<?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>2215-2563</journal-id>
<journal-title><![CDATA[Revista Geográfica de América Central]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Geog. Amer. Central]]></abbrev-journal-title>
<issn>2215-2563</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2215-25632020000100075</article-id>
<article-id pub-id-type="doi">10.15359/rgac.64-1.4</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Playas críticas por erosión costera en el caribe sur de Costa Rica, durante el periodo 2005-2016]]></article-title>
<article-title xml:lang="en"><![CDATA[Critical beaches due to coastal erosion in the Caribbean south of Costa Rica during the period 2005-2016]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrantes-Castillo]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arozarena-Llopis]]></surname>
<given-names><![CDATA[Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sandoval-Murillo]]></surname>
<given-names><![CDATA[Luis Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valverde-Calderón]]></surname>
<given-names><![CDATA[José Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Escuela de Ciencias Geográficas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Departamento de Física ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Escuela de Ciencias Geográficas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional Escuela de Topografía Catastro y Catastro ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<numero>64</numero>
<fpage>75</fpage>
<lpage>102</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S2215-25632020000100075&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S2215-25632020000100075&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S2215-25632020000100075&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Desde el 2010 en la prensa local se ha venido reportando un proceso acelerado de erosión en playas arenosas del litoral caribeño costarricense, que incluso ha sido documentado al interior de las áreas protegidas. Para cuantificar este proceso e identificar los puntos calientes por erosión costera en el Caribe Sur, se planteó una metodología que consiste en levantar la línea de costa a partir de fotografías áreas e imágenes satelitales de alta resolución espacial, con el fin de determinar la tasa de retroceso de la costa. Las fotos e imágenes utilizadas cubren un periodo entre 2005 y 2016. De esta forma fue posible identificar once puntos calientes de erosión, así como la estimación de sus tasas areales de retroceso para dos periodos (2005-2010 y 2010-2016). En este sentido, las localidades que han experimentado la mayor erosión en sus playas arenosas son el Parque Nacional Cahuita, Westfalia y playa Bananito.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Since 2010, the local press has been reporting an accelerated process of erosion on the sandy beaches of the Costa Rican Caribbean coast, it has even been documented within protected areas. To quantify this process and identify coastal erosion hotspots in the Caribbean south, a methodology was proposed for detecting and delineating the shoreline using aerial photographs and high-resolution satellite imagery to determine the rate of coastline retreat, the employed photographs and images cover the period between 2005 and 2016. By such means it was possible to identify eleven erosion hotspots, as well as estimation of their retreat rates for the periods 2005-2010 and 2010-2016. The localities that have experienced the greatest erosion of their sandy beaches are Cahuita National Park, Westfalia and Bananito Beach.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Erosión costera]]></kwd>
<kwd lng="es"><![CDATA[Caribe costarricense]]></kwd>
<kwd lng="es"><![CDATA[dinámica costera]]></kwd>
<kwd lng="es"><![CDATA[provincia de Limón]]></kwd>
<kwd lng="es"><![CDATA[erosión de playas.]]></kwd>
<kwd lng="en"><![CDATA[Coastal erosion]]></kwd>
<kwd lng="en"><![CDATA[Costa Rican Caribbean]]></kwd>
<kwd lng="en"><![CDATA[Coastal dynamics]]></kwd>
<kwd lng="en"><![CDATA[Limón province]]></kwd>
<kwd lng="en"><![CDATA[Erosion of beaches.]]></kwd>
</kwd-group>
</article-meta>
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