CFMIP/GCSS/EUCLIPSE Meeting on Cloud Processes and Climate Feedbacks,

        The Met Office, Exeter, United Kingdom,

6th-10th June, 2011.

 

 

Monday 6th June – Understanding, evaluating and improving the representation of clouds and

cloud feedbacks in global models

 

Last updated 1^st June

 

Please note that oral slots include 5 minutes for questions.

 

Monday  6^th June

 

9:00 Registration (Reception) and Coffee (Green Island 2^nd Floor Balcony)

 

Monday Morning Plenary (Green Island Conf 1/2)

 

9:30      Opening and welcome – practical issues (Mark Webb/Adrian Lock, Met Office)

9:40      CFMIP within the context of CMIP5 and AR5. Sandrine Bony (LMD/IPSL)

10:00    GCSS Overview. Jon Petch (Met Office)

10:20    EUCLIPSE Overview. Pier Siebesma (KNMI)

 

10:40    Coffee (Green Island 2^nd Floor Balcony)

 

11:10    Evaluating Southern Ocean clouds and radiation biases - New techniques and results.

            Christian Jakob (Monash University)

11:30    Reconciling GCM-simulated and satellite-observed views of clouds: MODIS, ISCCP and

            the applicability of instrument simulators.  Robert Pincus (Univ. of Colorado)

11:50    Cloud, radiation, and precipitation changes with midlatitude storm strength and frequency

and the resulting climate feedbacks in observations and models.

George Tselioudis (Academy of Athens)

 

12:10    Poster introductions

 

12:30    Lunch (Green Island 2^nd Floor Balcony) and Posters (Green Island Conf 2)

 

 

Monday  6^th June  Posters

 

• Dependency of feedbacks on forcing and climate state in perturbed parameter ensembles.

Masakazu Yoshimori (Univ of Tokyo)

• Time-Invariance of Low-Cloud Albedo Feedbacks in CMIP3. Neil Gordon (PCMDI)
• Evaluation of CMIP5 Simulations of Ice and Liquid Water Content/Path.

Jui-Lin Li (JPL/CalTech)

• Analysis of Multi-decadal Satellite Observations for Signs of Cloud Feedback.

Stephen A. Klein (PCMDI/LLNL)

• Tropical regimes in aquaplanet general circulation models. Boutheina Oueslati (CNRM)
• Further sensitivity tests on the aqua-planet configuration using NICAM. 

Shin-ichi Iga (RIKEN)

• Characteristics of Shallow Cumulus inferred from ARM observations over the Southern

Great Plains. Yunyan Zhang (PCMDI)

• Analysis of prognostic cloud scheme increments in a climate model.

Cyril Morcrette (Met Office)

• Influence of the monthly cloud, radiation, and precipitation diurnal cycle on long-term

variability in the CanAM4. Patrick Taylor (NASA Langley)

• The Role of Ocean Dynamics in Determining the Tropical Cloud and Water Vapor

Feedbacks.  De-Zheng Sun (NOAA)

 

Monday Afternoon Plenary (Green Island Conf 1/2)

 

14:00    Can estimates of climate variations during the satellite observation periode be used to

contrains cloud feedbacks under global warming?  Yoko Tsushima (Met Office)

14:20    Response of upper clouds in global warming experiments obtained using a global non-

            hydrostatic model with explicit cloud processes.   Masaki Satoh (Univ. of Tokyo/JAMSTEC)

14:40    Transient cloud changes and reversibility in idealized climate change scenarios.

Mark Ringer (Met Office).

15:00    CMIP Low Cloud Feedback Interpreted Through a Mixed-Layer Model.

            Peter Caldwell (PCMDI/LLNL)

15:20    Climate feedbacks in idealized radiative-convective equilibrium simulations with

tropical cyclones. Marat Khairoutdinov (Stony Brook, NY)

 

15:40    Coffee (Green Island 2^nd Floor Balcony) & Posters (Conf 2)

 

16:10    Hazy aquaplanet experiments with CAM5. Brian Medeiros (NCAR)

16:30    Fast and slow timescales in the tropical low-cloud response to increasing CO₂ in

two climate models. Masahiro Watanabe (AORI)

16:50    Forcing, feedbacks and equilibrium climate sensitivity of the CMIP5 models.

