Evaluation of TOPLATS on three Mediterranean catchments

Loizu Maeztu, Javier; Álvarez Mozos, Jesús; Casalí Sarasíbar, Javier; Goñi Garatea, Mikel

Publication:
Evaluation of TOPLATS on three Mediterranean catchments

dc.contributor.author	Loizu Maeztu, Javier
dc.contributor.author	Álvarez Mozos, Jesús
dc.contributor.author	Casalí Sarasíbar, Javier
dc.contributor.author	Goñi Garatea, Mikel
dc.contributor.department	Proyectos e Ingeniería Rural	es_ES
dc.contributor.department	Landa Ingeniaritza eta Proiektuak	eu
dc.contributor.funder	Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa	es
dc.date.accessioned	2017-01-25T11:18:53Z
dc.date.available	2018-08-01T23:00:10Z
dc.date.issued	2016
dc.description.abstract	Physically based hydrological models are complex tools that provide a complete description of the different processes occurring on a catchment. The TOPMODEL-based Land-Atmosphere Transfer Scheme (TOPLATS) simulates water and energy balances at different time steps, in both lumped and distributed modes. In order to gain insight on the behavior of TOPLATS and its applicability in different conditions a detailed evaluation needs to be carried out. This study aimed to develop a complete evaluation of TOPLATS including: 1) a detailed review of previous research works using this model; 2) a sensitivity analysis (SA) of the model with two contrasted methods (Morris and Sobol) of different complexity; 3) a 4-step calibration strategy based on a multi-start Powell optimization algorithm; and 4) an analysis of the influence of simulation time step (hourly vs. daily). The model was applied on three catchments of varying size (La Tejeria, Cidacos and Arga), located in Navarre (Northern Spain), and characterized by different levels of Mediterranean climate influence. Both Morris and Sobol methods showed very similar results that identified Brooks-Corey Pore Size distribution Index (B), Bubbling pressure (ψc) and Hydraulic conductivity decay (f) as the three overall most influential parameters in TOPLATS. After calibration and validation, adequate streamflow simulations were obtained in the two wettest catchments, but the driest (Cidacos) gave poor results in validation, due to the large climatic variability between calibration and validation periods. To overcome this issue, an alternative random and discontinuous method of cal/val period selection was implemented, improving model results.	en
dc.description.sponsorship	This study was partially funded by the Spanish Ministry of Science and Innovation (project CGL2011-24336) and by the Public University of Navarre through a pre-doctorate research scholarships to the first author.	en
dc.embargo.lift	2018-08-01
dc.embargo.terms	2018-08-01
dc.format.mimetype	application/pdf	en
dc.identifier.doi	10.1016/j.jhydrol.2016.05.025
dc.identifier.issn	0022-1694 (Print)
dc.identifier.issn	1879-2707 (Electronic)
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/23318
dc.language.iso	eng	en
dc.publisher	Elsevier	en
dc.relation.ispartof	Journal of Hydrology 539 (2016) 141–161	en
dc.relation.projectID	info:eu-repo/grantAgreement/MICINN//CGL2011-24336/ES/	en
dc.relation.publisherversion	https://dx.doi.org/10.1016/j.jhydrol.2016.05.025
dc.rights	© 2016 Elsevier B.V. The manuscript version is made available under the CC BY-NC-ND 4.0 license.	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	TOPLATS	en
dc.subject	Sensitivity analysis	en
dc.subject	Morris and Sobol methods	en
dc.subject	Calibration and validation strategies	en
dc.subject	Optimization algorithm	en
dc.subject	Hydrological modeling time scale	en
dc.title	Evaluation of TOPLATS on three Mediterranean catchments	en
dc.type	info:eu-repo/semantics/article
dc.type.version	Versión aceptada / Onetsi den bertsioa	es
dc.type.version	info:eu-repo/semantics/acceptedVersion	en
dspace.entity.type	Publication
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relation.isAuthorOfPublication.latestForDiscovery	fc2af49d-1080-454e-8fd7-39fcb0c64472

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