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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">environment</journal-id><journal-title-group><journal-title xml:lang="ru">Природообустройство</journal-title><trans-title-group xml:lang="en"><trans-title>Prirodoobustrojstvo</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-6011</issn><publisher><publisher-name>РГАУ-МСХА имени К.А. Тимирязева</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26897/1997-6011-2026-2-92-97</article-id><article-id custom-type="elpub" pub-id-type="custom">environment-1002</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>ГИДРОТЕХНИЧЕСКОЕ СТРОИТЕЛЬСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>HYDRAULIC ENGINEERING CONSTRUCTION</subject></subj-group></article-categories><title-group><article-title>Многолетние колебания годового стока рек на побережье залива Креста</article-title><trans-title-group xml:lang="en"><trans-title>Long-term fluctuations in the annual flow of rivers on the coast of the Bay of Cross</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1731-7541</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ушаков</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ushakov</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Вилорьевич Ушаков: канд. географических наук</p><p>Магадан</p><p>РИНЦ AuthorID68167</p></bio><bio xml:lang="en"><p>Mikhail V. Ushakov: CSs (Geogr)</p><p>RSCI AuthorID68167</p></bio><email xlink:type="simple">mvilorich@narod.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение науки Северо-Восточный комплексный научно-исследовательский институт им. Н.А. Шило Дальневосточного отделения Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>North-East Interdisciplinary Scientific Research Instituten.a. N.A. Shilo, Far East Branch, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>05</day><month>06</month><year>2026</year></pub-date><volume>0</volume><issue>2</issue><fpage>92</fpage><lpage>97</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ушаков М.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Ушаков М.В.</copyright-holder><copyright-holder xml:lang="en">Ushakov M.V.</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://environment.timacad.ru/jour/article/view/1002">https://environment.timacad.ru/jour/article/view/1002</self-uri><abstract><p>На побережье залива Креста (Чукотка) сточные воды п. Эгвекинот и аэропорта сбрасываются в речную сеть и залив без очистки. В исследованиях ставилась цель изучить характер многолетних колебаний годового стока рек залива Креста. По годовым суммам осадков и вычисленным величинам испарения с поверхности суши были удлинены ряды годового стока рек Нырвакнотвээм и Изыскательский. Исследования показали, что ряд среднегодовой температуры воздуха в пункте Эгвекинот имеет статистически значимый положительный тренд. Колебания годовых сумм атмосферных осадков, испарения и слоев годового стока не содержат трендов. Спектральный анализ выявил в колебаниях годового стока статистически значимые гармоники на периодах 4, 6 и 7 лет. Было получено гармоническое уравнение, при помощи которого можно прогнозировать колебания годового стока рек залива Креста. Результаты будут полезны при проектировании и эксплуатации очистных сооружений сточных вод и рациональном использовании водных ресурсов.</p></abstract><trans-abstract xml:lang="en"><p>On the coast of the Bay of the Cross (Chukotka), wastewater from the village of Ekvekinot and the airport is discharged into the river network and the bay without treatment. The goal of the study was to study the nature of long-term fluctuations in the annual flow of the rivers of the Bay of the Cross. Based on annual precipitation amounts and calculated evaporation values f rom the land surface, the series of annual runoff of the Nyrvaknotveem and Izyskatelsky rivers were extended. The study showed that the series of average annual air temperature at Egvekinot has a statistically significant positive trend. Fluctuations in annual precipitation amounts, evaporation, and annual runoff layers do not contain trends. Spectral analysis revealed statistically significant harmonics in fluctuations in annual runoff over periods of 4, 6, and 7 years. A harmonic equation was obtained that can be used to predict fluctuations in the annual runoff of the rivers of the Bay of the Cross. The results will be useful in the design and operation of wastewater treatment plants and the rational use of water resources.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>годовой сток</kwd><kwd>испарение</kwd><kwd>спектральный анализ временного ряда</kwd><kwd>прогноз</kwd></kwd-group><kwd-group xml:lang="en"><kwd>annual runoff</kwd><kwd>evaporation</kwd><kwd>time series spectral analysis</kwd><kwd>forecast</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Об утверждении схем водоснабжения и водоотведения городского округа Эгвекинот. [Электронный ресурс]. 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