Description The school will focus on the organization of convection in the tropics and its possible implications for climate sensitivity. Some idealized convection permitting models show spontaneous clustering of convection can occur, drying the tropical atmosphere and increasing infrared emission to space. This effect could imply a strong negative feedback on the climate that may be missing or poorly represented in global climate models. However, there is open debate concerning the mechanisms involved, the implications for climate, the evidence in the observations, the role of shallow clouds and convection, the spatial scales of instability and the connection of this idealized aggregation to common examples of tropical organization such as the Madden Julian Oscillation or tropical cyclones. The event will consist of a one-week school, with some introductory lectures and the chance to work with observations and model output to address questions related to convective organization. In the second week, participants will benefit from open debate with over 20 of the world’s leading scientists in the field. Experts will work with student groups to summarize the debates in position papers, including results from the first week’s exercises.

On Monday 8th July 2019 at 16:00 in the Budinich Lecture Hall, Leonardo Building a special event takes place;
ICTP Colloquia Series: THREE HOT TOPICS OF CLIMATE CHANGE
for details, see announcement poster and event link;
http://indico.ictp.it/event/8950/

video under, link

https://www.youtube.com/watch?v=y4BgmS-WqJM

School topics:
• Models of radiative-convective equilibrium
• Convective organization in high resolution models
• Evidence for organization in observations
• Implications for climate and climate sensitivity
• Representation in global models and their parameterization schemes
• Connection to MJO, hurricanes and other examples of convective organization

