Name: 2nd Workshop on Cloud Organization (WCO2)
Start: 2022-05-16T08:00:00+02:00
End: 2022-05-19T22:00:00+02:00
Location: Utrecht

2nd Workshop on Cloud Organization (WCO2)

from Monday 16 May 2022 (08:00) to Thursday 19 May 2022 (22:00)

Monday 16 May 2022

09:00 Arrival and registration
Arrival and registration
09:00 - 09:30
Room: Public Library

09:30

09:30 - 09:35
Room: Public Library
09:35 session 1, chair: Leif denby
session 1, chair: Leif denby
09:35 - 10:35
Room: Public Library
Contributions

09:35 Spontaneous clustering of convection in simple models, cloud resolving models and observations. - Adrian Tompkins (ICTP)

10:05 Links between spatial organization and plume rooting in a decentralized framework for convective transport - Roel Neggers (University of Cologne)

10:20 Explaining convective self-aggregation onset with a stochastic reaction-diffusion model of the Tropics - Giovanni Biagioli (University of Trieste)
10:35 Coffee
Coffee
10:35 - 11:00
Room: Public Library
11:00 session 2, chair: Maxime Colin
session 2, chair: Maxime Colin
11:00 - 12:00
Room: Public Library
Contributions

11:00 Influence of Aerosol Perturbation Duration on the Organization of Stratocumulus: Large Eddy Simulation and Heuristic Dynamical Modeling - Graham Feingold (NOAA)

11:30 Circling in on Convective Self-Aggregation - Silas Boye Nissen (Niels Bohr Institute, University of Copenhagen)

11:45 Cloud botany - shallow cumulus organization in an LES ensemble - Fredrik Jansson (TU Delft)
12:00 part I
part I
12:00 - 12:45
Room: Public Library
Contributions

12:00 In search of ghost cold pools and moisture rings - Adrian Tompkins (ICTP)

12:02 Understanding cloud systems structure and organization using a machine’s self-learning capability - Dwaipayan Chatterjee (Institute for Geophysics and Meteorology, University of Cologne)

12:04 Self-organized quantization and oscillations on continuous fixed-energy sandpiles - Jan Haerter (Niels Bohr Institute, Copenhagen University)

12:06 Network approaches to the geometric structure of shallow cloud fields - Franziska Glassmeier (TU Delft)

12:08 How well do stereo cameras observe shallow cumulus spatial organization? An evaluation combining atmospheric path-tracing and high-resolution Large-Eddy Simulations (LES) - Yannick Burchart

12:10 Diurnal signals in flower cloud organization in the upstream Tradewind regions during EUREC4A - Salima Ghazayel (University of Cologne)

12:12 The spacing and thermodynamics of updraughts in organised shallow cumulus - Steven Boeing (University of Leeds)

12:14 Dependence of Cloud Radiative Effect on Cloud Organization in the Trades - Pouriya Alinaghi (TU Delft) Franziska Glassmeier (TU Delft)

12:16 Clear-Sky Turbulence and Shallow Convection: New Insights Combining SAR Images, Satellite Brightness Temperature and In-Situ Measurements - Pierre-Etienne Brilouet

12:18 Cloud size and cloud spacing distributions of trade-wind cumuli observed at cloud base for a range of mesoscale organizations - Julius Mex (LMD)

12:20 Momentum transport and the organization of shallow convection - Alessandro Carlo Maria Savazzi (Delft University of Technology)

12:22 Shallow convective organization in the Trades as seen by self-learning artificial intelligence - Sabrina Schnitt (University of Cologne)

12:24 A new conceptual picture of the transition layer - Anna Lea Albright

12:26 Process Oriented evaluation of the oversea AROME configuration: focus on the representation of cloud organisation - Florent Beucher (Météo-France)

12:28 Competition between convection of mesoscale patterns and its impacts on self-organization in idealized CRM simulations - Wei-Ming Tsai (University of Miami)

12:30 Factors controlling precipitation in idealised monsoon simulations over an aquapatch - Maxime Colin (Leibniz Centre for Tropical Marine Research)

12:32 The Diurnal Evolution of Controls on Trade Wind Mesoscale Morphologies - Paquita Zuidema (University of Miami, RSMAS, USA)
12:45 Lunch
Lunch
12:45 - 13:45
Room: Public Library

13:45 posters + break
posters + break
13:45 - 15:15
Room: Public Library
15:15 session 3 + discussion (Franziska Glassmeier)
session 3 + discussion (Franziska Glassmeier)
15:15 - 17:00
Room: Public Library
Contributions

