* Surface (Ocean) Layer Physics

* Ocean-Atmosphere Thermodynamic Interaction

* Sea-Spray & Aerosol Microphysics

* Turbulence

 

 

The hybrid Lagrangian - Eulerian trajectory ensemble parcels model approach is being used in my study in the prediction of  the suspended sea-spray droplet distribution under strong winds - follows the Kohler equations and cloud droplet growth formulation. The parcels in the model are activated according to user specified environmental conditions and a given CCN spectra; the model performs time integration of droplet formation and growth as it lifts the parcels within a state-of-the-art turbulent velocity field, thereby allowing the spectral-mass CCN bins to deliquesce, activate, and grow from haze particle to cloud droplet sizes. Passive scalars are also being advected in the turbulent field and taken into account during time integration. 

  

The model solves a set of ordinary differential equations that define the microphysics of cloud droplet growth from deliquesced aerosol while taking into account the dynamical influence of the rising air parcels. The parcels are lifted by a turbulent-like 2-D velocity field while solves iteratively the droplet growth equation, and considering specifically the time rate of changes in saturation ratio, temperature, air and droplet-solution density, liquid water content, turbulent mixing between adjacent parcels (including mixing of non-conservative values) and stochastic droplet collisions.