Cost 728 - Overview
COST728 has four WGs on following topics:
WG 1 : Meteorological parametrization / applications
Leader: Dr Peter Clark, UK
Met Office
WG 2:
Integrated systems of MetM and CTM: strategy, interfaces and module unification
Leader: Dr Alexander Baklanov, DMI
WG 3:
Mesoscale models for air pollution and dispersion applications
Leader: Professor Millan M Millan, CEAM
WG 4: Development of evaluation tools
and methodologies
WG2: Integrated systems of MetM and CTM: strategy, interfaces and module unification
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Historically, air pollution forecasting and numerical
weather predictions (NWP) were developed separately. This was plausible
in the previous decades when the resolution of NWP models was too poor for
meso-scale air pollution forecasting. Due to modern NWP models approaching
meso- and city-scale resolution and using land-use databases and remote
sensing data with finer resolution, this situation is changing. As a result
the conventional concepts of meso- and urban-scale air pollution forecasting
need revision along the lines of integration of mesoscale meteorological
model (MetM) and chemical transport model (CTM).
The eventual integration strategy will not be focused
around any particular model – instead it would possibly be to consider an
open integrated system with fixed architecture (module interface structure)
and with a possibility of incorporating different MetMs/NWP models and CTMs.
Such a strategy would only be realised through jointly agreed specifications
of module structure for easy-to-use interfacing and integration.
Both off-line and on-line coupling of MetMs and CTMs will be considered
in WG2. Thus, a timely and innovative field of activity will be to assess
the interfaces between MeTMs and CTMs and the MetM-for-CTM models, and to
establish the basis for their harmonization and benchmarking. It will consider
methods for the aggregation of episodic results, model down-scaling as well
as nesting. The activity will also address the formulation of requirements
of mesoscale meteorological models suitable as input to air pollution models.
The overall aim of WG2 is to identify the requirements for the unification
of MetM and CTM modules and to propose recommendations for a European strategy
for integrated mesoscale modelling capability. Details are given in the
memorandum of understanding