Objectif This proposal focuses on two of climate science’s most fundamental questions: How sensitive is Earth's surface temperature to radiative forcing? and What governs the organization of the atmosphere into rain bands, cloud clusters and storms? These seemingly different questions are central to an ability to assess climate change on regional and global scales, and are in large part tied to a single and critical gap in our knowledge: A poor understanding of how clouds and atmospheric circulations interact.To fill this gap, my goal is to answer three questions, which are critical to an understanding of cloud-circulation coupling and its role in climate: (i) How strongly is the low-clouds response to global warming controlled by atmospheric circulations within the first few kilometres of the atmosphere? (ii) What controls the propensity of the atmosphere to aggregate into clusters or rain bands, and what role does it play in the large-scale atmospheric circulation and in climate sensitivity? (iii) How much do cloud-radiative effects influence the frequency and strength of extreme events?I will address these questions by organising the first airborne field campaign focused on elucidating the interplay between low-level clouds and the small-scale and large-scale circulations in which they are embedded, as this is key for questions (i) and (ii), by analysing data from other field campaigns and satellite observations, and by conducting targeted numerical experiments with a hierarchy of models and configurations.This research stands a very good chance to reduce the primary source of the forty-year uncertainty in climate sensitivity, to demystify long-standing questions of tropical meteorology, and to advance the physical understanding and prediction of extreme events. EUREC4A will also support, motivate and train a team of young scientists to exploit the synergy between observational and modelling approaches to answer pressing questions of atmospheric and climate science. Champ scientifique natural sciencesearth and related environmental scienceshydrologyengineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraftnatural sciencesearth and related environmental sciencesatmospheric sciencesmeteorologyatmospheric circulationnatural sciencesearth and related environmental sciencesgeophysicsnatural sciencesearth and related environmental sciencesatmospheric sciencesclimatologyclimatic changes Programme(s) H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC) Main Programme Thème(s) ERC-ADG-2015 - ERC Advanced Grant Appel à propositions ERC-2015-AdG Voir d’autres projets de cet appel Régime de financement ERC-ADG - Advanced Grant Institution d’accueil CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS Contribution nette de l'UE € 2 754 778,42 Adresse RUE MICHEL ANGE 3 75794 Paris France Voir sur la carte Région Ile-de-France Ile-de-France Paris Type d’activité Research Organisations Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Coût total € 3 013 334,00 Bénéficiaires (2) Trier par ordre alphabétique Trier par contribution nette de l'UE Tout développer Tout réduire CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS France Contribution nette de l'UE € 2 754 778,42 Adresse RUE MICHEL ANGE 3 75794 Paris Voir sur la carte Région Ile-de-France Ile-de-France Paris Type d’activité Research Organisations Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Coût total € 3 013 334,00 Tiers Entité juridique autre qu’un sous-traitant qui est affiliée ou juridiquement liée à un participant. L’entité réalise des travaux dans les conditions prévues par la convention de subvention, fournit des biens ou des services pour l’action, mais n’a pas signé la convention de subvention. Le tiers respecte les règles applicables au participant qui lui est lié dans le cadre de la convention de subvention en ce qui concerne l’éligibilité des coûts et le contrôle des dépenses. METEO-FRANCE France Contribution nette de l'UE € 258 555,58 Adresse AVENUE DE PARIS 73 94165 Saint Mande Cedex Voir sur la carte Région Ile-de-France Ile-de-France Val-de-Marne Type d’activité Research Organisations Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Coût total € 258 555,58