Can CINRAD Radar With VCP-21 Mode Capture the Accumulated Rainfall Pattern and Intensity of Fast-Moving Storms?
文献类型：期刊论文
| 作者 | Yang, Zhida2,3; Qi, Youcun3; Zhang, Zhe1; Li, Donghuan3 |
| 刊名 | IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
 |
| 出版日期 | 2024 |
| 卷号 | 62页码:13 |
| ISSN号 | 0196-2892 |
| 关键词 | Doppler weather radar fast-moving storms interpolation methods radar quantitative precipitation estimation (QPE) |
| DOI | 10.1109/TGRS.2023.3347431 |
| 通讯作者 | Qi, Youcun(youcun.qi@igsnrr.ac.cn) ; Zhang, Zhe(zhangzhe@igsnrr.ac.cn) ; Li, Donghuan(lidh@igsnrr.ac.cn) |
| 英文摘要 | China New Generation Weather Radar (CINRAD) operated in volume coverage pattern 21 (VCP21) mode may miss important information about precipitation for storms that evolve rapidly and move fast due to its volume scanning interval (about 6 min). However, despite the rapid changes and fast movement of storms, according to the continuity equation, the pattern and location of storms are continuous in temporal and spatial. An attempt is made in this research to use interpolation to supplement the missing information about storm evolution and improve the radar quantitative precipitation estimation (QPE) quality. Three interpolation methods are used to supplement storm evolution information between scan intervals for two fast-moving storm events. In these events, weather radar using VCP-21 mode cannot capture storm evolution well. The results show that all of the three interpolation methods do enhance the accuracy of the radar QPE. However, the linear interpolation method only describes the linear variation of storms, and the optical flow method can consider the movement of the storm and has a significant improvement in capturing the rainfall area, yet it cannot delineate the variation in rainfall shape and intensity. The Bi-directional optical flow (BIO) can describe not only the storm movement, but also the change of intensity and pattern of storms. BIO can greatly enhance the accuracy of radar QPE among the three methods. This study suggests that the interpolation of fast-moving storms between two neighboring radar volume scans needs to take into account both intensity variation and precipitation movement. The application of the BIO method can significantly improve the accuracy of radar QPE, namely the rainfall intensity and pattern. |
| WOS关键词 | WSR-88D SCANNING STRATEGIES ; PARTIAL BEAM BLOCKAGE ; REAL-TIME ALGORITHM ; DIFFERENTIAL REFLECTIVITY ; PRECIPITATION ; CALIBRATION ; PRODUCT ; CLASSIFICATION ; ATTENUATION ; SATELLITE |
| 资助项目 | National Key Research and Development Project |
| WOS研究方向 | Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| WOS记录号 | WOS:001167445400004 |
| 资助机构 | National Key Research and Development Project |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/203242]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Qi, Youcun; Zhang, Zhe; Li, Donghuan |
| 作者单位 | 1.Shenzhen Natl Climate Observ, Shenzhen 518040, Peoples R China 2.Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Zhida,Qi, Youcun,Zhang, Zhe,et al. Can CINRAD Radar With VCP-21 Mode Capture the Accumulated Rainfall Pattern and Intensity of Fast-Moving Storms?[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2024,62:13. |
| APA | Yang, Zhida,Qi, Youcun,Zhang, Zhe,&Li, Donghuan.(2024).Can CINRAD Radar With VCP-21 Mode Capture the Accumulated Rainfall Pattern and Intensity of Fast-Moving Storms?.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,62,13. |
| MLA | Yang, Zhida,et al."Can CINRAD Radar With VCP-21 Mode Capture the Accumulated Rainfall Pattern and Intensity of Fast-Moving Storms?".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 62(2024):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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