Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11765/7305
Dynamical downscaling of snow trends in Northern Iberia based on ENSEMBLES regional simulations
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dc.contributor.authorHerrera García, Sixtoes_ES
dc.contributor.authorPons Reynés, María Rosaes_ES
dc.contributor.authorSordo, Carmen Maríaes_ES
dc.contributor.authorGutiérrez Llorente, José Manueles_ES
dc.date.accessioned2017-07-13T06:02:24Z-
dc.date.available2017-07-13T06:02:24Z-
dc.date.issued2010-
dc.identifier.citationEuropean Geosciences Union General Assembly (2010)es_ES
dc.identifier.urihttp://hdl.handle.net/20.500.11765/7305-
dc.descriptionPóster presentado en: European Geosciences Union General Assembly 2010 celebrada del 2 al 7 de mayo de 2010 en Vienaes_ES
dc.description.abstractA recent study reported a significant decreasing trend of snow occurrence (-4.6 days/decade) in the Northern Iberian Peninsula since the mid seventies (Pons et al. 2009). This study was based on observations of annual snow frequency (measured as the annual number of snow days) from a network of 33 stations ranging from 60 to 1350 meters. In the present work we analyze the skill of dynamical downscaling methods to reproduce this trend in present climate conditions and also to further project it into the future from A1B-scenario global simulations. In particular, we consider the regional simulation dataset from the ENSEMBLES project, consisting in ten state-of-the-art Regional Climate Models (RCMs) at 25km resolution run with different forcing/boundary conditions. To this aim we first test the regional models with perfect boundaries considering ERA40; it is shown that after correcting the bias, all the RCMs appropriately reproduce the interannual variability and the observed trends (e.g., the ensemble mean presents a trend of -5.8 days/decade). Then we analyze the results for the present climate 20c3m-scenario global simulations. In this case, the results are quite variable with the larger uncertainty being associated with the particular GCM used (ECHAM5, CNRM or HadCM) with trends ranging from -6.7 to -1.8 days/decade. Finally, the trends obtained for the future 2010-2040 A1B runs range from -5.7 to -1.4 days/decade, indicating a continuous decrease of snow frequency in this region.es_ES
dc.language.isoenges_ES
dc.rightsLicencia CC: Reconocimiento–NoComercial–SinObraDerivada CC BY-NC-NDes_ES
dc.subjectSnow trendses_ES
dc.subjectDynamical downscalinges_ES
dc.subjectENSEMBLES simulationses_ES
dc.subjectRegional climate scenarioses_ES
dc.titleDynamical downscaling of snow trends in Northern Iberia based on ENSEMBLES regional simulationses_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
Appears in Collections:EGU General Assembly


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