Thermodynamic and Radiative Structure of Stratocumulus-Topped Boundary Layers*
نویسندگان
چکیده
منابع مشابه
Stochastic effects in the representation of stratocumulus-topped mixed layers
Stratocumulus clouds are an integral component of the climate system. They affect both its mean state and variability, and are central to many questions related to climate change. They are also very difficult to represent with fidelity in modern forecast systems and climate models. Their importance is associated with what one may call long-term climatic robustness, which is in marked contrast t...
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The ability of the U.S. Navy’s Coupled Ocean-Atmosphere Mesoscale Prediction System (COAMPSTM) to accurately forecast the height and structure of the Marine Boundary Layer (MBL) in the coastal zone is analyzed and compared to surface and aircraft observations from the Dynamics and Evolution of Coastal Stratus (DECS) field study conducted along the central coast of California from June, 16 to Ju...
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Large-eddy simulations of shear-free stratocumulus-topped layers tend strongly toward a two-layer structure as the negative area in the buoyancy flux profile that would be necessary to maintain a mixed layer increases to more than 10% of the positive area. In addition to identifying a threshold for what amounts to a convective transition, the simulations provide further evidence that a commonly...
متن کاملUnderstanding Near-Surface and In-cloud Turbulent Fluxes in the Coastal Stratocumulus-topped Boundary Layers
The objective of this project is to quantify the spatial and temporal variability of the turbulent fluxes in the Monterey Bay area. The analysis from this study provides the surface forcing to our collaborators (AOSN investigators) and enable us to understand these variabilities in relation to the sea states and the stratocumulus-topped marine atmospheric boundary layers (MABL) properties. The ...
متن کاملA method to determine the amounts of cloud-top radiative and evaporative cooling in a stratocumulus-topped boundary layer
The turbulent processes of a stratocumulus-topped marine boundary layer are not yet fully understood. Among the issues is the relative importance of the effects of cloud-top radiative and evaporative cooling in driving the stratocumulus-topped marine boundary layer turbulence, and in producing cloud break-up. A better way to analyse the relevant observations is needed. Based on the concepts of ...
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ژورنال
عنوان ژورنال: Journal of the Atmospheric Sciences
سال: 2015
ISSN: 0022-4928,1520-0469
DOI: 10.1175/jas-d-13-0313.1