Status of SATURN Activities in 1998
The table below links the activities to Principal Investigators and the
SATURN Main Groups.
Subsequently, the individual activities are listed in numerical order.
Where available, graphics are provided.
All information in the activities is contained in a compressed
ZIP file (ca. 8MB).
NOTE: The graphics and the compressed zip file are password-protected.
Send mail to liana@aix.meng.auth.gr,
to receive a personal password.
Overview
List of Actions
-
Development of the CFD* model (CHENSI) and study
of convection within streets.
-
Development of a CFD model of flows within streets
with development of improved non-isotropic turbulence models.
-
Development of a model to account for the turbulence
and dispersion induced by vehicles, and implementation into a CFD code.
(with the graphics)
-
Development of the microscale model MIMO and
interfacing of MIMO and the general-purpose CFD code CFX-TASCFlow with
the urban scale model within ZEUS.
(with the graphics)
-
Development of modelling tools to describe air
pollution from traffic in Copenhagen in urban streets and background.
-
Development of fast numerical methods for obstacle
resolving models.
-
Development of a model for street canyon intersections
using the general-purpose engineering CFD software package StarCD.
-
Improvement of regulatory type models by consideration
of such processes as the impact of anthropogenic heat flux and the interaction
with the upstream boundary layer structure.
-
French communal model system SUBMESO based on
the ARPS model and the MOCA chemistry; original urban soil, terrain and
turbulence sub-models especially designed for sub-mesoscale simulations.
-
Development and improvement of a 3D mesoscale
model, introduction of variable grids, and subgrid turbulence parametrizations
adapted for urban areas.
-
ZEUS model system based on the EZM system;
coupled treatment of wind flow and pollutant dispersion (either full 3-D
or, for smog warning purposes, multi-layer approach).
(with the graphics)
-
Development of a boundary layer model coupled
with a mesoscale model.
-
Development of the canopy model MITRAS in connection
with the mesoscale model METRAS.
-
Diffusion and subgrid scale models in GRAMM.
-
Non-local turbulence schemes and parameterisations
of point source schemes in EZM (MEMO/MARS).
-
Subgrid scale chemistry and dispersion modelling
with emphasis on the point source representation in grid simulations.
-
Use of models developed for different distance
scales (from the microscale situation within a street to city scale and
beyond) to indicate the relative contributions to pollutant concentrations
from different sources in different spatial zones.
-
“Top-down / bottom-up” model cascade strategy:
Boundary conditions for each scale to be derived from the next higher scale
(top-down), pollutant fluxes transduced to the next higher scale (bottom-up);
advanced turbulence models including non-local schemes.
(with the graphics)
-
Development of turbulence parameterisations
for the urban canopy model MITRAS.
-
Development of chemical transformation mechanisms
to be used in models of urban areas and urban plumes.
-
Particle dynamics and transformations, especially
in the early stages.
-
Modelling fine particle evolution.
-
Modelling particles and nitrogen oxides in
urban environments and analysis of air quality episodes.
(with the graphics)
-
Condensation and heterogeneous chemistry in
ZEUS.
(with the graphics)
-
Inclusion of aerosol, cloud and radiation modules
in a photochemical model and application to Milano and Berlin.
-
-
-
Development of a microscale gas phase chemistry
mechanism.
(with the graphics)
-
Development of formalised procedures for validating
regulatory type urban air pollution models.
-
Development and application of evaluation procedures
for mesoscale and microscale models.
-
Formulation of validation criteria for urban
scale models.
-
Development of an adequate evaluation strategy
for microscale dispersion models, focus on obstacle resolving models.
-
Validation concept for building-resolving models,
particularly at street canyon intersections, using wind tunnel and CFD.
-
Specifications for pollutant concentrations
measured in the field.
-
Specifications for heat flux measurements.
-
Specifications for data on atmospheric stability.
(with the graphics)
-
Mapping roughness length in urban and suburban
areas.
-
Specifications for emission inventories as
input to air pollution models.
-
Barcelona emission inventory.
-
Lisbon emission inventory.
(with the graphics)
-
Milan and Lombardia emission inventories.
(with the graphics)
-
St. Petersburg emission inventory.
-
Oslo emission inventory.
-
Athens emission inventory.
(with the graphics)
-
Antwerp-Brussels-Gent emission inventory.
(with the graphics)
-
Graz emission inventory.
-
Model validation exercise based on Graz data.
-
Model validation exercise based on Lisbon data.
(with the graphics)
-
Model validation exercise based on Milan and
Lombardia data.
(with the graphics)
-
Model validation exercise based on St. Petersburg
data.
-
Model intercomparison for idealised situations.
-
Model validation exercise based on Oslo data.
-
Model validation exercise based on Athens data.
(with the graphics)
-
Model validation exercise based on Antwerp-Brussels-Gent
data
-
Inter-comparison of roadside air quality models.
-
Field experiments in support of local scale
air pollution model development.
(with the graphics)
-
Urban and local scale measurements of particles
and VOCs.
-
Measurements of pollutant concentrations for
characterising the air mass above the city.
-
Street canyon measurements and model computations.
(with the graphics)
-
Emission factor estimates by field measurements;
assessment of the contri-bution of various sources to the VOC distribution
and analysis of the photochemical VOC oxidation.
(with the graphics)
-
Development and improvement of LIDAR in situ
measurements and associated laboratory activities.
-
Field experiments in support of urban scale
air pollution model development.
-
Graz campaign (Central Europe)‡.
-
St. Petersburg campaign (Northern/Eastern Europe)‡.
-
Lisbon campaign (Western Europe)
(with the graphics)
-
Milano campaign (Southern Europe)‡.
(with the graphics)
-
Generation of wind tunnel datasets of flow
and tracer concentrations at street canyon intersections.
-
Generation of data from wind tunnel experiments
suitable to support model evaluation.
-
Collection of data on the composition and size
of particles in Budapest; this data will form the basis for source apportionment
using receptor models.
-
Fundamental aerosol studies: determination
of particle dynamics in the early stages of emission and creation, laboratory
and field measurements on aerosol transport and formation and investigation
of the aerosol restructuring process; generation of useful data for para-meterising
particle formation and deposition.
-
Atmospheric physico-chemical processes in urban
environments.
(with the graphics)
-
Development of a warning system for high photosmog
pollution and exposure assessment using a time series model.
(with the graphics)
-
Information system based on a combination of
concentration measurements and dispersion calculations.
-
Development of a management support system
for the investigation and forecasting of urban air pollution levels based
on novel model approaches and up-to-date meteorological and air quality
measurements.
(with the graphics)
-
Derivation of initial and monitoring data for
model simulations from the Internet and RDS/TMS networks.
-
-
-
Development of an integrated air quality management
system for coastal urban areas.
(with the graphics)
-
Integration of modelling advances in an improved
version of an air quality management system.
-
Integrated modelling system for air quality
policy analyses.
(with the graphics)
-
Development of an integrated toolbox of methods
for estimating emissions from small sources and for calculating microscale
dispersion near these sources.
-
Integration of models for emissions, dispersion,
chemical reactions and deposition to a versatile surveillance system.
-
Air pollution episode forecasting based on
cluster analysis.
(with the graphics)
-
Development of an integrated and operational
environmental forecasting model in metropoli-tan areas.
-
Time series analysis to assess the health effects
of meteorological and air pollution factors.
(with the graphics)
-
Development of an efficient method for exposure
pattern calculations.
-
Assessment of personal and population exposure
to urban air pollution, especially particulates and diesel emissions.
-
Development of a population exposure model and its testing against experimental
results.
* Computational Fluid Dynamics