Results 21 to 30 of about 1,788,071 (189)

(GO)²-SIM: a GCM-oriented ground-observation forward-simulator framework for objective evaluation of cloud and precipitation phase [PDF]

Geoscientific Model Development, 2018
General circulation model (GCM) evaluation using ground-based observations is complicated by inconsistencies in hydrometeor and phase definitions. Here we describe (GO)2-SIM, a forward simulator designed for objective hydrometeor-phase evaluation, and
K. Lamer, A. M. Fridlind, A. S. Ackerman, P. Kollias, P. Kollias, P. Kollias, E. E. Clothiaux, M. Kelley   +7 more
doaj   +1 more source

Case Study of the Hydrometeor Classification with the S-band Dual-Polarization Radar

Korean Society of Hazard Mitigation, 2014
Jae-Kyoung Lee
exaly   +2 more sources

Research on hydrometeor classification of convective weather based on SVM by dual linear polarization radar

暴雨灾害, 2019
This study established a Support Vector Machine (SVM)-based radar classification model of hydrometeor under the T-matrix based radar detection model of hydrometeors.
Tongxiao YANG, Caijun YUE
doaj   +1 more source

A Dual-Polarization Radar Hydrometeor Classification Algorithm for Winter Precipitation [PDF]

Journal of Atmospheric and Oceanic Technology, 2014
Abstract The purpose of this study is to demonstrate the use of polarimetric observations in a radar-based winter hydrometeor classification algorithm. This is accomplished by deriving bulk electromagnetic scattering properties of stratiform, cold-season rain, freezing rain, sleet, dry aggregated snowflakes, dendritic snow crystals, and ...
Brenda Dolan, Steven A. Rutledge, Elizabeth J. Thompson, V. Chandrasekar, Boon Leng Cheong   +4 more
openaire   +1 more source

Study on deep-learning-based identification of hydrometeors observed by dual polarization Doppler weather radars

EURASIP Journal on Wireless Communications and Networking, 2017
Hydrometeor classification for dual polarization Doppler weather radar echo is a procedure that identifies hydrometeor types based on the scattering properties of precipitation particles to polarized electromagnetic waves.
Haijiang Wang, Yuanbo Ran, Yangyang Deng, Xu Wang   +3 more
doaj   +1 more source

Analysis of Two Convective Storms Using Polarimetric X-Band Radar and Satellite Data

Remote Sensing, 2022
We analyzed two convective storms that passed over or near the Milešovka meteorological observatory. The observatory is located at the top of a hill and has been recently equipped with a Doppler polarimetric X-band radar FURUNO WR2120 for cloud ...
Gabriela Bobotová, Zbyněk Sokol, Jana Popová, Ondřej Fišer, Petr Zacharov   +4 more
doaj   +1 more source

Reconstruction of the mass and geometry of snowfall particles from multi-angle snowflake camera (MASC) images [PDF]

Atmospheric Measurement Techniques, 2021
This paper presents a method named 3D-GAN, based on a generative adversarial network (GAN), to retrieve the total mass, 3D structure and the internal mass distribution of snowflakes.
J. Leinonen, J. Leinonen, J. Grazioli, A. Berne   +3 more
doaj   +1 more source

Hydrometeor partitioning ratios for dual-frequency space-borne and polarimetric ground-based radar observations [PDF]

Atmospheric Measurement Techniques
Conventional radar-based hydrometeor classification algorithms identify the dominant hydrometeor type within a resolved radar volume, while newer techniques estimate the proportions of individual hydrometeor classes (hydrometeor partitioning ratios, HPRs)
V. Pejcic, K. Mroz, K. Mühlbauer, S. Trömel, S. Trömel   +4 more
doaj   +1 more source

Testing a Procedure for Automatic Classification of Hydrometeor Types

Journal of Atmospheric and Oceanic Technology, 2001
Abstract Examples of automatic interpretation of polarimetric measurements made with an algorithm that classifies precipitation, from an Oklahoma squall line and a Florida airmass storm are presented. Developed in this paper are sensitivity tests of this algorithm to various polarimetric variables.
Dus̆an S. Zrnić, Alexander Ryzhkov, Jerry Straka, Yidi Liu, J. Vivekanandan   +4 more
openaire   +1 more source

Calibration of D3R Weather Radar Using UAV-Hosted Target

Remote Sensing, 2022
The accuracy of weather radar-measured products, such as reflectivity, plays a crucial factor in obtaining good quality, derived remote sensing products, such as hydrometeor classification.
Shashank S. Joshil, Chandra V. Chandrasekar   +1 more
doaj   +1 more source