Coverage of China New Generation Weather Radar Network
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 ov...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2019/5789358 |
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| _version_ | 1849398984039202816 |
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| author | Chao Min Sheng Chen Jonathan J. Gourley Haonan Chen Asi Zhang Yong Huang Chaoying Huang |
| author_facet | Chao Min Sheng Chen Jonathan J. Gourley Haonan Chen Asi Zhang Yong Huang Chaoying Huang |
| author_sort | Chao Min |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-a409db172f8748aebaad1db68198a8a6 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-a409db172f8748aebaad1db68198a8a62025-08-20T03:38:26ZengWileyAdvances in Meteorology1687-93091687-93172019-01-01201910.1155/2019/57893585789358Coverage of China New Generation Weather Radar NetworkChao Min0Sheng Chen1Jonathan J. Gourley2Haonan Chen3Asi Zhang4Yong Huang5Chaoying Huang6School of Atmospheric Sciences, Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Atmospheric Sciences, Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Guangzhou 510275, ChinaNOAA/National Severe Storms Laboratory, Norman 73072, USAColorado State University, Fort Collins 80523, USASchool of Atmospheric Sciences, Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Guangzhou 510275, ChinaAnhui Meteorological Bureau, Hefei 230061, ChinaKey Laboratory of Environment Change and Resources Use in Beibu Gulf, Guangxi Teachers Education University, Nanning 530011, ChinaThe 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.http://dx.doi.org/10.1155/2019/5789358 |
| spellingShingle | Chao Min Sheng Chen Jonathan J. Gourley Haonan Chen Asi Zhang Yong Huang Chaoying Huang Coverage of China New Generation Weather Radar Network Advances in Meteorology |
| title | Coverage of China New Generation Weather Radar Network |
| title_full | Coverage of China New Generation Weather Radar Network |
| title_fullStr | Coverage of China New Generation Weather Radar Network |
| title_full_unstemmed | Coverage of China New Generation Weather Radar Network |
| title_short | Coverage of China New Generation Weather Radar Network |
| title_sort | coverage of china new generation weather radar network |
| url | http://dx.doi.org/10.1155/2019/5789358 |
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