A5068143562- Climate variability and models
- Meteorological Phenomena and Simulations
- Atmospheric and Environmental Gas Dynamics
- Cryospheric studies and observations
- Hydrology and Watershed Management Studies
- Plant Water Relations and Carbon Dynamics
- Climate change and permafrost
- Atmospheric Ozone and Climate
- Arctic and Antarctic ice dynamics
- Oceanographic and Atmospheric Processes
- Tropical and Extratropical Cyclones Research
- Geophysics and Gravity Measurements
- Hydrology and Drought Analysis
- Methane Hydrates and Related Phenomena
- Geology and Paleoclimatology Research
- Soil Moisture and Remote Sensing
- Atmospheric chemistry and aerosols
- RNA regulation and disease
- Radiomics and Machine Learning in Medical Imaging
- Hair Growth and Disorders
- Climate change impacts on agriculture
- Geological and Geophysical Studies
- French Urban and Social Studies
- Medical Imaging Techniques and Applications
- Flood Risk Assessment and Management
Météo-France
2015-2024
Centre National de Recherches Météorologiques
2015-2024
Université de Toulouse
2019-2024
Centre National de la Recherche Scientifique
2015-2024
United Nations Children's Fund Niger
2011
Laboratoire du Futur
2009
Life Cycle Engineering (United States)
2009
European Centre for Medium-Range Weather Forecasts
2000
University of Pavia
1984-1991
United States Geological Survey
1921
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 We investigate the dependence of radiative feedback on pattern sea‐surface temperature (SST) change in 14 Atmospheric General Circulation Models (AGCMs) forced with observed variations SST and sea‐ice over historical record from 1871 to near‐present. find that 1871–1980, Earth warmed feedbacks largely consistent strongly correlated long‐term climate sensitivity (diagnosed corresponding atmosphere‐ocean GCM abrupt‐4xCO2 simulations). Post 1980, however, unusual trends tropical...
Abstract The present study examines the correspondence between short- and long-term systematic errors in five atmospheric models by comparing 16 five-day hindcast ensembles from Transpose Atmospheric Model Intercomparison Project II (Transpose-AMIP II) for July–August 2009 (short term) to climate simulations phase 5 of Coupled (CMIP5) AMIP June–August mean conditions years 1979–2008 (long term). Because short-term hindcasts were conducted with identical used CMIP5/AMIP simulations, one can...
One of the most robust remote impacts El Niño–Southern Oscillation (ENSO) is teleconnection to tropical North Atlantic (TNA) sea surface temperature (SST) in boreal spring. However, important questions still remain open. In particular, timing ENSO–TNA relationship lacks understanding. The three previously proposed mechanisms rely on dynamics involving a time lag one season with respect ENSO mature phase winter, but recent results have shown that persistence into spring necessary for...
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...
Abstract The wintertime midlatitude atmospheric circulation is evaluated in CMIP6 models. biases have been reduced since CMIP5 although the low‐level flow still too zonal. and projections of 850 hPa zonal wind are then analyzed consistent under RCP8.5 SSP5–8.5 scenarios, respectively. A poleward shift identified Pacific, while a tripole structure found North Atlantic: strengthens over Western Europe decreases north south. multiple linear regression allows us to quantify contribution...
Projected changes in precipitation extremes and their uncertainties are evaluated using an ensemble of global climate models from phase 6 the Coupled Model Intercomparison Project (CMIP). They scaled by corresponding either mean surface temperature (ΔGSAT) or local (ΔT) expressed terms 20-yr return values (RV20) annual maximum one-day precipitation. Our main objective is to quantify model response uncertainty highlight regions where may not be consistent with widely used assumption a...
Abstract Although global warming is expected to occur at approximately constant relative humidity, the latest IPCC report remains elusive about magnitude of observed changes in tropospheric humidity and their attribution. Here we use a quality-controlled dataset situ observations, reanalyses, long record mean surface temperature constrain both recent future total precipitable water. Most state-of-the-art climate models tend exaggerate projected atmospheric moistening, line with...
Abstract. Building on CMIP6 climate simulations, updated global and regional observations, recently introduced statistical methods, we provide an assessment of past future warming over France. Following the IPCC AR6 recent global-scale studies, combine model results with observations to constrain change at scale. Over mainland France, forced in 2020 respect 1900–1930 is assessed be 1.66 [1.41 1.90] ∘C, i.e., upper range estimates, almost entirely human-induced. A refined view seasonality...
Despite continuous progress in climate modeling, global projections of the terrestrial water cycle remain highly model dependent. Here, we use quality-controlled gridded observations temperature and humidity to constrain projected changes continental near-surface relative across 21st century. Results show that are poorly constrained when using surface only argue for mitigation policies not rooted warming levels. Projections with both an inevitable drying, especially northern midlatitudes...
Initialization of land surface prognostic variables is a crucial issue for short- and medium-range forecasting as well at seasonal timescales. In this study, two sequential soil moisture analysis schemes are tested, both based on the comparison between observed predicted 2-m parameters: nudging technique used operationally European Centre Medium-Range Weather Forecasts (ECMWF) optimum interpolation proposed by J. F. Mahfouf Météo-France. Both techniques compute increments linear function...
Given the low skill of seasonal forecasts in Northern Hemisphere, it is important to look for extra sources long‐range predictability addition global distribution sea surface temperature (SST). Former studies have suggested potential contribution stratosphere but never really quantified this influence and compared SST forcing. In present study, two ensembles atmospheric simulations driven by observed radiative forcings been performed over 1971–2000 period. perturbed experiment, stratospheric...
Abstract Both observational and numerical studies suggest that fall snow cover extent over Eurasia is linked to subsequent winter variations in the predominant Northern Hemisphere teleconnection pattern, known as Arctic Oscillation (AO). The present study uses recent 20th Century Reanalysis explore snow‐AO relationship entire century for first time. shown have a consistently realistic simulation of onset Eurasian compared large number situ observations. It then used both satellite...
Abstract. We document the first version of Centre National de Recherches Météorologiques Earth system model (CNRM-ESM1). This is based on physical core CNRM climate 5 (CNRM-CM5) and employs Interactions between Soil, Biosphere Atmosphere (ISBA) Pelagic Interaction Scheme for Carbon Ecosystem Studies (PISCES) as terrestrial oceanic components global carbon cycle. describe a preindustrial 20th century simulation following CMIP5 protocol. detail how various reservoirs were initialized analyze...
For the first time in latest Assessment Report of Intergovernmental Panel on Climate Change (IPCC), water has been focus dedicated chapters both Working Group 1 (Chapter 8) and 2 4). Nevertheless, we argue here that not yet received full attention it deserves from scientists policymakers for several reasons. Firstly, historical temperature change further increased with use global warming levels motivated by an aim to be consistent current policy framings. Secondly, increasing paid extreme...
Understanding and controlling the interaction of graphene-based materials with cell membranes is key to development graphene-enabled biomedical technologies management graphene health safety issues. Very little known about ...