15:15 Numerical choices in Large-Eddy Simulations influence their ability to represent length scale growth in shallow convection - Stephan de Roode (Delft University of Technology)

15:30 Natural selection by buoyancy and the ecology of pattern in convection - Brian Mapes (University of Miami)

16:00 Monday discussion (Adrian Tompkins, Graham Feingold, Brian Mapes, Franziska Glassmeier)
17:30 Ice breaker at NODA (in the library)
Ice breaker at NODA (in the library)
17:30 - 18:30
Room: Public Library
Tuesday 17 May 2022
09:15 session 4, chair: Jule Radtke
session 4, chair: Jule Radtke
09:15 - 10:30
Room: Public Library
Contributions

09:15 Mesoscale organization of trade-wind clouds: lessons from EUREC4A and questions - Sandrine Bony (LMD/IPSL, CNRS, Sorbonne University)

09:45 Organisation of the trade-wind flower-clouds: driving processes and sensitivity - Thibaut Dauhut (CNRM (CNRS and Meteo France), Toulouse, France)

10:00 How well do large-eddy simulations capture the observed co-variability of trade-wind cloudiness and its environment? - Hauke Schulz (Max Planck Institute for Meteorology)

10:15 The role of three dimensional radiation in transitions from shallow to deep convection - Chiel van Heerwaarden
10:30 Coffee
Coffee
10:30 - 11:00
Room: Public Library
11:00 session 5, chair: Hauke Schulz
session 5, chair: Hauke Schulz
11:00 - 12:15
Room: Public Library
Contributions

11:00 The Organization and Vertical Structure of Shallow Convection in Marine Cold-Air Outbreaks, based on Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE): Developing the Framework for an Intercomparison Modeling Study - Bart Geerts (University of Wyoming)

11:15 Cold pool and mesh refinement: what is gained at higher resolutions? - Romain Fiévet (Niels Bohr Institute)

11:30 The ubiquity of mesoscale shallow circulation in the trades - Geet George (Max Planck Institute for Meteorology, Hamburg, Germany)

11:45 On the relationship between precipitation and the spatial structure in trade wind convection - Jule Radtke (Meteorological Institute, Center for Earth System Research and Sustainability, Universität Hamburg; Max Planck Institute for Meteorology, Hamburg, Germany )

12:00 In-Situ Perspectives on the Sub-Cloud Layer during EUREC4A/ATOMIC - Gijs de Boer
12:15 part 2
part 2
12:15 - 12:45
Room: Public Library
Contributions

12:15 Interactions between aerosol, clouds and circulation in high-resolution, cloud-resolving simulations with an imposed SST gradient - Andrew Williams (University of Oxford)

12:17 The role of mesoscale convective organization in the generation of extreme precipitation over Europe - Nicolas Da Silva (Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich, Norfolk, NR4 7TJ, United Kingdom)

12:19 Convective organization from the interaction between cold pools and thermally induced mesoscale circulations - Edward Engelbrecht (Jacobs University Bremen/Leibniz ZMT)

12:21 Sensitivity of Tropical Extreme Precipitation to Surface Warming in Aquaplanet Experiments Using the ICON Model - Alejandro uribe (Stockholm University)

12:23 The impact of land-sea contrasts in the aggregation of convection - Beth Dingley (AOPP, University of Oxford)

12:25 A high-level analysis of complex Arctic mixed-phase cloud dynamics - J. Antoon van Hooft (TU Delft)

12:27 MCS longevity in the transition from land to sea - Irene Livia Kruse (NBI)

12:29 The role of cold pools and microphysics schemes in the organization of convection - Alejandro Casallas (Abdus Salam International Centre for Theoretical Physics)

12:31 Open cell convection in HARMONIE-AROME - Wim de Rooy (researcher)

12:33 How does microphysical phase relate to cloud morphology transition speed within cold-air outbreaks over the northwest Atlantic? - Paquita Zuidema (University of Miami) Seethala Chellappan (University of Miami) the ACTIVATE Science Team Simon Kirschler (DLR)

12:35 Investigating extreme precipitations in tropical squall lines - Sophie Abramian (Institut Pierre-Simon Laplace)

12:37 Dependency of mesoscale organization on grid anisotropy in large-eddy simulations at Gray Zone resolutions - Stephan de Roode (Delft University of Technology)
12:45 Lunch
Lunch
12:45 - 13:45
Room: Public Library

13:45 posters+break
posters+break
13:45 - 15:15
Room: Public Library
15:15 session 6 + discussion (Pier Siebesma)
session 6 + discussion (Pier Siebesma)
15:15 - 17:00
Room: Public Library
Contributions

