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Peak Reading and Thresholding in Processing Radar Weather Data
Publisher: American Meteorological Society
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, ...
PRECIPITATION TRAJECTORIES AND PATTERNS
Publisher: American Meteorological Society
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 ...
An Intercomparison of Temperature and Moisture Fields Derived from TIROS Operational Vertical Sounder Data by Different Retrieval Techniques. Part I: Basic Statistics
Publisher: American Meteorological Society
Abstract: Fields of temperature, thickness and precipitable water, derived from common sets of Tiros Operational Vertical Sounder (TOVS) radiance data have been intercompared. These fields were produced by a variety of institutions ...
Radar Precipitation Maps as Lightning Indicators
Publisher: American Meteorological Society
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 ...
Structure and Dynamics of Bounded Vortex Flows With Different Nozzle Heights
Publisher: The American Society of Mechanical Engineers (ASME)
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. ...
A Theoretical and Diagnostic Study of Solitary Waves and Atmospheric Blocking
Publisher: American Meteorological Society
Abstract: Theories which associate atmospheric blocking with isolated ?free mode? solutions of the equations of motion are reviewed and the central role played by the potential function ? ≡ dq/d? (where q is the is the quasi-geostrophic ...
PATTERN ANALYSIS OF ONE SUMMER'S MULTILEVEL MAPS OF MONTREAL RAIN
Publisher: American Meteorological Society
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 ...
Measurement of Snowfall by Radar
Publisher: American Meteorological Society
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 ...