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Regional air quality forecasting over Greece within PROMOTE

Dimitrios Melas(1), Anastasia Poupkou(1), Ioannis Kioutsioukis(2), Iraklis Lisaridis(1), Panayiotis Symeonidis(1) and Dimitrios Balis(1)

(1) Aristotle University of Thessaloniki, Box 149, 54124 Thessaloniki, Greece
(2) Democritus University of Thrace, P.O. Box 447, Xanthi, GR 67100, Greece


An air quality forecast system is set up in order to predict air pollutants levels over Greece. The forecast system consists of the prognostic meteorological model MM5 and the photochemical air quality model CAMx and runs operationally on a daily basis to issue 72-hours forecasts. The meteorological model is implemented for two nested grids. The coarse grid covering the greater part of the Balkan Region has a horizontal mesh width of 30 km. The fine grid is embedded within it with a horizontal spatial resolution of 10km. Both grids have the same vertical structure of 33 σ levels. MM5 simulations are initialized and develop lateral boundary conditions using GFS Global Forecast. The CAMx modeling domain is a part of the MM5 fine grid and covers Greece and a part of the neighboring Balkan countries with a horizontal grid resolution of 10 km. There are 5 vertical layers extending up to approximately 2.5 km above ground. The emission data used are hourly values of biogenic NMVOCs and anthropogenic NOx, NMVOCs and CO emissions. The biogenic emissions were calculated following the methodology of the EMEP/CORINAIR emission inventory guidebook. The anthropogenic emission fields were estimated using data of official national emission inventories (e.g. the transport sector emission inventory for Greece) and of international emission databases (e.g. EMEP, CORINAIR). The boundary concentrations of the chemical species are based on predictions of the European scale Chemistry Transport Model EURAD-CTM. The Carbon Bond Mechanism (CB-IV) is employed for solving chemical kinetics. The air quality forecasts are used and evaluated by Greek environmental authorities.


Workshop presentation

Full paper

Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry