88th Annual Meeting (20-24 January 2008)

Wednesday, 23 January 2008
An analytical expression for doppler spectra related to terminal velocity with non-uniform drop size distribution
Exhibit Hall B (Ernest N. Morial Convention Center)
Ming Fang, CIMMS/Univ. of Oklahoma, Norman, OK; and R. J. Doviak and P. Zhang
Poster PDF (152.2 kB)
Starting from the correlation function and neglecting other spectrum broadening mechanisms, an analytical expression for the Doppler spectrum is related to the drop's terminal velocity and size distribution if there is a unique relationship between drop's diameter and its terminal velocity. The derivation does not require drop size distribution to be homogeneous. This generalized expression reduces to previously derived expression if drop size distribution is uniform.

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