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Working Group 2: Integrated systems of MetM and CTM/ADM: strategy, interfaces and module unification.
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Working Group 2: Integrated systems of MetM and CTM/ADM: strategy, interfaces and module unification
The overall aim of WG2 will be to identify the requirements for the unification of MetM and CTM/ADM modules and to propose recommendations for a European strategy for integrated mesoscale modelling capability.
WG2 activities will include:
NWP models are not primarily developed for CTM/ADMs and there is no tradition for strong co-operation between the groups for meso/local-scale
the conventional concepts of meso- and urban-scale AQ forecasting need revision along the lines of integration of MetM and CTM
US example (The models 3, WRF-Chem)
A number of European models …
A universal modelling system (like ECMWF in EU or WRF-Chem in US) ???
an open integrated system with fixed architecture (module interface structure)
European mesoscale MetM/NWP communities:
Meteorology is a main source of uncertainty in APMs => needs for meso-scale MetM / NWP model improvements
Complex & combined effects of meteo- and pollution components (e.g., Paris, Summer 2003)
Effects of pollutants/aerosols on meteo&climate (precipitation, thunderstorms, etc)
Three main stones for Atmospheric Environment modelling:
Meteorology / ABL,
Chemistry, =>Integrated Approach
Aerosol/pollutant dynamics(“chemical weather forecasting”)
Effects and Feedbacks
Differences from COST 728:
The PRISM project develops:
PRISM also provides guidelines for good coding practices.
Detailed information can be found in the PRISM System Specifications Handbook.
[PRISM website: http://prism.enes.org/]
Modellering i byområder er aktuel til de fleste formål, og det er vigtigt at inddrage effekter heraf i NWP og forureningsmodellerne.
Ligeledes er aerosoldannelse og -dynamik et fokusområde med betydning for helbred og sigtbarhed samt effekter på meteorologi og klima.
Urban Scale NWP modeling needs:
15 km ECMWF/HIRLAM,GME
~1-5 km LM, HIRLAM,
> 0.5 km MM5, RAMS, LM
~ 1-10 m CFD, LES, box models
Current regulatory (dash line) and realised in FUMAPEX (solid line) ways for systems of forecasting of urban meteorology for UAQUIFS:s.
Scheme of the suggested improvements of meteorological forecasts (NWP) in urban areas and interfaces to urban air pollution (UAP) and population exposure (PE) models
including 4 levels of complexity of the NWP 'urbanization'
ECMWF global model
Online versus offline averaged concentration over half of the domain,
Ó Georg Grell
Schematic Illustration of the Chemistry-Aerosol-Cloud (CAC) System being developed at DMI
The following aerosol physical processes are solved
1. Nuclei mode (i):
d M(i)/dt = N(i) + G(i) + C(i->i)
2. Accumulation mode (j):
d M(k,j)/dt = G(j) - C(j->j) + C(i->j) + E(j)
3. Mechanical generation mode (k): emission, condensation growth and coagulation
1. Sectional numerical approach,
2. Analytical solutions using the modal approach.
Gross and Baklanov (2004)
Solid lines: particle number concentrations
Dashed lines: mass concentrations
Determination of source location by inverse (adjoint) model calculation using DERMA based on measured data(Sørensen and Baklanov, 2004)
Bio-terror: Hypothetical release of 100 g Anthrax spores
calculated by DERMA
Sensitivity function based on inverse modelling by DERMA