<?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>0187-5779</journal-id>
<journal-title><![CDATA[Terra Latinoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Terra Latinoam]]></abbrev-journal-title>
<issn>0187-5779</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de la Ciencia del Suelo A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-57792019000100027</article-id>
<article-id pub-id-type="doi">10.28940/tl.v37i1.414</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Desarrollo de un modelo genérico del footprint para sensores estáticos del sistema suelo-vegetación]]></article-title>
<article-title xml:lang="en"><![CDATA[Development of a generic footprint model for static sensors of the soil-vegetation system]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paz]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marín]]></surname>
<given-names><![CDATA[Ma. Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<volume>37</volume>
<numero>1</numero>
<fpage>27</fpage>
<lpage>34</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-57792019000100027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-57792019000100027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-57792019000100027&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La estimación de las áreas de influencia (footprints) de las mediciones de flujos de energía y materia, con sistemas de covarianza de vórtices permite hacer interoperables las mediciones para analizar los problemas de cierres de balance de energía. Por un lado, las mediciones de los flujos de calor latente y sensible son dependientes de la altura de los sensores, velocidad y dirección del viento, rasgos morfo-estructurales de la vegetación y condiciones de estabilidad de la atmósfera; mientras que, por otra parte, las mediciones de radiación neta y flujos de calor del suelo no son dependientes de la intensidad y dirección del viento o de otro rasgo, solo dependen de la altura del sensor (radiación neta) o la configuración espacial de las placas de calor (flujo de calor del suelo). Para poder hacer intercomparables las mediciones de radiación neta con las de los flujos de calor latente y sensible, el objetivo de este trabajo fue desarrollar un modelo aproximado del footprint de este tipo de sensores estáticos, el cual fue parametrizado en forma simple en función de la altura del sensor y la geometría de visión y de iluminación solar. Los desarrollos permitieron el uso del modelo de footprint en forma operativa para tener una perspectiva en relación con el problema de cierres de los balances de energía si es producto de las diferencias en los footprints de los sensores o de advección del viento. La parametrización introducida, puede ser integrada en un software de medición de flujos de sistemas de covarianza de vórtices, para realizar balances de energía en periodos de integración de los datos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary Estimation of areas of influence (footprints) of measurements of energy and matter fluxes with eddie covariance systems allows measurements to be interoperable to analyze the problems of energy balance closures. On one hand, measurements of latent and sensible heat fluxes are dependent on the height of the sensors, wind speed and direction, morpho-structural features of the vegetation and conditions of stability of the atmosphere. On the other hand, measurements of net radiation and soil heat fluxes are not dependent on the intensity and direction of the wind or other feature. They depend only on the height of the sensor (net radiation) or the spatial configuration of the heat plates (soil heat flow). To be able to interoperate the net radiation measurements with those of the latent and sensible heat fluxes, in this work was to develop an approximate model of the footprint of static sensors, which is parameterized in a simple way depending on sensor height, vision geometry and solar illumination. The development allows the use of the footprint model in an operative way, thus allowing a perspective in relation to the problem of closures of the energy balances if it is a product of the differences in the footprints of the sensors or of wind advection. The parameterization introduced can be integrated into a flow measurement software of eddie covariance systems to perform energy balances in periods of data integration.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[cierre de balances de energía]]></kwd>
<kwd lng="es"><![CDATA[interoperabilidad]]></kwd>
<kwd lng="es"><![CDATA[modelo de geometría sol-sensor]]></kwd>
<kwd lng="es"><![CDATA[radiación neta]]></kwd>
<kwd lng="en"><![CDATA[energy balance closure]]></kwd>
<kwd lng="en"><![CDATA[interoperability]]></kwd>
<kwd lng="en"><![CDATA[net radiation]]></kwd>
<kwd lng="en"><![CDATA[sun-sensor geometry model]]></kwd>
</kwd-group>
</article-meta>
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<article-title xml:lang=""><![CDATA[Energy balance closure at FLUXNET sites]]></article-title>
<source><![CDATA[Agric. For. Meteorol.]]></source>
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