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Hannele's research since Hyytiälä

Hannele's research since Hyytiälä. Now working at University of Kuopio, Finland Global modelling of (marine) aerosols with GLOMAP (Univ. Leeds) CCN seasonality in the Southern Ocean geoengineering: controlled sea spray fluxes to increase albedo of low level marine clouds

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Hannele's research since Hyytiälä

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  1. Hannele's research since Hyytiälä • Now working at University of Kuopio, Finland • Global modelling of (marine) aerosols with GLOMAP (Univ. Leeds) • CCN seasonality in the Southern Ocean • geoengineering: controlled sea spray fluxes to increase albedo of low level marine clouds • changes in marine CCN sources due to climate change (wind speed, DMS) • Hoping to move to the continents (and SOA business) soon…

  2. Marine CCN sources in Southern Ocean • Comparison to measurements • seasonal trend captured well • seasonality not predicted if DMS emissions neglected • CCN increase due to DMS from November to April (max 48% in Jan); no winter effect • South of 45o S • DMS effect only from December to February • seasonality also in run with DMS emissions • strong winds -> sea spray source • oxidation of LRT SO2 -> non-linearity of FT nucleation • Over 94% of DMS effect via FT nucleation (the rest via growth of sea spray to CCN size)

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