<?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>0016-7169</journal-id>
<journal-title><![CDATA[Geofísica internacional]]></journal-title>
<abbrev-journal-title><![CDATA[Geofís. Intl]]></abbrev-journal-title>
<issn>0016-7169</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Geofísica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0016-71692017000400317</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Hydraulic conductivities identification via Ensemble Kalman Filtering with transformed data considering the risk of systematic bias]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vázquez-Guillén]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Auvinet]]></surname>
<given-names><![CDATA[Guichard]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Ingeniería Coordinación de Geotecnia y Estructuras]]></institution>
<addr-line><![CDATA[México CDMX]]></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>56</volume>
<numero>4</numero>
<fpage>317</fpage>
<lpage>333</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0016-71692017000400317&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0016-71692017000400317&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0016-71692017000400317&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In subsurface hydrology, Ensemble Kalman Filtering (EnKF) has been coupled with groundwater flow and transport models to solve the inverse problem. Several extensions of the EnKF have been proposed to improve its performance when dealing with non-multi-Gaussian random field models of the hydraulic conductivity. One such variant is the EnKF with transformed data (tEnKF), which uses Gaussian anamorphosis within a conditioning step. Although this transformation has been used in the past to identify hydraulic conductivities, previous studies have ignored the risk of introducing a systematic bias in the spatiotemporal evolution of the hydraulic head field during the forecast steps that the update steps may not correct over time. This paper proposes that in order to evaluate the performance of tEnKFs, applications in synthetically generated random porous media should take into account this risk by incorporating prior knowledge with a multi-Gaussian conductivity correlation structure, and by adopting a reference field with asymmetric correlation structure. As an example of this application, hydraulic conductivities using the tEnKF were identified by solving a one-dimensional, single phase flow problem in a continuous random porous medium. Common concepts in Geostatistics are used to explain the hypothesis underlying both EnKF and tEnKF and to establish a clear link between the tEnKF and the stochastic simulation of conditional random fields.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En hidrología subterránea, el conjunto de filtros Kalman (EnKF) se acopla con modelos del flujo y transporte de agua subterránea para resolver el problema inverso. Se han propuesto varias extensiones del EnKF para mejorar su desempeño al tratar con campos aleatorios no multi-gaussianos de la conductividad hidráulica. Una de esas variantes es el EnKF con transformación de datos (tEnKF), el cual utiliza la anamorfosis gaussiana dentro de una etapa de condicionamiento. Aunque esta transformación se ha utilizado en el pasado para identificar conductividades hidráulicas, estudios previos han ignorado el riesgo de introducir un sesgo sistemático en la evolución espaciotemporal del campo de la carga hidráulica durante las etapas de pronostico que las etapas de condicionamiento podrían no corregir conforme trascurre el tiempo. Este artículo propone que la aplicación del tEnKF en medios porosos aleatorios generados sintéticamente debe tener en cuenta este riesgo incorporando en el conocimiento a priori una estructura de correlación multi-gaussiana para las conductividades y adoptando un campo de referencia con estructura de correlación asimétrica. Como un ejemplo de esta aplicación, en este artículo se identifican conductividades hidráulicas utilizando el tEnKF resolviendo un problema de flujo monofásico, unidimensional, en un medio poroso aleatorio continuo. Se utilizan conceptos comunes en geoestadística para explicar las hipótesis en las que se basan el EnKF y el tEnKF y también para establecer un vínculo claro entre el tEnKF y la simulación estocástica de campos aleatorios condicionales.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Stochastic simulation]]></kwd>
<kwd lng="en"><![CDATA[conditional random fields]]></kwd>
<kwd lng="en"><![CDATA[Gaussian anamorphosis]]></kwd>
<kwd lng="en"><![CDATA[inverse problem]]></kwd>
<kwd lng="en"><![CDATA[Non multi-Gaussian random fields]]></kwd>
<kwd lng="es"><![CDATA[Simulación estocástica]]></kwd>
<kwd lng="es"><![CDATA[campos aleatorios condicionales]]></kwd>
<kwd lng="es"><![CDATA[anamorfosis gaussiana]]></kwd>
<kwd lng="es"><![CDATA[problema inverso]]></kwd>
<kwd lng="es"><![CDATA[campos aleatorios no multi-gaussianos]]></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[Bárdossy]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geostatistical interpolation using copulas]]></article-title>
<source><![CDATA[Water Resour. Res.]]></source>
<year>2008</year>
<volume>44</volume>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bárdossy]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hörning]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Gaussian and non-Gaussian inverse modeling of groundwater flow using copulas and random mixing]]></article-title>
<source><![CDATA[Water Resour. Res.]]></source>
