EGU26-6271, updated on 13 Mar 2026
https://doi.org/10.5194/egusphere-egu26-6271
EGU General Assembly 2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Poster | Thursday, 07 May, 10:45–12:30 (CEST), Display time Thursday, 07 May, 08:30–12:30
 
Hall X5, X5.1
The EUREC4A Model Intercomparison Project: A first look at our ability to simulate trade cumuli at hectometre- and storm-resolving resolutions
Martin Janssens1,2, Pier Siebesma2,9, Florent Beucher3, Florent Brient4, Jingyi Chen5, Fleur Couvreux3, Thijs Heus6, Fredrik Jansson2, Frans Liqui-Lung7, Adrian Lock8, Girish Raghunathan6, Wim De Rooy9, Hauke Schulz10, Bart Van Stratum2, Abraham Torres10, and Bert Van Ulft9
Martin Janssens et al.
  • 1Wageningen University & Research, Meteorology and Air Quality, Netherlands (m.janssens@tudelft.nl)
  • 2Delft University of Technology, Geoscience and Remote Sensing, Netherlands
  • 3CNRM, Université de Toulouse, Météo‐France, CNRS, Toulouse, France
  • 4LMD, CNRS, Sorbonne Universite, Paris, France
  • 5Nanjing University of Information Science and Technology, Nanjing, China
  • 6Cleveland State University, Cleveland, United States of America
  • 7Monash University, Melbourne, Australia
  • 8UK Met Office, Exeter, United Kingdom
  • 9Royal Netherlands Meteorological Institute, De Bilt, Netherlands
  • 10Danish Meteorological Institute, Copenhagen, Denmark

We report the first results of an intercomparison of nine atmospheric models with horizontal resolutions between 150 m and 2.5 km: ICON, DALES, MesoNH, MicroHH, MetOffice UM, HARMONIE-AROME, AROME, WRF, and COSMO. These models all simulated shallow cumulus convection over the subtropical Atlantic Ocean during the period of the EUREC4A field campaign (Jan-Feb 2020), most of them with open boundary conditions and on large (>500 km) domains. Our "EUREC4A-MIP" seeks to answer how consistently such models reproduce i) statistics of the observed atmospheric state, clouds and energy/water budgets over large (200 km) areas, ii) the horizontal cloud organization that set the regions' contribution to the planetary albedo and iii) the coupling between clouds and circulations at mesoscales. We extend an open invitation for further exploration of the simulation data, which we publish through the EUREC4A intake catalog.

How to cite: Janssens, M., Siebesma, P., Beucher, F., Brient, F., Chen, J., Couvreux, F., Heus, T., Jansson, F., Liqui-Lung, F., Lock, A., Raghunathan, G., De Rooy, W., Schulz, H., Van Stratum, B., Torres, A., and Van Ulft, B.: The EUREC4A Model Intercomparison Project: A first look at our ability to simulate trade cumuli at hectometre- and storm-resolving resolutions, EGU General Assembly 2026, Vienna, Austria, 3–8 May 2026, EGU26-6271, https://doi.org/10.5194/egusphere-egu26-6271, 2026.