Tentative Agenda of the Workshop on:
Eddy-Diffusivity/Mass Flux parameterizations
of the Clear and Cloudy Boundary Layer
Technical University Delft
June 14-15 2011
Tuesday, June 14
9:00 – 9:15 Coffee
9:15-9:30 Opening and welcome Pier Siebesma / Stephan de Roode
Part 1: Overview of Implementations of EDMF-type schemes in operational models
9:30 - 10:00 EDMF developments in ECMWF model:
Dry BL, Scu, Dual Mass Flux optimized for ECMWF
Martin Köhler (DWD)
10:00-10:15 Discussion
10:15 - 10:45 EDMF developments at KNMI:
Dual Mass Flux extensions, TKE extensions.
Roel Neggers (KNMI)
10:45 - 11:00 Discussion
11:00 – 11:30 Coffee Break
11:30 – 12:00 EDMF developments at Meteo France for ARPEGE
Yves Bouteloup (Meteo France)
12:00 – 12:15 Discussion
12:15 – 12:45 EDMF developments at LMD
Catherine Rio (LMD)
12:45 – 13:00 Discussion
13:00-14:15 Lunch Break
14:15 – 14:45 EDMF developments at JPL
“Updraft Multiple Mass-Flux Approach”
Joao Teixeira (JPL)
14:45 – 15:00 Discussion
15:00 – 15:30 EDMF developments in WRF
Wayne Angevine (NOAA)
15:30 – 15:45 Discussion
15:30- 16:00 Coffee and Tea
Part 2: Specific Issues of EDMF type schemes
16:00 – 16:30 EDMF and TKE closure in the dry PBL
Marcin Witek (JPL)
16:30 – 17:00 TKE vs K-profile method for EDMF in the cloudy boundary layer
Geert Lenderink (KNMI)
17:00 – 17:30 Sensitivity test in AROME using different cloud schemes
Sebastien Riette (Meteo France)
Evening; Dinner in Delft
Wednesday, June 15
9:00 – 9:30 Fleur Couvreux (Meteo France)
“A trace based conditional sampling in LES to improve EDMF schemes”
9:30 – 10:00 Wim de Rooy (KNMI)
“Entrainment and detrainment in shallow cumulus convection”
10:00 – 10:30 Catherine Rio (LMD)
“Transition from shallow to deep convection: Interaction between plume
model and deep convection scheme in LMD”
10:30 – 11: 00 Coffee Break
11:00 – 11:30 Kay Suselj (JPL)
“EDMF and shallow convection: A Stochastic Approach”
11:30 – 12:00 Stephan de Roode (TU Delft)
“Budget analysis of the vertical velocity equation in cloudy updrafts
12:00 – 12:30 Jerome Schalkwijk/ Pier Siebesma
“Evaluation of EDMF assumptions using Cabauw observational data
12:30 – 14:00 Lunch
Part 3: Discussion, Reporting, Future Joint activities
14:00- 14:15 Axel Seifert (DWD)
“New Activities of the Hans Ertel Center Group at MPI (10 minutes)
Issues for discussion:
· Do we want to report in some journal on the progress of the EDMF activities
· EDMF issues
o Initialization updraft (which height, dynamical effects, inclusion cold pools etc)
o updraft model (entr/detr/ vertical velocity, number of updrafts)
o Relative Roles of ED and MF (especially during transitions, double counting for instance for top entrainment)
o Momentum Transport
o TKE vs K-profile
o EDMF across the various resolutions (when do stochastic features become relevant)
o Microphysics?
o Transition to Deep Convection
o Other……?
· Future Joint activities:
o Specific Analyses for EDMF schemes for transition cases (ASTEX, Composite, other, testbed?)
o Other dedicated experiments (equilibrium states, convergence with vertical resolution, …….)
· Optional: Excursion to Virtual Reality Lab (VRL) to experience 3D-LES