five weather situations have been selected as the basis for
the validation experiments.
Scenario A1: Scenario analysis for studying the influence of
measures on the regional ozone concentration: Actions of B1 adapted to Athens.
Scenario A2: Scenario analysis for studying the influence of the
sea breeze phenomenon
on the regional ozone concentration in Athens: The ECOSIM server will be fed
with historical water temperature data, and atmospheric parameters
(wind speed, air temperature and relative humidity) provided by the
atmospheric model. The interface formulation between the atmospheric
and coastal water models will be chosen through a number of sensitivity
experiments. Simulations will be carried out with the coupled model to
study the influence of the sea breeze on the regional ozone concentration.
The focus for the collection of data on pollutants in Greece is a
division of the Ministry of the Environment, City Planning and Public Works -
PERPA. It is currently undergoing modernization of its environmental data
through implementation of a workstation and
PC network linked over
the HELLASPAC network. The focus for initial implementation has been the
main offices of PERPA in Athens together with local sub-networks.
It provides access to a wide variety of data and monitoring networks as
historical data on SO2, PM10 and TSP over the period 1974-1982 from up to
10 monitoring stations;
a current network comprising 8 automatic and 2 semi-automatic measuring
stations providing data on SO2, NOX, ozone, CO and PM10.
Scenario A3: Scenario analysis for studying the interplay
between pollution in ground, surface and coastal water:
The available data in Athens on landfill effluents (leachate) will
be loaded on the ECOSIM server. as input to the ground water model,
to quantify the associated flux of water contaminants. Possible
interactions between ground, surface and coastal water domains will
For the purposes of scenario A3, a limited database of measurements of the
ground water quality exists. Measurements of leachates at the landfill
sites are made every few months.