Improvement and calibration of clouds in models
Centre International de Conférences - Météo-France - Toulouse - France April 12-16, 2021
CIC meetings
  CIC meetings

Monday, April 12 LES, Observations and Parameterizations (I) Session
Tuesday, April 13 Tuning and Sensitivity Session
Wednesday, April 14 Cloud Radiative Effect Session
Thursday, April 15 LES, Observations and Parameterizations (II) Session
Friday, April 16 Future of Clouds in Models Session

Monday, April 12
  14:20-14:30 Introduction to the conference.
Fleur Couvreux
  14:30-15:00 Results of the High-Tune project.
Frédéric Hourdin & Fleur Couvreux
  15:00-15:15 Toward Lagrangian simulations of EUREC4A/ATOMIC cloud regimes.
Steven Boeing
  15:15-15:30 Toward realistic cloud transitions during cold air outbreaks in ModelE.
Florian Tornow
  15:30-15:45 Organization development in shallow cumulus precipitating convection.
Oumaima Lamaakel
  15:55-16:10 The strong impact of weak horizontal convergence on continental shallow convection.
Marcin Kurowski
  16:10-16:15 Interactions between the Amazonian rainforest and cumuli clouds: A large-eddy simulation, high-resolution ECMWF-IFS and observational intercomparison study.
Jordi Vila
  16:15-16:20 Constraining Stochastic Parametrisation Schemes using High-Resolution Model Simulations.
Hannah Christensen
  16:20-16:25 Continental shallow cumulus clouds in E3SM parameterizations against ARM observations and LES.
Yunyan Zhang
  16:25-16:30 On the role of aerosol characteristics and parameterization schemes on Arctic mixed-phase clouds.
Luisa Ickes
  16:30-16:45 A physically-based bimodal diagnostic cloud scheme: description and evaluation.
Kwinten Van Weverberg
  16:45-17:00 Discussion

  17:00-17:15 Prediction of the bulk liquid fraction of mixed-phase particles in the Predicted Particle Properties (P3) microphysics scheme.
Mélissa Cholette
  17:15-17:30 CLUBB+MF in CAM6: implementation and evaluation of shallow convection cases.
Mikael K. Witte
  17:30-17:45 Towards operational implementation: A stochastic shallow convection scheme.
Maike Ahlgrimm
  17:55-18:00 Improved parametrization of the boundary layer in Harmonie-Arome with a focus on low clouds.
Wim de Rooy
  18:00-18:05 Local impact of stochastic shallow convection on clouds and precipitation in the tropical Atlantic.
Mirjana Sakradzija
  18:05-18:10 Impacts of a change in deep convection scheme on the ARPEGE data assimilation system.
Antoine Hubans
  18:10-18:15 A Unified Eddy-Diffusivity/Mass-Flux Approach for Modeling Atmospheric Convection.
Kay Suselj
  18:15-18:45 Discusssion

Tuesday, April 13
  9:15-9:30 Synthesis of discussion from the previous day.
Daniel Klocke
  9:30-9:45 A machine learning assisted stochastic cloud population model as a parameterization of cumulus convection.
Samson Hagos
  9:45-10:00 Development of a physically-based parameterization of the raindrop formation processes through machine-learning.
Azusa Takeishi
  10:00-10:15 Assessing calibration issues and intrinsic limits of a convection parameterization using machine learning.
Romain Roehrig
  10:15-10:30 Machine-learned atmospheric optical properties for radiative transfer computations.
Menno Veerman
  10:40-10:55 Parameterization and tuning of cloud and precipitation overlap in LMDz.
Ludovic Touze-Peiffer
  10:55-11:10 Characterising Convection Schemes Using Their Linearised Responses to Convective Tendency Perturbations.
Yi-Ling Hwong
  11:10-11:15 Sensitivity of observable output of modeled microphysics to stochastically perturbed parameters.
Tomislava Vukicevic
  11:15-11:20 A Hybrid Deep Learning CNN-LSTM Model for Predicting Monthly Rainfall Over Japan.
Paul Adigun
  11:20-11:25 Tropical free-tropospheric humidity differences in global storm-resolving models.
Theresa Lang
  11:25-11:30 Microphysical sensitivities in global storm-resolving simulations (SRMs).
Ann Kristin Naumann
  11:30-11:35 Impact of middle atmospheric humidity on boundary layer turbulence and clouds.
Neelam Namadev Malap
  11:35-11:40 Interpretable Machine Learning and Remote Sensing for Cloud Detection and Classification.
Thomas Chen
  11:50-12:20 Climate model development and the role of machine learning.
Daniel Williamson
  12:20-12:50 Discussion

