DETERMINATION OF THE SOURCES AND THE PHYSICOCHEMICAL PROPERTIES OF FINE AND ULTRAFINE AEROSOL PARTICLES THAT AFFECT THE REGIONAL CLIMATE OF GREECE

Abstract: 

Aerosols are ubiquitous in the atmosphere and influence human health, air quality and climate. They are thought to exert a net cooling on climate and partly mitigate the warming from greenhouse gases. Owing to their short atmospheric lifetime, aerosols present significant spatial and temporal heterogeneity that is challenging to simulate in global and regional climate models. The large uncertainty in predicting their effects on climate requires substantial and intensive research to characterize how the physicochemical properties of atmospheric particles change during their lifetime. Despite the significant amount of work for identifying these properties, significant data gaps remain in key climate-sensitive regions such as the Eastern Mediterranean.

The objective of the proposed project is to identify the sources and to elucidate the processes by which aerosol particles and their precursors emitted in and transported to the Eastern Mediterranean affect local air quality and climate.

We will conduct concurrent measurements of the size distribution of the particles, their composition, their hygroscopicity and ability to act as cloud condensation nuclei, as well as their optical properties in urban and remote environments. Such coordinated large-scale measurements will be performed for the first time in the region, allowing us to quantify the contribution of the various particle sources, and providing insights on the significance of aerosols for the local climate.

The measurements will be utilized to evaluate the performance of certain chemical transport models in the region. These models will then be used to quantify the importance of the various source regions and processes, the contributions of primary and secondary particulate matter, and the contribution of anthropogenic and biogenic sources.

The output of the models will be compared with satellite observations, thereby providing a first link between systematic ground measurements and remote sensing observations.

Project info

Acronym:
SO_PHY_PRO_CLIM_GR
Coordinating Institution:
University of the Aegean
Scientific Coordinator:
Pilinis Christodoulos
Research Team 2 Leader:
Biskos George
Research Team 3 Leader:
Mihalopoulos Nikolaos
Research Team 4 Leader:
Pandis Spyros

Stats

I.D.:
1382
Mis:
376735
Duration (months):
43
Diavgeia:
ΑΔΑ: Β4959-Τ25

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