Browsing by Subject "Added value"

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    The added value of simulated near-surface wind speed over the Alps from a km-scale multimodel ensemble
    (2024) Molina, M. O.; Careto, J. M.; Gutiérrez, C.; Sánchez, E.; Goergen, K.; Sobolowski, S.; Coppola, E.; Pichelli, E.; Ban, N.; Belus̆ić, D.; Short, C.; Caillaud, C.; Dobler, A.; Hodnebrog, Ø.; Kartsios, S.; Lenderink, G.; de Vries, H.; Göktürk, O.; Milovac, Josipa; Feldmann, H.; Truhetz, H.; Demory, M. E.; Warrach-Sagi, Kirsten; Keuler, K.; Adinolfi, M.; Raffa, M.; Tölle, M.; Sieck, K.; Bastin, S.; Soares, P. M. M.; Molina, M. O.; Faculdade de Ciências da Universidade de Lisboa, Campo Grande, Ed. C8 (3.26), 1749-016, Lisbon, Portugal; Careto, J. M.; Faculdade de Ciências da Universidade de Lisboa, Campo Grande, Ed. C8 (3.26), 1749-016, Lisbon, Portugal; Gutiérrez, C.; Department of Physics and Mathematics, University of Alcalá, Alcalá de Henares, Madrid, Spain; Sánchez, E.; University of Castilla-La Mancha (UCLM), Faculty of Environmental Sciences and Biochemistry, Avenida Carlos III s/n, 45071, Toledo, Spain; Goergen, K.; Research Centre Juelich, Institute of Bio- and Geosciences (IBG-3, Agrosphere), 52425, Juelich, Germany; Sobolowski, S.; NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway; Coppola, E.; Earth System Physics Section, The Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy; Pichelli, E.; Earth System Physics Section, The Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy; Ban, N.; Department of Atmospheric and Cryospheric Sciences (ACINN), University of Innsbruck, Innsbruck, Austria; Belus̆ić, D.; Swedish Meteorological and Hydrological Institute (SMHI), Norrköping, Sweden; Short, C.; Met Office Hadley Centre, Fitzroy Road, EX1 3PB, Exeter, UK; Caillaud, C.; CNRM, Université de Toulouse, Météo-France, CNRS, Toulouse, France; Dobler, A.; Norwegian Meteorological Institute, Oslo, Norway; Hodnebrog, Ø.; Center for International Climate Research (CICERO), Oslo, Norway; Kartsios, S.; Department of Meteorology and Climatology, School of Geology, Aristotle University of Thessaloniki, Thessaloniki, Greece; Lenderink, G.; Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; de Vries, H.; Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; Göktürk, O.; NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway; Milovac, J.; Meteorology Group, Instituto de Física de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain; Feldmann, H.; Institute of Meteorology and Climate Research (IMK-TRO), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany; Truhetz, H.; Wegener Center for Climate and Global Change, University of Graz, Graz, Austria; Demory, M. E.; Institute for Atmospheric and Climate Sciences, ETH Zürich, Zürich, Switzerland; Warrach-Sagi, K.; Institute of Physics and Meteorology, University of Hohenheim, Stuttgart, Germany; Keuler, K.; Chair of Atmospheric Processes Brandenburg University of Technology (BTU), Cottbus, Germany; Adinolfi, M.; Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici, Regional Model and Geo-Hydrological Impacts (REMHI) Division, Via Thomas Alva Edison, 81100, Caserta, Italy; Raffa, M.; Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici, Regional Model and Geo-Hydrological Impacts (REMHI) Division, Via Thomas Alva Edison, 81100, Caserta, Italy; Tölle, M.; Center for Environmental Systems Research (CESR), University of Kassel, Kassel, Germany; Sieck, K.; Climate Service Center Germany (GERICS), Helmholtz-Zentrum Hereon, 20095, Hamburg, Germany; Bastin, S.; LATMOS/IPSL, UVSQ Université Paris-Saclay, UPMC University, Paris, France; Soares, P. M. M.; Faculdade de Ciências da Universidade de Lisboa, Campo Grande, Ed. C8 (3.26), 1749-016, Lisbon, Portugal
    The advancement of computational resources has allowed researchers to run convection-permitting regional climate model (CPRCM) simulations. A pioneering effort promoting a multimodel ensemble of such simulations is the CORDEX Flagship Pilot Studies (FPS) on “Convective Phenomena over Europe and the Mediterranean” over an extended Alps region. In this study, the Distribution Added Value metric is used to determine the improvement of the representation of all available FPS hindcast simulations for the daily mean near-surface wind speed. The analysis is performed on normalized empirical probability distributions and considers station observation data as the reference. The use of a normalized metric allows for spatial comparison among the different regions (coast and inland), altitudes and seasons. This approach permits a direct assessment of the added value between the CPRCM simulations against their global driving reanalysis (ERA-Interim) and respective coarser resolution regional model counterparts. In general, the results show that CPRCMs add value to their global driving reanalysis or forcing regional model, due to better-resolved topography or through better representation of ocean-land contrasts. However, the nature and magnitude of the improvement in the wind speed representation vary depending on the model, the season, the altitude, or the region. Among seasons, the improvement is usually larger in summer than winter. CPRCMs generally display gains at low and medium-range altitudes. In addition, despite some shortcomings in comparison to ERA-Interim, which can be attributed to the assimilation of wind observations on the coast, the CPRCMs outperform the coarser regional climate models, both along the coast and inland.