A5029480560- Climate variability and models
- Meteorological Phenomena and Simulations
- Cryospheric studies and observations
- Atmospheric and Environmental Gas Dynamics
- Tropical and Extratropical Cyclones Research
- Hydrology and Watershed Management Studies
- Geophysics and Gravity Measurements
- Atmospheric chemistry and aerosols
- Urban Heat Island Mitigation
- Hydrology and Drought Analysis
- Atmospheric Ozone and Climate
- Oceanographic and Atmospheric Processes
- Medical Imaging Techniques and Applications
- Geology and Paleoclimatology Research
- Marine and coastal ecosystems
- Climate change and permafrost
- Arctic and Antarctic ice dynamics
- Remote Sensing and Land Use
- Advanced Aircraft Design and Technologies
- Spacecraft and Cryogenic Technologies
- demographic modeling and climate adaptation
- Plant Water Relations and Carbon Dynamics
- Polar Research and Ecology
- Cardiovascular Function and Risk Factors
- Plant Physiology and Cultivation Studies
Université de Toulouse
2018-2024
Centre National de la Recherche Scientifique
2013-2024
Météo-France
2014-2024
Centre National de Recherches Météorologiques
2013-2024
A new high-resolution regional climate change ensemble has been established for Europe within the World Climate Research Program Coordinated Regional Downscaling Experiment (EURO-CORDEX) initiative. The first set of simulations with a horizontal resolution 12.5 km was completed emission scenarios RCP4.5 and RCP8.5 more expected to follow. aim this paper is present data different communities active in modelling, impact assessment adaptation. EURO-CORDEX results have compared SRES A1B...
A new version of the general circulation model CNRM-CM has been developed jointly by CNRM-GAME (Centre National de Recherches Météorologiques—Groupe d'études l'Atmosphère Météorologique) and Cerfacs Européen Recherche et Formation Avancée) in order to contribute phase 5 Coupled Model Intercomparison Project (CMIP5). The purpose study is describe its main features provide a preliminary assessment mean climatology. CNRM-CM5.1 includes atmospheric ARPEGE-Climat (v5.2), ocean NEMO (v3.2), land...
Abstract This paper describes the main characteristics of CNRM‐CM6‐1, fully coupled atmosphere‐ocean general circulation model sixth generation jointly developed by Centre National de Recherches Météorologiques (CNRM) and Cerfacs for phase Coupled Model Intercomparison Project 6 (CMIP6). The provides a description each component including coupling method new online output software. We emphasize where model's components have been updated with respect to former version, CNRM‐CM5.1. In...
Abstract. SURFEX is a new externalized land and ocean surface platform that describes the fluxes evolution of four types surfaces: nature, town, inland water ocean. It mostly based on pre-existing, well-validated scientific models are continuously improved. The motivation for building to use strictly identical in high range applications order mutualise research development efforts. can be run offline mode (0-D or 2-D runs) coupled (from mesoscale numerical weather prediction climate models)....
Abstract The Mediterranean is expected to be one of the most prominent and vulnerable climate change “hotspots” twenty-first century, physical mechanisms underlying this finding are still not clear. Furthermore, complex interactions feedbacks involving ocean–atmosphere–land–biogeochemical processes play a role in modulating environment region on range spatial temporal scales. Therefore, it critical provide robust information for use vulnerability–impact–adaptation assessment studies...
In recent years, significant efforts have been made to upgrade physical processes in the ISBA-CTRIP land surface system for use fully coupled climate studies using new CNRM-CM6 model or stand-alone mode global hydrological applications. Here we provide a thorough description of and improved implemented between CMIP5 CMIP6 versions evaluate hydrology thermal behavior at scale. The soil scheme explicitly solves one-dimensional Fourier Darcy laws throughout soil, accounting dependency hydraulic...
Abstract Here we present the first multi-model ensemble of regional climate simulations at kilometer-scale horizontal grid spacing over a decade long period. A total 23 run with $$\sim $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mo>∼</mml:mo> </mml:math> 3 km, driven by ERA-Interim reanalysis, and performed 22 European research groups are analysed. Six different models (RCMs) represented in ensemble. The compared against available high-resolution precipitation...
A fully coupled regional climate system model (CNRM-RCSM4) dedicated to the Mediterranean region is described and evaluated using a multidecadal hindcast simulation (1980–2012) driven by global atmosphere ocean reanalysis. CNRM-RCSM4 includes representation of (ALADIN-Climate model), land surface (ISBA rivers (TRIP model) (NEMOMED8 with daily coupling OASIS coupler. This aims reproduce as few constraints possible: there no salinity, temperature relaxation, or flux correction; Black Sea...
Abstract The present study describes the atmospheric component of sixth‐generation climate models Centre National de Recherches Météorologiques (CNRM), namely, ARPEGE‐Climat 6.3. It builds up on more than a decade model development and tuning efforts, which led to major updates its moist physics. vertical resolution has also been significantly increased, both in boundary layer stratosphere. 6.3 is now coupled new version (8.0) SURFace EXternalisée (SURFEX) surface model, several features...
