Abstract: The development of a mobile recording system for measuring temperature, pressure, and wind velocity in dust devils is discussed. Four dust devil penetrations are presented in which the above three quantities were measured ...

Abstract: An extensive dust devil census taken near Tucson, Ariz., has provided, from two independent areas, quantitative information on the relation of environmental conditions to the spatial distribution, frequency and duration ...

Abstract: Measurements from an extensive field program in the desert near Tucson, Ariz., are used to formulate a quantitative dust devil model. The model is based on measurements of temperature, pressure and wind velocity taken from ...

Abstract: The design and construction of a small, highly responsive pressure instrument with a sensitivity of approximately 0.1 mb is discussed. Two pressure sensors, or microbarophones, were used on a mobile tower to measure pressure ...

Abstract: There is now considerable evidence to substantiate the causal relationship between low altitude wind shear (LAWS) and the recent increase in low-altitude aircraft accidents. The National Research Council has found that for ...

Abstract: During September 1974 in the Lower Florida Keys, the first successful penetrations of mature waterspouts were accomplished by a specially instrumented research aircraft. Throughout the course of each penetration, the ...

Abstract: A new ice nucleant aerosol was produced by combustion of a 2% AgI-0.5 mole % Bil3-NH4I-acetone-water solution. The ice nucleating effectiveness of this aerosol is an order of magnitude greater than AgI alone at ?10°C. An ...