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Parametric Estimation of Doppler Spectral Moments: An Alternative Ground Clutter Rejection Technique
Publisher: American Meteorological Society
Abstract: The theory of parametric techniques for the recovery of Doppler spectral moments from ground-clutter-contaminated measurements of the radar autocorrelation function is presented. Seven algorithms for the mean velocity are ...
Theoretical and Observational Study of Snow-Size Spectra and Snowflake Aggregation Efficiencies
Publisher: American Meteorological Society
Abstract: Mean snowflake collection efficiencies can be estimated by studying the height evolution of snow-size spectra in natural precipitation. This was done using coordinated aircraft and Doppler radar measurements of snow-size ...
An Approximate Analytical Model of the Vapor Deposition and Aggregation Growth of Snowflakes
Publisher: American Meteorological Society
Abstract: It is well known that snowflakes tend to distribute exponentially with respect to their melted diameter. This fact is used to formulate an approximate analytical model of the deposition and aggregation growth of snow in ...
The Orographic Modulation of Pre-Warm-Front Precipitation in Southern New England
Publisher: American Meteorological Society
Abstract: Topographic forcing over the hills and small mountains of southern New England plays an important role in determining the distribution of pre-warm-front precipitation from winter cyclones. Upslope regions receive 20?60% ...
The Autocorrelation Function and Doppler Spectral Moments: Geometric and Asymptotic Interpretations
Publisher: American Meteorological Society
Abstract: The relationships between the Doppler spectrum of velocities and the autocorrelation function can be studied via simple geometric and power series expansion relations. The asymptotic expansion of the autocorrelation function ...
The Growth of Snow in Winter Storms:. An Airborne Observational Study
Publisher: American Meteorological Society
Abstract: In studies of precipitation growth, comparisons between theory and observation are difficult because of the problem in obtaining a complete 4-dimensional (space and time) description of the kinematic, thermodynamic and ...
A Technique for Measuring Relative Threshold Nucleation Temperatures for Active Nucleation Catalysts
Publisher: American Meteorological Society
Abstract: A technique is described for using dilatometers to measure and compare the freezing temperature of water in the presence of various nucleation catalysts. Nucleation is indicated by the increase in volume that water undergone ...
The Role of the Winter Land Breeze in the Formation of Great Lake Snow Storms
Publisher: American Meteorological Society
Abstract: Radar and aircraft data are presented, in the form of case studies, for three shoreline-parallel snow bands that occurred over Lake Michigan. In all three cases a winter land breeze from one or both shores is shown to have ...