Premium
Differential reflectivity and circular depolarization ratio radar signals and related drop oscillation and propagation effects in rainfall
Author(s) -
Seliga T. A.,
Aydin K.,
Bringi V. N.
Publication year - 1984
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs019i001p00081
Subject(s) - drop (telecommunication) , radar , wavelength , optics , reflectivity , oscillation (cell signaling) , polarization (electrochemistry) , physics , materials science , chemistry , telecommunications , biochemistry , computer science
Differential reflectivity (Z DR ) and circular depolarization ratio (CDR) radar signals are directly related to each other and to the median drop size diameter of rainfall when the drop sizes are exponentially distributed. These polarization parameters are examined for both static and oscillating raindrop shapes along with their relationships with rainfall rate and liquid water content estimates derived from Z DR or CDR and reflectivity factor ( Z ) measurements. Propagation effects at S band wavelengths are also considered and shown to be particularly important in CDR measurements.