A5015237285- Climate variability and models
- Atmospheric and Environmental Gas Dynamics
- Distributed and Parallel Computing Systems
- Meteorological Phenomena and Simulations
- Scientific Computing and Data Management
- Medical Imaging Techniques and Applications
- Advanced Computational Techniques and Applications
- Geophysics and Gravity Measurements
- Methane Hydrates and Related Phenomena
- Climate Change Policy and Economics
- Atmospheric Ozone and Climate
- Hydrology and Watershed Management Studies
- demographic modeling and climate adaptation
- Geology and Paleoclimatology Research
- Atmospheric chemistry and aerosols
- Research Data Management Practices
- Environmental Monitoring and Data Management
- Multimedia Communication and Technology
- Oceanographic and Atmospheric Processes
- French Urban and Social Studies
- Hydrological Forecasting Using AI
- Tree-ring climate responses
- Climate Change, Adaptation, Migration
- Global Energy and Sustainability Research
- Atomic and Subatomic Physics Research
European Centre for Medium-Range Weather Forecasts
2021-2023
Institut Pierre-Simon Laplace
2012-2021
Sorbonne Université
2007-2020
Centre National de la Recherche Scientifique
2005-2020
Jet Propulsion Laboratory
2015
Université Paris Sciences et Lettres
2014
Laboratoire de Météorologie Dynamique
2007-2013
Centre de Gestion Scientifique
2013
Université de Versailles Saint-Quentin-en-Yvelines
2011
Laboratoire du Futur
2009
We present the global general circulation model IPSL-CM5 developed to study long-term response of climate system natural and anthropogenic forcings as part 5th Phase Coupled Model Intercomparison Project (CMIP5). This includes an interactive carbon cycle, a representation tropospheric stratospheric chemistry, comprehensive aerosols. As it represents principal dynamical, physical, bio-geochemical processes relevant system, may be referred Earth System Model. However, used in multitude...
Abstract This study presents the global climate model IPSL‐CM6A‐LR developed at Institut Pierre‐Simon Laplace (IPSL) to natural variability and response anthropogenic forcings as part of sixth phase Coupled Model Intercomparison Project (CMIP6). article describes different components, their coupling, simulated in comparison previous versions. We focus here on representation physical along with main characteristics carbon cycle. The model's climatology, assessed from a range metrics (related...
Abstract. In Paris, France, December 2015, the Conference of Parties (COP) to United Nations Framework Convention on Climate Change (UNFCCC) invited Intergovernmental Panel (IPCC) provide a special report in 2018 impacts global warming 1.5 °C above pre-industrial levels and related greenhouse gas emission pathways. Nairobi, Kenya, April 2016, IPCC panel accepted invitation. Here we describe response devised within Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) tailored,...
The IPSL-CM5A climate model was used to perform a large number of control, historical and change simulations in the frame CMIP5. refined horizontal vertical grid atmospheric component, LMDZ, constitutes major difference compared previous IPSL-CM4 version for CMIP3. From imposed-SST (Sea Surface Temperature) coupled numerical experiments, we systematically analyze impact resolution on simulated climate. refinement results systematic reduction biases mean tropospheric structures SST....
Abstract. The World Climate Research Programme (WCRP)'s Working Group on Modelling (WGCM) Infrastructure Panel (WIP) was formed in 2014 response to the explosive growth size and complexity of Coupled Model Intercomparison Projects (CMIPs) between CMIP3 (2005–2006) CMIP5 (2011–2012). This article presents WIP recommendations for global data infrastructure needed support CMIP design, future growth, evolution. Developed close coordination with those who build run existing (the Earth System Grid...
Abstract. The distribution of data contributed to the Coupled Model Intercomparison Project Phase 6 (CMIP6) is via Earth System Grid Federation (ESGF). ESGF a network internationally distributed sites that together work as federated archive. Data records from climate modelling institutes are published and then shared around world. It anticipated CMIP6 will produce approximately 20 PB be ESGF. In addition this large volume number value-added services required interact with ESGF; for example...
Climate information is necessary for the energy sector. However, use of climate projections has remained limited so far a number reasons such us lack consistency among projections, inadequate temporal and spatial resolution, model biases, guidance users, size data sets. In this work, we develop assess consistent ensemble high time space resolution that address these problems. First, methodology sub-ensemble selection developed proposed. Our dataset includes eleven 12 km-resolution...
Abstract. The CMIP6 project was the most expansive and ambitious Model Intercomparison Project (MIP), latest in a long history, extending back four decades. CMIP has captivated engaged broad, growing community focused on improving our climate understanding. It anchored ability to quantify attribute drivers responses of observed changes we are experiencing today. project's profound impact been achieved by combining science technology. This enabled production latest-generation simulations...
In this study, we examine the time evolution of relative contribution sulfate aerosols and greenhouse gases to anthropogenic climate change. We use new IPSL‐CM4 coupled model for which first indirect effect has been calibrated using POLDER satellite data. For recent historical period play a key role on temperature increase with cooling 0.5 K, be compared 1.4 K warming due gas increase. contrast, projected change 21st century is remarkably independent effects SRES‐A2 scenario. Those results...
Abstract. Studying the climate of last millennium gives possibility to deal with a relatively well-documented essentially driven by natural forcings. We have performed two simulations IPSLCM4 model evaluate impact Total Solar Irradiance (TSI), CO2 and orbital forcing on secular temperature variability during preindustrial part millennium. The Northern Hemisphere (NH) simulation reproduces amplitude NH reconstructions over Using linear statistical decomposition we evaluated that TSI similar...
Abstract Working across U.S. federal agencies, international and multiple worldwide data centers, spanning seven network organizations, the Earth System Grid Federation (ESGF) allows users to access, analyze, visualize using a globally federated collection of networks, computers, software. Its architecture employs system geographically distributed peer nodes that are independently administered yet united by common federation protocols application programming interfaces (APIs). The full ESGF...
We analyze the stratospheric Kelvin and Rossby‐gravity wave packets with periods of a few days in nine high‐top (i.e., stratosphere) models fifth Coupled Model Intercomparison Project (CMIP5). These simulate realistic aspects these waves represent them better than tropospheric convectively coupled analyzed previous studies. There is nevertheless large spread among models, those quasi‐biennial oscillation (QBO) produce larger amplitude without QBO. For this explained by fact that QBO never...
Abstract. In Paris, France, December 2015, the Conference of Parties (COP) to United Nations Framework Convention on Climate Change (UNFCCC) invited Intergovernmental Panel (IPCC) provide a "special report in 2018 impacts global warming 1.5 °C above pre-industrial levels and related greenhouse gas emission pathways". Nairobi, Kenya, April 2016, IPCC panel accepted invitation. Here we describe response devised within Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) tailored,...
Abstract The assessment of current and future risks for natural human systems associated with climate change largely relies on numerical simulations performed state‐of‐the‐art models. Various steps are involved in the development such models, from individual components system up to free parameter calibration fully coupled model. Here, we describe final tuning phase IPSL‐CM6A‐LR This alone lasted more than 3 years relied several pillars: (i) against present‐day conditions given a small...