map. The results of this local study were compared with those of a regional (Yamal and Gydan Peninsulas) remote sensing study of thermocirques. This showed a higher accuracy of the local study based on field monitoring and very-high-resolution satellite imagery. The analysis of the thermocirques activity showed that 1) over the period from 2010 to 2018 thermal denudation activity in the study area increased due to the anomalous climatic conditions in the spring-summer season of 2012, and then gradually decreased; 2) in addition to “classical” thermocirques, which were at different stages of activity in the time periods analyzed (2010, 2013 and 2018), a significant number of embryonic thermocirques were identified. Such thermocirques, just as the majority of small “classical” thermocirques, can only be identified on very-high-resolution satellite imagery.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>изменение климата</kwd><kwd>многолетнемерзлые породы</kwd><kwd>подземный лед</kwd><kwd>полуостров Ямал</kwd><kwd>сезонное протаивание</kwd><kwd>термоденудация</kwd><kwd>термоцирк</kwd></kwd-group><kwd-group xml:lang="en"><kwd>climate change</kwd><kwd>ground ice</kwd><kwd>permafrost</kwd><kwd>seasonal thawing</kwd><kwd>thermal denudation</kwd><kwd>thermocirque</kwd><kwd>Yamal Peninsula</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена Институтом криосферы Земли ТюмНЦ СО РАН в рамках государственного задания Министерства науки и высшего образования Российской Федерации (тема № FWRZ2021-0012). Данные мониторинга глубины сезонного протаивания (с 1993 по 2018 г.) и термоцирков (с 2012 по 2017 г.) получены в рамках интеграционных проектов СО РАН № 122 и 144. Мониторинг термоцирков в 2018–2020 гг., а также первоначальный этап анализа их активности проведены в рамках гранта РФФИ № 18-05-60222. Экспедиции организованы при поддержке НП «МЭЦ “Арктика”» (2014–2017 гг.) и НП «Российский центр освоения Арктики» (2018–2019 гг.)</funding-statement><funding-statement xml:lang="en">The research was carried by the Earth Cryosphere Institute of the Tyumen Scientific Centre of Siberian Branch of the Russian Academy of Sciences within the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation (theme No. FWRZ-2021-0012). Datasets of seasonal thaw thickness (1993–2018) and thermocirques (2012–2017) monitoring received within the framework of the integration projects of Siberian Branch of the Russian Academy of Sciences No. 122 and 144. Thermocirques monitoring in 2018–2020 and first stage of their activity analysis was carried within the framework of the RFBR grant No. 18-05-60222. 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