Study of Different Attenuation Correction Methods in Association with Rainfall Estimation for X-Band Polarimetric Radars
文献类型：期刊论文
| 作者 | Hu Zhiqun1,2; Liu Liping1; Chu Rongzhong3; Jin Ronghua4 |
| 刊名 | ACTA METEOROLOGICA SINICA
 |
| 出版日期 | 2010-10-01 |
| 卷号 | 24期号:5页码:602-613 |
| 关键词 | X band dual linear polarimetric radar attenuation correction rainfall estimation Z(H)-K(DP) method Z(H)-K(DP)-R method |
| ISSN号 | 0894-0525 |
| 通讯作者 | Hu Zhiqun() |
| 英文摘要 | Different attenuation correction methods for the X band dual linear polarimetric radar are analyzed in this paper The specific differential phase shift K(DP) is always considered as an effective factor in radar signal attenuation correction However, the values of K(DP) for light rams are too small, which results in unstable quality and large errors of rainfall estimation Therefore, radar horizontal reflectivity Z(H) and specific differential phase shift are combined together in the Z(H)-K(DP) method to correct the attenuation error Based on the similar consideration, a Z(H)-K(DP)-R combined technique is also proposed to estimate rainfall (R) During the development and set up of the synchronous transmitting and receiving dual polarimetric Doppler weather radar with 3 2 cm wave length, a set. of observational data were obtained in the field experiment in Pingliang, Gansu Province in August 2005 Some continuous measurements with 5-12-minute Intervals were gained in the time period from 1508 to 2205 (Betting Time) 11 August 2005 Using the data, the performance of the combined attenuation correction and rainfall estimation methods is examined The results indicate that the Z(H)-K(DP) combined method is effective and the correction speed meets the requirement of real-time operations The analysis of the precipitation process shows that. the Z(H)-K(DP)-R, combined technique is more suitable for rainfall estimation than single factor methods such as the K(DP)-R. or Z-R relation, and the, estimated results are in good agreement with automatic rain gauge records As to the Z-R relation, the deviation between the precipitation estimation and the available gauge measurement decreases obviously when the corrected Z(H) is used, indicating that the radar data quality has been obviously Improved after the attenuation correction |
| 收录类别 | SCI |
| WOS关键词 | WEATHER RADAR ; PHASE ; REFLECTIVITY |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000285072000009 |
| 出版者 | ACTA METEOROLOGICA SINICA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556299 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Hu Zhiqun |
| 作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Nanjing 210044, Peoples R China 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 4.Natl Meteorol Ctr, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu Zhiqun,Liu Liping,Chu Rongzhong,et al. Study of Different Attenuation Correction Methods in Association with Rainfall Estimation for X-Band Polarimetric Radars[J]. ACTA METEOROLOGICA SINICA,2010,24(5):602-613. |
| APA | Hu Zhiqun,Liu Liping,Chu Rongzhong,&Jin Ronghua.(2010).Study of Different Attenuation Correction Methods in Association with Rainfall Estimation for X-Band Polarimetric Radars.ACTA METEOROLOGICA SINICA,24(5),602-613. |
| MLA | Hu Zhiqun,et al."Study of Different Attenuation Correction Methods in Association with Rainfall Estimation for X-Band Polarimetric Radars".ACTA METEOROLOGICA SINICA 24.5(2010):602-613. |
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来源：寒区旱区环境与工程研究所
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