Most climate models do not explicitly model urban areas and at best describe them as rock covers. Nonetheless, the very high resolutions reached now by regional may justify require a more realistic parameterization of surface exchanges between canopy atmosphere. To quantify potential impact urbanization on climate, evaluate benefits detailed compared with simpler approach, sensitivity study was carried out over France 12-km horizontal resolution ALADIN-Climate for 1980–2009 time period....
South-East France is a region often affected by heavy precipitating events the characteristics of which are likely to be significantly impacted in future climate. In this study, cnrm-arome, Convection-Permitting Regional Climate Model with 2.5 km horizontal resolution compared its forcing model, aladin-climate at 12.5 km, self-driven era-interim reanalysis. An hourly observation dataset 1 comephore, used order assess simulated surface precipitation from seasonal scale. The representation...
This study focuses on future very hot summers associated with severe heatwaves and record-breaking temperatures in France. Daily temperature observations a pair of historical scenario (greenhouse gas radiative concentration pathway 8.5) simulations the high-resolution (∼12.5 km) ALADIN regional climate model provide robust framework to examine spatial distribution these extreme events their 21st century evolution.
Abstract Modelling the rare but high-impact Mediterranean Heavy Precipitation Events (HPEs) at climate scale remains a largely open scientific challenge. The issue is adressed here by running 38-year-long continuous simulation of CNRM-AROME Convection-Permitting Regional Climate Model (CP-RCM) 2.5 km horizontal resolution and over large pan-Alpine domain. First, evaluated through basic Eulerian statistical approach via comparison with selected high spatial temporal observational datasets....
Abstract. This study presents the principles of new coupling interface based on SURFEX multi-surface model and OASIS3-MCT coupler. As can be plugged into several atmospheric models, it used in a wide range applications, from global regional coupled climate systems to high-resolution numerical weather prediction or very fine-scale models dedicated process studies. The objective this development is build share common structure for atmosphere–surface all these involving one hand other ocean,...
Abstract Taking advantage of a large ensemble Convection Permitting‐Regional Climate Models on pan‐Alpine domain and an object‐oriented dedicated analysis, this study aims to investigate future changes in high‐impact fall Mediterranean Heavy Precipitation Events at high warming levels. We identify robust multi‐model agreement for increased frequency from central Italy the northern Balkans combined with substantial extension affected areas, dominant influence driving Global projecting...
Abstract. SURFEX is a new externalized land and ocean surface platform that describes the fluxes evolution of four types surface: nature, town, inland water ocean. It can be run either coupled or in offline mode. mostly based on pre-existing, well validated scientific models. used mode (from point scale to global runs) fully with an atmospheric model. able simulate carbon dioxide, chemical species, continental aerosols, sea salt snow particles. also includes data assimilation module. The...
Abstract Since a decade, convection-permitting regional climate models (CPRCM) have emerged showing promising results, especially in improving the simulation of precipitation extremes. In this article, CPRCM CNRM-AROME developed at Centre National de Recherches Météorologiques (CNRM) since few years is described and evaluated using 2.5-km 19-year long hindcast over large northwestern European domain different observations through an added-value analysis which comparison with its driving...
Taking advantage of a large ensemble Convection Permitting-Regional Climate Models on pan-Alpine domain and an object-oriented dedicated analysis, this study aims to investigate future changes in the high-impact fall Mediterranean Heavy Precipitation Events at high warming levels. We identify robust multi-model agreement for increased frequency from central Italy northern Balkans combined with substantial extension affected areas, dominant influence driving Global projecting frequency,...
&lt;p&gt;Here we present the first multi-model ensemble of climate simulations at kilometer-scale horizontal resolution over a decade long period. A total 22 simulations, performed by 21 European research groups are analyzed. Six different regional models (RCMs) represented in ensemble. The compared against available high-resolution precipitation observations and coarse (12 km) RCMs with parameterized convection. model respect to mean precipitation, intensity frequency, heavy on...
Abstract The collaboration between the Coordinated Regional Climate Downscaling Experiment (CORDEX) and Earth System Grid Federation (ESGF) provides open access to an unprecedented ensemble of regional climate model (RCM) simulations, across 14 CORDEX continental-scale domains, with global coverage. These simulations have been used as a new line evidence assess projections in latest contribution Working Group I (WGI) IPCC Sixth Assessment Report (AR6), particularly chapters Atlas. Here, we...
Abstract. Our work is among the first that use an atmosphere-ocean general circulation model (AOGCM) with online chemistry to evaluate impact of future aviation emissions on temperature. Other particularities our study include non-scaling emissions, and analysis models' transient response using ensemble simulations. The we Météo-France CNRM-CM5.1 earth system extended REPROBUS scheme. time horizon interest 1940–2100, assuming A1B SRES scenario. We investigate present CO2, NOx H2O climate,...
Abstract. This paper presents a new version of the Météo-France CNRM Chemistry-Climate Model, so-called CNRM-CCM. It includes some fundamental changes from previous (CNRM-ACM) which was extensively evaluated in context CCMVal-2 validation activity. The most notable concern radiative code GCM, and inclusion detailed stratospheric chemistry our Chemistry-Transport model MOCAGE on-line within GCM. A 47-yr transient simulation (1960–2006) is basis analysis. CNRM-CCM generates satisfactory...