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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">10.30758/0555-2648-2021-67-1-67-88</article-id><article-id custom-type="elpub" pub-id-type="custom">aari-340</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>Внутренняя дренажная сеть и характеристики подледникового стока ледника Альдегонда (о. Западный Шпицберген)</article-title><trans-title-group xml:lang="en"><trans-title>Internal drainage network and characteristics of the Aldegondabreen runoff (West Spitsbergen)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Борисик</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Borisik</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Демидов</surname><given-names>В. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Demidov</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ромашова</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Romashova</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><email xlink:type="simple">hydrology2@aari.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новиков</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikov</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГНЦ РФ Арктический и антарктический научно-исследовательский институт</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State Scientific Center of the Russian Federation Arctic and Antarctic research Institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>23</day><month>03</month><year>2021</year></pub-date><volume>67</volume><issue>1</issue><fpage>67</fpage><lpage>88</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Борисик А.Л., Демидов В.Э., Ромашова К.В., Новиков А.Л., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Борисик А.Л., Демидов В.Э., Ромашова К.В., Новиков А.Л.</copyright-holder><copyright-holder xml:lang="en">Borisik A.L., Demidov V.E., Romashova K.V., Novikov A.L.</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/340">https://www.aaresearch.science/jour/article/view/340</self-uri><abstract><p>С целью определения положения и гидрохимических характеристик поверхностных и внутренних дренажных каналов ледника были выполнены комплексные исследования, включавшие детальное георадиолокационное профилирование и гидрологическую съемку. Проанализированы материалы предшествующих работ по изучению дренажной сети и подледникового стока. По данным георадиолокации сделаны выводы о строении внутренней дренажной сети ледника, согласно которым выделены основные каналы движения талых вод: 2 подледниковых в области холодного льда и 2 внутриледниковых вблизи области теплого льда. Выдвинуты и обоснованы предположения об области питания внутриледниковых каналов в верховьях ледника и их дренировании в местах переуглублений. Показано изменение электропроводности и гидрохимического состава подледниковых выходов и реки Альдегонды на всем ее протяжении. Выявлена зона обогащения слабоминерализованных талых ледниковых вод гидрокарбонатно-кальциевого состава сильноминерализованными подземными водами сульфатно-кальциевого состава, поступающими из источников на ригеле перед фронтом ледника в центральной части долины реки Альдегонды.</p></abstract><trans-abstract xml:lang="en"><p>The polythermal Aldegondabreen is one of the most widely studied glaciers of the Nordenskjöld Land (Svalbard). However, the structure of its internal drainage network remains poorly understood. In order to determine the position and hydro-chemical characteristics of the surface and internal drainage channels of the glacier complex studies were carried out including ground penetrating radar (GPR) measurements and hydrological surveys. The GPR profiling performed in 2018–2020 identified four channels of internal drainage network, two of which are found along the northern side of the glacier in the area of cold ice and are subglacial. The other two are located in the area of temperate ice along the southern side of the glacier and are englacial, stretching at the cold-temperate surface. At the outlet grotto, the subglacial waters have a bicarbonate-calcium composition and low salinity (electrical conductivity 30–40 μS/cm), inherited from the surface meltwater streams that enter the moulins in the upper part of the glacier. No noticeable increase in mineralization occurs during the movement of the flow along the glacier bed. The englacial channels’ waters at the outlet grotto have the same bicarbonate-calcium composition but a higher salinity (electrical conductivity 100 μS/cm), which we attribute to the filtration through the rocks of the riegel near the Aldegonda terminus, or, alternatively, to the influx of the groundwater at the same spot. Measuring the hydrochemistry of the Aldegonda river tributaries both on the glacier’s surface, at the grottos and on the moraine in the valley made it possible to identify the zone of enrichment of the main volume of the low-mineralization glacial meltwater of bicarbonate-calcium composition by the high-mineralization (electrical conductivity up to 760 μS/cm) groundwater of sulphate-calcium composition coming from the springs on the riegel in front of the glacier’s terminus in the central part of the Aldegonda Valley. Presumably, the springs are fed by the deep filtration of melted glacial waters along the Aldegonda subglacial talik.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>внутренняя дренажная сеть</kwd><kwd>георадиолокационная съемка</kwd><kwd>ледник</kwd><kwd>минерализация</kwd><kwd>подледниковый сток</kwd><kwd>Шпицберген</kwd></kwd-group><kwd-group xml:lang="en"><kwd>glacier</kwd><kwd>ground penetrating radar profiling</kwd><kwd>internal drainage network</kwd><kwd>mineralization</kwd><kwd>subglacial runoff</kwd><kwd>Svalbard</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования выполнены в рамках работ по программе Российской научной арктической экспедиции на архипелаге Шпицберген (РАЭ-Ш) ФГБУ «ААНИИ» и тематики НИОКР Росгидромета, а также при финансовой поддержке РФФИ в рамках проекта № 18-05-00421 «Особенности формирования и развития паводков подледниковых водоемов Антарктиды».</funding-statement><funding-statement xml:lang="en">The studies were carried out as part of the program of the Russian scientific Arctic expedition on the Spitsbergen (RAE-S) of FSBI “AARI”, the R&amp;D topics of Roshydromet and with the financial support by RFBR grant No 18-05-00421 “Main features of formation and development of the Antarctic subglacial floods”.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Глазовский А.Ф., Мачерет Ю.Я. 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