Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 633, Issue -, Pages 317-328Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2018.03.150
Keywords
Saharan dust; WRF-Chem; HTAP; Air quality; Eastern Mediterranean
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Funding
- NASA (National Aeronautics and Space Administration) [NNG15HZ38C]
- TUBITAK (Scientific and Technological Research Council of Turkey) [111G037]
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An online-coupled regional Weather Research and Forecasting model with chemistry (WRF-Chem) is utilized incorporating 0.1 degrees x 0.1 degrees spatial resolution HTAP (Hemispheric Transport of Air Pollution) anthropogenic emissions to investigate the spatial and temporal distribution of a Saharan dust outbreak, which contributed to high levels (>50 mu g/m(3)) of daily PM10 concentrations over Turkey in April 2008. Aerosol optical depth and cloud optical thickness retrievals from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor on board of Aqua satellite are used to better analyze the synoptic conditions that generated the dust outbreak in April 2008. A Sharav low pressure system, which transports the dust from Saharan source region over Turkey along the cold front, tends to move faster in WRF-Chem simulations than observed. This causes the predicted dust event to arrive earlier than observed leading to an overestimation of surface PM10 concentrations in WRF-Chem simulation at the beginning of the event. (c) 2017 The Authors. Published by Elsevier B.V.
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