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\begin{document}

\title{Exploring Regional Climate of the Euro-Mediterranean Using a
Variable-Resolution Configuration of the Global Community Earth System
Model (VR-CESM)}



\author[1]{Burcu Boza}%
\author[2]{Adam R Herrington}%
\author[1]{Mehmet Ilicak}%
\author[3]{Gokhan Danabasoglu}%
\author[1]{Omer Lutfi Sen}%
\affil[1]{Istanbul Technical University}%
\affil[2]{National Center for Atmospheric Research}%
\affil[3]{National Center for Atmospheric Research (NCAR)}%


\vspace{-1em}



  
  \date{May 18, 2024}


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\selectlanguage{english}
\begin{abstract}
A Variable-Resolution, global configuration of the Community Earth
System Model (VR-CESM) in which the atmosphere and land are the only
active components is employed to investigate the climate of the
Euro-Mediterranean region. Two variable-resolution grids with
regionally-refined resolutions of 0.25\selectlanguage{ngerman}° and 0.125° over the study
domain, respectively, are used. The fidelity of these VR-CESM
simulations is evaluated considering the near-surface air temperature
and precipitation fields for the 2000-2014 period in comparison to
available observation-based datasets and those of a coarse resolution
(quasi-uniform 1°) control simulation. Our analysis shows that, as a
global model, VR-CESM is a promising alternative to regional climate
models to advance our understanding of the Euro-Mediterranean climate.
The improvements obtained are mainly related to a better representation
of the complex topography of the region with higher resolution.
Increasing the regional resolution to 0.25° generally yields
considerable improvements over the control simulation, however some
persistent biases remain. Doubling the highest resolution to 0.125°
leads to only modest improvements, primarily in the representation of
small-scale processes including representation of extreme events that
are of substantial relevance for the present and future of the regional
climate.%
\end{abstract}\selectlanguage{ngerman}%



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\textbf{Hosted file}

\verb`BozaBurcu_2024_ExploringRegClim.docx`  available at \url{https://authorea.com/users/764356/articles/742308-exploring-regional-climate-of-the-euro-mediterranean-using-a-variable-resolution-configuration-of-the-global-community-earth-system-model-vr-cesm}

\textbf{Hosted file}

\verb`BozaBurcu_2024_supplement.docx`  available at \url{https://authorea.com/users/764356/articles/742308-exploring-regional-climate-of-the-euro-mediterranean-using-a-variable-resolution-configuration-of-the-global-community-earth-system-model-vr-cesm}

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