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Coverage of China New Generation Weather Radar Network

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  • NSTL
  • Hindawi Publishing Group
The China Meteorological Administration has deployed the China New Generation Weather Radar (CINRAD) network for severe weather detection and to improve initial conditions for numerical weather prediction models. The CINRAD network consists of 217 radars comprising 123 S-band and 94 C-band radars over mainland China. In this paper, a high-resolution digital elevation model (DEM) and beam propagation simulations are used to compute radar beam blockage and evaluate the effective radar coverage over China. Results show that the radar coverage at a height of 1 km above ground level (AGL) is restricted in complex terrain regions. The effective coverage maps at heights of 2 km and 3 km AGL indicate that the Yangtze River Delta, the Pearl River Delta, and North China Plain have more overlapping radar coverage than other regions in China. Over eastern China, almost all areas can be sampled by more than 2 radars within 5 km above mean sea level (MSL), but the radars operating in Qinghai-Tibet Plateau still suffer from serious beam blockage caused by intervening terrain. Overall, the radars installed in western China suffer from much more severe beam blockage than those deployed in eastern China. Maps generated in this study will inform users of the CINRAD data of their limitations for use in precipitation estimation, as inputs to other weather and hydrological models, and for satellite validation studies.

CoverageGenerationWeather

Chao Min、Sheng Chen、Jonathan J. Gourley、Haonan Chen、Asi Zhang、Yong Huang、Chaoying Huang

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School of Atmospheric Sciences, Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Guangzhou 510275, China

NOAA/National Severe Storms Laboratory, Norman 73072, USA

Colorado State University, Fort Collins 80523, USA

Anhui Meteorological Bureau, Hefei 230061, China

Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Guangxi Teachers Education University, Nanning 530011, China

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2019

10.1155/2019/5789358

Advances in Meteorology

Advances in Meteorology

SCI
ISSN：1687-9309
年,卷(期)：2019.2019(Pt.3)
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