Simulação da interação entre a microfísica turbulenta da camada limite com stratocumulus utilizando um modelo de coluna

• Autor(a) principal: Lutif, Ellen Yoshie Sudo
• Data de Publicação: 2005
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
• Texto Completo: http://www.repositorio.ufc.br/handle/riufc/46224
• topic: Micrometeorologia; Nuvens - propriedades ópticas; Turbulência atmosférica; Difusão atmosférica; Camada limite planetária

Atmospheric models and clouds. Numericals atmospheric models use distribution function to represent the spectrum of drops and its evolution due to process like condensation and evaporation, collision, coalescence. Considering that the evolution due to the distibuition of the size of drops reflects dynamics and thermodynamics clouds system features and its good representation pershapes an important role in the modeling of the humid atmosopherical processes. In this work we pershape a simple comparison between a measured drops spectra and its equivalent gamma distribution function_spectra. It can be shown that The shape parameter wich best represented the observated cases is v = 2. Quantifying the influence of stratocumulus clouds in Earth's surface energy budget is of great relevance to climate studies, since those clouds cover broad areas over the planet. Several questions rederring to the system of stratocumulus clouds remain open, including the effect of drizzle formation to their life cycle. In this work we uses a single column model (SCM) to investigate the relationship between microphysics and the turbulent structure of marine stratocumuli. The data show that the variabiliy found in the microphysics structure of Sc is related to the deeppening and changes in the vertical structure of the boundary layer, suggesting also that a strong connection between drizzle formation and decoupling between the mixed layer and the cloud layer exists.