Spatial-Temporal Variability of Global GNSS-Derived Precipitable Water Vapor (1994-2020) and Climate Implications
文献类型：期刊论文
| 作者 | Ding, Junsheng1,2; Chen, Junping1,2,3; Tang, Wenjie1,2; Song, Ziyuan1,2 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 14期号:14页码:19 |
| 关键词 | precipitable water vapor (PWV) global navigation satellite system (GNSS) temporal and spatial variability radiosonde (RS) |
| DOI | 10.3390/rs14143493 |
| 英文摘要 | Precipitable water vapor (PWV) is an important component in the climate system and plays a pivotal role in the global water and energy cycles. Over the years, many approaches have been devised to accurately estimate the PWV. Among them, global navigation satellite systems (GNSS) have become one of the most promising and fastest-growing PWV acquisition methods because of its high accuracy, high temporal and spatial resolution, and ability to acquire PWV in all weather and in near real time. We compared GNSS-derived PWV with a 5 min resolution globally distributed over 14,000 stations from the Nevada Geodetic Laboratory (NGL) from 1994 to 2020 with global radiosonde (RS) data, temperature anomalies, and sea height variations. Then, we examined the temporal and spatial variability of the global PWV and analyzed its climate implications. On a global scale, the average bias and root mean square error (RMSE) between GNSS PWV and RS PWV were similar to 0.72 +/- 1.29 mm and similar to 2.56 +/- 1.13 mm, respectively. PWV decreased with increasing latitude, and the rate of this decrease slowed down at latitudes greater than 35 degrees, with standard deviation (STD) values reaching a maximum at latitudes less than 35 degrees. The global average linear trend was similar to 0.64 +/- 0.81 mm/decade and strongly correlated with temperature and sea height variations. For each 1 degrees C and 1 mm change, PWV increased by similar to 2.075 +/- 0.765 mm and similar to 0.015 +/- 0.005 mm, respectively. For the time scale, the PWV content peaked similar to 40 days after the maximum solar radiation of the year (the summer solstice), and the delay was similar to 40 days relative to the summer solstice. |
| WOS关键词 | MICROWAVE RADIOMETER ; GPS METEOROLOGY ; RADIOSONDE ; TRENDS ; DELAY ; CHINA |
| 资助项目 | Program of Shanghai Academic/Technology Research Leader[20XD1404500] ; National Natural Science Foundation of China[11673050] ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone[ZJ2018-ZD 009] ; National Key R&D Program of China[2018 YFB0504300] ; Key R&D Program of Guangdong province[2018 B030325001] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000831859300001 |
| 出版者 | MDPI |
| 资助机构 | Program of Shanghai Academic/Technology Research Leader ; Program of Shanghai Academic/Technology Research Leader ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; Program of Shanghai Academic/Technology Research Leader ; Program of Shanghai Academic/Technology Research Leader ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; Program of Shanghai Academic/Technology Research Leader ; Program of Shanghai Academic/Technology Research Leader ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; Program of Shanghai Academic/Technology Research Leader ; Program of Shanghai Academic/Technology Research Leader ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/87867]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Chen, Junping |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.Shanghai Key Lab Space Nav & Positioning Tech, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Junsheng,Chen, Junping,Tang, Wenjie,et al. Spatial-Temporal Variability of Global GNSS-Derived Precipitable Water Vapor (1994-2020) and Climate Implications[J]. REMOTE SENSING,2022,14(14):19. |
| APA | Ding, Junsheng,Chen, Junping,Tang, Wenjie,&Song, Ziyuan.(2022).Spatial-Temporal Variability of Global GNSS-Derived Precipitable Water Vapor (1994-2020) and Climate Implications.REMOTE SENSING,14(14),19. |
| MLA | Ding, Junsheng,et al."Spatial-Temporal Variability of Global GNSS-Derived Precipitable Water Vapor (1994-2020) and Climate Implications".REMOTE SENSING 14.14(2022):19. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。