Invited speakers include:
Biasutti, Michela, IRI Columbia U., USA
Bony, Sandrine, LMD, France
Bordoni, Simona, Caltech, USA
Chaboureau, Jean-Pierre, Toulouse U./CNRS, France
Cronin Timothy, MIT, USA
Craig, George, LMU, Germany
Emanuel, Kerry, MIT, USA
Gezahegn, Addisu, LMD, France
Grabowski, Wojciech, UCAR, USA
Khairoutdinov, Marat, Stonybrook U., USA
Khouider, Boualem, Victoria U., Canada
Mapes, Brian, Miami U., USA
Marshall John, MIT, USA
Moncrieff, Mitch, UCAR, USA
Pincus, Rob, NOAA, USA
Randall, David, CSU, USA
Sherwood,Steve, UNSW,Australia
Stevens, Bjorn, MPIM, Germany
Vallis, Geoff K., Exeter U., U.K.
Yang, Da, Berkley U., USA
Zuidema, Paquita, RSMAS Miami, USA
Go to day
  • Monday, 1 July 2019
    • 08:00 - 21:30
      • 08:00 Registration - administrative formalities 2h0'
      • 10:00 INTRODUCTION TO CLIMATE 1h20'
        Speaker: Cathy Hohenegger (MPI, Germany)
        Material: Slides
      • 11:20 INTRO - the radiative equation, interaction with a slab - interaction with atmosphere gases, line broadening mechanisms - interaction with clouds - methods to model radn, 2 stream, 6 stream, 3D models, Monte Carlo, Spherical harmonic 1h20'
        Speaker: Robert Pincus (U. of Colorado, USA)
      • 12:40 lunch 1h20'
      • 14:00 THERMODYNAMICS INTRO 45'
        Speaker: Bordoni Simona (Caltech, USA)
      • 14:45 CONVECTION INTRO 45'
        Speaker: Adrian Tompkins (ICTP, Italy)
        Material: Slides
      • 15:30 coffee break 30'
      • 16:00 Manual classification of Shallow convection organisation 1h30'
        Speaker: Muller Caroline / Tompkins Adrian (LMD, France / ICTP, Italy)
        Material: Slides
      • 18:00 Ice breaker 2h0' ( Terrace )
  • Tuesday, 2 July 2019
    • 09:00 - 17:00
      • 09:00 CLOUD RESOLVING MODELS 1h30'
        Speaker: Allison Wing (FSU, USA)
        Material: Slides
      • 10:30 coffee break 30'
      • 11:00 METRICS OF CONVECTIVE ORGANISATION 1h30'
        Speaker: Addisu Semie Gezahegn (LMD, France)
        Material: Slides
      • 12:30 lunch 1h30'
      • 14:00 lab session - RCEMIP 1h30' ( Adriatico Guest House - Informatics Laboratory )
      • 15:30 coffee break 30'
      • 16:00 lab session 1h0' ( Adriatico Guest House - Informatics Laboratory )
  • Wednesday, 3 July 2019
    • 09:00 - 17:00
      • 09:00 CONVECTIVE PARAMETRIZATION 1h30'
        Speaker: Cathy Hohenegger (MPI, Germany)
        Material: Slides
      • 10:30 coffee break 30'
      • 11:00 CONVECTIVE ORGANISATION IN GLOBAL MODELS 1h30'
        Speaker: Chris Holloway (U. of Reading, U.K.)
        Material: Slides
      • 12:30 lunch 1h30'
      • 14:00 lab session 1h30' ( Adriatico Guest House - Informatics Laboratory )
      • 15:30 coffee break 30'
      • 16:00 lab session 1h0' ( Adriatico Guest House - Informatics Laboratory )
  • Thursday, 4 July 2019
    • 09:00 - 17:00
      • 09:00 IMPLICATIONS OF AGGREGATION FOR CLIMATE 1h30'
        Speaker: Chris Holloway (U. of Reading, U.K.)
        Material: Slides
      • 10:30 coffee break 30'
      • 11:00 CONVECTIVE SUPER -PARAMETRIZATION 1h30'
        Speaker: Wojciech Grabowski (UCAR, USA)
        Material: Slides
      • 12:30 lunch 1h30'
      • 14:00 lab session 1h30' ( Adriatico Guest House - Informatics Laboratory )
      • 15:30 coffee break 30'
      • 16:00 lab session 1h0'
  • Friday, 5 July 2019
    • 09:00 - 17:00
      • 09:00 Observations of convection organisation 1h30'
        Speaker: Michela Biasutti (IRI Columbia U., USA)
      • 10:30 coffee break 30'
      • 11:00 convection organisation on an acqua planet - theory of monsoons 1h30'
        Speaker: Simona Bordoni (Caltech, USA)
        Material: Slides
      • 12:30 lunch 1h30'
      • 14:00 lab session 1h30' ( Adriatico Guest House - Informatics Laboratory )
      • 15:30 coffee break 30'
      • 16:00 lab session 1h0' ( Adriatico Guest House - Informatics Laboratory )
  • Monday, 8 July 2019
    • 09:00 - 16:00 Introduction and Motivation
      • 09:00 Introduction motiviation and meet the lecturers session on the terrace with coffee 1h0'
        Speaker: Adrian Tompkins (ICTP, Trieste)
      • 10:00 What is Convective Aggregation and how can we measure it? 45' ( Kastler Lecture Hall (AGH) )
        Speaker: Allison Wing (FSU, USA)
        Material: Slides
      • 10:45 Fields, entities, and ecosystems: how can we best understand convection and its organization? 45'
        Speaker: Brian Mapes ((RSMAS, Miami U., USA))
        Material: Slides
      • 11:30 Convection aggregation in global convection permitting models 45'
        Speaker: Marat Khairoutdinov (Stonybrook U., USA)
      • 12:15 lunch break 1h30' ( )
      • 13:45 Introduction to lecturers and general poster session on Leonardo building Terrace (building change!) 1h30'
      • 15:15 coffee break 45'
    • 16:00 - 18:00 ICTP COLLOQUIUM - Budinich Lecture Hall, Leonardo Building
