<?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>2663-3981</journal-id>
<journal-title><![CDATA[Revista cartográfica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. cartogr.]]></abbrev-journal-title>
<issn>2663-3981</issn>
<publisher>
<publisher-name><![CDATA[Instituto Panamericano de Geografía e Historia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2663-39812021000200033</article-id>
<article-id pub-id-type="doi">10.35424/rcarto.i103.975</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Métodos de orlado para la evaluación de la exactitud altimétrica en modelos digitales de elevaciones del terreno]]></article-title>
<article-title xml:lang="en"><![CDATA[Buffer methods for assessing the altimetric accuracy in digital terrain elevation models]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ariza-López]]></surname>
<given-names><![CDATA[Francisco Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reinoso-Gordo]]></surname>
<given-names><![CDATA[Juan Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Jaén  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Granada  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</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>
<numero>103</numero>
<fpage>33</fpage>
<lpage>45</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2663-39812021000200033&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2663-39812021000200033&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2663-39812021000200033&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Tradicionalmente, la evaluación de la exactitud altimétrica de modelos digitales de elevaciones del terreno (MDE), se ha realizado aplicando estándares (p.ej. National Standard for Spatial Data Accuracy) basados en el muestreo de puntos en el modelo de referencia (S1) y en el modelo a evaluar (S2). Estos estándares plantean dos inconvenientes: 1) los puntos utilizados en las evaluaciones son escasos comparados con la superficie total de un MDE y, por tanto, dejan gran parte del terreno sin evaluar, 2) la evaluación de un elemento superficial se realiza por comparación de elementos puntuales, cuando parece más adecuado evaluar por comparación de superficies. Ambos inconvenientes pueden ser superados si se utilizan métodos de orlado sobre superficies. En este trabajo se presentan por primera vez, en el ámbito de la evaluación altimétrica de MDE, los métodos de orlado simple (MOS) y doble (MOD) sobre superficies. El estudio se ha realizado sobre datos sintéticos que permiten plantear una situación de estudio predeterminada. Se ha demostrado que ambos métodos permiten la detección de atípicos y sesgos al evaluar S2. Además, se pueden elaborar funciones de distribución observadas, que eliminen la necesidad considerar hipótesis de normalidad sobre las discrepancias.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Traditionally, the altimetric accuracy assessment of digital elevation models (DEM) has been carried out using standards (e.g., National Standard for Spatial Data Accuracy) based on sampling of points in the reference model (S1) and in the model to be assessed (S2). These standards have two drawbacks: 1) the points are scarce compared to the total surface of a DEM and therefore they leave a large ground area not assessed, 2) the surface assessment is carried out comparing points, when it seems more suitable to assess by surfaces comparison. Both drawbacks can be overcome by surface buffer methods. This work presents for the first time in the altimetric assessment field the methods of single buffer (MOS) and double buffer (MOD) on surfaces. The study has been carried out on synthetic data. It has been proved that both methods allow the detection of outliers and biases when assessed S2. In addition, observed distribution functions can be elaborated, which eliminate the need to consider normality hypotheses about the discrepancies and allow applying some quality control techniques through tolerances.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[error]]></kwd>
<kwd lng="es"><![CDATA[exactitud]]></kwd>
<kwd lng="es"><![CDATA[incertidumbre]]></kwd>
<kwd lng="es"><![CDATA[orlado]]></kwd>
<kwd lng="es"><![CDATA[modelo digital de elevaciones MDE]]></kwd>
<kwd lng="es"><![CDATA[calidad]]></kwd>
<kwd lng="en"><![CDATA[error]]></kwd>
<kwd lng="en"><![CDATA[accuracy]]></kwd>
<kwd lng="en"><![CDATA[uncertainty]]></kwd>
<kwd lng="en"><![CDATA[buffer]]></kwd>
<kwd lng="en"><![CDATA[digital elevation model]]></kwd>
<kwd lng="en"><![CDATA[quality]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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