Abstract: The measured reflectivity of a distributed target is given by the integration of reflectivity over the radar antenna radiation pattern. Assuming a Gaussian form for the main antenna lobe and fairly simple exponential and ...

Abstract: Measurement errors caused by antenna main-lobe and side-lobe distortion are computed for seven model thunderstorm reflectivity distributions observed over various ranges by model antenna beams with half-power widths of one ...

Abstract: Vertical velocity variance was measured by means of Doppler radar in a thunderstorm in which no hail fell on the ground. At least 5% of the variance measurements were too large to be accounted for by the spread of precipitation ...

Abstract: A scanning Doppler radar has capability for measurement of the tangential shear of radial velocity or gradient of the radial component of velocity in a direction normal to the radial vector. Tangential shear of sufficient ...

Abstract: The mean motion of particles in a thunderstorm anvil has been measured at various heights and elevation angles by Doppler radar, using the velocity-azimuth scanning mode of Lhermitte and Atlas with the harmonic analysis ...

Abstract: The frequency of hail occurrence in New England thunderstorms during 1956 and 1957 was directly related to the maximum heights and maximum reflectivity factors of the thunderstorm echoes measured by CPS-9 radar. Hail ...

Abstract: The storm which spawned the devastating Union City, Okla., tornado of 24 May 1973 was observed by Doppler Plan Shear Indicator (PSI). The PSI, an analog device for display of velocity gradients, had been temporarily mated ...

Abstract: No Abstract Available.

Abstract: Vertical profiles of radar reflectivity have been measured in the cores of New England thunderstorms and correlated with surface weather conditions reported by an extensive network of cooperating observers. Although the ...

Abstract: The depth to which a liquid-water cloud may be detected has been computed as a function of liquid-water content for radars at wavelengths of 0.86, 1.25 and 3.2 cm, with use of Atlas' relationship for Z versus liquid-water ...