      for details see Colloquium website under link;
      http://indico.ictp.it/event/8950/
      Location:
      • 16:00 Clouds in the climate system, why so much uncertainty? 30'
        Speaker: Sandrine Bony (LMD, France)
      • 16:30 Will our weather extremes become even more extreme? 30'
        Speaker: Kerry Emanuel (MIT, USA)
      • 17:00 Beyond Global Warming 30'
        Speaker: Bjorn Stevens (MPIM, Germany)
    • 18:00 - 20:00
      • 18:00 Welcome reception 2h0' ( )
  • Tuesday, 9 July 2019
    • 09:00 - 18:30 Aggregation in observations
      • 09:00 short overview of themes 15'
        Speaker: Chris Holloway (U. of Reading, U.K.)
      • 09:15 Do observations matter? [subtitle: are we developing ideas that can be tested outside of the frameworks in which they were developed?] Observations matter and are underutilized 30'
        Speaker: Adrian Tompkins (ICTP, Italy)
      • 09:45 Do observations matter? [subtitle: are we developing ideas that can be tested outside of the frameworks in which they were developed?] Observations are largely irrelevant 30'
        Speaker: Bjorn Stevens (MPIM, Germany)
      • 10:15 open discussion 15'
      • 10:30 coffee break 30'
      • 11:00 Our understanding of how SST impacts aggregation remains poor 30'
        Speaker: Sandrine Bony (LMD, France)
        Material: Slides
      • 11:30 Our understanding of how SST impacts aggregation might be better than we think 30'
        Speaker: Timothy Cronin (MIT, USA)
        Material: Slides
      • 12:00 open discussion 30'
      • 12:30 lunch + teams 3h30'
      • 16:00 Panel leaders summary 1h30'
      • 17:30 Have convection modellers ignored basic theory, and does it matter? 1h0'
        Speaker: Geoffrey Vallis (Exeter U., U.K.)
  • Wednesday, 10 July 2019
    • 09:00 - 18:30 Alternative mechanisms for aggregation
      • 09:00 short overview of themes 15'
        Speaker: Cathy Hohenegger (MPI, Germany)
      • 09:15 Cloud-radiative feedback are key, and especially shallow convection-radiation is important for aggregation 30'
        Speaker: Caroline Muller (LMD, France)
      • 09:45 Self aggregation is driven by buoyancy heterogeneities in the boundary layer 30'
        Speaker: Da Yang (Berkley U., USA)
      • 10:15 open discussion 15'
      • 10:30 coffee break 30'
      • 11:00 Convection-water vapour feedback is key to organisation 30'
        Speaker: Kerry Emanuel (MIT, USA)
      • 11:30 Turbulence subgrid parameterizations are key to aggregation occurrence 30'
        Speaker: Jean-Pierre Chaboureau (Toulouse U./CNRS, France)
      • 12:00 open discussion 30'
      • 12:30 lunch + team work 3h30'
      • 16:00 Panel leaders summary 1h30'
      • 17:30 why microphysics in CRMs can not be trusted 1h0'
        Speaker: Wojciech Grabowski (UCAR, USA)
  • Thursday, 11 July 2019
    • 08:45 - 18:30 Are CRM models trustable?
      • 09:00 short overview of themes 15'
        Speaker: Caroline Muller (LMD, France)
      • 09:15 Do cloud permitting model represent cloud-radiative-dynamical interactions adequately? (dynamical = larger scale circulations) - No 30'
        Speaker: Rob Pincus (U. of Colorado, USA)
      • 09:45 Do cloud permitting model represent cloud-radiative-dynamical interactions adequately? (dynamical = larger scale circulations) - Yes 30'
        Speaker: Paquita Zuidema (RSMAS, USA)
        Material: Slides
      • 10:15 discussion 15'
      • 10:30 coffee break 30'
      • 11:00 Subgrid parameterizations of climate models need to represent aggregation - Yes 30'
        Speaker: Mitch Moncrieff (UCAR, USA)
      • 11:30 Subgrid parameterizations of climate models need to represent aggregation - No 30'
        Speaker: Boualem Khouider (Victoria U., Canada)
      • 12:00 discussion 15'
      • 12:15 lunch + team work 3h45'
      • 16:00 Panel leaders summary 1h30'
      • 17:30 Unforced Errors 1h0'
        Speaker: David Randall (CSU, USA)
        Material: Slides
    • 20:00 - 22:30
      • 20:00 dinner in town 2h30'
  • Friday, 12 July 2019
    • 09:00 - 12:30
      • 09:00 short overview of themes 15'
        Speaker: Michela Biasutti (IRI Columbia U., USA)
      • 09:15 Can simple models from statistical mechanics shed light into self-aggregation, or are detailed fluid dynamics including boundary-layer structures crucial? - simple models 30'
        Speaker: George Craig (LMU, Germay)
      • 09:45 Can simple models from statistical mechanics shed light into self-aggregation, or are detailed fluid dynamics including boundary-layer structures crucial? - fluid dynamics 30'
        Speaker: Steve Sherwood (UNSW, Australia)
      • 10:15 discussion 15'
      • 10:30 coffee break 30'
      • 11:00 General discussion - aggregation, whither, whence and why? 1h30'
        • Discussion of potential special issue, paper writing and future ICTP meetings/sessions 30'