<year>2016</year>
<volume>52</volume>
<page-range>4504-26</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Béal]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Brasseur]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Brankart]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ourmieres]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Verron]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characterization of mixing errors in a coupled physical biogeochemical model of the North Atlantic: implications for nonlinear estimation using Gaussian anamorphosis]]></article-title>
<source><![CDATA[Ocean Sci.]]></source>
<year>2010</year>
<volume>6</volume>
<page-range>247-62</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bertino]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Evensen]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Wackernagel]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sequential Data Assimilation Techniques in Oceanography]]></article-title>
<source><![CDATA[Int. Statis. Rev.]]></source>
<year>2003</year>
<volume>71</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>223-41</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Billingsley]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Probability and measure]]></source>
<year>1995</year>
<edition>3rd</edition>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Wiley]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bodas-Salcedo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Baeza]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Martinez]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Mateu]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Montes]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spatiotemporal modeling and prediction of solar radiation]]></article-title>
<source><![CDATA[J. of Geophys. Res.]]></source>
<year>2003</year>
<volume>108</volume>
<page-range>D24-8777</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Burgers]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[van Leeuwen]]></surname>
<given-names><![CDATA[P.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Evensen]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analysis scheme in the Ensemble Kalman Filter]]></article-title>
<source><![CDATA[Mon. Weather Rev.]]></source>
<year>1998</year>
<volume>126</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1719-24</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Capilla]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Llopis -Albert]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Gradual conditioning of non-Gaussian transmissivity fields to flow and mass transport data: 1, Theory]]></article-title>
<source><![CDATA[J. Hydrol.]]></source>
<year>2009</year>
<volume>371</volume>
<page-range>66-74</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chilès]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Delfiner]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Geostatistics: modeling spatial uncertainty]]></source>
<year>1999</year>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Wiley]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dagan]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Flow and transport in porous formations]]></source>
<year>1989</year>
<publisher-loc><![CDATA[Berlin, Germany ]]></publisher-loc>
<publisher-name><![CDATA[Springer-Verlag]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Deutsch]]></surname>
<given-names><![CDATA[C.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Journel]]></surname>
<given-names><![CDATA[A.G.]]></given-names>
</name>
</person-group>
<source><![CDATA[GSLIB, Geostatistical Library and User&#8217;s Guide]]></source>
<year>1992</year>
<publisher-loc><![CDATA[Oxford, N. Y., USA ]]></publisher-loc>
<publisher-name><![CDATA[Oxford University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elsheikh]]></surname>
<given-names><![CDATA[A.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Wheeler]]></surname>
<given-names><![CDATA[M.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Hoteit]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An iterative stochastic ensemble method for parameter estimation of subsurface flow models]]></article-title>
<source><![CDATA[J. of Comput. Phys.]]></source>
<year>2013</year>
<volume>242</volume>
<page-range>696-714</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Emerick]]></surname>
<given-names><![CDATA[A.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Investigation on Principal Component Analysis Parameterizations for History Matching Channelized Facies Models with Ensemble-Based Data Assimilation]]></article-title>
<source><![CDATA[Mathematical Geosciences]]></source>
<year>2017</year>
<volume>49</volume>
<page-range>85-120</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Erdal]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Rahman]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Neuweiler]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The importance of state transformations when using the ensemble Kalman filter for unsaturated flow modeling: Dealing with strong nonlinearities]]></article-title>
<source><![CDATA[Adv. Water Resour.]]></source>
<year>2015</year>
<volume>86</volume>
<page-range>354-65</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Evensen]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Using the extended Kalman filter with a multilayer quasi-geostrophic ocean model]]></article-title>
<source><![CDATA[J. Geophys. Res.]]></source>
