GABLS4 WORKSHOP

Toulouse, Météo-France

12- 14 September 2018

For those following remotely, time in France is UTC+2h

Wednesday 12 September:

13:00 - 13:30: Registration

13:30 - 13:40: Welcome from Philippe Dandin

13:40 - 13:45: Practical aspects

Chair: Gunilla Svensson

13:45 -14:20: History of GABLS intercomparison: B. Holtslag

14:20 – 15:20: Single Column Model intercomparison : E. Bazile

15:20 – 16:20: Large-Eddy Simulations intercomparison : F. Couvreux

16:20 – 16:50: Coffee Break

16:50 – 18:15 : Discussions on articles: Eric and Fleur

18:30 – 20:00: Ice Breaker

Thursday 13 September:

Chair: Bert Holtslag

9:00 – 9:20: Modeling stable boundary layers using the Explicit Algebraic Reynolds-stress model: Zeli Velibor

9:20 – 9:40: A Comprehensive yet Simple Study Case for the Diurnal Cycle: A. Van Hooft

9:40- 10:00: Transitions in the wintertime near-surface inversion at Dome C: P. Baas

10:00 – 10:20: High resolution simulations of the observed Antarctic boundary layer: S. Van der Linden

10:20 – 10:50: Coffee Break

Chair: Christophe Genthon

10:50 – 11:10: Coupling between radiative flux divergence and turbulence near the surface: G.J Steeneveld

11:10 – 11:30: Clear-Sky Cooling during Polar Night over the Sea Ice in the Arctic: The Role of Leads and Wind Speed: D. Chechin

11:30 – 11:50: Introducing an improved multilayer parametrization of lying snow into operational weather and climate modelling: J Edwards

11:50 - Discussions

12:00 – 13:30: Lunch break

Chair: B. Van De Wiel

13-30 – 14:00: Large-eddy simulations in GABSL4: The role of the land-surface and radiation: J. Edwards

14:00 – 14:30: UConn LES GABLS4 results and perspectives on modeling of stable boundary layers: G. Matheou

14:30 – 15:00: Large-eddy simulation of very stable boundary layers: Turbulence structure: M. Chinita

15:00 – 15:30: Stage-3 10h : sensitivity to resolution and turbulent structures: Q. Rodier

15:30 – 16:00: Coffee Break

Chair: J. Edwards

16:00 – 16:30 : Sensitivity experiments with the LMDZ GCM on the GABLS4 exercise: E. Vignon

16:30 – 17:00 : On the use of the mixed-phase potential temperature based on the Third Law to understand atmospheric processes: P. Marquet

17:00 –17:15 : Demistify: an LES and NWP fog modelling intercomparison: G.-J. Steeneveld

20:00 Social Dinner : Chez Monsieur 40, rue des Filatiers 

Friday 14 September:

Chair: G.-J. Steeneveld

9:00 – 9:20 : What about water vapor and condensation at Dome C: C. Genthon

9:20-9:40 : Genesis of Diamond Dust, Ice Fog and Thick Cloud Episodes observed and modelled above Dome C, Antarctica: P. Ricaud

9:40 – 10:00 Antarctic Boundary Layers : challenges for atmospheric models beyond Dome C: E. Vignon

10:00 – 10:20 : Larcform2: Present some ideas about a new Larcform case, an Arctic airmass transformation case: G. Svensson

10-20 – 10:50: Coffee Break

10:50 -11:30: Closing GABLS4: Eric & Fleur

11:30 –12:15: Future GABLS studies: Gunilla & Bert

12:15 – 13:30: Lunch break

List of participants:

B Holtslag Wageningen University

G Matheou University of Connecticut

G-J Steeneveld Wageningen University

M-P Lefebvre Météo-France/LMD

O Traullé Météo-France

D Chechin AWI

A Van Hooft TU Delft

G Svensson Stockholm University

P Baas TU Delft

C Genthon LMD

E Vignon EPFL-LTE

S Van der Linden TU Delft

V Zeli KTH, Stockholm

O Audouin Météo-France/CNRM

J Edwards Met Office

Q Rodier Météo-France/CNRM

B Van De Wiel TU Delft

M Chinita Faculdade de Ciências da Universidade de Lisboa

E Bazile Météo-France/CNRM

F Couvreux Météo-France/CNRM

P Le Moigne Météo-France/CNRM

P. Ricaud Météo-France/CNRM

J. Izett Department of Geoscience and Remote Sensing, TU Deft

F. Bouyssel Météo-France/CNRM

P. Marquet Météo-France/CNRM

T. Bergot Météo-France/CNRM

C. Lac Météo-France/CNRM

A. Paci Météo-France/CNRM

Remotely:

Chiel van Heerwaarden Wageningen University

M. Ek NCAR

W Zheng NOAA/NCEP/EMC

W Angevine NOAA

A Zadra CMC

I Sandu ECMWF

D Veron University of Delaware