Simulations of the Holocene climate in Europe using an interactive downscaling within the iLOVECLIM model (version 1.1)

Autor: Frank Arthur, Didier M. Roche, Ralph Fyfe, Aurélien Quiquet, Hans Renssen
Přispěvatelé: Earth Sciences, University of South-Eastern Norway (USN), Vrije Universiteit Amsterdam [Amsterdam] (VU), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Modélisation du climat (CLIM), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), School of Geography, Earth and Environmental Sciences [Plymouth] (SoGEES), Plymouth University
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Arthur, F, Roche, D M, Fyfe, R, Quiquet, A & Renssen, H 2023, ' Simulations of the Holocene climate in Europe using an interactive downscaling within the iLOVECLIM model (version 1.1) ', Climate of the Past, vol. 19, no. 1, pp. 87-106 . https://doi.org/10.5194/cp-19-87-2023
Climate of the Past, 19(1), 87-106. European Geosciences Union
Climate of the Past
Climate of the Past, 2023, 19 (1), pp.87-106. ⟨10.5194/cp-19-87-2023⟩
ISSN: 1814-9324
1814-9332
Popis: This study presents the application of an interactive downscaling in Europe using iLOVECLIM (a model of intermediate complexity), increasing its atmospheric resolution from 5.56 to 0.25∘ kilometric. A transient simulation using the appropriate climate forcings for the entire Holocene (11.5–0 ka BP) was done for both the standard version of the model and with an interactive downscaling applied. Our results show that simulations from downscaling present spatial variability that agrees better with proxy-based reconstructions and other climate models as compared to the standard model. The downscaling scheme simulates much higher (by at least a factor of 2) precipitation maxima and provides detailed information in mountainous regions. We focus on examples from the Scandes mountains, the Alps, the Scottish Highlands, and the Mediterranean. The higher spatial resolution of the downscaling provides a more realistic overview of the topography and gives local climate information, such as precipitation and temperature gradient, that is important for paleoclimate studies. With downscaling, we simulate similar trends and spatial patterns of the precipitation changes reconstructed by other proxy studies (for example in the Alps) as compared to the standard version. Our downscaling tool is numerically cheap, implying that our model can perform kilometric, multi-millennial simulations and is suitable for future studies.
Databáze: OpenAIRE
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