Deployment and Performance of an X-Band Dual-Polarization Radar during the Southern China Monsoon Rainfall Experiment

doi:10.3390/atmos9010004

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地灾害与地表过程重点实验室

	Deployment and Performance of an X-Band Dual-Polarization Radar during the Southern China Monsoon Rainfall Experiment
	Shi, Zhao 1,2,3; Chen, Haonan 4; Chandrasekar, Venkatachalam 4; He, Jianxin 3
刊名	ATMOSPHERE
	2018
卷号	9 期号:1 页码:20
关键词	dual-polarization X-band radar QPE SCMREX
ISSN号	2073-4433
DOI	10.3390/atmos9010004
英文摘要	An X-band dual-polarization radar (XPRAD) was deployed in Guangdong province as part of the Southern China Monsoon Rainfall Experiment (SCMREX) during the storm season in 2016. This paper presents a comprehensive assessment of XPRAD observations during SCMREX with emphasis on data processing and rainfall products. The differential phase-based attenuation correction and radar calibration using self-consistency of dual-polarization observables are presented. It is found that the standard deviation of the Z(dr) bias is less than 0.2 dB based on 'light rain at low angle' and 'dry aggregate snow' observations. Cross-comparison with two standard S-band China New Generation Weather Radars (CINRAD) shows that the bias of Z(h) has a mean value less than 1.5 dBZ and a standard deviation less than 0.5 dBZ. In addition, fifteen rainfall events that occurred during the intensive observing period (IOP) are analyzed to demonstrate the rainfall estimation performance of XPRAD. In particular, rainfall accumulations at 1-, 2- and 3-h scales derived using R(K-dp) and R(Z(h), Z(dr)) relations are evaluated using national level rain gauge data and CINRAD-based rainfall estimation. The results show that both R(K-dp)- and R(Z(h), Z(dr))-based products agree well with the rain gauge observations and CINRAD estimation. The difference between R(K-dp) and R(Z(h), Z(dr)) is not significant, although R(K-dp) shows slightly better performance than R(Z(h), Z(dr)).
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000424095100004
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/20801]
专题	成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者	He, Jianxin
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chengdu Univ Informat & Technol, Key Lab Atmospher Sounding, Chengdu 610225, Sichuan, Peoples R China 4.Colorado State Univ, 1373 Campus Delivery, Ft Collins, CO 80523 USA
推荐引用方式 GB/T 7714	Shi, Zhao,Chen, Haonan,Chandrasekar, Venkatachalam,et al. Deployment and Performance of an X-Band Dual-Polarization Radar during the Southern China Monsoon Rainfall Experiment[J]. ATMOSPHERE,2018,9(1):20.
APA	Shi, Zhao,Chen, Haonan,Chandrasekar, Venkatachalam,&He, Jianxin.(2018).Deployment and Performance of an X-Band Dual-Polarization Radar during the Southern China Monsoon Rainfall Experiment.ATMOSPHERE,9(1),20.
MLA	Shi, Zhao,et al."Deployment and Performance of an X-Band Dual-Polarization Radar during the Southern China Monsoon Rainfall Experiment".ATMOSPHERE 9.1(2018):20.