Journal Title
Title of Journal: Environ Fluid Mech
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Abbravation: Environmental Fluid Mechanics
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Publisher
Springer Netherlands
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Authors: Marina Astitha George Kallos
Publish Date: 2008/10/28
Volume: 9, Issue: 1, Pages: 3-22
Abstract
The atmospheric chemical composition is affected by the interaction mechanisms among gases and particulate matter through a wide range of chemical reactions that can occur with the aid of particulate matter eg particles act as reacting or absorbing surfaces or be influenced by the presence of particulate matter in the atmosphere photochemical reactions Physical and chemical processes are also bonded in an interactive way that often leads to the influence of the radiation budget cloud physics and the warming or cooling of the lower atmospheric levels The EuroMediterranean region is a keysensitive area due to the unique climatic and air quality characteristics associated with the regional climatic patterns geomorphology land and water contrast and coexistence of pollutants from different origin Focusing on this region the gasaerosol interactions are studied using stateoftheart atmospheric and chemical transport modeling tools following the necessary development in the chemical transport model CAMx Sensitivity and largescale simulations have shown significant responses of the modeling system to the inclusion of natural species emissions the direct shading effect of dust particles on photochemical processes and the formation of new types of aerosols through heterogeneous uptake of gases on dust particles Including such interactions in the chemical transport model often led to the improvement of the model performance compared with available measurements in the region
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