<year>1992</year>
<volume>97</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>17905-24</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Evensen]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sequential data assimilation with a nonlinear quasi-geostrophic model using Monte Carlo methods to forecast error statistics]]></article-title>
<source><![CDATA[J. Geophys. Res.]]></source>
<year>1994</year>
<volume>99</volume>
<page-range>10143-62</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Evensen]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Data assimilation: the ensemble Kalman Filter]]></source>
<year>2003</year>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gelhar]]></surname>
<given-names><![CDATA[L.W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Stochastic subsurface hydrology]]></source>
<year>1993</year>
<publisher-loc><![CDATA[New Jersey ]]></publisher-loc>
<publisher-name><![CDATA[Pentrice Hall]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Goovaerts]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Geostatistics for natural resources evaluation]]></source>
<year>1997</year>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Oxford University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez-Hernández]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Wen]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Probabilistic assessment of travel times in groundwater modeling]]></article-title>
<source><![CDATA[Stoch. Hydrol Hydraul]]></source>
<year>1994</year>
<volume>8</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>19-55</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez-Hernández]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Wen]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[To be or not to be multi-Gaussian? A reflection on stochastic hydrogeology]]></article-title>
<source><![CDATA[Adv. Water Resour.]]></source>
<year>1998</year>
<volume>21</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>47-61</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez-Hernández]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Sahuquillo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Capilla]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Stochastic Simulation of Transmissivity Fields Conditional to Both Transmissivity and Piezometric Data, 1, Theory]]></article-title>
<source><![CDATA[J. Hydrol.]]></source>
<year>1997</year>
<volume>203</volume>
<page-range>162-74</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Haslauer]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Guthke]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Bárdossy]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Sudicky]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of non-Gaussian copula-based hydraulic conductivity fields on macrodispersion]]></article-title>
<source><![CDATA[Water Resour. Res.]]></source>
<year>2012</year>
<volume>48</volume>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hendricks]]></surname>
<given-names><![CDATA[F.H.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Kinzelbach]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Real-time groundwater flow modeling with the Ensemble Kalman Filter: Joint estimation of states and parameters and the filter inbreeding problem]]></article-title>
<source><![CDATA[Water Resour. Res.]]></source>
<year>2008</year>
<volume>44</volume>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[L.Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Gradual deformation and iterative calibration of Gaussian- related stochastic models]]></article-title>
<source><![CDATA[Math. Geol.]]></source>
<year>2000</year>
<volume>32</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>87-108</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[L.Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhao]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Scheepens]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Bouchard]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Updating multipoint simulations using the ensemble Kalman filter]]></article-title>
<source><![CDATA[Compu. Geosci.]]></source>
<year>2013</year>
<volume>51</volume>
<page-range>7-15</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Johns]]></surname>
<given-names><![CDATA[C.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Mandel]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A two-stage ensemble Kalman filter for smooth data assimilation]]></article-title>
<source><![CDATA[Environ. Ecol. Stat.]]></source>
<year>2008</year>
<volume>15</volume>
<page-range>101-10</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Journel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Alabert]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Non-Gaussian data expansion in the earth sciences]]></article-title>
<source><![CDATA[Terra Nova]]></source>
<year>1989</year>
<volume>1</volume>
<page-range>123-34</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Journel]]></surname>
<given-names><![CDATA[A.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Deutsch]]></surname>
<given-names><![CDATA[C.V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Entropy and spatial disorder]]></article-title>
<source><![CDATA[Math. Geol.]]></source>
<year>1993</year>
<volume>25</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>329-55</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Journel]]></surname>
