Deployment and Performance of an X-Band Dual-Polarization Radar during the Southern China Monsoon Rainfall Experiment
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
University of Chinese Academy of Sciences, Beijing 100049, China
Key Laboratory of Atmospheric Sounding, Chengdu University of Information and Technology, Chengdu 610225, China
1373 Campus Delivery, Colorado State University, Fort Collins, CO 80523, USA
Author to whom correspondence should be addressed.
Received: 25 October 2017 / Revised: 23 December 2017 / Accepted: 24 December 2017 / Published: 26 December 2017
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
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
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
) and R
) relations are evaluated using national level rain gauge data and CINRAD-based rainfall estimation. The results show that both R
)- and R
)-based products agree well with the rain gauge observations and CINRAD estimation. The difference between
is not significant, although
shows slightly better performance than
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MDPI and ACS Style
Shi, Z.; Chen, H.; Chandrasekar, V.; He, J. Deployment and Performance of an X-Band Dual-Polarization Radar during the Southern China Monsoon Rainfall Experiment. Atmosphere 2018, 9, 4.
Shi Z, Chen H, Chandrasekar V, He J. Deployment and Performance of an X-Band Dual-Polarization Radar during the Southern China Monsoon Rainfall Experiment. Atmosphere. 2018; 9(1):4.
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, no. 1: 4.
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