            Timothy Andrews (Met Office)

17:10    Rapid cloud adjustments, cloud feedbacks and large-scale forcings. Mark Webb (Met Office)

 

17:30    Discussion

 

18:00    Drinks and canapé reception. (Ground Floor ‘The Street’)

 

19:30    Coaches provided back to central Exeter (to the Jury’s Inn and White Hart)

 

Tuesday 7th June – AM  Understanding, evaluating and improving the representation of

clouds and cloud feedbacks in global models - continued

 

Tuesday Morning Plenary (Green Island Conf 1/2)

 

09:00    Clouds and climate sensitivity in two recently released versions of the Community

Atmosphere Model (CAM). J.E. Kay (NCAR)

9:20      Physics Parameter Ensemble of MIROC5 AOGCM.

Tomoo Ogura on behalf of Hideo Shiogama (NIES)

9:40      Diagnosing cloud feedbacks using nonlinear radiative kernels.  Ben Sanderson (NCAR)

10:00    Cloud feedbacks relevant to the tropospheric energy budget.

F. Hugo Lambert (Exeter University)

10:20    A methodology to analyze the response of clouds and precipitation to climate change

simulated by climate models. Sandrine Bony (LMD/IPSL)

 

10:40    Coffee (Green Island 2^nd Floor Balcony)

 

11:10    Analysis of mechanisms controlling tropical low cloud feedback in IPSLCM5a model.  

Florent Brient (LMD)

11:30    Present-day biases and future changes in intra-seasonal variability of European

temperatures: a multi-model analysis from CMIP5 and CFMIP2. J. Cattiaux, (MeteoFrance)

11:50    A Novel Technique for Computing and Partitioning Cloud Feedbacks. Mark Zelinka, (PCMDI)

 

12:10 Poster introductions

 

12:30 Lunch (Green Island 2^nd Floor Balcony) and Posters (Green Island Conf 2)

 

Posters Tuesday 7^th June

 

• Comparison of the Variability of Marine Boundary-layer Clouds with SST between the Cloud

Deck Regions and the Rest of the Subtropics and Tropics, Kuan-Man Xu (NASA Langley)

• Confronting the 3D and SCM evaluation of the new physical set of parameterization

developed at LMD on atmospheric research observatories. F. Cheruy (LMD)

• An overview to the ICON model physics - first results.  Martin Kohler (DWD)
• Change in high clouds in warming climate in a GCM and a global convective system

resolving model.  Yoko Tsushima (Met Office)

• On the relationship between cloud vertical structure and the large-scale tropical circulation:

observational analysis and evaluation of climate models.

Romain Roehrig and Sandrine Bony (LMD/IPSL)

• Overview of CNRM-CM5: Model description, evaluation and preliminary analyses.

Hervé Douville (CNRM)

• CFMIP diagnostics in ECHAM6.  Marc Salzmann (MPI)
• Early results from HadGEM2-A CFMIP-2 experiments.  Mark Webb (Met Office)
• Reliability of multi-model and structurally different single-model ensembles.

Tokuta Yokohata (National Institute for Environmental Studies)

• Understanding processes controlling simulated low-cloud changes in the subtropics.

Xin Qu (UCLA)

• Boundary layer decoupling as observed in VOCALS-Rex.

Chris Bretherton and Chris Jones (Univ. of Washington)

 

 

Tuesday Afternoon Plenary (Green Island Conf 1/2)

 

14:00    GEWEX Cloud Assessment: a review  Claudia Stubenrauch (CNRS/IPSL)

14:20    Atmosphere feedbacks during ENSO in CGCMs.  Eric Guilyardi (IPSL/NCAS)

14:40    Transpose-AMIP.  Keith Williams (Met Office)

15:00    Progress using initial tendency and short-range forecast error methodologies.

Mark Rodwell, Daniel Klocke (ECMWF)

15:20    Evaluation of the IPSL climate model in weather-forecast mode. 

