<?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>0187-6236</journal-id>
<journal-title><![CDATA[Atmósfera]]></journal-title>
<abbrev-journal-title><![CDATA[Atmósfera]]></abbrev-journal-title>
<issn>0187-6236</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-62362018000400347</article-id>
<article-id pub-id-type="doi">10.20937/atm.2018.31.04.03</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Performance evaluation of a coupled method for the estimation of daily global solar radiation on a horizontal surface]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ener Ru&#351;en]]></surname>
<given-names><![CDATA[Selmin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Karamanoglu Mehmetbey University Faculty of Engineering Department of Energy Systems Engineering]]></institution>
<addr-line><![CDATA[Karaman ]]></addr-line>
<country>Turkey</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<volume>31</volume>
<numero>4</numero>
<fpage>347</fpage>
<lpage>354</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-62362018000400347&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-62362018000400347&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-62362018000400347&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The accurate estimation of the amount of global solar radiation potential on the earth&#8217;s surface is one of the most important parameters for solar energy investments and long-term climate studies. The most accurate solar radiation data are generally available in some ground stations where they are obtained by using direct measurement. However, the estimation of global solar radiation data can be conducted by some estimation methods in the areas that do not have this information. This study compares and discusses some approaches to identify the most accurate method for daily global solar radiation reaching on a horizontal surface. The comparisons are carried out between some selected conventional empirical methods taken from the related literature, the satellite-based HELIOSAT method and the coupled (hybrid) method which uses both ground data and satellite images. These selected methods have been tested previously and declared most accurate by many researchers for Turkey. The performance results were compared with ground-measured data and all methods were analyzed by using statistical errors in the selected site. According to the last six years of data results, the coupled method is better than the others (except the Angstrom method), with daily difference values (91%) and daily absolute difference values lower than 2.5 MJ m-2 day.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El cálculo exacto de la cantidad de radiación solar global potencial en la superficie de la tierra es uno de los parámetros más importantes para las inversiones en energía solar y los estudios de largo plazo sobre cambio climático. Por lo general, los datos más exactos de radiación solar están disponibles en estaciones terrestres que realizan mediciones directas. No obstante, en áreas donde esta información no es asequible, la radiación solar global puede estimarse utilizando algunos métodos de cálculo. En este estudio se comparan y analizan algunos métodos para estimar la radiación solar global que llega a una superficie horizontal, con el fin de establecer cuál es el más exacto. Las comparaciones se llevan a cabo entre algunos métodos empíricos convencionales obtenidos de la literatura, el método HELIOSAT basado en satélites y el método acoplado (híbrido) que emplea tanto datos de superficie como imágenes satelitales. Estos métodos se han probado antes y diversos investigadores han demostrado que son los más exactos para Turquía. Los resultados obtenidos sobre el desempeño se compararon con mediciones de superficie y todos los métodos se analizaron por medio de errores estadísticos en el sitio elegido. De acuerdo con los resultados de los últimos seis años de datos, el método acoplado (excepto en el caso del método Angstrom) es mejor que los otros, con valores diferenciales diarios (91%) y valores diferenciales diarios absolutos de menos de 2.5 MJ m-2 por día.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Solar radiation estimation]]></kwd>
<kwd lng="en"><![CDATA[coupled method]]></kwd>
<kwd lng="en"><![CDATA[satellite image]]></kwd>
<kwd lng="en"><![CDATA[HELIOSAT]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Akinoglu]]></surname>
<given-names><![CDATA[B.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Ecevit]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Construction of a quadratic model using modified angstrom coefficients to estimate global solar radiation]]></article-title>
<source><![CDATA[Sol. Energy]]></source>
<year>1990</year>
<volume>45</volume>
<page-range>85-92</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aktag]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Yilmaz]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A suitable model to estimate global solar radiation in Black Sea shoreline countries]]></article-title>
<source><![CDATA[Energ. Source Part A]]></source>
<year>2012</year>
<volume>34</volume>
<page-range>1628-36</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alonso-Montesinos]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Batlles F. J.]]></surname>
<given-names><![CDATA[Bosch J. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Beam, diffuse and global solar irradiance estimation with satellite imagery]]></article-title>
<source><![CDATA[Energ. Convers. Manage.]]></source>
<year>2015</year>
<volume>105</volume>
