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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Engineering Research</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Engineering Research</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Инженерные исследования</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-8143</issn><issn publication-format="electronic">2312-8151</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">5254</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Morphomet52ric characterization parameters of river basin of Manabi</article-title><trans-title-group xml:lang="ru"><trans-title>Структурный подход к оценке морфометрических характеристик бассейнов рек провинции Манаби (Эквадор)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Antonio Fermin Campos Cedeno</surname><given-names>-</given-names></name><name xml:lang="ru"><surname>Антонио Фермин Кампос Седеньо</surname><given-names>-</given-names></name></name-alternatives><email>eks47@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sinichenko</surname><given-names>E K</given-names></name><name xml:lang="ru"><surname>Синиченко</surname><given-names>Евгений Константинович</given-names></name></name-alternatives><email>eks47@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gritsuk</surname><given-names>I I</given-names></name><name xml:lang="ru"><surname>Грицук</surname><given-names>Илья Игоревич</given-names></name></name-alternatives><bio xml:lang="en">Water Problems Institute Russian Academy of Science Gubkina str., 3, Moscow, Russia, 119333</bio><bio xml:lang="ru">Институт водных проблем РАН ул. Губкина, 3, Москва, Россия, 119333</bio><email>-</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2015-01-15" publication-format="electronic"><day>15</day><month>01</month><year>2015</year></pub-date><issue>1</issue><issue-title xml:lang="en">NO1 (2015)</issue-title><issue-title xml:lang="ru">№1 (2015)</issue-title><fpage>52</fpage><lpage>61</lpage><history><date date-type="received" iso-8601-date="2016-09-07"><day>07</day><month>09</month><year>2016</year></date></history><permissions><copyright-statement xml:lang="ru">Copyright ©; 2015, Антонио Фермин Кампос Седеньо -., Синиченко Е.К., Грицук И.И.</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Антонио Фермин Кампос Седеньо -., Синиченко Е.К., Грицук И.И.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/engineering-researches/article/view/5254">https://journals.rudn.ru/engineering-researches/article/view/5254</self-uri><abstract xml:lang="en">This paper presents an analysis of several methods so far developed to characterize the drainage networks of watersheds, indicating their relevant properties. On the other hand, is elaborated an extract of certain laws, on which the watershed morphometry is based to characterize the drainage potential of watersheds. Finally, based on the proposed framework, is performed the estimation of compactness index and river density of Manabi watersheds, as important input to the design of hydraulic works in the province of Manabi and Ecuador related to the management of watersheds.</abstract><trans-abstract xml:lang="ru">В статье представлен анализ нескольких методов структурного подхода для расчета морфометрических и гидрологических характеристик речных сетей и водосборных бассейнов, на которых базируется их гидрографическое районирование. На основе рассмотренных методов оценивается индекс компактности и густота речных сетей для бассейнов рек провинции Манаби (Эквадор).</trans-abstract><kwd-group xml:lang="en"><kwd>hydrology</kwd><kwd>drainage basin</kwd><kwd>basin laws</kwd><kwd>compactness index</kwd><kwd>river density</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>гидрология</kwd><kwd>водосборный бассейн</kwd><kwd>речные сети</kwd><kwd>индекс компактности</kwd><kwd>густота речных сетей</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>‎Орлов В.Г. Основы физической гидрографии. - Ленинград: Ле‎нинградский гидрометеорологический институт, 1979.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Ржаницын Н.А. Морфологические и гидрологические закономер-‎ности строения речной сети. - Ленинград: Гидрометеоиздат, 1960.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Ржаницын Н.А. 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