A Theory-Based Hydrometeor Identification Algorithm for X-Band Polarimetric Radars
نویسندگان
چکیده
منابع مشابه
A Theory-Based Hydrometeor Identification Algorithm for X-Band Polarimetric Radars
Although much work has been done at S band to automatically identify hydrometeors by using polarimetric radar, several challenges are presented when adapting such algorithms to X band. At X band, attenuation and non-Rayleigh scattering can pose significant problems. This study seeks to develop a hydrometeor identification (HID) algorithm for X band based on theoretical simulations using the T-m...
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Classification of hydrometeors has a wide variety of applications such as validation of cloud microphysical models, choice of algorithm for precipitation estimation and evaluation of assumptions made in the precipitation retrieval processes as well as validation of space borne observations. Dual-polarization radar measurements are sensitive to hydrometeors properties such as size, shape, phase ...
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Automatic classifications of radar polarimetric measurements into hydrometeor types using fuzzy-logic or other similar algorithms are now routinely done using ground-based cm-wavelength polarimetric radars (e.g., Vivekanandan et al. 1999; Lim. et al. 2005). In most of these algorithms, the polarimetric thresholds for various hydrometeor types are based on computational studies. A comprehensive ...
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Dual-polarization radar measurements are sensitive to hydrometeor properties such as shape, phase state, and fall behaviour (Bringi and Chandrasekar 2001) so that they can be used for hydrometeor classification purposes. The differential reflectivity (Zdr) is sensitive to the shape and orientation of precipitation particles: it can discriminate rain from spherical hail. The linear depolarizatio...
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A new 10-category, polarimetric-based hydrometeor identification algorithm (HID) for C band is developed from theoretical scattering simulations including wet snow, hail, and big drops/melting hail. TheHID is applied to data from seven wet seasons in Darwin, Australia, using the polarimetric C-band (C-POL) radar, to investigate microphysical differences between monsoon and break periods. Scatte...
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ژورنال
عنوان ژورنال: Journal of Atmospheric and Oceanic Technology
سال: 2009
ISSN: 1520-0426,0739-0572
DOI: 10.1175/2009jtecha1208.1