Wednesday, April 14
  14:30-14:45 Synthesis of discussion from previous day.
Frédéric Hourdin
  14:45-15:15 Representing 3D effects in atmospheric radiation schemes.
Robin Hogan
  15:15-15:30 Addressing radiation and cloud uncertainties with the new radiation scheme ecRad in ICON.
Sophia Schäfer
  15:30-15:45 Process-based climate model development harnessing machine learning: III. The Representation of Cumulus Geometry and their 3D Radiative Effects.
Najda Villefranque
  16:00-16:15 A LES-benchmark case for surface solar irradiance variability under shallow cumulus.
Chiel van Heerwaarden
  16:15-16:30 To what extent does the radiative effect of low-level clouds depend on an accurate description of their vertical structure?
Raphaël Lebrun
  16:30-16:45 Introducing cloud horizontal overlap at NWP scales (1-10 km) in a fast 3D radiative transfer model.
Mihail Manev
  16:45-17:00 The Contributions of Shear and Turbulence to Cloud Overlap for Cumulus Clouds.
Thijs Heus
  17:00-17h15 Uncertainty of shortwave cloud radiative impact due to the parameterization of liquid cloud optical properties.
Erfan Jahangir
  17:15-17:30 Evaluation of low-level marine tropical clouds in CMIP6 models: the 'too few too bright' bias.
Dimitra Konsta
  17:45-17:50 Increasing resolution and resolving convection improves the simulation of cloud-radiative effects over the North Atlantic.
Fabian Senf
  17:50-17:55 Development of a Fast Three-Dimensional Dynamic Radiative Transfer Solver for Numerical Weather Prediction Models.
Richard Maier
  17:55-18:00 Emergent Constraints on Regional Cloud Feedbacks.
Nicholas James Lutsko
  18:00-18:05 Effects of different cloud overlapping parameters on simulated total cloud fraction over the globe and East Asian region.
Haibo Wang
  18:05-18:30 Discusssion

Thursday, April 15
  9:00-9:15 Synthesis of discussion from previous day.
Fabian Jakub
  9:15-9:30 Convective momentum transport through the subtropical shallow convection in LES simulations.
Vishal Dixit
  9:30-9:45 Turbulent effects and dynamics of the cloud-environment interface in a LES of a growing cumulus congestus.
Clément Strauss
  9:45-10h00 Improved Ice Aggregation Formulation in a Two-Moment Microphysics Scheme.
Markus Karrer
  10:00-10:15 Process-oriented Evaluation of cloud parameterizations using a Cloud System Concept.
Claudia J. Stubenrauch
  10:25-10:30 Improving convection in LES through detailed land-surface modelling.
Bart J.H. van Stratum
  10:30-10:35 Application of Remote Sensing to Study Dynamical and Morphological Characteristics of Meso-Scale Convective Systems to Develop 'Thunderstorms Numerical Prediction Model (TNPM)'Over Tropics'.
Virendra Kumar Goswami
  10:35-10:40 Evaluation and improvement of cloud and precipitation processes of NICAM with ULTIMATE.
Masaki Satoh
  10:40-10:45 Aerosol-cloud-turbulence interactions in well-coupled Arctic boundary layers over open water.
Jan Chylik
  10:45-11:00 Realities of developing and improving parameterizations related to clouds in global climate models.
Hideaki Kawai
  11:00-11:15 Sensitivity of ice formation processes in the ice modes scheme.
Tim Lüttmer
  11:15-11:30 A new diagnostic cloud scheme for heterogeneous moist parameterisations.
Martin Köhler
  11:30-11:45 Improvement of a representation of mixed-phase clouds, and its impact on a global cloud-system-resolving simulation.
Akira T. Noda
  11:45-11:50 Cloud microphysical parameterization and Orography influence on extreme rainfall event of Kerala (2018).
Sandeep Pattnaik
  11:50-11:55 A cold pool perturbation scheme to improve convective initiation in convection-permitting models.
Mirjam Hirt
  11:55-12:00 Recent developments in prognostic physics in ARPEGE-Climate: Turbulence in the presence of convection and discretization of convective vertical velocity in PCMT.
Jean-François Guérémy
  12:00-12:05 Persistence behaviour of heat and momentum fluxes in convective surface layer turbulence.
Subharthi Chowdhuri
  12:15-12:45 Using LES and observations to inform the representation of convective organization and memory in next-generation Earth System Models.
Roel Neggers
  12:45-13:00 Discusssion

Friday, April 16
  14:15-14:30 Synthesis of discussion from previous day.
Fleur Couvreux
  14:30-14:45 Comparing convective memory in different schemes with imposed fixed RCE state.
Maxime Colin
  14:45-15:00 Memory properties in cloud-resolving simulations of the diurnal cycle of deep convection.
Chimène Laure Daleu
  15:00-15:15 Object-oriented analysis of coherent boundary-layer structures in high-resolution simulations.
Florent Brient
  15:15-15:30 Pressure Drag for Shallow Cumulus Clouds: From Thermals to the Cloud Ensemble.
Jian-Feng Gu
  15:30-15:45 Some challenges for the future representation of clouds in global models.
Richard Michael Forbes
  15:55-16:25 CliMA's Approach Toward Data-Informed Climate Models With Quantified Uncertainties.
Tapio Schneider
  16:25-16:40 On the use of Emulators, built from Ensembles of Large Eddy Simulations, to study Clouds and Aerosol-Cloud Interactions.
Graham Feingold
  16:40-16:55 Science and Deployment Plan for the Department of Energy (DOE) 3rd Atmospheric Radiation Measurement (ARM) Mobile Facility: Coupled Observational-Modeling Studies of Land-Aerosol-Cloud Interactions in the Southeastern United States.
Chongai Kuang
  16:55-17:10 How semi-automatic tuning tools can help parameterization improvement: Application to the sub-grid water distribution of a statistical cloud scheme.
Louis d'Alençon
  17:20-17:25 Characterising the shape, size and orientation of cloud-feeding coherent boundary layer structures.
Leif Denby
  17:25-17:30 A new terrain-following vertical coordinate formulation to improve the simulation of fog and low stratus in atmospheric models.
Stephanie Westerhuis
  17:30-17:35 Higher Vertical Resolution for Select Physical Processes in the Energy Exascale Earth System Model (E3SM).
Hsiang-He Lee
  17:35-17:40 Vertical grid-refinement for stratocumulus clouds in ECHAM-HAM.
David Neubauer
  17:15-17:45 Final discusssion

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