<given-names><![CDATA[A.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Huijbregts]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mining geostatistics]]></source>
<year>1978</year>
<publisher-loc><![CDATA[San Diego, Calif ]]></publisher-loc>
<publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Journel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The necessity of a multiple point statistical model]]></article-title>
<source><![CDATA[Math. Geol.]]></source>
<year>2006</year>
<volume>38</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>591-610</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kalman]]></surname>
<given-names><![CDATA[R.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A new approach to linear filtering and prediction problems]]></article-title>
<source><![CDATA[J. Basic Eng.]]></source>
<year>1960</year>
<volume>82</volume>
<page-range>35-45</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Katzfuss]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Stroud]]></surname>
<given-names><![CDATA[J.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Wikle]]></surname>
<given-names><![CDATA[C.K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Understanding the Ensemble Kalman Filter]]></article-title>
<source><![CDATA[Am. Stat.]]></source>
<year>2016</year>
<volume>70</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>350-7</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kerrou]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Renard]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Hendricks Franssen]]></surname>
<given-names><![CDATA[H.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Lunati]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Issues in characterizing heterogeneity and connectivity in non-multiGaussian media]]></article-title>
<source><![CDATA[Adv. Water Resour.]]></source>
<year>2008</year>
<volume>31</volume>
<page-range>147-59</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Knudby]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Carrera]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[On the relationship between indicators of geostatistical flow and transport connectivity]]></article-title>
<source><![CDATA[Adv. Water Resour.]]></source>
<year>2005</year>
<volume>28</volume>
<page-range>405-21</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leng]]></surname>
<given-names><![CDATA[C.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Yeh]]></surname>
<given-names><![CDATA[H.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aquifer parameter identification using the extended Kalman filter]]></article-title>
<source><![CDATA[Water Resour. Res.]]></source>
<year>2003</year>
<volume>39</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>1062</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Hendricks]]></surname>
<given-names><![CDATA[F.H.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Hernández]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Groundwater flow inverse modeling in non-MultiGaussian media: performance assessment of the normal -score Ensemble Kalman Filter]]></article-title>
<source><![CDATA[Hydrol. Earth Sys. Sci.]]></source>
<year>2012</year>
<volume>16</volume>
<page-range>573-90</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Srinivasan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Hernández]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A pilot point guided pattern matching approach to integrate dynamic data into geological modeling]]></article-title>
<source><![CDATA[Adv. Water Resour.]]></source>
<year>2013</year>
<volume>62</volume>
<page-range>125-38</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Srinivasan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Hernández]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Simultaneous estimation of geologic and reservoir state variables within an ensemble -based multiple-point statistic framework]]></article-title>
<source><![CDATA[Math. Geosci.]]></source>
<year>2014</year>
<volume>46</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>597-623</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Srinivasan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Hernández]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Two-point or multiple point statistics? A comparison between the ensemble Kalman filtering and the ensemble pattern matching inverse methods]]></article-title>
<source><![CDATA[Adv. Water Resour.]]></source>
<year>2015</year>
<volume>86</volume>
<page-range>297-310</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liang]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Y.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Schilling]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of heterogeneity on spatiotemporal variations of groundwater level in a bounded unconfined aquifer]]></article-title>
<source><![CDATA[Stoch. Environ. Res. Risk Assess.]]></source>
<year>2016</year>
<volume>30</volume>
<page-range>1-8</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[R.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Carter]]></surname>
<given-names><![CDATA[E.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Blue]]></surname>
<given-names><![CDATA[S.T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Data assimilation into nonlinear stochastic models]]></article-title>
<source><![CDATA[Tellus A]]></source>
<year>1999</year>
<volume>51</volume>
