<?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>0124-8170</journal-id>
<journal-title><![CDATA[Ciencia e Ingeniería Neogranadina]]></journal-title>
<abbrev-journal-title><![CDATA[Cienc. Ing. Neogranad.]]></abbrev-journal-title>
<issn>0124-8170</issn>
<publisher>
<publisher-name><![CDATA[Universidad Militar Nueva Granada]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0124-81702019000100019</article-id>
<article-id pub-id-type="doi">10.18359/rcin.3400</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Modelos de temperatura del suelo a partir de sondeos superficiales de temperatura y sensores remotos para el área geotérmica del volcán Azufral]]></article-title>
<article-title xml:lang="en"><![CDATA[Soil Temperature Models via Surface Temperature Surveys and Remote Sensors for the Geothermal Area of the Azufral Volcano]]></article-title>
<article-title xml:lang="pt"><![CDATA[Modelos de Temperatura do Solo a Partir de Sondas Superficiais de Temperatura e Sensores Remotos para a Área Geotérmica do Vulcão Azufral]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Matiz-León]]></surname>
<given-names><![CDATA[Jhon Camilo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Rodríguez]]></surname>
<given-names><![CDATA[Gilbert Fabián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alfaro-Valero]]></surname>
<given-names><![CDATA[Claudia María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Servicio Geológico Colombiano  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Servicio Geológico Colombiano  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Servicio Geológico Colombiano  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<volume>29</volume>
<numero>1</numero>
<fpage>19</fpage>
<lpage>35</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0124-81702019000100019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0124-81702019000100019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0124-81702019000100019&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La estimación de la distribución de calor en superficie y a profundidades someras (20 cm, 100 cm y 150 cm) por medio de los sondeos superficiales de temperatura (SST) para el área geotérmica del volcán Azufral encontró anomalías entre los 6°C y los 20°C. A su vez, se realizaron modelos de temperatura mediante imágenes Landsat 8 del sensor TIRS (por sus siglas en inglés), que permitieron alcanzar una aproximación de la distribución de calor en superficie con tres imágenes con fecha de toma cercanas a las fechas de levantamiento de los SST. Integrando el índice de vegetación de diferencia normalizada (NDVI, por sus siglas en inglés) (entre 0,93 y -0,563) y la topografía (alturas entre 2800 msnm y 3800 msnm) en secciones cruzadas mediante técnicas de análisis espacial, se analizaron las anomalías positivas y negativas de estas tres variables en el área geotérmica. Con la estimación del coeficiente de Pearson como método cuantitativo para el análisis de las correlaciones entre los diferentes modelos generados, se denota que existe una fuerte correlación positiva (entre 0,19 y 0,46) entre las temperaturas en profundidad contra las temperaturas para cada uno de los días calculados con Landsat 8 TIRS.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Heat distribution estimates at the surface and shallow depths (20 cm, 100 cm, and 150cm) obtained through surface temperature surveys (STSs) in the geothermal area of the Azufral volcano found anomalies ranging between 6 °C and 20 °C. Additionally, temperature models developed through Landsat 8 images from the thermal infrared sensor (TIRS) reached an approximation of the surface heat distribution based on three images captured around the dates on which the STSs were conducted. Aggregating the normalized difference vegetation index (NDVI) (between 0.93 and -0.563) and the topography (elevations between 2800 and 3800 m above sea level) in cross-sections using spatial analysis techniques, this study assessed the positive and negative anomalies exhibited by these three variables within the geothermal area. Further, using Pearson coefficient estimates as a quantitative method for analyzing the correlations between the different models generated, a strong positive correlation (between 0.19 and 0.46) is denoted between deep temperatures against the different surface temperatures calculated for each day using Landsat 8 TIRS.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo: A estimativa da distribuição de calor na superfície e profundidades rasas (20 cm, 100 cm e 150 cm) obtidas por meio de sondas superficiais de temperatura (SST) na área geotérmica do vulcão Azufral encontrou anomalias entre 6°C e 20°C. Adicionalmente, modelos de temperatura desenvolvidos pelas imagens Landsat 8 pelo sensor térmico infravermelho (TIRS), permitiram alcançar uma distribuição de calor aproximada na superfície baseadas em três imagens com datas próximas das quais os dados de STSs foram levantados. Agregando os índices normalizados da diferença na vegetação (NDVI, em sua sigla em inglês) (entre 0,93 e -0,563) e a topografia (elevações entre 2800 e 3800 m acima do nível do mar) em cortes axiais, usando técnicas de análises espaciais, foram analisadas as anomalias positivas e negativas destas três variáveis na área geotérmica. Com a estimativa do coeficiente de Pearson como método quantitativo para a análise das correlações dos diferentes modelos gerados, denota-se que há uma forte correlação positiva (entre 0,19 e 0,46) entre as temperaturas em profundidade contra as temperaturas para cada um dos dias calculadas utilizando o Landsat 8 TIRS.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[exploración geotérmica]]></kwd>
<kwd lng="es"><![CDATA[volcán Azufral]]></kwd>
<kwd lng="es"><![CDATA[sondeos superficiales de temperatura]]></kwd>
<kwd lng="es"><![CDATA[sensores remotos]]></kwd>
<kwd lng="es"><![CDATA[NDVI]]></kwd>
<kwd lng="es"><![CDATA[procesamiento digital de imágenes de satélite]]></kwd>
<kwd lng="en"><![CDATA[Geothermal Exploration]]></kwd>
<kwd lng="en"><![CDATA[Azufral Volcano]]></kwd>
<kwd lng="en"><![CDATA[Surface Temperature Surveys]]></kwd>
<kwd lng="en"><![CDATA[Remote Sensing]]></kwd>
<kwd lng="en"><![CDATA[NDVI]]></kwd>
<kwd lng="en"><![CDATA[Digital Processing of Satellite Images]]></kwd>
<kwd lng="pt"><![CDATA[Exploração Geotérmica]]></kwd>
<kwd lng="pt"><![CDATA[Vulcão Azufral]]></kwd>
<kwd lng="pt"><![CDATA[Sondagem de Temperaturas Superficiais]]></kwd>
<kwd lng="pt"><![CDATA[Sensores Remotos]]></kwd>
<kwd lng="pt"><![CDATA[NDVI]]></kwd>
<kwd lng="pt"><![CDATA[Processamento Digital de Imagens de Satélite]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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