The impact of precipitation physical processes on the polarimetric radar variables

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dc.contributor.advisorRyzhkov, Alexander V||Bluestein, Howard B
dc.creatorKumjian, Matthew Robert
dc.date.accessioned2019-04-27T21:37:21Z
dc.date.available2019-04-27T21:37:21Z
dc.date.issued2012
dc.description.abstractThe ongoing upgrade of the National Weather Service WSR-88D radar network to polarimetric capabilities, as well as similar upgrades worldwide, will soon provide a wealth of data and information regarding storm precipitation physics. Fully understanding how a variety of microphysical processes are revealed in polarimetric data is necessary for the best use of these new data by operational and research meteorologists. The focus of this study is to quantify a number of these precipitation physics "fingerprints" in the polarimetric radar variables by using a synthesis of explicit microphysical modeling, electromagnetic scattering calculations, thought experiments, and polarimetric radar observations.
dc.description.abstractThe complete set of polarimetric variables available from linearly-orthogonal dual-polarization radars are derived from basic electromagnetic scattering principles. A detailed physical description of these variables is then provided for applications in precipitation and other atmospheric scatterers, as is a summary of common data artifacts. The impact of various precipitation physical processes on these radar variables is then quantified. Using explicit microphysical models, scattering calculations, observations, and thought experiments, the microphysical fingerprints are determined and quantified for raindrop thermal conduction, raindrop size sorting by sedimentation, updrafts, and vertical wind shear, evaporation of raindrops, coalescence of raindrops, and freezing of raindrops in deep convective storm updrafts. A catalogue of the qualitative fingerprints of a number of precipitation processes is summarized.
dc.format.extent327 pages
dc.format.mediumapplication.pdf
dc.identifier99349038402042
dc.identifier.urihttps://hdl.handle.net/11244/319188
dc.languageen_US
dc.relation.requiresAdobe Acrobat Reader
dc.subjectRadar meteorology
dc.subjectDoppler radar
dc.subjectPolarimetry
dc.subjectCloud physics
dc.subjectPrecipitation (Meteorology)
dc.thesis.degreePh.D.
dc.titleThe impact of precipitation physical processes on the polarimetric radar variables
dc.typetext
dc.typedocument
ou.groupCollege of Atmospheric & Geographic Sciences::School of Meteorology

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