<page-range>167-94</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moslehi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[de Barros]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Uncertainty quantification of environmental performance metrics in heterogeneous aquifers with long-range correlations]]></article-title>
<source><![CDATA[J. Contam. Hydrol.]]></source>
<year>2017</year>
<volume>196</volume>
<page-range>21-9</page-range></nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nelsen]]></surname>
<given-names><![CDATA[R.B.]]></given-names>
</name>
</person-group>
<source><![CDATA[An introduction to copulas]]></source>
<year>1997</year>
<publisher-loc><![CDATA[Berlin ]]></publisher-loc>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oliver]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Cunha]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Reynolds]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Markov chain Monte Carlo methods for conditioning a permeability field to pressure data]]></article-title>
<source><![CDATA[Math. Geol.]]></source>
<year>1997</year>
<volume>29</volume>
<page-range>61-91</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[RamaRao]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[LaVenue]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[De Marsily]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Marietta]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pilot point methodology for automated calibration of an ensemble of conditionally simulated transmissivity fields, 1, theory and computational experiments]]></article-title>
<source><![CDATA[Water Resour. Res.]]></source>
<year>1995</year>
<volume>31</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>475-93</page-range></nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reichle]]></surname>
<given-names><![CDATA[R.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Walker]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Koster]]></surname>
<given-names><![CDATA[R.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Houser]]></surname>
<given-names><![CDATA[P.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Extended versus ensemble Kalman filtering for land data assimilation]]></article-title>
<source><![CDATA[J. Hydrometeorol.]]></source>
<year>2002</year>
<volume>3</volume>
<page-range>728-40</page-range></nlm-citation>
</ref>
<ref id="B48">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosenblatt]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Remarks on a multivariate transformation]]></article-title>
<source><![CDATA[The Annals of Mathematical Statistics]]></source>
<year>1952</year>
<volume>23</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>470-2</page-range></nlm-citation>
</ref>
<ref id="B49">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sahuquillo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Capilla]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez- Hernández]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Andreu]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Conditional simulation of transmissivity fields honoring piezometric head data]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Blair]]></surname>
<given-names><![CDATA[W. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Cabrera]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Hydraulic Engineering Software IV, Fluid Flow Modeling]]></source>
<year>1992</year>
<volume>II</volume>
<page-range>201-14</page-range><publisher-loc><![CDATA[London, UK ]]></publisher-loc>
<publisher-name><![CDATA[Elsevier Applied Science]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B50">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sanchez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Infante]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Griffina]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Reya]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spatio-temporal dynamic model and parallelized ensemble Kalman filter for precipitation data]]></article-title>
<source><![CDATA[Braz. J. Probab. Stat.]]></source>
<year>2016</year>
<volume>30</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>653-75</page-range></nlm-citation>
</ref>
<ref id="B51">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sarma]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[W.H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Generalization of the Ensemble Kalman Filter using kernels for non-Gaussian random fields]]></source>
<year>2009</year>
<page-range>1-20</page-range></nlm-citation>
</ref>
<ref id="B52">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schöniger]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Nowak]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Hendricks]]></surname>
<given-names><![CDATA[F.H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Parameter estimation by ensemble Kalman filters with transformed data: Approach and application to hydraulic tomography]]></article-title>
<source><![CDATA[Water Resour. Res.]]></source>
<year>2012</year>
<volume>48</volume>
<page-range>1-18</page-range></nlm-citation>
</ref>
<ref id="B53">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shinozuka]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Equivalence between Kriging and CPDF Methods for Conditional Simulation]]></article-title>
<source><![CDATA[J. Eng. Mech.]]></source>
<year>1996</year>
<volume>122</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>530-8</page-range></nlm-citation>
</ref>
