Intercomparison between MODIS 3km aerosol optical depth product and ground PM10 measurements over Athens, Greece

Adrianos Retalis; Dimitris Paronis; Dimitris Katsanos

doi:10.1117/12.2194517

Abstract

Satellite imagery has been considered as an add-on tool to air quality and pollution monitoring due to its extensive spatial and temporal coverage of the Earth’s surface and atmosphere. The most widely used satellite parameter is the Aerosol Optical Depth (AOD). AOD has been extensively used to evaluate and enhance the satellite-based estimates of ground-level particulate matter (PM) as well as to reduce uncertainties in the studies of global health applications. This study attempts to identify correlations between AOD values retrieved from the new MODIS/Aqua high resolution 3km aerosol product and ground-based PM₁₀ measurements obtained within the period 2002-2012 in the area of Athens, Greece. In parallel, it attempts to assess the applicability of the so called mixed effects models which take into account both the spatial and temporal variability of the underlying uncertainties in the estimation of PM₁₀ levels from MODIS AOD measurements. The ground PM₁₀ recordings were acquired from the archive of the in-situ operational air quality monitoring network of Athens. Results indicated that the new AOD product of 3km estimated better PM₁₀ values against the AOD 10km product. Thus, the new 3km product may be better at characterizing aerosol distributions on local scale although bias was observed.

Citation Download Citation

Adrianos Retalis, Adrianos Retalis, Dimitris Paronis, Dimitris Paronis, Dimitris Katsanos, Dimitris Katsanos, } "Intercomparison between MODIS 3km aerosol optical depth product and ground PM₁₀ measurements over Athens, Greece", Proc. SPIE 9640, Remote Sensing of Clouds and the Atmosphere XX, 96400S (16 October 2015); doi: 10.1117/12.2194517; https://doi.org/10.1117/12.2194517

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