Modeling of the Mediterranean Climate System

Li, Laurent; Casado, Alberto; Congedi, Letizia; Dell’Aquila, Alessandro; Dubois, Clotilde; Elizalde, Alberto; Hévéder, Blandine L’; Lionello, Piero; Sevault, Florence; Somot, Samuel; Ruti, Paolo; Zampieri, Matteo

doi:10.1016/b978-0-12-416042-2.00007-0

Cited by 23 publications

(17 citation statements)

References 65 publications

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“…SW bias in CNRM-RCSM4 (Sanchez-Gomez et al, 2011;Dubois et al, 2012), which explains the very good behaviour of the model in SSS and salt content. The model SST cold bias is present in most of the other ERA40-driven RCSMs (Li et al, 2012) and GCM-driven RCSMs Sanna et al, 2013) except for the LMDZ-Med/ NEMOMED8 model, which shows nearly no SST bias (L'He´ve´der et al, 2013). However, despite spatial biases, the SSS simulated by CNRM-RCSM4 has the smallest bias on average over the Mediterranean Sea among the published RCSMs, with most of the other RCSMs showing an overestimated SSS L'He´ve´der et al, 2013;Di Luca et al, 2014).…”

Section: Comparison Of Cnrm-rcsm4 With the Stateof-the-art Mediterranmentioning

confidence: 99%

“…To our knowledge, only one simulation [Drobinski et al (2012), Di Luca et al (2014, same simulation] described an ERA-Interim driven RCSM for a period (1989Á2008), shorter than in the current study (1980Á2012). A recent review of the literature can be found in Li et al (2012) and Planton et al (2012).…”

Section: Comparison Of Cnrm-rcsm4 With the Stateof-the-art Mediterranmentioning

confidence: 99%

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A fully coupled Mediterranean regional climate system model: design and evaluation of the ocean component for the 1980–2012 period

Sevault¹,

Somot²,

Alias³

et al. 2014

Tellus A: Dynamic Meteorology and Oceanography

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A B S T R A C TA fully coupled regional climate system model (CNRM-RCSM4) dedicated to the Mediterranean region is described and evaluated using a multidecadal hindcast simulation (1980Á2012) driven by global atmosphere and ocean reanalysis. CNRM-RCSM4 includes the regional representation of the atmosphere (ALADIN-Climate model), land surface (ISBA model), rivers (TRIP model) and the ocean (NEMOMED8 model), with a daily coupling by the OASIS coupler. This model aims to reproduce the regional climate system with as few constraints as possible: there is no surface salinity, temperature relaxation, or flux correction; the Black Sea budget is parameterised and river runoffs (except for the Nile) are fully coupled. The atmospheric component of CNRM-RCSM4 is evaluated in a companion paper; here, we focus on the airÁsea fluxes, river discharges, surface ocean characteristics, deep water formation phenomena and the Mediterranean thermohaline circulation. Long-term stability, mean seasonal cycle, interannual variability and decadal trends are evaluated using basin-scale climatologies and in-situ measurements when available. We demonstrate that the simulation shows overall good behaviour in agreement with state-of-the-art Mediterranean RCSMs. An overestimation of the shortwave radiation and latent heat loss as well as a cold Sea Surface Temperature (SST) bias and a slight trend in the bottom layers are the primary current deficiencies. Further, CNRM-RCSM4 shows high skill in reproducing the interannual to decadal variability for airÁsea fluxes, river runoffs, sea surface temperature and salinity as well as open-sea deep convection, including a realistic simulation of the Eastern Mediterranean Transient. We conclude that CNRM-RCSM4 is a mature modelling tool allowing the climate variability of the Mediterranean regional climate system to be studied and understood. It is used in hindcast and scenario modes in the HyMeX and Med-CORDEX programs.

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Section: Comparison Of Cnrm-rcsm4 With the Stateof-the-art Mediterranmentioning

confidence: 99%

Section: Comparison Of Cnrm-rcsm4 With the Stateof-the-art Mediterranmentioning

confidence: 99%

A fully coupled Mediterranean regional climate system model: design and evaluation of the ocean component for the 1980–2012 period

Sevault¹,

Somot²,

Alias³

et al. 2014

Tellus A: Dynamic Meteorology and Oceanography

Self Cite

123

View full text Add to dashboard Cite

show abstract

“…Significant progresses has been made on climate projections for the Mediterranean region, both through new models (e.g., Li et al 2012) and new simulations (e.g., Planton et al 2012;Gualdi et al, 2013). Besides dynamical downscaling by regional climate models, statistical downscaling is a major tool to derive climate change projections at regional or even local scales.…”

Section: Climate Projectionsmentioning

confidence: 99%

The climate of the Mediterranean region: research progress and climate change impacts

et al. 2014

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“…It is composed of LMDz4-regional as atmospheric component (Li et al 2012) and of NEMOMED8 (Beuvier et al 2010;Adloff et al 2015) as oceanic component. NEMOMED8 is a regional configuration of the NEMO ocean model (Madec 2008), setup for the Mediterranean Sea.…”

Section: Lmdz-med-fixed Atlanticmentioning

confidence: 99%

Improving sea level simulation in Mediterranean regional climate models

et al. 2017

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long-term regional simulations of the Mediterranean Sea do not integrate the full sea level information from the Atlantic, which is a substantial shortcoming when analysing Mediterranean sea level response. In the present study we analyse different approaches followed by state-of-the-art regional climate models to simulate Mediterranean sea level variability. Additionally we present a new simulation which incorporates improved information of Atlantic sea level forcing at the lateral boundary. We evaluate the skills of the different simulations in the frame of long-term hindcast simulations spanning from 1980 to 2012 analysing sea level variability from seasonal to multidecadal scales. Results from the new simulation show a substantial improvement in the modelled Mediterranean sea level signal. This confirms that Mediterranean mean sea level is strongly influenced by the Atlantic conditions, and thus suggests that the quality of the information in the lateral boundary conditions (LBCs) is crucial for the good modelling of Mediterranean sea level. We also found that the regional differences inside the basin, that are induced by circulation changes, are model-dependent and thus not affected by the LBCs. Finally, we argue that a correct configuration of LBCs in the Atlantic should be used for future Mediterranean simulations, which cover hindcast period, but also for scenarios.

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Modeling of the Mediterranean Climate System

Cited by 23 publications

References 65 publications

A fully coupled Mediterranean regional climate system model: design and evaluation of the ocean component for the 1980–2012 period

A fully coupled Mediterranean regional climate system model: design and evaluation of the ocean component for the 1980–2012 period

The climate of the Mediterranean region: research progress and climate change impacts

Improving sea level simulation in Mediterranean regional climate models

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