Journal ArticleDOI
Roll vortices in the planetary boundary layer: A review
D. Etling,Robert A. Brown +1 more
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TLDR
Roll vortices may be loosely defined as quasi-two-dimensional organized large eddies with their horizontal axis extending through the whole planetary boundary layer (PBL), and their indirect manifestation is most obvious in so-called cloud streets as can be seen in numerous satellite pictures as mentioned in this paper.Abstract:
Roll vortices may be loosely defined as quasi two-dimensional organized large eddies with their horizontal axis extending through the whole planetary boundary layer (PBL). Their indirect manifestation is most obvious in so-called cloud streets as can be seen in numerous satellite pictures. Although this phenomenon has been known for more than twenty years and has been treated in a review by one of us (R.A.Brown) in 1980, there has been a recent resurgence in interest and information. The interest in ocena/land-atmosphere interactions in the context of climate modeling has led to detailed observational and modeling efforts on this problem. The presence of rolls can have a large impact on flux modelling in the PBL. Hence, we shall review recent advances in our understanding of organized large eddies in the PBL and on their role in vertical transport of momentum, heat, moisture and chemical trace substances within the lowest part of the atmosphere.read more
Citations
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An Observational and Modeling Study of Characteristics of Urban Heat Island and Boundary Layer Structures in Beijing
TL;DR: In this paper, the characteristics of urban heat island (UHI) and boundary layer structures in the Beijing area, China, are analyzed using conventional and Moderate Resolution Imaging Spectroradiometer (MODIS) observations.
Journal ArticleDOI
Climate change impacts on wind energy: A review
TL;DR: In this paper, the authors review possible mechanisms by which global climate variability and change may influence the wind energy resource and operating conditions, summarize some of the tools that are being employed to quantify these effects and the sources of uncertainty in making such projections, and discuss results of studies conducted to date.
Book
The Turbulent Ocean
TL;DR: The Turbulent Ocean as discussed by the authors describes the principal dynamic processes that control the distribution of turbulence, its dissipation of kinetic energy and its effects on the dispersion of properties such as heat, salinity, and dissolved or suspended matter in the deep ocean, the shallow coastal and the continental shelf seas.
Journal ArticleDOI
Review: the atmospheric boundary layer
TL;DR: An overview of the atmospheric boundary layer (ABL) over both continental and ocean surfaces, mainly from observational and modelling perspectives, is given in this paper, where the authors present exciting challenges so far as improved understanding of ABL behaviour and improved representation of the ABL in numerical models of the atmosphere are concerned.
Journal ArticleDOI
Mesoscale shallow convection in the atmosphere
B. W. Atkinson,J. Wu Zhang +1 more
TL;DR: A review of the observational, experimental, theoretical, and numerical studies of mesoscale shallow convection (MSC) in the atmosphere can be found in this paper, where a review of theoretical and laboratory analyses and numerical modeling of MSC is presented.
References
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Journal ArticleDOI
Large-Scale Eddies in the Unstably Stratified Atmospheric Surface Layer. Part II: Turbulent Pressure Fluctuations and the Budgets of Heat Flux, Stress and Turbulent Kinetic Energy
TL;DR: In this paper, a method for retrieving turbulent pressure fluctuations from tower measurements of velocity and temperature, through use of the equations of motion, was developed to retrieve turbulent pressure fluctuation.
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Three Examples of Fair-Weather Mesoscale Boundary-Layer Convection in the Tropics
TL;DR: In this paper, fair-weather to towering cumulus clouds over the East Atlantic Ocean during GATE were frequently organized into mesoscale structures using gust-probe aircraft data collected in parallel straight-and-level flight tracks at 150 m, and covering an area greater than 30×30 km.
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Instability of the Stratified Ekman Boundary Layer and the Generation of Internal Waves.
Robert Kaylor,Alan J. Faller +1 more
TL;DR: In this article, a resonance of the shear-flow instability with internal gravity waves with respect to the Brunt-Vaisala frequency has been found in the Ekman boundary layer.
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A Numerical Study of the Development of Claud-Street Spacing
TL;DR: In this paper, two-dimensional numerical computations of the developing boundary layer with a positive surface heat flux are presented, and the model incorporates moisture phase-change effects; they were particularly interested in the cloud-street formation.
Journal ArticleDOI
The width-height ratio of large convection cells
TL;DR: According to as discussed by the authors, one of the outstanding features calling for explanation in the cellular cloud patterns revealed by satellites is that the diameter-to-depth ratio is around thirty instead of about three as predicted by classical theory and verified by laboratory experiments.