Results 131 to 140 of about 3,922,670 (148)
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2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
The dual precipitation radar (DPR) on board the GPM (Global precipitation measurement) core observatory satellite is expected to improve our knowledge of precipitation processes. DPR offers dual frequency observations (Ku and Ka band) along the vertical profiles which allow us to investigate the microphysics using the difference between two frequency ...
V Chandrasekar
exaly +3 more sources
The dual precipitation radar (DPR) on board the GPM (Global precipitation measurement) core observatory satellite is expected to improve our knowledge of precipitation processes. DPR offers dual frequency observations (Ku and Ka band) along the vertical profiles which allow us to investigate the microphysics using the difference between two frequency ...
V Chandrasekar
exaly +3 more sources
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.
Kyung-Eak Kim
exaly +2 more sources
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.
Kyung-Eak Kim
exaly +2 more sources
Advances in Atmospheric Sciences, 2018
A modified hydrometeor classification algorithm (HCA) is developed in this study for Chinese polarimetric radars. This algorithm is based on the U.S. operational HCA. Meanwhile, the methodology of statistics-based optimization is proposed including calibration checking, datasets selection, membership functions modification, computation thresholds ...
Ming Wei, Chong Wu
exaly +2 more sources
A modified hydrometeor classification algorithm (HCA) is developed in this study for Chinese polarimetric radars. This algorithm is based on the U.S. operational HCA. Meanwhile, the methodology of statistics-based optimization is proposed including calibration checking, datasets selection, membership functions modification, computation thresholds ...
Ming Wei, Chong Wu
exaly +2 more sources
Remote Sensing, 2021 Hydrometeor classification remains a challenge in winter precipitation cloud systems. To address this issue, 42 snowfall events were investigated based on a multi-platform radar observation system (i.e., X-band dual-polarization radar, Ka-band millimeter
Delong Zhao, Yichen Chen
exaly +2 more sources
Two-Dimensional Hydrometeor Image Classification by Statistical Pattern Recognition Algorithms
Journal of Applied Meteorology, 1981Abstract 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 +3 more
openaire +1 more source
2007 IEEE International Geoscience and Remote Sensing Symposium, 2007
Dual-polarized weather radars are capable to detect and identify different classes of hydrometeors, within stratiform and convective storms exploiting polarimetric diversity. A model- supervised Bayesian method for hydrometeor classification (BRAHC), tuned for S- and X- band, is described in this study.
Marzano +11 more
openaire +2 more sources
Dual-polarized weather radars are capable to detect and identify different classes of hydrometeors, within stratiform and convective storms exploiting polarimetric diversity. A model- supervised Bayesian method for hydrometeor classification (BRAHC), tuned for S- and X- band, is described in this study.
Marzano +11 more
openaire +2 more sources
An All-Seasons Surface Hydrometeor Classification Algorithm (sfcHCA) for the WSR-88D Radar Network
Journal of Atmospheric and Oceanic TechnologyAbstract Determining surface precipitation type is an operational forecasting challenge, particularly in complex cold-season precipitation events and in areas with a dearth of observations. This paper describes a new radar algorithm proposed for the NEXRAD network called the surface hydrometeor classification algorithm (sfcHCA).
Jacob T. Carlin +3 more
openaire +1 more source
Hydrometeor Distribution and Linear Depolarization Ratio in Thunderstorms
Remote Sensing, 2020Ondřej Fiser +2 more
exaly
Case Study of the Hydrometeor Classification with the S-band Dual-Polarization Radar
Korean Society of Hazard Mitigation, 2014Jae-Kyoung Lee
exaly