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Helicity dynamics of atmospheric flow
Advances in Atmospheric Sciences, 1994Helicity is an important physical variable which is similar to the energy and enstrophy in three-dimensional fluid. It can be used to describe the motion in the direction of fluid rotation and also can be regarded as a new physical variable in turbulence theory. In recent years, it has been used in atmospheric dynamics.
Tan Zhemin, Wu Rongsheng
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Atmospheric Boundary Layer Flows
1994Boundary layer meteorology is the study of the physical processes that take place in the layer of air that is most influenced by the earth's underlying surface. This text/reference gives an uncomplicated view of the structure of the boundary layer, the instruments available for measuring its mean and turbulent properties, how best to make the ...
J. C. Kaimal, J. J. Finnigan
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Mirror Images of Atmospheric Flow
Monthly Weather Review, 1991Abstract We address whether there are pairs of instantaneous 500-mb flow patterns that are, relative to the climatology, as much as possible each other's opposite (which we term “mirror images” or “antilogs”), and we investigate whether such flows are followed by opposite 12-h time tendencies.
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Predictability Regimes in Atmospheric Flow
Monthly Weather Review, 1994Abstract Results from the European Centre for Medium-Range Weather Forecasts (ECMWF) high-resolution (T213L31) global analysis-forecast system are analysed as a function of scale. Three regimes of forecast skill are identified, only one of which exhibits classical predictability behavior in which error, initially concentrated at smaller scales ...
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Surface resistance in atmospheric flow
Quarterly Journal of the Royal Meteorological Society, 1936AbstractThe formula for surface resistance to atmospheric flow, F = ρκV2s, where Vs is the velocity of the surface wind, ρ the density, and κ a non‐dimensional constant, was proposed by G. I. Taylor, on an analogy with flow in pipes. In pipes, the value of κ was 0.004, and Taylor gave a mean value of 0.0025 for κ in the case of flow of air over the ...
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Atmospheric wave-mean flow interactions
2009The interactions between the zonally-averaged flow and the various eddy circulations in the atmosphere are studied using NCEP/NCAR Reanalysis data. The contributions to zonal- and potential temperature-tendency and zonal kinetic energy production due to both the Ferrel and Hadley circulations are determined.
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Polymer Electrolyte Membranes for Vanadium Redox Flow Batteries: Fundamentals and Applications
Progress in Energy and Combustion Science, 2021Xingyi Shi +2 more
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