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A 5 km resolution regional climate simulation for Central Europe: Performance in high mountain areas and seasonal, regional and elevation-dependent variations

Warscher, M.; Wagner, S.; Marke, T.; Laux, Patrick; Smiatek, Gerhard; Strasser, U.; Kunstmann, Harald

Abstract:
Mountain regions with complex orography are a particular challenge for regional climate simulations. High spatial resolution is required to account for the high spatial variability in meteorological conditions. This study presents a very high-resolution regional climate simulation (5 km) using the Weather Research and Forecasting Model (WRF) for the central part of Europe including the Alps. Global boundaries are dynamically downscaled for the historical period 1980–2009 (ERA-Interim and MPI-ESM), and for the near future period 2020–2049 (MPI-ESM, scenario RCP4.5). Model results are compared to gridded observation datasets and to data from a dense meteorological station network in the Berchtesgaden Alps (Germany). Averaged for the Alps, the mean bias in temperature is about −0.3 °C, whereas precipitation is overestimated by +14% to +19%. R$^{2}$ values for hourly, daily and monthly temperature range between 0.71 and 0.99. Temporal precipitation dynamics are well reproduced at daily and monthly scales (R$^{2}$ between 0.36 and 0.85), but are not well captured at hourly scale. The spatial patterns, seasonal distributions, and elevation-dependencies of the climate change signals are investigated. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000104749
Veröffentlicht am 13.01.2020
Originalveröffentlichung
DOI: 10.3390/atmos10110682
Scopus
Zitationen: 8
Web of Science
Zitationen: 8
Dimensions
Zitationen: 8
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2073-4433
KITopen-ID: 1000104749
HGF-Programm 12.02.03 (POF III, LK 01) Regional Climate-and Water Cycle Variab.
Erschienen in Atmosphere
Verlag MDPI
Band 10
Heft 11
Seiten Art.-Nr.: 682
Schlagwörter high-resolution (5 km) RCM simulation; Central Europe; Alps; complex terrain; multi-scale validation; elevation-dependent climate trend
Nachgewiesen in Dimensions
Web of Science
Scopus
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