<?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>1390-0129</journal-id>
<journal-title><![CDATA[Revista Politécnica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Politéc. (Quito)]]></abbrev-journal-title>
<issn>1390-0129</issn>
<publisher>
<publisher-name><![CDATA[Escuela Politécnica Nacional]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1390-01292022000400015</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación de la Agresividad Climática y Concentración de Precipitaciones en la Cuenca Chancay-Lambayeque, Perú]]></article-title>
<article-title xml:lang="en"><![CDATA[Assessment of Climatic Aggressiveness and Precipitation Concentration in the Chancay-Lambayeque Basin, Peru]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guillermo]]></surname>
<given-names><![CDATA[Arriola,]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Luis]]></surname>
<given-names><![CDATA[Villegas,]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Noe]]></surname>
<given-names><![CDATA[Marín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[César]]></surname>
<given-names><![CDATA[Idrogo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Piedra]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arbulú]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Uninversidad Señor de Sipán  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Perú</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Uninversidad Señor de Sipán  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Perú</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Uninversidad Señor de Sipán  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Perú</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Uninversidad Señor de Sipán  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Perú</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Nacional de Jaén  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Peru</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad Nacional Pedro Ruiz Gallo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Perú</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>01</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>01</month>
<year>2022</year>
</pub-date>
<volume>50</volume>
<numero>2</numero>
<fpage>15</fpage>
<lpage>22</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_arttext&amp;pid=S1390-01292022000400015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_abstract&amp;pid=S1390-01292022000400015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_pdf&amp;pid=S1390-01292022000400015&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El comportamiento de las precipitaciones en el norte peruano se caracteriza por presentar lluvias con pocos meses lluviosos y muchos meses secos, por lo cual, surge la necesidad de abordar el estudio de la regularidad de las lluvias en esta zona del país con fines de pronóstico y prevención. El objetivo de la presente investigación fue evaluar la agresividad climática y concentración de precipitaciones empleando los índices de Fournier (IF), Fournier modificado (IFM), Fournier-Maule modificado (IFMM) y concentración de precipitaciones (ICP), estos parámetros permiten estimar la agresividad y concentración pluvial empleando precipitaciones mensuales y anuales con correlaciones respecto a la altitud y la precipitación media. Para este caso, se usaron registros pluviométricos de las estaciones meteorológicas de la cuenca Chancay-Lambayeque ubicada en el norte de Perú agrupadas mediante su vector regional. Los resultados indican una buena correlación entre la altitud y la precipitación media (R2 = 0,69), además el índice de agresividad climática que mejor desempeño muestra es el IFMM respecto a la altitud (R2 = 0,62) y precipitación media (R2 = 0,87), también el ICP indica buenas correlaciones en cuanto a la altitud (R2 = 0,69) y precipitación media (R2 = 0,62). En consecuencia, los hallazgos de la investigación manifiestan que el IFMM y ICP son los mejores estimadores para la cuenca estudiada ya que explican su agresividad climática variable y un comportamiento estacional según la concentración de precipitaciones.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The behavior of precipitations in northern Peru is characterized by having rains with few rainy months and many dry months, which is why there is a need to address the study of the regularity of rains in this area of the country for forecasting and prevention purposes. The objective of this research was to evaluate the climatic aggressiveness and precipitation concentration using Fournier (IF), modified Fournier (IFM), modified Fournier-Maule (IFMM) and precipitation concentration (ICP) index, since these parameters allow estimating the aggressiveness and pluvial concentration using monthly and annual precipitations with correlations with respect to altitude and mean precipitation, which for this case pluviometric records from meteorological stations of the Chancay-Lambayeque basin located in northern Peru were used grouped by their regional vector. The results indicate a good correlation between altitude and mean precipitation (R2 = 0,69), in addition climatic aggressiveness index that shows the best performance is IFMM with respect to altitude (R2 = 0,62) and mean precipitation (R2 = 0,87), ICP also indicates good correlations in terms of altitude (R2 = 0,69) and media precipitation (R2 = 0,62). Consequently, the research findings show that IFMM and ICP are the best estimators for the studied basin as they explain its variable climatic aggressiveness and seasonal behavior according to precipitations concentration.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Agresividad climática]]></kwd>
<kwd lng="es"><![CDATA[altitud]]></kwd>
<kwd lng="es"><![CDATA[concentración de precipitación]]></kwd>
<kwd lng="es"><![CDATA[cuenca]]></kwd>
<kwd lng="es"><![CDATA[estaciones meteorológicas]]></kwd>
<kwd lng="en"><![CDATA[Climatic aggressiveness]]></kwd>
<kwd lng="en"><![CDATA[altitude]]></kwd>
<kwd lng="en"><![CDATA[precipitation concentration]]></kwd>
<kwd lng="en"><![CDATA[basin]]></kwd>
<kwd lng="en"><![CDATA[meteorological stations]]></kwd>
</kwd-group>
</article-meta>
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