A063-0001
Aerosol-cloud interaction events over the high Arctic

Wednesday, 9 December 2020
Poster
Keyvan Ranjbar1, Norman T. O'Neill2, Liviu Ivanescu2, Housseyni Sankare3 and Jean-Pierre Blanchet4, (1)University of Sherbrooke, Géomatique Appliquée, Sherbrooke, Canada, (2)University of Sherbrooke, Sherbrooke, QC, Canada, (3)University of Quebec at Montreal UQAM, Montreal, QC, Canada, (4)University of Quebec at Montreal UQAM, Earth and Atmospheric Sciences, Montreal, QC, Canada
Abstract:
The A-CCP (Aerosol-Cloud, Convection, Precipitation) NASA study and the three supporting missions of the Canadian Space Agency are indicative of the importance associated with the impacts of aerosol-cloud dynamics. These impacts are even more critical in the climate change context of Arctic magnification. We will present an overview of remotely sensed aerosol-cloud events over the high Arctic using ground- and satellite-based, passive and active sensors. These will include Polar summer and Polar winter examples of aerosol cloud interaction induced by smoke, dust, and volcanic sulfate aerosols acquired using a combination of sunphotometry, starphotometry, moonphotometry and lidar / radar observations from our PEARL observatory in Eureka, Nunavut Canada supported and complemented by CALIOP / Aeolus / CloudSat vertical profiles and MODIS / TROPOMI imagery products in the greater high-Arctic region. Preliminary statistics related to the Twomey indirect effect will also be presented.
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