AMFIC kick-off meeting Dimitris Balis & MariLiza Koukouli Laboratory of Atmospheric Physics Aristotle University of Thessaloniki

Air quality over Europe bremen.de/doas/so2_from_gome.htm bremen.de/doas/scia_data_browser.ht m

Air quality over Southern Europe Aerosol particles from fossil fuels and biomass burning, windblown Saharan dust, volcanic eruptions, sea salt, soot and smoke.

Air quality over China

Work package 3: Validation of aerosol properties, SO 2 and O 3 amounts Task 3.1: Validation of satellite-retrieved aerosol properties over a wide range of geolocations over Europe and China using ground-based results from the AERONET network. Task 3.2: Validation of satellite-retrieved aerosol properties over the city of Thessaloniki using a dedicated ground-based Brewer spectrophotometer. Task 3.3: Validation of satellite-retrieved SO 2 pollution fields over a wide range of geolocations over Europe and China where ground-based Brewer spectrophotometers exist. Task 3.4: Validation of the satellite-retrieved SO 2 pollution fields over the city of Thessaloniki using the coincident to the satellite overpass ground-based Brewer spectrophotometers measurements. Task 3.5: Validation of satellite-retrieved tropospheric O 3 slant columns over selected Chinese and European stations that include ozone sondes.

Work package 3: Validation of aerosol properties, SO 2 and O 3 amounts Task 3.1: Validation of satellite-retrieved aerosol properties over a wide range of geolocations over Europe and China using ground-based results from the AERONET network. Task 3.2: Validation of satellite-retrieved aerosol properties over the city of Thessaloniki using a dedicated ground-based Brewer spectrophotometer. Task 3.3: Validation of satellite-retrieved SO 2 pollution fields over a wide range of geolocations over Europe and China where ground-based Brewer spectrophotometers exist. Task 3.4: Validation of the satellite-retrieved SO 2 pollution fields over the city of Thessaloniki using the coincident to the satellite overpass ground-based Brewer spectrophotometers measurements. Task 3.5: Validation of satellite-retrieved tropospheric O 3 slant columns over selected Chinese and European stations that include ozone sondes.

Work package 3: Validation of aerosol properties, SO 2 and O 3 amounts Task 3.1: Validation of satellite-retrieved aerosol properties over a wide range of geolocations over Europe and China using ground-based results from the AERONET network. Task 3.2: Validation of satellite-retrieved aerosol properties over the city of Thessaloniki using a dedicated ground-based Brewer spectrophotometer. Task 3.3: Validation of satellite-retrieved SO 2 pollution fields over a wide range of geolocations over Europe and China where ground-based Brewer spectrophotometers exist. Task 3.4: Validation of the satellite-retrieved SO 2 pollution fields over the city of Thessaloniki using the coincident to the satellite overpass ground-based Brewer spectrophotometers measurements. Task 3.5: Validation of satellite-retrieved tropospheric O 3 slant columns over selected Chinese and European stations that include ozone sondes.

Work package 3: Validation of aerosol properties, SO 2 and O 3 amounts Task 3.1: Validation of satellite-retrieved aerosol properties over a wide range of geolocations over Europe and China using ground-based results from the AERONET network. Task 3.2: Validation of satellite-retrieved aerosol properties over the city of Thessaloniki using a dedicated ground-based Brewer spectrophotometer. Task 3.3: Validation of satellite-retrieved SO 2 pollution fields over a wide range of geolocations over Europe and China where ground-based Brewer spectrophotometers exist. Task 3.4: Validation of the satellite-retrieved SO 2 pollution fields over the city of Thessaloniki using the coincident to the satellite overpass ground-based Brewer spectrophotometers measurements. Task 3.5: Validation of satellite-retrieved tropospheric O 3 slant columns over selected Chinese and European stations that include ozone sondes.

Work package 3: Validation of aerosol properties, SO 2 and O 3 amounts Task 3.1: Validation of satellite-retrieved aerosol properties over a wide range of geolocations over Europe and China using ground-based results from the AERONET network. Task 3.2: Validation of satellite-retrieved aerosol properties over the city of Thessaloniki using a dedicated ground-based Brewer spectrophotometer. Task 3.3: Validation of satellite-retrieved SO 2 pollution fields over a wide range of geolocations over Europe and China where ground-based Brewer spectrophotometers exist. Task 3.4: Validation of the satellite-retrieved SO 2 pollution fields over the city of Thessaloniki using the coincident to the satellite overpass ground-based Brewer spectrophotometers measurements. Task 3.5: Validation of satellite-retrieved tropospheric O 3 slant columns over selected Chinese and European stations that include ozone sondes.

LAP validation background Balis, D., et al. (2007), Ten years of GOME/ERS2 total ozone data—The new GOME data processor (GDP) version 4: 2. Ground-based validation and comparisons with TOMS V7/V8, J. Geophys. Res., 112, D07307, doi: /2005JD Balis, D., et al. (2007), Validation of Ozone Monitoring Instrument total ozone column measurements using Brewer and Dobson spectrophotometer ground-based observations, J. Geophys. Res., in press.

Task 3.1: Validation of satellite-retrieved aerosol properties over a wide range of geolocations over Europe and China using ground-based results from the AERONET network.

Task 3.2: Validation of satellite-retrieved aerosol properties over the city of Thessaloniki using a dedicated ground-based Brewer spectrophotometer Koukouli et al., Comparisons of satellite derived aerosol optical depth over a variety of sites in the Southern Balkan region as an indicator of local air quality, Proc. SPIE Int. Soc. Opt. Eng. 6745, 67451V (2007)

Task 3.2: Validation of satellite-retrieved aerosol properties over the city of Thessaloniki using a dedicated ground-based Brewer spectrophotometer MODIS/Terra 09:25MODIS/Aqua 11:30 OMI 11:35

Task 3.3: Validation of satellite-retrieved SO 2 pollution fields over a wide range of geolocations over Europe and China where ground-based Brewer spectrophotometers exist.

Task 3.4: Validation of the satellite- retrieved SO 2 pollution fields over the city of Thessaloniki ata/Aura/OMI/OMSO2/index.html Collection 2

Task 3.5: Validation of satellite-retrieved tropospheric O 3 slant columns over selected Chinese and European stations that include ozone sondes.

First steps towards the validation process a.Selection of ground-stations both from the WOUDC & AERONET networks. b.Ground and satellite data availability c.Depiction criteria and general analysis set-up d.And this should lead us up to the Beijing Olympic Games of 2008!