<ref id="B54">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Simon]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Bertino]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Application of the Gaussian anamorphosis to assimilation in a 3D coupled physical ecosystem model of the North Atlantic with the EnKF: a twin experiment]]></article-title>
<source><![CDATA[Ocean Sciences]]></source>
<year>2009</year>
<volume>5</volume>
<page-range>495-510</page-range></nlm-citation>
</ref>
<ref id="B55">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Simon]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Bertino]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Gaussian anamorphosis extension of the DEnKF for combined state parameter estimation: application to a 1D ocean ecosystem model]]></article-title>
<source><![CDATA[J. Marine Syst.]]></source>
<year>2012</year>
<volume>89</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-18</page-range></nlm-citation>
</ref>
<ref id="B56">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Griffiths]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Programming the finite element method]]></source>
<year>2004</year>
<publisher-loc><![CDATA[England ]]></publisher-loc>
<publisher-name><![CDATA[John Wiley and Sons Ltd.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B57">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Suciu]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diffusion in random velocity fields with applications to contaminant transport in groundwater]]></article-title>
<source><![CDATA[Adv. Water Resour.]]></source>
<year>2014</year>
<volume>69</volume>
<page-range>114-33</page-range></nlm-citation>
</ref>
<ref id="B58">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Suciu]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Schüler]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Attinger]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Knabner]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Towards a filtered density function approach for reactive transport in groundwater]]></article-title>
<source><![CDATA[Adv. Water Resour.]]></source>
<year>2016</year>
<volume>90</volume>
<page-range>83-98</page-range></nlm-citation>
</ref>
<ref id="B59">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[A.Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Morris]]></surname>
<given-names><![CDATA[A.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Mohanty]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sequential updating of multimodal hydrogeologic parameter fields using localization and clustering techniques]]></article-title>
<source><![CDATA[Water Resour. Res.]]></source>
<year>2009</year>
<volume>45</volume>
</nlm-citation>
</ref>
<ref id="B60">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tarantola]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Inverse problem theory and methods for model parameter estimation]]></source>
<year>2005</year>
<publisher-loc><![CDATA[USA ]]></publisher-loc>
<publisher-name><![CDATA[SIAM]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B61">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Xu]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The power of transient piezometric head data in inverse modeling: An application of the localized normal-score EnKF with covariance inflation in a heterogeneous bimodal hydraulic conductivity field]]></article-title>
<source><![CDATA[Adv. Water Resour.]]></source>
<year>2013</year>
<volume>54</volume>
<page-range>100-18</page-range></nlm-citation>
</ref>
<ref id="B62">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Stochastic methods for flow in porous media]]></source>
<year>2002</year>
<publisher-loc><![CDATA[USA ]]></publisher-loc>
<publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B63">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez- Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hendricks Franssen]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An approach to handling nongaussianity of parameters and state variables in ensemble Kalman filtering]]></article-title>
<source><![CDATA[Adv. Water Resour.]]></source>
<year>2011</year>
<volume>34</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>844-64</page-range></nlm-citation>
</ref>
<ref id="B64">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Hernández]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A pattern-search-based inverse method]]></article-title>
<source><![CDATA[Water Resour. Res.]]></source>
<year>2012</year>
<volume>48</volume>
</nlm-citation>
</ref>
<ref id="B65">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Hernández]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Inverse methods in hydrogeology: Evolution and recent trends]]></article-title>
<source><![CDATA[Adv. Water Resour.]]></source>
<year>2014</year>
<volume>63</volume>
<page-range>22-37</page-range></nlm-citation>
</ref>
<ref id="B66">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zovi]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Camporese]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hendricks Franssen]]></surname>
<given-names><![CDATA[H.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Huisman]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Salandin]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Identification of high-permeability subsurface structures with multiple point geostatistics and normal score ensemble Kalman filter]]></article-title>
<source><![CDATA[J. Hydrol.]]></source>
<year>2017</year>
<volume>548</volume>
<page-range>208-24</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
