<?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>2007-4026</journal-id>
<journal-title><![CDATA[Ingeniería agrícola y biosistemas]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. agric. biosist.]]></abbrev-journal-title>
<issn>2007-4026</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Chapingo]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-40262017000200085</article-id>
<article-id pub-id-type="doi">10.5154/r.inagbi.2017.03.007</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Quantification of the error of digital terrain models derived from images acquired with UAV]]></article-title>
<article-title xml:lang="es"><![CDATA[Cuantificación del error de modelos digitales de terreno derivados de imágenes adquiridas con UAV]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Jiménez]]></surname>
<given-names><![CDATA[Sergio Iván]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ojeda-Bustamante]]></surname>
<given-names><![CDATA[Waldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ontiveros-Capurata]]></surname>
<given-names><![CDATA[Ronald Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-Velázquez]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marcial-Pablo]]></surname>
<given-names><![CDATA[Mariana de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Robles-Rubio]]></surname>
<given-names><![CDATA[Braulio David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano de Tecnología del Agua  ]]></institution>
<addr-line><![CDATA[Jiutepec Morelos]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>9</volume>
<numero>2</numero>
<fpage>85</fpage>
<lpage>100</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40262017000200085&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40262017000200085&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40262017000200085&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Topographic surveys based on traditional methods (total stations and GPS) enable representing in detail the characteristics of the terrestrial surface, but they mean a high cost in terms of resources and time. With the use of unmanned aerial vehicles (UAVs) it is possible to obtain digital terrain models (DTMs) with high spatial resolution, but they require field validation to obtain high-accuracy topographic products.  Objective: To estimate the precision of DTMs generated from high-resolution images acquired with a UAV by means of the geolocation of 23 terrestrial points (11 control and 12 verification ones) obtained in the field with a GPS-RTK (Global Positioning System - Real Time Kinematic).  Materials and methods: For the generation of each DTM, a photogrammetric restitution process with a different number of Ground Control Points (GCPs) was used: 4, 5, 6, 8, 9, 10 and 11. To evaluate the precision of the DTMs, four statistical parameters were used.  Results and discussion: The DTM processed with four points had a root-mean-square error (RMSE) &gt; 3 m, and those of 9, 10 and 11 had an RMSE &lt; 7 cm. The georeferenced DTM with 11 GCPs represented the topography of the site with better accuracy. The largest RMSE was 5.9 cm, which is less than three times the spatial resolution of the orthomosaic (2 cm·pixel-1).  Conclusions: At least five terrestrial GCPs are well distributed throughout the study area for every 15 ha of surveyed area; in addition, it is necessary to add one point for each additional 3 ha to obtain a minimum accuracy of 6 cm on the Z axis and 7 cm on the plane (X, Y, Z).]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Los levantamientos topográficos basados en métodos tradicionales (estaciones totales y GPS) permiten representar con detalle las características de la superficie terrestre, pero significan un costo alto de recursos y tiempo. Con el uso de vehículos aéreos no tripulados (UAVs, por sus siglas en inglés) es posible obtener modelos digitales de terreno (MDT) de alta resolución espacial, pero requieren validación en campo para obtener productos topográficos de alta precisión.  Objetivo: Estimar la precisión de los MDT generados a partir de imágenes de alta resolución adquiridas con un UAV mediante la geolocalización de 23 puntos terrestres (11 de control y 12 de verificación) obtenidos en campo con un GPS-RTK (Global Positioning System - Real Time Kinematic).  Materiales y métodos: Para la generación de cada MDT se utilizó un proceso de restitución fotogramétrica con diferente cantidad de puntos de control terrestre (PCT): 4, 5, 6, 8, 9, 10 y 11, y para evaluar la precisión de los MDT se usaron cuatro parámetros estadísticos.  Resultados y discusión: El MDT procesado con cuatro puntos tuvo una raíz del cuadrado medio del error (RCME) &gt; 3 m, y los de 9, 10 y 11 presentaron una RCME &lt; 7 cm. El MDT georreferenciado con 11 PC representó con mejor precisión la topografía del sitio. La mayor RCME fue de 5.9 cm, la cual es menor a tres veces la resolución espacial del ortomosaico (2 cm·píxel-1).  Conclusiones: Son indispensables al menos cinco PC terrestres bien distribuidos a lo largo de la zona de estudio por cada 15 ha de superficie levantada; además, es necesario agregar un punto por cada 3 ha adicionales para obtener una precisión mínima de 6 cm en el eje Z y de 7 cm en el plano (X, Y, Z).]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[photogrammetry]]></kwd>
<kwd lng="en"><![CDATA[high resolution topography]]></kwd>
<kwd lng="en"><![CDATA[Ground Control Points]]></kwd>
<kwd lng="en"><![CDATA[point clouds]]></kwd>
<kwd lng="en"><![CDATA[flight plan]]></kwd>
<kwd lng="en"><![CDATA[drone]]></kwd>
<kwd lng="es"><![CDATA[fotogrametría]]></kwd>
<kwd lng="es"><![CDATA[topografía de alta resolución]]></kwd>
<kwd lng="es"><![CDATA[puntos de control terrestre]]></kwd>
<kwd lng="es"><![CDATA[nubes de puntos]]></kwd>
<kwd lng="es"><![CDATA[plan de vuelo]]></kwd>
<kwd lng="es"><![CDATA[dron]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<collab>Agisoft</collab>
<source><![CDATA[Agisoft PhotoScan user manual: professional edition]]></source>
<year>2016</year>
<publisher-loc><![CDATA[San Petersburgo, Rusia ]]></publisher-loc>
<publisher-name><![CDATA[Author]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bowen]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Waltermire]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of light detection and ranging (LIDAR) for measuring river corridor topography]]></article-title>
<source><![CDATA[Journal of the American Water Resources]]></source>
<year>2002</year>
<volume>38</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>33-41</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cavallini]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Mancini]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Zanni]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Orthorectification of HR satellite images with space derived DSM]]></source>
<year>2004</year>
<conf-name><![CDATA[ XXthCongress International Archives of Photogrammetry and Remote]]></conf-name>
<conf-loc> </conf-loc>
<page-range>1682-700</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cabezos]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Cisneros]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fotogrametría con cámaras digitales convencionales y software libre]]></article-title>
