Abstract: A new PPI map is made up of 600 radial lines, each of 100 dots. Each dot is in one of six shades of grey, thus indicating target intensity, and dot size varies somewhat with shade. Each dot combines k independent data, ...

Abstract: A characteristic ?mares' tail? pattern of falling snow (observed in vertical section by radar) suggests that the snow is generated continuously, in compact generating elements; the pattern results from the snow's falling ...

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Abstract: Radar maps of precipitation at a height of 6 km have been studied for the thunderstorms of one July day. Regions on these maps within which the intensity level exceeds 30 dBZ (corresponding to a rainfall rate of 2.8 mm ...

Abstract: A bounded vortex flow is generated by a nozzle with a central suction outlet surrounded by inlet jets with a 15 deg inclination in the azimuthal direction. The jets impinge on a flat surface called the impingement surface. ...

Abstract: For the summer of 1964, precipitation intensity in the vicinity of Montreal, observed by CPS-9 radar, was recorded on constant-altitude maps at six heights. To allow for attenuation (at ??=?3.2 cm) and other radar ...

Abstract: Using a CPS-9 radar (wavelength 3.2 cm, beamwidth 1°) in dry snow, radar returns from a layer at an average height of 5000 ft were converted to snowfall rates (taking Z?R2.0) and summed over 36 hr to obtain a map of snowfall ...

Abstract: Strong evidence, available from the experiments of Nakaya and his co-workers and bolstered by an analogue experiment, supports the argument that type of snow-crystal growth is determined principally by the excess of the ...

Abstract: According to Rayleigh scattering theory for small spheres, back scattering is proportional to |K2Z where K is the dielectric factor and Z is the sum of the sixth powers of the diameter D. For small non-spherical particles ...

Abstract: Precipitation particles which fall from a source aloft through a wind shear are sorted as to size, the largest particles reaching the ground closest to the generating source, the smaller particles further from it. If ...