<page-range>1205-12</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Badescu]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Popovi&#263;]]></surname>
<given-names><![CDATA[Z.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Laurentiu]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Boji&#263;]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Preface to Special Issue: Renewable Energy in South-Eastern Europe]]></article-title>
<source><![CDATA[J. Renew. Sustain. Energ.]]></source>
<year>2013</year>
<volume>5</volume>
<page-range>41701</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bakirci]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Correlations for estimation of daily global solar radiation with hours of bright sunshine in Turkey]]></article-title>
<source><![CDATA[Energy]]></source>
<year>2009</year>
<volume>34</volume>
<page-range>485-501</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beyer]]></surname>
<given-names><![CDATA[H.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Costanzo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Heinemann]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modifications of the Heliosat procedure for irradiance estimates from satellite images]]></article-title>
<source><![CDATA[Sol. Energy]]></source>
<year>1996</year>
<volume>56</volume>
<page-range>207-12</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cano]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Monget]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Albuisson]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Guillard]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Regas]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Wald]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A method for the determination of the global solar radiation from meteorological satellite data]]></article-title>
<source><![CDATA[Sol. Energy]]></source>
<year>1986</year>
<volume>37</volume>
<page-range>31-9</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dagestad]]></surname>
<given-names><![CDATA[K.F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estimating global radiation at ground level from satellite images]]></source>
<year>2005</year>
<publisher-loc><![CDATA[Norway ]]></publisher-loc>
<publisher-name><![CDATA[University of Bergen]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Duffie]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Beckman]]></surname>
<given-names><![CDATA[W.A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Solar engineering of thermal processing]]></source>
<year>1991</year>
<edition>2nd</edition>
<page-range>936</page-range><publisher-name><![CDATA[John Wiley and Sons]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[El Mghouchi]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[El Bouardi]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Choulli]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Ajzoul]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Models for obtaining the daily direct, diffuse and global solar radiations]]></article-title>
<source><![CDATA[Renew. Sust. Energ. Rev.]]></source>
<year>2016</year>
<volume>56</volume>
<page-range>87-99</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ener Ru&#351;en]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Linking satellite imagery to bright sunshine hours for the estimation of global solar irradiation]]></source>
<year>2013</year>
<publisher-loc><![CDATA[Ankara, Turkey ]]></publisher-loc>
<publisher-name><![CDATA[Middle East Technological Univeristy]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ener Ru&#351;en]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Hammer]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Akinoglu]]></surname>
<given-names><![CDATA[B.G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimation of daily global solar irradiation by coupling ground measurements of bright sunshine hours to satellite imagery]]></article-title>
<source><![CDATA[Energy]]></source>
<year>2013</year>
<volume>58</volume>
<page-range>417-25</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ener Ru&#351;en]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The performance evaluation of a new model based on bright sunshine hours and satellite imagery, for the estimation of daily global solar radiation for two locations in Turkey]]></article-title>
<source><![CDATA[Journal of Environmental Science]]></source>
<year>2015</year>
<volume>4</volume>
<page-range>1-9</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ener Ru&#351;en]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modeling and analysis of global and diffuse solar irradiation components using the satellite estimation method of HELIOSAT]]></article-title>
<source><![CDATA[CMES-Comp. Model. Eng.]]></source>
<year>2018</year>
<volume>115</volume>
<page-range>327-43</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gana]]></surname>
<given-names><![CDATA[N.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Akpootu]]></surname>
<given-names><![CDATA[D.O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Angstrom type empirical correlation for estimating global solar radiation in north-eastern Nigeria]]></article-title>
<source><![CDATA[Journal of Engineering and Science]]></source>
<year>2013</year>
<volume>2</volume>
<page-range>58-78</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hammer]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Anwendungspezifische solarstrahlungsinformationen aus meteosat-daten (Application of specific solar irradiance information from Meteosat data)]]></source>
