<?xml version="1.0" encoding="ISO-8859-1"?><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">
<front>
<journal-meta>
<journal-id>2007-2422</journal-id>
<journal-title><![CDATA[Tecnología y ciencias del agua]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnol. cienc. agua]]></abbrev-journal-title>
<issn>2007-2422</issn>
<publisher>
<publisher-name><![CDATA[Instituto Mexicano de Tecnología del Agua, Coordinación de Comunicación, Participación e Información]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-24222021000600036</article-id>
<article-id pub-id-type="doi">10.24850/j-tyca-2021-06-02</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Regionalización basada en variables geomorfológicas como herramienta para el cálculo de crecidas. Aplicación a la zona centro sur de Chile]]></article-title>
<article-title xml:lang="en"><![CDATA[Regionalization based on geomorphological variables as a tool for calculating flood flow estimates. Application to the south-central zone of Chile]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cifuentes-Santibáñez]]></surname>
<given-names><![CDATA[Daniela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas-Baecheler]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Concepción Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[Concepción ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Concepción Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[Concepción ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>12</volume>
<numero>6</numero>
<fpage>36</fpage>
<lpage>89</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-24222021000600036&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-24222021000600036&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-24222021000600036&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo de la presente investigación es proponer una metodología rápida y efectiva para las estimaciones de caudales de crecida para diferentes periodos de retorno. La propuesta metodológica planteada está basada en el método de la regionalización hidrológica. Se verifica la existencia de tres índices que logran representar la respuesta de la cuenca frente a caudales de crecida, el índice de estacionalidad pluvial, índice de estacionalidad en periodo de estiaje y el índice de magnitud de la crecida, obtenidos a partir de registros fluviométricos. Se establece que las variables geomorfológicas que están relacionadas respectivamente con estos índices son el índice de compacidad de Gravelius, altura media y área de la cuenca. Se aplican diferentes técnicas estadísticas que logran determinar un agrupamiento adecuado de cinco grupos homogéneos en la zona centro sur de Chile, comprendida entre la latitud sur 34º 50&#8217; hasta la latitud sur 39º 35&#8217;. Se exhibe un plano de clasificación para cuencas sin información hidrológica y ecuaciones regionales de estimación para cada uno de ellos. Por esto se espera que, con esta investigación, se dé un paso importante para lograr la automatización de las estimaciones a través de ecuaciones actualizadas, fáciles de aplicar y comprender en cualquier tipo de cuenca y, sobre todo, basadas en un análisis adecuado del comportamiento hidrológico de las cuencas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Most of the time in engineering practice, flow estimates must be fast and accurate, seeking to optimize analysis time. From this problem arises the aim of this research, which consists of proposing a rapid and effective flood flow estimation methodology for different return periods. The methodological proposal is based on the hydrological regionalization method. The existence of three indices that manage to represent the response of the basin to flood flows is verified: the rain seasonality index, the seasonality index in the dry season and the flood magnitude index are verified, all being obtained from fluviometric records. It is established that the geomorphological variables Gravelius Compactness index, Average Height and Area of the basin are respectively related to these indices. The different statistical techniques applied are able to determine an adequate grouping of five homogeneous groups in the south-central zone of Chile (between south latitude 34º 50 &#8217;and south latitude 39º 35&#8217;). A classification plan for basins without hydrological information and regional estimation equations for each of them is displayed. With this research it is expected that an important step will be taken to achieve the automation of the flood flow estimates in any type of basin through updated, easy, and understandable equations based, above all, on an adequate analysis of the hydrological behavior of the basins.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[regionalización hidrológica]]></kwd>
<kwd lng="es"><![CDATA[grupos homogéneos]]></kwd>
<kwd lng="es"><![CDATA[variables geomorfológicas]]></kwd>
<kwd lng="es"><![CDATA[índices de estacionalidad]]></kwd>
<kwd lng="es"><![CDATA[cuencas sin información fluviométrica]]></kwd>
<kwd lng="en"><![CDATA[Hydrological regionalization]]></kwd>
<kwd lng="en"><![CDATA[flow automation]]></kwd>
<kwd lng="en"><![CDATA[geomorphological variables]]></kwd>
<kwd lng="en"><![CDATA[seasonality indices]]></kwd>
<kwd lng="en"><![CDATA[basins without fluviometric information]]></kwd>
</kwd-group>
</article-meta>
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