Please wait a minute...
Adv search
PLATEAU METEOROLOGY  1993, Vol. 12 Issue (1): 84-89    DOI:
    
HAIL CLOUD RECOGNITION AND ITS RESULTS VERIFICATION BASED ON RADAR ECHOES DATA BY USING PRINCIPAL COMPONENT ANALYSIS
Li Zuoyong, Liu Shaonong, Deng Xinmin, Zhang Huijun
Chengdu Institute of Meteorology, Chengdu, Sichuan 610041
Download:  PDF (410KB) 
Export:  BibTeX | EndNote (RIS)      
Abstract  This paper presents a comprehensive recognition formula of hailstorm cloud by using principal component analysis.The approach establishes correlation coefficient matrix of recognition indexes with historical data of radar echoes in a certain location.Then factor loads can be determined by using principal component analysis and the weights of recognition indexes are derived by load matrix and correlation coefficient matrix.Finally,the discrimination formula of hailstorm cloud is derived.The discrimination formula established based on historical radar echoes data in Chengdu by this method is applied to forecasting test of Chengdu and results verification of Luzhou.The recognition results are better than comprehensive probability method.It shows the method is suitable for hail recognition.
Key words:  Recognition of hail cloud      Hail cloud index      Principal component analysis     
Received:  26 May 1992      Published:  24 March 1993

Cite this article: 

Li Zuoyong, Liu Shaonong, Deng Xinmin, Zhang Huijun. HAIL CLOUD RECOGNITION AND ITS RESULTS VERIFICATION BASED ON RADAR ECHOES DATA BY USING PRINCIPAL COMPONENT ANALYSIS. PLATEAU METEOROLOGY, 1993, 12(1): 84-89.

URL: 

http://www.gyqx.ac.cn/EN/     OR     http://www.gyqx.ac.cn/EN/Y1993/V12/I1/84

[1] YE Cheng-zhi-;LI Yun-ying;LI Zu-xian. Numerical study on the Water Vapor Transports of the TwoLandfalling Cyclones Affecting Hunan Province[J]. PLATEAU METEOROLOGY, 2009, 28(1): 98 -107 .
[2] . Revision of the Measured Value of Slow Antenna under the ComplexTerrain Condition of Qinghai-Tibetan Plateau[J]. PLATEAU METEOROLOGY, 2011, 30(4): 1046 -1051 .
[3] . Stream Structure of a Convective Line with Leading StratiformPrecipitation during Meiyu Period[J]. PLATEAU METEOROLOGY, 2011, 30(4): 1052 -1066 .
[4] . Spatial-Temporal Variations of Drought and Flood Intensitiesin Sichuan Region in the Last 50 Years[J]. PLATEAU METEOROLOGY, 2011, 30(5): 1170 -1179 .
[5] . Analysis of Changes in Different-Class Precipitationover Eastern China under Global Warming[J]. PLATEAU METEOROLOGY, 2009, 28(4): 889 -896 .
[6] . On the Research Progress of the Subtropical EastAsian Monsoon and Related Problem[J]. PLATEAU METEOROLOGY, 2008, 27(增刊): 1 -7 .
[7] . Simulation on Impact of Water Vapor in Various SourceAreas on NWC Precipitation Summer(I): Experiment Schemes and Contrast Run Results[J]. PLATEAU METEOROLOGY, 2009, 28(6): 1211 -1219 .
[8] . [J]. PLATEAU METEOROLOGY, 2010, 29(1): 137 -145 .
[9] . Cloud Structure, Precipitation Mechanism and Artificial EnhancementPrecipitation Condition for a Frontal Stratiform Cloud System[J]. PLATEAU METEOROLOGY, 2011, 30(5): 1308 -1323 .
[10] . Observational Study on Vertical Microphysical Structure ofan Autumn Cold-Front Cloud in Shijiazhuang Region[J]. PLATEAU METEOROLOGY, 2011, 30(5): 1324 -1336 .