<year>2000</year>
<publisher-loc><![CDATA[Oldenburg ]]></publisher-loc>
<publisher-name><![CDATA[Carl von Ossietzky University]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hammer]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Heinemann]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Lorenz]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Lückehe]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Short-term forecasting of solar radiation: A statistical approach using satellite data]]></article-title>
<source><![CDATA[Sol. Energy]]></source>
<year>2000</year>
<volume>67</volume>
<page-range>139-50</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kandirmaz]]></surname>
<given-names><![CDATA[H.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Kaba]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Avci]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimation of monthly sunshine duration in Turkey using artificial neural networks]]></article-title>
<source><![CDATA[Int. J. Photoenergy]]></source>
<year>2014</year>
<volume>2014</volume>
<page-range>1-9</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Qin]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A simple and efficient algorithm to estimate daily global solar radiation from geostationary satellite data]]></article-title>
<source><![CDATA[Energy]]></source>
<year>2011</year>
<volume>36</volume>
<page-range>3179-88</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Massen]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Sunshine duration from pyranometer readings]]></source>
<year>2011</year>
<page-range>22</page-range><publisher-name><![CDATA[Luxembourg]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Muneer]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Solar radiation and daylight models]]></source>
<year>2004</year>
<page-range>392</page-range><publisher-loc><![CDATA[Amsterdam, New York ]]></publisher-loc>
<publisher-name><![CDATA[Elsevier]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Myers]]></surname>
<given-names><![CDATA[D.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Solar radiation modeling and measurements for renewable energy applications: Data and model quality]]></article-title>
<source><![CDATA[International Expert Conference on Mathematical Modeling of Solar Radiation and Daylight Challenges for the 21st Century]]></source>
<year>2003</year>
<page-range>1-15</page-range><publisher-loc><![CDATA[Edinburgh, Scotland ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Seals]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Zelenka]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparing satellite remote sensing and ground network measurements for the production of site/time specific irradiance data]]></article-title>
<source><![CDATA[Sol. Energy]]></source>
<year>1997</year>
<volume>60</volume>
<page-range>89-96</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tasdemiroglu]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Sever]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimation of monthly average, daily, horizontal diffuse radiation in Turkey]]></article-title>
<source><![CDATA[Energy]]></source>
<year>1991</year>
<volume>16</volume>
<page-range>787-90</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Teke]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Y&#305;ld&#305;r&#305;m]]></surname>
<given-names><![CDATA[H.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Çelik]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation and performance comparison of different models for the estimation of solar radiation]]></article-title>
<source><![CDATA[Renew. Sust. Energ. Rev.]]></source>
<year>2015</year>
<volume>50</volume>
<page-range>1097-107</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Threwartha]]></surname>
<given-names><![CDATA[G.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Lyle]]></surname>
<given-names><![CDATA[H.H.]]></given-names>
</name>
</person-group>
<source><![CDATA[An introduction to climate]]></source>
<year>1968</year>
<edition>5th</edition>
<page-range>416</page-range><publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[McGraw Hill]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ulgen]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Hepbasli]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimation of solar radiation parameters for Izmir]]></article-title>
<source><![CDATA[Int. J, Ener. Res.]]></source>
<year>2002</year>
<volume>26</volume>
<page-range>807-23</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ulgen]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Hepbasli]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diffuse solar radiation estimation models for Turkey&#8217;s big cities]]></article-title>
<source><![CDATA[Energ. Convers. Manage.]]></source>
<year>2009</year>
<volume>50</volume>
<page-range>149-56</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vecan]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Measurement and comparison of solar radiation estimation models for Izmir, Turkey]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Turkey ]]></publisher-loc>
<publisher-name><![CDATA[Izmir Institute of Technology]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yilmaz]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Zonal comparison in measured and predicted global solar radiation in Turkey and Chile]]></article-title>
<source><![CDATA[Energ. Source. Part A]]></source>
<year>2010</year>
<volume>32</volume>
<page-range>1454-9</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
