Aerosol and Tropospheric Ozone Direct Radiative Impacts

Impacts radiatifs directs des aérosols et de l'ozone troposphérique

Mallet, Marc ; Nabat, Pierre ; di Sarra, Alcide Giorgio ; Solmon, Fabien ; Gutiérrez, Claudia ; Mailler, Sylvain ; Menut, Laurent ; Kaskaoutis, Dimitris ; Rowlinson, Matthew ; Rap, Alexandru ; Dulac, François

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This chapter describes the direct radiative forcing (DRF) over the Mediterranean region exerted by aerosols and tropospheric ozone. Recent results on the regional aerosol DRF at the surface and at the top of the atmosphere (TOA) are presented, together with trends in surface solar radiation. Absorption by aerosol particles within the troposphere affects heating rates and atmospheric stability, therefore playing a key role in the regional radiative impact of aerosols. In addition, the impact of aerosols on photochemistry and solar energy production over the Mediterranean region is also discussed with a focus on recent advances on the impact of the aerosol dimming on photovoltaic (PV) panels. Finally, the last section describes the regional radiative forcing (RF) of tropospheric ozone and drivers of its uncertainty.</p> CY - Cham

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