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Elucidating the Role of Clouds-Circulation Coupling in Climate

Total Cost €


EC-Contrib. €






Project "EUREC4A" data sheet

The following table provides information about the project.


Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Project website
 Total cost 3˙013˙334 €
 EC max contribution 3˙013˙334 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-AdG
 Funding Scheme ERC-ADG
 Starting year 2016
 Duration (year-month-day) from 2016-08-01   to  2021-07-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

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.


year authors and title journal last update
List of publications.
2019 Jessica Vial, Raphaela Vogel, Sandrine Bony, Bjorn Stevens, David M. Winker, Xia Cai, Cathy Hohenegger, Ann Kristin Naumann, Hélène Brogniez
A New Look at the Daily Cycle of Trade Wind Cumuli
published pages: 3148-3166, ISSN: 1942-2466, DOI: 10.1029/2019MS001746
Journal of Advances in Modeling Earth Systems 11/10 2020-03-13
2019 Max Popp, Sandrine Bony
Stronger zonal convective clustering associated with a wider tropical rain belt
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-019-12167-9
Nature Communications 10/1 2019-10-15
2017 David Coppin, Sandrine Bony
Internal variability in a coupled general circulation model in radiative-convective equilibrium
published pages: 5142-5149, ISSN: 0094-8276, DOI: 10.1002/2017GL073658
Geophysical Research Letters 44/10 2019-06-13
2017 Sandrine Bony, Bjorn Stevens, Felix Ament, Sebastien Bigorre, Patrick Chazette, Susanne Crewell, Julien Delanoë, Kerry Emanuel, David Farrell, Cyrille Flamant, Silke Gross, Lutz Hirsch, Johannes Karstensen, Bernhard Mayer, Louise Nuijens, James H. Ruppert, Irina Sandu, Pier Siebesma, Sabrina Speich, Frédéric Szczap, Julien Totems, Raphaela Vogel, Manfred Wendisch, Martin Wirth
EUREC4A: A Field Campaign to Elucidate the Couplings Between Clouds, Convection and Circulation
published pages: 1529-1568, ISSN: 0169-3298, DOI: 10.1007/s10712-017-9428-0
Surveys in Geophysics 38/6 2019-06-13
2016 Jessica Vial, Sandrine Bony, Jean-Louis Dufresne, Romain Roehrig
Coupling between lower-tropospheric convective mixing and low-level clouds: Physical mechanisms and dependence on convection scheme
published pages: 1892-1911, ISSN: 1942-2466, DOI: 10.1002/2016MS000740
Journal of Advances in Modeling Earth Systems 8/4 2019-06-13
2018 Hirohiko Masunaga, Sandrine Bony
Radiative Invigoration of Tropical Convection by Preceding Cirrus Clouds
published pages: 1327-1342, ISSN: 0022-4928, DOI: 10.1175/jas-d-17-0355.1
Journal of the Atmospheric Sciences 75/4 2019-06-13
2017 David W. J. Thompson, Sandrine Bony, Ying Li
Thermodynamic constraint on the depth of the global tropospheric circulation
published pages: 8181-8186, ISSN: 0027-8424, DOI: 10.1073/pnas.1620493114
Proceedings of the National Academy of Sciences 114/31 2019-06-13
2017 T. H. M. Stein, C. E. Holloway, I. Tobin, S. Bony
Observed Relationships between Cloud Vertical Structure and Convective Aggregation over Tropical Ocean
published pages: 2187-2207, ISSN: 0894-8755, DOI: 10.1175/JCLI-D-16-0125.1
Journal of Climate 30/6 2019-06-13
2016 Bjorn Stevens, Steven C. Sherwood, Sandrine Bony, Mark J. Webb
Prospects for narrowing bounds on Earth\'s equilibrium climate sensitivity
published pages: 512-522, ISSN: 2328-4277, DOI: 10.1002/2016EF000376
Earth\'s Future 4/11 2019-06-13
2017 Christopher E. Holloway, Allison A. Wing, Sandrine Bony, Caroline Muller, Hirohiko Masunaga, Tristan S. L’Ecuyer, David D. Turner, Paquita Zuidema
Observing Convective Aggregation
published pages: 1199-1236, ISSN: 0169-3298, DOI: 10.1007/s10712-017-9419-1
Surveys in Geophysics 38/6 2019-06-13
2018 David Coppin, Sandrine Bony
On the Interplay Between Convective Aggregation, Surface Temperature Gradients, and Climate Sensitivity
published pages: 3123-3138, ISSN: 1942-2466, DOI: 10.1029/2018ms001406
Journal of Advances in Modeling Earth Systems 10/12 2019-04-18
2019 Sandrine Bony, Bjorn Stevens
Measuring Area-Averaged Vertical Motions with Dropsondes
published pages: 767-783, ISSN: 0022-4928, DOI: 10.1175/jas-d-18-0141.1
Journal of the Atmospheric Sciences 76/3 2019-04-18
2019 Ying Li, David W. J. Thompson, Sandrine Bony, Timothy M. Merlis
Thermodynamic Control on the Poleward Shift of the Extratropical Jet in Climate Change Simulations: The Role of Rising High Clouds and Their Radiative Effects
published pages: 917-934, ISSN: 0894-8755, DOI: 10.1175/jcli-d-18-0417.1
Journal of Climate 32/3 2019-04-18
2019 Bjorn Stevens, Felix Ament, Sandrine Bony, Susanne Crewell, Florian Ewald, Silke Gross, Akio Hansen, Lutz Hirsch, Marek Jacob, Tobias Kölling, Heike Konow, Bernhard Mayer, Manfred Wendisch, Martin Wirth, Kevin Wolf, Stephan Bakan, Matthias Bauer-Pfundstein, Matthias Brueck, Julien Delanoë, André Ehrlich, David Farrell, Marvin Forde, Felix Gödde, Hans Grob, Martin Hagen, Evelyn Jäkel, Friedhelm Jansen, Christian Klepp, Marcus Klingebiel, Mario Mech, Gerhard Peters, Markus Rapp, Allison A. Wing, Tobias Zinner
A high-altitude long-range aircraft configured as a cloud observatory–the NARVAL expeditions
published pages: , ISSN: 0003-0007, DOI: 10.1175/bams-d-18-0198.1
Bulletin of the American Meteorological Society 2019-04-18
2018 Dagmar Fläschner, Thorsten Mauritsen, Bjorn Stevens, Sandrine Bony
The Signature of Shallow Circulations, Not Cloud Radiative Effects, in the Spatial Distribution of Tropical Precipitation
published pages: 9489-9505, ISSN: 0894-8755, DOI: 10.1175/jcli-d-18-0230.1
Journal of Climate 31/23 2019-04-12

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