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<front>
<journal-meta>
<journal-id journal-id-type="publisher">HESS</journal-id>
<journal-title-group>
<journal-title>Hydrology and Earth System Sciences</journal-title>
<abbrev-journal-title abbrev-type="publisher">HESS</abbrev-journal-title>
<abbrev-journal-title abbrev-type="nlm-ta">Hydrol. Earth Syst. Sci.</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">1607-7938</issn>
<publisher><publisher-name>Copernicus Publications</publisher-name>
<publisher-loc>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/hess-18-2393-2014</article-id>
<title-group>
<article-title>Uncertainty analysis in model parameters regionalization: a case study involving the SWAT model in Mediterranean catchments (Southern France)</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Sellami</surname>
<given-names>H.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>La Jeunesse</surname>
<given-names>I.</given-names>
<ext-link>https://orcid.org/0000-0003-2411-5972</ext-link>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Benabdallah</surname>
<given-names>S.</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Baghdadi</surname>
<given-names>N.</given-names>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Vanclooster</surname>
<given-names>M.</given-names>
<ext-link>https://orcid.org/0000-0003-1358-8723</ext-link>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>Earth and Life Institute, Université catholique de Louvain, Croix du Sud 2, Box 2, 1348 Louvain-la-Neuve, Belgium</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>UMR 7324 CITERES, Université de Tours, 33 allée Ferdinand de Lesseps BP 60449 &amp;ndash; 37204 Tours cedex 3, France</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>LETG-Angers LEESA, UMR 6554 CNRS, Université d&apos;Angers, Faculté des Sciences, 2 Bd Lavoisier, 49045 Angers Cedex 1, France</addr-line>
</aff>
<aff id="aff4">
<label>4</label>
<addr-line>Centre de Recherches et des Technologies des Eaux, Technopole Borj Cedria, BP 273, Soliman 8020, Tunisia</addr-line>
</aff>
<aff id="aff5">
<label>5</label>
<addr-line>IRSTEA, UMR TETIS, 500 rue François Breton, 34093 Montpellier CEDEX 5, France</addr-line>
</aff>
<pub-date pub-type="epub">
<day>26</day>
<month>06</month>
<year>2014</year>
</pub-date>
<volume>18</volume>
<issue>6</issue>
<fpage>2393</fpage>
<lpage>2413</lpage>
<permissions>
<copyright-statement>Copyright: &#x000a9; 2014 H. Sellami et al.</copyright-statement>
<copyright-year>2014</copyright-year>
<license license-type="open-access">
<license-p>This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit <ext-link ext-link-type="uri"  xlink:href="https://creativecommons.org/licenses/by/3.0/">https://creativecommons.org/licenses/by/3.0/</ext-link></license-p>
</license>
</permissions>
<self-uri xlink:href="https://hess.copernicus.org/articles/18/2393/2014/hess-18-2393-2014.html">This article is available from https://hess.copernicus.org/articles/18/2393/2014/hess-18-2393-2014.html</self-uri>
<self-uri xlink:href="https://hess.copernicus.org/articles/18/2393/2014/hess-18-2393-2014.pdf">The full text article is available as a PDF file from https://hess.copernicus.org/articles/18/2393/2014/hess-18-2393-2014.pdf</self-uri>
<abstract>
<p>In this study a method for propagating the hydrological model uncertainty in
discharge predictions of ungauged Mediterranean catchments using a model
parameter regionalization approach is presented. The method is developed and
tested for the Thau catchment located in Southern France using the SWAT
hydrological model. Regionalization of model parameters, based on physical
similarity measured between gauged and ungauged catchment attributes, is a
popular methodology for discharge prediction in ungauged basins, but it is
often confronted with an arbitrary criterion for selecting the
&quot;behavioral&quot; model parameter sets (Mps) at the gauged catchment. A more
objective method is provided in this paper where the transferrable Mps are
selected based on the similarity between the donor and the receptor
catchments. In addition, the method allows propagating the modeling
uncertainty while transferring the Mps to the ungauged catchments. Results
indicate that physically similar catchments located within the same
geographic and climatic region may exhibit similar hydrological behavior and
can also be affected by similar model prediction uncertainty. Furthermore,
the results suggest that model prediction uncertainty at the ungauged
catchment increases as the dissimilarity between the donor and the receptor
catchments increases. The methodology presented in this paper can be
replicated and used in regionalization of any hydrological model parameters
for estimating streamflow at ungauged catchment.</p>
</abstract>
<counts><page-count count="21"/></counts>
<funding-group>
<award-group id="gs1">
<funding-source>European Commission</funding-source>
<award-id>CLIMB - Climate Induced Changes on the Hydrology of Mediterranean Basins: Reducing Uncertainty and Quantifying Risk through an Integrated Monitoring and Modeling System (244151)</award-id>
</award-group>
</funding-group>
</article-meta>
</front>
<body/>
<back>
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