Fog that occurs over the ocean and in coastal regions has significant adverse impacts on ground and air transportation as well as the propagation of electromagnetic waves in the atmosphere. Despite significant advances in numerical and weather prediction models in recent years, marine fog remains very difficult to accurately predict due to the complex interactions of thermodynamic, radiative, and microphysical processes that affect fog formation and the fog life cycle.
The coastal fog (C-FOG) project is a large collaboration aimed at improving the prediction of marine fog. The project included an extensive field campaign in autumn 2018 that collected meteorological and microphycial data during fog at several coastal sites in eastern Canada and from a concurrent research cruise in the Atlantic Ocean.
Our group is focused on performing detailed small-scale numerical simulations of marine fog to help us understand the physical processes that determine whether fog will form and how it will develop. We are comparing the results of these simulations to the field campaign data to evaluate the model performance. By understanding how different processes affect fog formation and maintenance, we aim to improve the parameterization of these processes in larger-scale models to improve forecasting of marine fog.
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