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GLOMAP

Global Model of Aerosol Processes

Marine Boundary Layer Aerosol

To evaluate our understanding of marine boundary layer (MBL) aerosol we use a statistical synthesis of observations from five different field campaigns.

The figure below shows a comparison of model and observed aerosol size distributions. The model predicts a bi-modal size distribution that agrees well with the observations as an average over all regions. However, at regional scales there are large differences between the model and observations. Modelled Aitken and accumulation mode particles are 10–30% smaller than observed.

Both model and observations are filtered to include only the remote MBL (air masses greater than 120 h since last continental contact).

Read the paper here

MBL aerosol size dist

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