| GPS/PWV在台风"玛莉亚"袭闽期间的变化特征研究 |
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| 引用本文： | 陈明东.GPS/PWV在台风"玛莉亚"袭闽期间的变化特征研究[J].测绘通报,2019,0(1):93-96,137. |
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| 作者姓名： | 陈明东 |
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| 作者单位： | 福建省测绘院,福建 福州,350003 |
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| 摘 要： | 可降水量（PWV）表征大气中的水汽含量，本文利用福建省卫星导航定位基准服务系统（FJCORS）的GPS观测资料反演得到可降水量（GPS/PWV），通过与实测的高精度探空PWV资料进行对比发现，其相关系数达到0.98，与探空结果具有较好的一致性；平均偏差在1.10 mm以内，表明GPS/PWV资料具有较高的精度。在此基础上分析2018年第8号台风“玛莉亚”登陆福建前后的GPS/PWV变化特征及其与实际降水量的关系，结果表明，GPS/PWV资料能够很好地反映台风期间水汽的时空动态传输过程，并与降水之间具有良好的对应关系。
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| 关 键 词： | GPS 可降水量 FJCORS 台风"玛莉亚" |
| 收稿时间： | 2018-10-17 |
| 修稿时间： | 2018-11-30 |
Study on the variation characteristics of GPS/PWV during the typhoon “Maria” landing in Fujian |
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| CHEN Mingdong.Study on the variation characteristics of GPS/PWV during the typhoon “Maria” landing in Fujian[J].Bulletin of Surveying and Mapping,2019,0(1):93-96,137. |
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| Authors: | CHEN Mingdong |
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| Institution: | Fujian Surveying and Mapping Institute, Fuzhou 350003, China |
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| Abstract: | Precipitable water vapor (PWV) is used to characterize the water vapor content in the atmosphere. This paper utilizes GPS observation data of Fujian continuously operating reference station (FJCORS) to obtain the precipitable water vapor (GPS/PWV). Comparing with the PWV obtained from high-precision sounding observation data, it shows that the correlation coefficient is 0.98, which means GPS/PWV has good consistency with sounding results. Meanwhile, the average deviation is less than 1.10 mm, indicating that GPS/PWV data has high precision. On the basis of the above, the variation characteristics of GPS/PWV of the No. 8 typhoon Marlia before and after landing in Fujian in 2018 and the relationship with actual precipitation are analyzed. The results show that GPS/PWV data can well reflect the spatiotemporal dynamic transmission process of water vapor during typhoon and has a good correspondence with precipitation. |
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| Keywords: | GPS precipitable water vapor Fujian continuously operating reference station (FJCORS) typhoon Maria |
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