Results 171 to 180 of about 1,788,071 (189)

A Hydrometeor Classification Method for X-Band Polarimetric Radar: Construction and Validation Focusing on Solid Hydrometeors under Moist Environments

Journal of Atmospheric and Oceanic Technology, 2015
AbstractA fuzzy-logic-based hydrometeor classification (HC) method for X-band polarimetric radar (X-pol), which is suitable for observation of solid hydrometeors under moist environments producing little or no hail, is constructed and validated. This HC method identifies the most likely hydrometeor at each radar sampling volume from eight categories: 1)
Takeharu Kouketsu, Hiroshi Uyeda, Tadayasu Ohigashi, Mariko Oue, Hiroto Takeuchi, Taro Shinoda, Kazuhisa Tsuboki, Mamoru Kubo, Ken-ichiro Muramoto   +8 more
openaire   +1 more source

Hydrometeor classification for X-band dual polarization radar on-board civil aircrafts

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
Polarimetric techniques applied to radars on-board civil aircraft can improve the estimation of risk zones due to dangerous weather during flight. Usually, X-band weather radars are installed at the nose of civil aircrafts. This band is affected by strong attenuation in case of intense precipitation (liquid or mixed phase).
Nicoletta Roberto, Elisa Adirosi, Luca Baldini 0001, Luca Facheris, Fabrizio Cuccoli, Alberto Lupidi, Andrea Garzelli   +6 more
openaire   +2 more sources

SORPTION BY THE EARTH SURFACE AND A NEW CLASSIFICATION OF KATA-HYDROMETEORIC PROCESSES

Journal of Meteorology, 1958
Abstract It is proposed to call all processes bringing water of any phase to the surface kata-hydrometeoric processes.Their classification includes, e.g., intercepted precipitation, dew and at least five forms of sorption. Specialemphasis is then given to some generally neglected sorptive processes.
openaire   +1 more source

Two-Dimensional Hydrometeor Image Classification by Statistical Pattern Recognition Algorithms

Journal of Applied Meteorology, 1981
Abstract The investigation reported here involves the automatic classification of binary (black and white) images of hydrometeors (ice particles and raindrops) taken from cloud samples. The goal is to classify such images (both complete and fractional) into the seven most common classes of hydrometeors by statistical pattern recognition techniques ...
Mizanur M. Rahman, Raymond G. Jacquot, Edmund A. Quincy, Ronald E. Stewart   +3 more
openaire   +1 more source

The Hydrometeor Classification Algorithm for the Polarimetric WSR-88D: Description and Application to an MCS

Weather and Forecasting, 2009
Abstract This paper contains a description of the most recent version of the hydrometeor classification algorithm for polarimetric Weather Surveillance Radar-1988 Doppler (WSR-88D). This version contains several modifications and refinements of the previous echo classification algorithm based on the principles of fuzzy logic.
Hyang Suk Park, A. V. Ryzhkov, D. S. Zrnić, Kyung-Eak Kim   +3 more
openaire   +1 more source

Supervised Classification and Estimation of Hydrometeors From C-Band Dual-Polarized Radars: A Bayesian Approach

IEEE Transactions on Geoscience and Remote Sensing, 2008
In this paper, a Bayesian statistical approach for supervised classification and estimation of hydrometeors, using a C-band polarimetric radar, is presented and discussed. The Bayesian Radar Algorithm for Hydrometeor Classification at C-band (BRAHCC) is supervised by a backscattering microphysical model, aimed at representing ten different hydrometeor ...
Marzano, FSa b c, Scaranari, Db d, Montopoli, Mc e, Vulpiani, Ga c f   +7 more
openaire   +2 more sources

Hydrometeor classification system using dual-polarization radar measurements: model improvements and in situ verification

IEEE Transactions on Geoscience and Remote Sensing, 2005
Sanghun Lim, V N Bringi
exaly  

Radar velocity variance and hydrometeor classification.

2005
Evaristo, R., Scialom, Georges, Lemaître, Yvon   +2 more
openaire   +1 more source

Statistics-based optimization of the polarimetric radar hydrometeor classification algorithm and its application for a squall line in South China

Advances in Atmospheric Sciences, 2018
Ming Wei, Chong Wu
exaly  

Combining disdrometer, microscopic photography, and cloud radar to study distributions of hydrometeor types, size and fall velocity

Atmospheric Research, 2019
Yichen Chen, Ping Tian, Chunsong Lu
exaly