<?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>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2006000300007</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estimación de la temperatura de suelo desde datos satelitales AVHRR-NOAA aplicando algoritmos de split window]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Parra]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sobrino]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Acevedo]]></surname>
<given-names><![CDATA[P.S.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[L.J.]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad de La Frontera Departamento de Ciencias Físicas ]]></institution>
<addr-line><![CDATA[Temuco ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad de Valencia Departamento de Termodinámica ]]></institution>
<addr-line><![CDATA[Valencia ]]></addr-line>
<country>España</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad Tecnológica Metropolitana Departamento de Física ]]></institution>
<addr-line><![CDATA[Santiago ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2006</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2006</year>
</pub-date>
<volume>52</volume>
<numero>3</numero>
<fpage>238</fpage>
<lpage>245</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2006000300007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2006000300007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2006000300007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se aplican cuatro algoritmos, basados en la técnica de split-window, para estimar la temperatura de suelo a partir de los datos proporcionados por el sensor Advanced Very High Resolution Radiometer (AVHRR), a bordo de la serie de satélites de la National Oceanic and Atmospheric Administration (NOAA). Estos algoritmos consideran correcciones por emisividad de las diferentes superficies del terreno y atmosférica. Se utilizaron catorce imágenes AVHRR-NOAA correspondientes a los meses de octubre de 2003 y enero de 2004. En paralelo se realizaron mediciones de temperatura de suelo en la estación agrometeorológica de Carillanca, Región de La Araucanía, Chile (38°41' S; 72°25' W). De todos los algoritmos utilizados, los mejores resultados corresponden al modelo propuesto por Sobrino y Raussoni (2000), con una media y desviacion estándar de la diferencia entre la temperatura de suelo medida in situ y la estimada por dicho algoritmo, de - 0.06 y 2.11K, respectivamente.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Four algorithms based on the technique of split-window, to estimate the land surface temperature starting from the data provided by the sensor Advanced Very High Resolution radiometer (AVHRR), on board the series of satellites of the National Oceanic and Atmospheric Administration (NOAA), are carried out. These algorithms consider corrections for atmospheric characteristics and emissivity of the different surfaces of the land. Fourteen images AVHRR-NOAA corresponding to the months of October of 2003, and January of 2004 were used. Simultaneously, measurements of soil temperature in the Carillanca hydro-meteorological station were collected in the Region of La Araucanía, Chile (38°41' S; 72°25' W). Of all the used algorithms, the best results correspond to the model proposed by Sobrino and Raussoni (2000), with a media and standard deviation corresponding to the difference among the temperature of floor measure in situ and the estimated for this algorithm, of-0.06 and 2.11 K, respectively.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Superficie]]></kwd>
<kwd lng="es"><![CDATA[satélite]]></kwd>
<kwd lng="es"><![CDATA[correcciones atmosféricas]]></kwd>
<kwd lng="es"><![CDATA[emisividad]]></kwd>
<kwd lng="en"><![CDATA[Seurface]]></kwd>
<kwd lng="en"><![CDATA[satellite]]></kwd>
<kwd lng="en"><![CDATA[atmospherics corrections]]></kwd>
<kwd lng="en"><![CDATA[emissivity]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Investigaci&oacute;n</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>Estimaci&oacute;n de la temperatura de suelo desde datos satelitales AVHRR&#150;NOAA aplicando algoritmos de split window</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>J.C. Parra<sup>a</sup>, J.A. Sobrino<sup>b</sup>, P.S. Acevedo<sup>a</sup> y L.J. Morales<sup>c</sup></b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>a Departamento de Ciencias F&iacute;sicas, Universidad de La Frontera Casilla 54&#150;D, Temuco, Chile.</i></font></p>     <p align="justify"><font face="verdana" size="2"><i>b Departamento de Termodin&aacute;mica, Universidad de Valencia, </i><i>46100 Burjassot, Valencia, Espa&ntilde;a.</i></font></p>     <p align="justify"><font face="verdana" size="2"><i>c Departamento de F&iacute;sica, Universidad Tecnol&oacute;gica Metropolitana, Casilla 9845, Santiago, Chile.</i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Recibido el 30 de 01 de 2006    <br> Aceptado el 26 de 04 de 2006</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">Se aplican cuatro algoritmos, basados en la t&eacute;cnica de split&#150;window, para estimar la temperatura de suelo a partir de los datos proporcionados por el sensor Advanced Very High Resolution Radiometer (AVHRR), a bordo de la serie de sat&eacute;lites de la National Oceanic and Atmospheric Administration (NOAA). Estos algoritmos consideran correcciones por emisividad de las diferentes superficies del terreno y atmosf&eacute;rica. Se utilizaron catorce im&aacute;genes AVHRR&#150;NOAA correspondientes a los meses de octubre de 2003 y enero de 2004. En paralelo se realizaron mediciones de temperatura de suelo en la estaci&oacute;n agrometeorol&oacute;gica de Carillanca, Regi&oacute;n de La Araucan&iacute;a, Chile (38&deg;41' S; 72&deg;25' W). De todos los algoritmos utilizados, los mejores resultados corresponden al modelo propuesto por Sobrino y Raussoni (2000), con una media y desviacion est&aacute;ndar de la diferencia entre la temperatura de suelo medida <i>in situ </i>y la estimada por dicho algoritmo, de &#150; 0.06 y 2.11K, respectivamente.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>Superficie; sat&eacute;lite; correcciones atmosf&eacute;ricas; emisividad.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">Four algorithms based on the technique of split&#150;window, to estimate the land surface temperature starting from the data provided by the sensor Advanced Very High Resolution radiometer (AVHRR), on board the series of satellites of the National Oceanic and Atmospheric Administration (NOAA), are carried out. These algorithms consider corrections for atmospheric characteristics and emissivity of the different surfaces of the land. Fourteen images AVHRR&#150;NOAA corresponding to the months of October of 2003, and January of 2004 were used. Simultaneously, measurements of soil temperature in the Carillanca hydro&#150;meteorological station were collected in the Region of La Araucan&iacute;a, Chile (38&deg;41' S; 72&deg;25' W). Of all the used algorithms, the best results correspond to the model proposed by Sobrino and Raussoni (2000), with a media and standard deviation corresponding to the difference among the temperature of floor measure <i>in situ </i>and the estimated for this algorithm, of&#150;0.06 and 2.11 K, respectively.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Kywords: </b>S<i>e</i>urface; satellite; atmospherics corrections; emissivity.</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">PACS: 07.07.Df; 07.87.+v; 95.40.+s</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v52n3/v52n3a7.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Agradecimientos</b></font></p>     <p align="justify"><font face="verdana" size="2">Los autores agradecen el apoyo financiero prestado por el Proyecto DIDUFRO N&deg; 120320, Direccion de Investigaci&oacute;n y Desarrollo, Universidad de La Frontera (Chile). Al mismo tiempo, agradecer al Comprehensive Large Array&#150;data Stewardship System (CLASS) por acceder gratuitamente a las im&aacute;genes NOAA&#150;16.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. J.A. Sobrino y M.H. El Kharraz, <i>J. Geophys. Res. </i><b>104</b> (1991a) 9445.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8318528&pid=S0035-001X200600030000700001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">2. J.A. Sobrino y M.H. El Kharraz, <i>J. Geophys. 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