15:15 Properties and transitions of mesoscale convective organisation during EUREC4A using unsupervised learning - Leif Denby (University of Leeds)

15:30 Observations and simulations of stable water isotopes and their link to the mesoscale organization of shallow trade-wind clouds - Leonie Villiger (Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland )

15:45 Cloud response to higher warming conditions over the Tropical Atlantic using the COSMO model - Abraham Torres-Alavez (ETH Zürich)

16:00 Tuesday discussion (Sandrine Bony, Bjorn Stevens, Pier Siebesma)
19:30 Public talk
Public talk
19:30 - 21:00
Room: Public Library
Contributions

19:30 A short History of Cloud Observations in Art and Science - Bjorn Stevens Anna Lea Albright
Wednesday 18 May 2022
09:15 session 7, chair: Irene Livia Kruse
session 7, chair: Irene Livia Kruse
09:15 - 10:30
Room: Public Library
Contributions

09:15 Land effects on organised convection – mechanisms and applications - Cornelia Klein

09:45 Daytime convective development over land: the role of surface forcing - wojciech grabowski (NCAR)

10:00 Illuminating the Sub-Mesoscale Structure of Cold Pools with a Dense Station Network during FESSTVaL - Bastian Kirsch (University of Hamburg)

10:15 The Organization and Vertical Structure of Shallow Convection in Marine Cold-Air Outbreaks, based on the Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE): Observations - Bart Geerts (University of Wyoming)
10:30 Coffee
Coffee
10:30 - 11:00
Room: Public Library
11:00 session 8, chair: Benjamin Fildier
session 8, chair: Benjamin Fildier
11:00 - 12:30
Room: Public Library
Contributions

11:00 Evaluation of ECMWF lightning forecast over Indian subcontinent during 2020 premonsoon months - Parthasarathi Mukhopadhyay (Indian Institute of Tropical Meteorology)

11:15 A cold pool perturbation scheme to improve convective initiation in convection-permitting models - Mirjam Hirt

11:30 Dependency of precipitation and cloud radiative feedback on subgrid scale clouds structure; a machine learning approach - Sara Shamekh (Columbia University)

11:45 Reassessing the Cohen and Craig (2006) theory: Fluctuations in an equilibrium convective cloud ensemble at horizontal resolutions ranging from 2 km to 125 m - Julien Savre (Ludwig-Maximilians-Universität Munich)

12:00 Moisture transports and rain cell statistics in organised convection and their potential role in super Clausius-Clapeyron scaling - Geert Lenderink (KNMI)

12:15 Parametrising cold-pool effects in the Met Office Unified Model - Gabriel Rooney (Met Office UK)
12:30 Group photo
Group photo
12:30 - 12:45
Room: Public Library

12:45 Lunch
Lunch
12:45 - 13:45
Room: Public Library

13:45 posters+break
posters+break
13:45 - 15:15
Room: Public Library
15:15 session 9 + discussion (Jan Haerter)
session 9 + discussion (Jan Haerter)
15:15 - 16:45
Room: Public Library
Contributions

15:15 Self-aggregation of convective storms - caroline muller (CNRS/LMD)

15:45 Wednesday discussion (Caroline Muller, Cornelia Klein, Jan Haerter)
17:15 Boat to dinner
Boat to dinner
17:15 - 11:30
Room: Public Library
Thursday 19 May 2022
09:15 session 10, chair Steven Boeing
session 10, chair Steven Boeing
09:15 - 10:30
Room: Public Library
Contributions

09:15 Mesoscale organization of shallow convection: the role of rain and cold pools - Raphaela Vogel

09:45 How well can we simulate mesoscale cloud organisation as observed during EUREC4A ? - Pier Siebesma (Delft University of Technology) Louise Nuijens (TU Delft)

10:00 Low-level radiative cooling peaks in regimes of shallow convective organization - Benjamin Fildier (Laboratoire de Météorologie Dynamique, ENS, Paris)

10:15 Wind-responsive diurnal sea skin temperature for large-eddy simulations - Reyk Börner (University of Reading)
10:30 Coffee
Coffee
10:30 - 11:00
Room: Public Library
11:00 session 11 + discussion (Louise Nuijens, Pier Siebesma, Franziska Glassmeier, Jan Haerter)
session 11 + discussion (Louise Nuijens, Pier Siebesma, Franziska Glassmeier, Jan Haerter)
11:00 - 12:30
Room: Public Library
Contributions

11:00 Thursday discussion (Raphaela Vogel, Louise Nuijens)

11:45 Final discussion

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