Real time monitoring of PWV from SGCAN and its application test in numerical weather forecast
文献类型：期刊论文
| 作者 | Song, SL; Zhu, WY; Ding, JC; Liao, XH; Cheng, ZY; Ye, QX |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2004-07-01 |
| 卷号 | 47期号:4页码:631-638 |
| 关键词 | Shanghai GPS comprehensive and application network (SGCAN) precipitable water vapor (PWV) Meiyu season numerical weather forecast |
| 英文摘要 | GPS data from Shanghai GPS Comprehensive and Application Network(SGCAN) in the summer of 2002 are analyzed. The Ultra-rapid orbit of IGS(IGU) is used directly in real-time processing. Reliable Precipitable Water Vapor (PWV) series can be obtained with the assistant of remote stations. Considering the effect of ocean tide, the accuracy of PWV can be improved. The difference between GPS/PVFV and Radiosonde observations is about 2mm. Comparison between the outputs of MM5 and GPS/PWV shows that GPS can be regarded as one means to real-time check up the result of MM5 numerical prediction. Continuous GPS/PWV series in the whole Meiyu season reflects the changing processes of PWV in detail before and after the onset of the Meiyu Season in the Yangtz River Delta in 2002 summer. The variations of GPS/PWV show that the onset of the Meiyu season was from southwest to northeast and completed in about 7 similar to 8 hours. The rainband moved back and forth among the Yangtz River Delta, Huaihe area and the south to the Yangtz river area in the Meiyu season. The statistics of PWV peaks and one-hour rain explain some short-term forecast ability of GPS/PWV for rainstorms. The humidity condition of numerical forecast model is optimized after GPS/PWV being interpolated to the grids of the initial field using the Cressman method. The accuracy of numerical forecast is improved. One example is provided in this paper which shows the potential of GPS/PWV in improving numerical forecast. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geochemistry & Geophysics |
| 研究领域[WOS] | Geochemistry & Geophysics |
| 关键词[WOS] | PRECIPITABLE WATER ; VAPOR ; GPS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000222988300013 |
| 源URL | [http://119.78.226.72/handle/331011/18328]  |
| 专题 | 上海天文台_天文地球动力学研究中心 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Shanghai Cent Weather Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, SL,Zhu, WY,Ding, JC,et al. Real time monitoring of PWV from SGCAN and its application test in numerical weather forecast[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2004,47(4):631-638. |
| APA | Song, SL,Zhu, WY,Ding, JC,Liao, XH,Cheng, ZY,&Ye, QX.(2004).Real time monitoring of PWV from SGCAN and its application test in numerical weather forecast.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,47(4),631-638. |
| MLA | Song, SL,et al."Real time monitoring of PWV from SGCAN and its application test in numerical weather forecast".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 47.4(2004):631-638. |
入库方式： OAI收割
来源：上海天文台
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