Application of the Generalized Gamma Model to Represent the Full Rain Drop Size Distribution Spectra

摘要: Abstract We report on measurements of drop size distributions (DSD) using collocated instruments (a Droplet Measurement Technologies, Inc., Meteorological Particle Spectrometer and a 2D-video disdrometer) from two locations with different rainfall climates (Greeley, Colorado, Huntsville, Alabama, the latter that include outer rainbands Hurricane Irma). The combination gives what we term as “full” DSD spectra, shape which generally cannot be represented by standard gamma model, but instead requires additional flexibility generalized includes parameters (μ c). double-moment normalization DSDs third fourth moments is used to arrive at intrinsic shapes are shown capture simultaneously drizzle mode well precipitation mode, together “plateau” region between two. estimation μ c done g...