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A Study of Australian Soils as Ice Nuclei
Publisher: American Meteorological Society
Abstract: The ice nucleating properties of some Australian arid zone soils have been studied in the laboratory, simulating as closely as possible the conditions pertaining to soil particles in the real atmosphere. Both mixing cold ...
Wind-Induced Drift In Contained Bodies of Water
Publisher: American Meteorological Society
Abstract: From a review of experimental evidence it is concluded that in confined bodies of water the ratio of surface drift to surface friction velocity, us, u* is a function of water depth that precludes the application of ...
On the Variation of Maximum Wind Gusts with Height
Publisher: American Meteorological Society
Abstract: The effects of time-averaging and length of record on the variance of horizontal wind speed are considered through power spectral techniques. These effects are applied to a height profile of intensity of turbulence (ratio ...
The Effect of Averaging Time and Sample Duration on Estimation and Measurement of Maximum Wind Gusts
Publisher: American Meteorological Society
Abstract: Using an assumed spectral density function, the ratio of the maximum gust of t seconds averaging time, drawn from a sample duration of T seconds, to the maximum S-second gust from a Θ-second sample is derived using the ...
Characteristics of Dust Devils in Australia
Publisher: American Meteorological Society
Abstract: Following a suggestion by Deardorff, Hess et al. have proposed that a necessary condition for the formation of dust devils is ?h/L?50, where h is the convective boundary layer height and L the Obukhov length. A survey of ...
Atmospheric Vortices in Shallow Convection
Publisher: American Meteorological Society
Abstract: Observations of funnel clouds over Port Phillip Bay, Victoria, Australia, indicate that they occur during outbreaks of cool air from the Southern Ocean advecting over the relatively warm bay waters. These clouds act as ...