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Polarimetric radar modeling of mixtures of precipitation particles

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dc.contributor.authorBringi, V. N., author
dc.contributor.authorRaghavan, Ravikumar, author
dc.contributor.authorVivekanandan, J., author
dc.contributor.authorIEEE, publisher
dc.date.accessioned2007-01-03T04:53:53Z
dc.date.available2007-01-03T04:53:53Z
dc.date.issued1993
dc.description.abstractWith the recent advances of dual-polarized radar techniques in meteorology it is now possible to deduce precipitation microphysical characteristics in far more detail than possible with reflectivity measurements alone. Radar parameters such as differential reflectivity and differential phase between horizontal and vertical polarizations have been studied in detail as well as linear depolarization ratio, copolar correlation coefficient, and backscatter differential phase. While these parameters can be linked to certain microphysical properties of specific classes of precipitation such as raindrops or hail, very little study has been directed at the practically important cases of mixtures of different types of precipitation particles such as rain, hail, graupel, ice crystals, and snow. Each type can have different size, shape, orientation, and dielectric constant distributions. The treatment here is rigorous and is based on the Mueller matrix formulation. Radar parameters are derived from the averaged Mueller matrix computations. Careful consideration is given to the orientation and size distributions of the different particle types. After calculating single particle scattering characteristics, some simple two-component mixtures such as rain/hail and ice crystals/snow are considered. Finally, a 2D numerical cloud model is used to simulate the rain, hail/graupel, and snow fields of an evolving convective storm from which the radar parameters are derived for the initial, peak, and dissipating stages of the storm. Model computations are performed at C and S-band frequencies.
dc.description.sponsorshipThis work was supported by the FAA under Contract DTFA01-90-Z-02005 and the National Science Foundation under Contract ATM-9214864. The work of R. Raghavan was also supported by NASA through USRA under Contract NAS8-37140. The National Center for Atmospheric Research is sponsored by the National Science Foundation.
dc.format.mediumborn digital
dc.format.mediumarticles
dc.identifier.bibliographicCitationVivekanandan, J., Ravikumar Raghavan, and V. N. Bringi, Polarimetric Radar Modeling of Mixtures of Precipitation Particles, IEEE Transactions on Geoscience and Remote Sensing 31, no. 5 (September 1993): 1017-1030.
dc.identifier.urihttp://hdl.handle.net/10217/1545
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartofFaculty Publications
dc.rights©1993 IEEE.
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectradiowave propagation
dc.subjectmixtures
dc.subjectelectromagnetic wave scattering
dc.subjectatmospheric precipitation
dc.subjectremote sensing by radar
dc.subjectstorms
dc.titlePolarimetric radar modeling of mixtures of precipitation particles
dc.typeText

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