Solange Fermepin, Sandrine Bony, Laurent Fairhead and Jean-Yves Grandpeix. (LMD/IPSL)

 

15:40    Coffee (Green Island 2^nd Floor Balcony) & Posters (Conf 2)

 

16:10    Evaluation of two cloud parametrization schemes using ARM and Cloud-Net observations.

Cyril Morcrette (Met Office)

16:30    Synthesis of ground-based atmospheric measurements from three European observatories:

 their utility for climate model evaluation in the framework of the EUCLIPSE project.

Martial Haeffelin for M. Chiriaco (CNRS/IPSL)

16:50    Simulation of cloud radiative forcing over land with ARPEGE: the case of West Africa.

            Françoise Guichard (CNRS)

 

17:10 Discussion

 

Wednesday 8th June –  AM ASTEX and composite transition cases

 

Wednesday Morning Plenary (Green Island Conf 2)

 

9:00      ASTEX and Composite cases : introduction. Stephan de Roode/Irina Sandu

9:20      ASTEX LES results.  Stephan de Roode (TU Delft)

9.50      Composite LES results. Irina Sandu (ECMWF)

 

10:20    Coffee (Green Island 2^nd Floor Balcony)

 

10:50    ASTEX and Composite SCM results.  Roel Neggers (KNMI)

11:50    Discussion of Lagrangian cases, where next, etc

 

12:20    Poster introductions

 

12:30 Lunch  and Posters (Ground Floor ‘The Street’ )

 

Wednesday 8^th June Posters:

 

• Overview of the ARPEGE/AROME 1D simulations run at Meteo-France within the EUCLIPSE project.

Isabelle Beau (Meteo-France)

• Using VOCALS to improve Stratocumulus Representation in the MetUM. Ian Boutle (Met Office)

• Simulating the stratocumulus-to-cumulus transition with a quasi-third-order closure

turbulence scheme.  Grant Firl (CSU)

• Simple climatology models of the stratocumulus to cumulus cloud transition.

Joao Teixeira (JPL)

• A climatological MISR-view on the statistics of boundary layer cloud top heights, globally and

in the stratocumulus to cumulus transition regions. 

Johannes Karlsson  (Stockholm University)

• Evaluating ECMWF global model cloud and precipitation with observed radar reflectivity:

How do we ensure a fair comparison? Richard Forbes (ECMWF)

• Results of CGILS, ASTEX, and Composite cases using JMA-GSM SCM.

Hideaki Kawai (JMA)

• Direct entrainment and detrainment statistics from a field of individually tracked trade

cumulus clouds. Philip Austin (UBC)

• Low cloud feedbacks in  ECHAM6 (in context of CGILS) Suvarchal Kumar (MPI)
• A higher-order turbulence closure model with prognostic PBL top. 

Anning Cheng (NASA Langley)

• An economical PDF-based turbulence closure model for cloud-resolving models and global climate models.

Steve Krueger  (Univ of Utah)

• Slow Manifolds and Multiple Equilibria in Stratocumulus- Capped Boundary Layers.

Chris Bretherton (Univ of Washington)

 

Wednesday 8th June – PM  Using COSP to evaluate clouds in global models

(Parallel session Green Island Conf 2)

 

14:00    ISCCP Simulator Developments: Application in Models and Evaluation with

Ground-based Data.  Stephen A. Klein (PCMDI/LLNL)

14:20    Multi-model analysis of clouds by using satellite simulators

A. Bodas-Salcedo (Met Office)

14:40    A glance at compensating errors between low-level cloud fraction and cloud optical

properties using CALIPSO and CloudSat satellite retrievals. Christine Nam (LMD)

15:00    Using COSP to evaluate clouds in the CanAM4 and CanESM2.

Philip Austin (UBC) for Jason N.S. Cole (Env Canada)

 

15:20    Coffee & Posters (Ground Floor ‘The Street’ )

 

15:50    An Assessment of Cloud Properties Simulated by NICAM Using ISCCP, CALIPSO

and CloudSat Satellite Simulators.  C. Kodama (JAMSTEC)

16:10    A process oriented description of oceanic clouds derived from A-train observation,

for climate model evaluation.  Helene Chepfer (IPSL)

16:30    Exploring the southern ocean short-wave anomaly using an across scales approach. 

