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On the spin-up period in WRF simulations over Europe: trade-offs between length and seasonality

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dc.contributor.authorJerez Rodríguez, Sonia
dc.contributor.authorLópez Romero, José María
dc.contributor.authorTurco, Marco
dc.contributor.authorLorente Plazas, Raquel
dc.contributor.authorGómez Navarro, Juan José
dc.contributor.authorJiménez Guerrero, Pedro
dc.contributor.authorMontávez, Juan Pedro
dc.contributor.departmentFísica
dc.contributor.otherFacultades de la UMU::Facultad de Química
dc.contributor.otherFacultades de la UMU::Facultad de Biología
dc.date.accessioned2026-01-07T13:30:49Z
dc.date.available2026-01-07T13:30:49Z
dc.date.copyright© 2020 The Authors
dc.date.issued2020-02-20
dc.description.abstractRegional climate models (RCMs) are usually initialized and driven through the boundaries of their limited area domain by data provided by global models (GCMs). The mismatch between the low-resolution GCM initial conditions and RCM’s high resolution introduces physical inconsistencies between the various components of the RCM. These inconsistencies can be resolved by running the RCM during a period that is considered unreliable: the spin-up period. There is no deterministic definition of the length that the spin-up period should have. Here we try to provide general guidelines that can be used to the advantage of the community. We base our analysis on Weather Research and Forecasting (WRF) simulations over a Euro-Cordex compliant domain and find that for 2-m temperature and precipitation, rather short spin-up periods (1 week) can be sufficient. Nevertheless, longer periods (6 months) are advisable, and start dates in non-winter months should be pursued, as this ensures a more realistic representation of the snow cover. Thus, the issue is not only about the spin-up length. As the soil subsystem evolves slowly and requires longer periods to reach equilibrium than the longest considered here (1 year), seasonality plays an important role in minimizing the impact of the unreliability of the soil initialization. Fortunately, except for goals where the deep soil-atmosphere feedbacks are critical, the lack of equilibrium between them can be ignored, as it seems to have little effect on the simulation of the atmospheric variables most frequently used in RCM studies.
dc.formatapplication/pdf
dc.identifier.citationJournal of Advances in Modeling Earth Systems, 2020, Vol. 12, Issue 4, e2019MS001945
dc.identifier.doi https://doi.org/10.1029/2019MS001945
dc.identifier.eissn1942-2466
dc.identifier.urihttp://hdl.handle.net/10201/184090
dc.languageeng
dc.publisherWiley / American Geophysical Union
dc.relationEste trabajo ha sido financiado por el Ministerio de Ciencia, Innovación y Universidades y el Fondo Europeo de Desarrollo Regional (FEDER) a través de los proyectos EASE (RTI2018-100870-A-I00) y PREDFIRE (RTI2018-099711-J-I00); por la Fundación Séneca – Agencia Regional de Ciencia y Tecnología de la Región de Murcia mediante los proyectos CLIMAX (20642/JLI/18) y UMULINK (20640/JLI/18); y por el Ministerio de Economía y Competitividad mediante los proyectos REPAIR (CGL2014-59677-R) y ACEX (CGL2017-87921-R)
dc.relation.publisherversionhttps://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019MS001945
dc.rightsAttribution 4.0 International*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectSpin-up period
dc.subjectEuro-CORDEX
dc.subjectRegional climate models
dc.subject.odsObjetivo 13: Cambio climático
dc.subject.odsObjetivo 11: Ciudades y comunidades sostenibles
dc.subject.odsObjetivo 3: Salud y bienestar
dc.titleOn the spin-up period in WRF simulations over Europe: trade-offs between length and seasonality
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
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