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11 October 2018 : 8 h 00 min - 17 h 00 min

2018 UTCC PROES Workshop
Oct 22 – 23, 2018 | Paris, France

Agenda GEWEX Upper Tropospheric Clouds & Convection PROcess Evaluation Study meeting, UPMC Sorbonne University, Paris, France

Day 1 (Room 24 – 02, Tour Zamansky (central tower), 24th floor)

09:00 Registration

09:10 Welcome, Logistics – Claudia Stubenrauch

09:20 GEWEX update
Graeme Stephens

09:35 UTCC PROES update & goals for this meeting
Claudia Stubenrauch

09:50 The Release 5 CloudSat Products: Upgrades of Relevance to UT Cloud Process Studies
Tristan L’Ecuyer, University of Wisconsin, USA

Observational analyses of mesoscale convective systems (20 minutes each)

10:15 A Mesoscale Convective Systems Database Over the Tropical belt for the 2012-2016 Period, derived from the Meteorological Geostationary fleet
Thomas Fiolleau, CNRS, LEGOS, France

10:40 MCS life cycle and precipitation in the tropics: climatology and extremes
Remy Roca, CNRS, LEGOS, France

11:05 coffee break

11:25 MCS cloud life cycle from merged satellite data
Dominique Bouniol, CNRM, GMME, France

11:50 The life cycle of anvil clouds from SEVIRI
Luca Bugliario, DLR, Germany

12:15 Monitoring deep convection and convective overshooting using MHS : A CloudSat/Calipso- based assessment
Jean-François Rysman, LMD, France

12:40 lunch

14:15 Horizontal emissivity structure of UT cloud systems and resulting heating (A-Train Synergy)
Claudia Stubenrauch, CNRS, LMD, France

Water Vapor and Convective transport (20 minutes each)

14:40 Statistical downscaling of water vapour satellite measurements from observations of tropical ice clouds
Gulia Carella, LSCE, France

15:05 Upper tropospheric water vapour and its interaction with cirrus clouds – Insights from two decades of IAGOS in-situ observations
Andreas Petzold, FZ Juelich, Germany

15:30 High convective clouds in the Asian monsoon TTL
Bernard Legras, CNRS, LMD, France

15:55 On the Use of Tracer Measurements to Diagnose Convective Transport Pathways from the PBL to the UT
Johnny Luo, CUNY, City College, USA

16:20 Coffee and Discussion : summarizing observational advances and potential diagnostics for comparison to models

Process studies (25 minutes)

17:00 The dynamical and microphysical support of convective anvils
Susan Van den Heever, CSU, USA

17:30 Discussions on potential of process studies

Day 2 (Earth, Environment and Biodiversity Faculty Conference Room, Tower 45/55, 3rd floor)

Climate variation and feedbacks (20 minutes each)

09:30 Observed cloud anomalies associated with the North Atlantic Oscillation, and their radiative feedback
Georgios Papavasileiou, IMK-TRO, KIT, Germany

09:55 Regional Intensification of the tropical hydrological cycle during ENSO
Graeme Stephens, NASA JPL, USA

10:20 Roles of Convection in the Maintenance of Tropical Margins
Hirohiko Masunaga, Nagoya University, Japan

10:45 coffee break

11:10 Quantifying the relative importance of the middle and upper troposphere for the clear-sky outgoing longwave radiation
Venkatachalam Ramaswamy, NOAA GFDL, USA

11:35 Discussions on cirrus heating and feedback

12:25 lunch

Parameterizations and model diagnostic studies (20 minutes each)

13:55 Simulating ice crystal formation by convective detrainment and in-situ formation with our new cloud routine

Steffen Muench, ETHZ, Switzerland

14:20 Using a Cloud System Concept to assess bulk ice fall speed parameterizations in the LMDZ GCM
Marine Bonazzola, LMD, France

14:45 A parametrization of the dynamics of cold pool population in the LMDZ GCM
Jean-Yves Grandpeix, LMD, France

15:10 High cloud responses to aerosols and surface warming in two versions of E3SM with different cloud and convection tunings
Po-Lun Ma, PNNL, USA

15:35 Coffee and Discussion bring obs and models together, and next steps :

    cooperations built since last meeting
    synergetic UT cloud system data for climate studies and model assessment
    other specific new diagnostics to be used for evaluating modelling at different scales (CRM which resolve convection and GCM which use parameterizations)
    preparation of review article ?


11 October 2018
8 h 00 min - 17 h 00 min