<source><![CDATA[Revista de Expresión Gráfica Arquitectónica]]></source>
<year>2012</year>
<volume>20</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>88-99</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cryderman]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Bill-Mah]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Shufletoski]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of UAV photogrammetric accuracy for mapping and earthworks computations]]></article-title>
<source><![CDATA[Geomática]]></source>
<year>2015</year>
<volume>68</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>309-17</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="">
<collab>DJI</collab>
<source><![CDATA[A2 Especificaciones]]></source>
<year>2017</year>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Eisenbeiss]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Lambers]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Sauerbier]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
</person-group>
<source><![CDATA[Photogrammetric documentation of an archaeological site (Palpa, Peru) using an autonomous model helicopter]]></source>
<year>2005</year>
<conf-name><![CDATA[ XXInternational Symposium CIPA]]></conf-name>
<conf-loc> </conf-loc>
<page-range>1-6</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Flener]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Vaaja]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaakkola]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Krooks]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kaartinen]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Kukko]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kasvi]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Hyyppä]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Hyyppä]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Alho]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Seamless mapping of river channels at high resolution using mobile LiDAR and UAV-Photography]]></article-title>
<source><![CDATA[Remote Sensing]]></source>
<year>2013</year>
<volume>5</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>6382-407</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fook]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<source><![CDATA[3D Terrestrial Laser Scanning for Application in Earthwork and Topographical Surveys]]></source>
<year>2008</year>
<publisher-loc><![CDATA[Australia ]]></publisher-loc>
<publisher-name><![CDATA[University of Southern Queensland, Faculty of Engineering and Surveying]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fuentes]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Bolaños]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rozo]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modelo digital de superficie a partir de imágenes de satélite IKONOS para el análisis de áreas de inundación en santa marta, Colombia]]></article-title>
<source><![CDATA[Boletín de Investigaciones Marinas y Costeras]]></source>
<year>2012</year>
<volume>41</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>251-66</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez-Candón]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[de Castro]]></surname>
<given-names><![CDATA[A. I.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Granados]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessing the accuracy of mosaics from unmanned aerial vehicle (UAV) imagery for precision agriculture purposes in wheat]]></article-title>
<source><![CDATA[Precision Agriculture]]></source>
<year>2014</year>
<volume>15</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>44-56</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Goncalves]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Henriques]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[UAV photogrammetry for topographic monitoring of coastal areas]]></article-title>
<source><![CDATA[Journal of Photogrammetry and Remote Sensing]]></source>
<year>2015</year>
<volume>104</volume>
<page-range>101-11</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Grenzdörffer]]></surname>
<given-names><![CDATA[G. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Engel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Teichert]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<source><![CDATA[The photogrammetric potential of low-cost UAVs in forestry and agriculture]]></source>
<year>2008</year>
<conf-name><![CDATA[ The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XXXVII]]></conf-name>
<conf-loc> </conf-loc>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Haala]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Cramer]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rotherme]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quality of 3d point clouds from highly overlapping UAV imagery]]></article-title>
<source><![CDATA[nternational Archives of the Photogrammetry, Remote Sensingand Spatial Information Sciences]]></source>
<year>2013</year>
<volume>40</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>183-8</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<source><![CDATA[Introducción a la fotogrametría digital]]></source>
<year>2006</year>
<publisher-loc><![CDATA[Madrid, España ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de Castilla la Mancha]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hugenholtz]]></surname>
<given-names><![CDATA[C. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Whitehead]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Brown]]></surname>
<given-names><![CDATA[O. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Barchyn]]></surname>
<given-names><![CDATA[T. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Moorman]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[LeClair]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Riddell]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Hamilton]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geomorphological mapping with a small unmanned aircraft system (sUAS): Feature detection and accuracy assessment of a photogrammetrically-derived digital terrain model]]></article-title>
<source><![CDATA[Geomorphology]]></source>
<year>2013</year>
<volume>194</volume>
<page-range>16-24</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Legleiter]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Remote measurement of river morphology via fusion of LiDAR topography and spectrally based bathymetry]]></article-title>
<source><![CDATA[Earth Surface Processes and Landforms]]></source>
<year>2012</year>
<volume>37</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>499-518</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lucieer]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Jong]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Turner]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mapping landslide displacements using structure from motion (SfM) and image correlation of multi-temporal UAV photography]]></article-title>
<source><![CDATA[Progress In Physical Geography]]></source>
<year>2014</year>
