Hydrometeor classification from dual-polarized weather radar: extending fuzzy logic from S-band to C-band data
نویسندگان
چکیده
منابع مشابه
Hydrometeor classification with a C-band polarimetric radar
The scattering of electromagnetic energy by hydrometeors forms the basis of radar meteorology. Knowledge of hydrometeor types can be very important in particular applications. The occurrence of mixed-phase conditions, especially the melting of snow and ice, impacts on the accuracy of radar-based precipitation estimation and the discrimination of rain and hail is often very important in severe w...
متن کاملDual-polarization C-band weather radar algorithms for rain rate estimation and hydrometeor classification in an alpine region
Dual polarization is becoming the standard for new weather radar systems. In contrast to conventional weather radars, where the reflectivity is measured in one polarization plane only, a dual polarization radar provides transmission in either horizontal, vertical, or both polarizations while receiving both the horizontal and vertical channels simultaneously. Since hydrometeors are often far fro...
متن کاملHydrometeor Identification from W-band Polarimetric Measurements
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 ...
متن کاملHydrometeor classification methodology for C-band polarimetric radars
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 ...
متن کاملAttenuation Correction for Ka-band Cloud Radar Using X-band Weather Radar Data
In order to correct attenuated millimeter-wavelength (Ka-band) radar data and address the problem of instability, an attenuation correction methodology (attenuation correction with variation trend constraint; VTC) was developed. Using synchronous observation conditions and multi-band radars, the VTC method adopts the variation trends of reflectivity in X-band radar data captured with wavelet tr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Advances in Geosciences
سال: 2006
ISSN: 1680-7359
DOI: 10.5194/adgeo-7-109-2006