Title
Polarimetric radar studies of atmospheric ice particles
Abstract
Single scattering properties of ice crystals are described at microwave frequencies using discrete dipole approximations and Rayleigh scattering techniques. For a given shape, the average bulk densities of ice crystals can be estimated using the ratio of the copolarized radar signal in a linear (horizontal, vertical) polarization basis. Reflectivity depends on the ice content (g×m-3), and also on both size distribution parameters and average bulk density of the scatterers. Differential propagation phase is primarily a function of shape, ice water content, and is independent of size distribution parameters. Thus, by using a combination of polarimetric radar measurements, average ice content, bulk density, and shape of distributed scatterers call be inferred. These techniques become quite complex in the case of a winter storm where scatterers can exist with varying shape and bulk densities. Polarimetric radar properties of such complex distributed scatterers are modeled. Physical variations in the relation among ice water content, reflectivity, and differential propagation phase are considered with respect to change in the shape of size distribution, bulk density,,and average shape of the scatterers. Also, simultaneous polarimetric radar observations and in situ aircraft measurements are shown to demonstrate practical applicability of the techniques
Year
DOI
Venue
1994
10.1109/36.285183
Geoscience and Remote Sensing, IEEE Transactions  
Keywords
Field
DocType
clouds,polarimetry,radiowave propagation,remote sensing,remote sensing by radar,storms,tropospheric electromagnetic wave propagation,Rayleigh scattering,atmosphere troposphere,backscatter model,bulk density,cloud particle,copolarized,discrete dipole approximation,ice particles,measurement technique,microwave,polarimetry,polarization,radar remote sensing,radiowave propagation scattering,shape,single scattering,storm
Radar,Rayleigh scattering,Polarimetry,Remote sensing,Ice crystals,Polarization (waves),Crystal,Environmental science,Scattering,Discrete dipole approximation
Journal
Volume
Issue
ISSN
32
1
0196-2892
Citations 
PageRank 
References 
7
1.98
0
Authors
4
Name
Order
Citations
PageRank
Vivekanandan, J.171.98
Bringi, V.N.25421.63
Hagen, M.371.98
Meischner, P.471.98