<volume>38</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>97-116</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mancini]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Dubbini]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gattelli]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Stecchi]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Gabbianelli]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Using unmanned aerial vehicles (UAV) for high-resolution reconstruction of topography: The structure from motion approach on coastal environments]]></article-title>
<source><![CDATA[Remote Sensing]]></source>
<year>2013</year>
<volume>5</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>6680-898</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Neitzel]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Klonowski]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mobile 3D mapping with a low-cost UAV system]]></article-title>
<source><![CDATA[International Archives of the Photogrammetry, Remote Sensingand Spatial Information Sciences]]></source>
<year>2012</year>
<volume>XXXVIII-1</volume>
<numero>C22</numero>
<issue>C22</issue>
<page-range>39-44</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nex]]></surname>
<given-names><![CDATA[F. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Remondino]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[UAV for 3D mapping applications: A review]]></article-title>
<source><![CDATA[Applied Geomatics]]></source>
<year>2014</year>
<volume>6</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-15</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Notebaert]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Verstraeten]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Govers]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Poesen]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Qualitative and quantitative applications of LiDAR imagery in fuvial geomorphology]]></article-title>
<source><![CDATA[Earth Surface Processes and Landforms]]></source>
<year>2009</year>
<volume>34</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>217-31</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pachas]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El levantamiento topográfico: uso del GPS y estación total]]></article-title>
<source><![CDATA[Academia]]></source>
<year>2009</year>
<volume>8</volume>
<numero>16</numero>
<issue>16</issue>
<page-range>29-45</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Peinado-Checa]]></surname>
<given-names><![CDATA[Z. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Agustín-Hernández]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Combinación de fotogrametría terrestre y áerea de bajo coste: el levantamiento tridimensional de la iglesia de San Miguel de Ágreda (Soria)]]></article-title>
<source><![CDATA[Virtual Archaeology Review]]></source>
<year>2014</year>
<volume>5</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>51-8</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Siebert]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Teizer]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mobile 3D mapping for surveying earthwork projects using an unmanned aerial vehicle (UAV) system]]></article-title>
<source><![CDATA[Automation in Construction]]></source>
<year>2014</year>
<volume>41</volume>
<page-range>1-14</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tamminga]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hugenholtz]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Eaton]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Lapointe]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hyperspatial remote sensing of channel reach morphology and hydraulic fish habitat using an unmanned aerial vehicle (UAV): A first assessment in the context of river research and management]]></article-title>
<source><![CDATA[River Research and Applications]]></source>
<year>2014</year>
<volume>31</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>379-91</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Villate]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<source><![CDATA[Topografía]]></source>
<year>2001</year>
<publisher-loc><![CDATA[Bogotá ]]></publisher-loc>
<publisher-name><![CDATA[Escuela Colombiana de Ingeniería]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Uysal]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Toprak]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Polat]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[DEM generation with UAV photogrammetry and accuracy analysis in Sahitler hill]]></article-title>
<source><![CDATA[Measurement]]></source>
<year>2015</year>
<volume>73</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>539-43</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="">
<collab>Weather channel</collab>
<source><![CDATA[The weather channel]]></source>
<year>2017</year>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Westoby]]></surname>
<given-names><![CDATA[M. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Brasington]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Glasser]]></surname>
<given-names><![CDATA[N. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Hambrey]]></surname>
<given-names><![CDATA[M. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Reynolds]]></surname>
<given-names><![CDATA[J. M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[&#8220;Structure-from-motion&#8221; photogrammetry: A low-cost, effective tool for geoscience applications]]></article-title>
<source><![CDATA[Geomorphology]]></source>
<year>2012</year>
<volume>179</volume>
<page-range>300-14</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Williams]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Brasington]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hicks]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Measures]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Rennie]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Vericat]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hydraulic validation of two-dimensional simulations of braided river flow with spatially continuous aDcp data]]></article-title>
<source><![CDATA[Water Resources Research]]></source>
<year>2013</year>
<volume>49</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>5183-205</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Willmott]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Matsuura]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Advantages of the mean absolute error (MAE) over the root mean square error (RMSE) in assessing average model performance]]></article-title>
<source><![CDATA[Climate Research]]></source>
<year>2005</year>
<volume>30</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>79-82</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Pateraki]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Baltsavias]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Matching of ikonos stereo and multitemporal GEO images for DSM generation]]></article-title>
<source><![CDATA[ETH, Swiss Federal Institute of Technology, Institute of Geodesy and Photogrammetry]]></source>
<year>2002</year>
<page-range>1-7</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
