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The UTCS Priority Project
(Towards Unified Turbulence - Shallow Convection Scheme)
Agenda for Project Parallel Sessions
(Tu, Sep 18, 16:30-18:30 and Fr, Sep 21, 11:00-13:00)
COSMO General Meeting
Athens, Greece, 18-21 September 2007
PP Session, Tuesday, 18 September 2007, 16:30-18:30
A u th o rs /S p e a k e rs
T itle
T im e
R e m a rk s
D m itrii M ironov
Introdu ction, brief ov erview o f the project results obtained to date
16:30 – 16:50
E uripides A v goustoglou and
Y anns P apageo rgiou
E valuation of the S tatistical C loud S chem e of C O S M O M odel over
G reece
16:50 – 17:20
S ee abstract
B alázs S intai, presented b y
P irm in K aufm ann
T K E as a M easure o f T urbulen ce
17:20 – 17:50
S ee abstract
D m itrii M ironov
O verview o f the project activities: scientific and technical problem s
encountered, personn el, com m unication and m an agem ent issues, etc.
17:50 – 18:10
A ll participants
D iscussion
18:10 – 18:30
T itle
PP Session, Tuesday, 18 September 2007, 11:00-13:00
S p e a k e rs
T itle /T o p ic s
T im e
D m itrii M ironov
D etailed plan of the p roject activities for the com ing C O S M O year;
m ilestones; scientific, personnel, com m unication and m anagem ent issues
11:00 – 11:40
A ll participants
D iscussion: “difficult” and unclear scientific and technical issues, corrections
to the project plan, personnel (in particular, com m itm ent of the project
participants to perfo rm the project tasks), com m unication and m an agem ent,
11:40 – 13:00
T itle/T opic
T itle/T opic
R e m a rk s
Euripides Avgoustoglou and Yanns Papageorgiou
We revisit the implementation of the sub-grid scale statistical cloud scheme into
the COSMO-model. The sensitivity of the COSMO-model performance is tested
to variations of the disposable parameters of the cloud scheme, to changes in the
horizontal mesh-size (7 km versus 12 km), and to the inclusion of the cloud ice
scheme in combination with the statistical cloud scheme. The focus has been on
the low-level clouds over Greece. It is found, among other things, that the
inclusion of cloud ice scheme has a significant effect on results.
Balázs Sintai (presented by Pirmin Kaufmann)
The TKE of the COSMO Model can be used as a measure of turbulence for
dispersion modelling. This is already done in the current version of the LDPM of
DWD. There are however cases, when the TKE produced by the COSMO Model
is unrealistically structured. These unrealistic TKE values then lead to unrealistic
turbulence parameters for the calculation of the dispersion. In addition, a postdiagnose of the TKE from the meteorological fields can yield to substantially
different values than the original prognostic values. The diagnostic TKE values
may differ to a much lesser degree, in case the prognostic TKE is turned off in the
COSMO Model.
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