Paul Field (Met Office)

16:50    MISR, ISCCP and MODIS simulators: current results and plans for AR5. 

Roger Marchand (Univ. of Washington)

 

17:10    Discussion

 

Wednesday 8th June – PM  GCSS Boundary Layer Cloud General Science Talks (Parallel session Conf 1)

 

14:00    Cloud-Aerosol Interactions in Boundary-Layer Clouds: Perspectives from Macrophysics

based on Multi-Variate Probability Distribution Functions with Dynamics. Leo Donner (GFDL)

14:20    MLM results of stratocumulus equilibrium.  Stephan de Roode (TU Delft)

14:40    Decoupling of the boundary layer preceding the breaking up of the stratocumulus cloud

deck in DALES.  Johan van der Dussen (TU Delft)

15:00    A climatology of boundary layer height using remote sensing observations

Joao P A Martins (Univ. of Lisbon)

 

15:20    Coffee & Posters (Ground Floor ‘The Street’ )

 

15:50    Assessing the role of dynamics-microphysics-radiation interactions in maintenance of

Arctic mixed-phase boundary layer clouds using ISDAC-based simulations.

Mikhail Ovchinnikov (PNNL)

16:10    Humidity structure in the subtropics from observations and reanalysis. Louise Nuijens (MPI)

16:30    Computations of the moist entropy for Stratocumulus and Cumulus from observations and

simulations. Pascal Marquet (Meteo-France)

16:50    Steady-State Large-Eddy Simulations to study the Stratocumulus to Shallow-Cumulus

Cloud Transition. Joao Teixeira and Daniel Chung (JPL)

 

17:10    Discussion

 

 

Thursday 9th June – AM  CGILS SCM/LES cloud feedback intercomparison case

 

Thursday Morning Plenary (Green Island Conf 1/2)

 

9:00      CGILS: Introduction and LES intercomparison results. Peter Blossey (UofW)

10:00    Sensitivity of the IPSL climate change low cloud feedback to physical

Parameterizations using the CGILS framework.  Florent Brient (LMD/IPSL)

10:20    Met Office SCM results from CGILS: a positive feedback driven by evaporatively driven

cloud-top entrainment?  Adrian Lock (Met Office)

 

10:40    Coffee (Green Island 2^nd Floor Balcony)

 

11:10    Steady-state solutions of clouds topped boundary layer in a perturbed climate

Sara Dal Gesso (KNMI)

11:30    A new (positive) cloud feedback. Bjorn Stevens (MPI)

11:50    What have we learnt from CGILS? Minghua Zhang (Stony Brook University)

12:20    Discussion of future CGILS activities

 

1:00 Lunch (no posters this day) ( Green Island 2^nd Floor Balcony)

 

Thursday 9th June – PM  Radiation intercomparison

 

Thursday Afternoon Plenary (Green Island Conf 1/2)

 

14:00    EUCLIPSE radiation intercomparison study for stratocumulus.  S. Dal Gesso (KNMI)

14:30    Discussion of radiation intercomparison

 

14:45    Update on GPCI and Sc-to-Cu CPT.  Joao Teixeira (JPL)

 

15:00    Coffee (Green Island 2^nd Floor Balcony)

 

15:30 CFMIP/EUCLIPSE Next Steps discussion

 

COSP Issues

CFMIP-2 data availability

Coordination of CFMIP-2 analysis?

 

16:30 CFMIP/GCSS meeting close

 

17:00    Joint CFMIP/EUCLIPSE/GCSS Committee meeting (by invitation) (Room C2/1+2)

 

Friday 10th June - AM EUCLIPSE summaries, practical issues and next steps

 

Friday Morning Plenary (Green Island Conf 1/2)

 

9:00      EUCLIPSE project information, Pier Siebesma

9:00      WP1 George Tselioudis

9:30      WP2 Sandrine Bony

 

10:00    Coffee (Green Island 2^nd Floor Balcony)

 

10:30    WP3 Stephan De Roode

11:00    WP4 Bjorn Stevens

11:30    General discussion

 

12:00 EUCLIPSE Meeting close

 

12:00 Lunch  ( Green Island 2^nd Floor Balcony)