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28 March 2017 : 9 h 00 min - 29 March 2017 : 18 h 00 min

GEWEX Upper Tropospheric Clouds & Convection PROcess Evaluation Study meeting

28 – 29 March 2017

City College of New York, New York, USA

Day 1

CUNY Advanced Science Research Center

9:45 UTCC PROES update & goals for this meeting
Claudia Stubenrauch

10:00 Convective Updraft Speeds : A Correlate to Climate Sensitivity
Leo Donner

Observational analyses
11:00 Coupling tropical convection to anvil properties using a cloud system approach
Sofia Protopapadaki, Claudia Stubenrauch (presenter)

11:25 Relationships between convective strength and anvil development based
on AIRS-CloudSat
Hanii Takahashi, Sofia Protopapadaki, Claudia Stubenrauch, and Z. Johnny Luo

11:50 Level of neutral buoyancy, Deep convective outflow, convective core and
entrainment rates: New insights from 5-years of CloudSat data
Hanii Takahashi, Z. Johnny Luo (presenter) and Graeme Stephens.

12:15 Identifying organized convection in GPM satellite data
Tony Del Genio and Greg Elsaesser

Heating of convection and UT clouds

14:15 Convective vs anvil heating structures and their impact on the large-scale circulation
Courtney Schumacher

14:40 Re-assessing the Role of Ice Clouds in Earth’s Radiation Budget 
Tristan L’Ecuyer

15:05 Determining Radiative Heating Rates of UT cloud systems
Claudia Stubenrauch, Sofia Protopapadaki, Artem Feofilov

Process studies
16:20 Diagnosing Cloud Microphysical Process Information from Remote Sensing
Measurements; A Feasibility Study Using Aircraft Data : Tropical Anvils Measured during TC4
Jay Mace and Sally Benson

16:45 Life cycle of ice crystals detrained from deep convection from airborne measurements
Eric Jensen

17:00 Diurnal variations and organization of convective systems over South China Sea
during summer monsoon onset
Wei-Ting Chen, Chien-Ming Wu, Wei-Ming Tsai, and Peng-Jen Chen

17:35 Discussions

Day 2

Process studies

9:00 Satellite data analysis of convective and UT cloud variabilities

Hiro Masunaga

9:25 Water balances of convective systems
Rachel Storer

9:50 The Characteristics of Deep Convection over Varying SSTs
Susan Van den Heever

11:00 Towards representing the impact of convection on cirrus
in a large scale climate model
Ulrike Burkhardt

11:25 In situ vs liquid-origin cirrus in ECHAM-HAM GCM
Blaz Gasparini

11:50 Improved diagnostics for UT cloud assessment in the LMDZ climate model
Marine Bonazzola, Sofia Protopapadaki, Claudia Stubenrauch (presenter)

14:00 Discussion

bring obs and models together, what and how and next steps :
Preparation of synergetic data to be in a form that could be adopted to start evaluating relations between UT clouds and convection in models.
– outline what we have data wise
– investigate what specific new diagnostics can be used for evaluating modelling at different scales (CRM which resolve convection and GCM which use parameterizations)
– discuss data analysis methods to be investigated to take into atmospheric flow (separate cirrus originating from convection and in-situ) and system evolution


28 March 2017 : 9 h 00 min
29 March 2017 : 18 h 00 min