Seasonal and secular positional variations at eight co-located GPS and VLBI stations
文献类型：期刊论文
| 作者 | Ding, XL; Zheng, DW; Dong, DN; Ma, C; Chen, YQ; Wang, GL |
| 刊名 | JOURNAL OF GEODESY
 |
| 出版日期 | 2005-06-01 |
| 卷号 | 79期号:1-3页码:71-81 |
| 关键词 | GPS VLBI station solution seasonal signals inter-annual variations |
| 英文摘要 | Time series of daily position solutions at eight co-located GPS and VLBI stations are used to assess the frequency features in the solutions over various time-scales. This study shows that there are seasonal and inter-annual signals in all three coordinate components of the GPS and VLBI solutions. The power and frequency of the signals vary with time, the station considered and the coordinate components, and between the GPS and VLBI solutions. In general, the magnitudes of the signals in the horizontal coordinate components (latitude and longitude) are weaker than those in the height component. The weighted means of the estimated annual amplitudes from the eight GPS stations are, respectively, 1.0, 0.8 and 3.6 mm for the latitude, longitude and height components, and are, respectively, 1.5, 0.7 and 2.2 mm for the VLBI solutions. The phases of the annual signals estimated from the GPS and VLBI solutions are consistent for most of the co-located stations. The seasonal signals estimated from the VLBI solutions are, in general, more stable than those estimated from the GPS solutions. Fluctuations at inter-annual time-scales are also found in the series. The inter-annual fluctuations are up to similar to 5 mm for the latitude and longitude components, and up to similar to 10 mm for the height component. The effects of the seasonal and inter-annual variations on the estimated linear rates of movement of the stations are also evaluated. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Geochemistry & Geophysics ; Remote Sensing |
| 研究领域[WOS] | Geochemistry & Geophysics ; Remote Sensing |
| 关键词[WOS] | DEFORMATION ; CAMPAIGNS ; MOTIONS ; SERIES ; SCALE ; SPACE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000229802600008 |
| 源URL | [http://119.78.226.72/handle/331011/19440]  |
| 专题 | 上海天文台_天文地球动力学研究中心 |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, Ctr Astrogeodynam Res, Shanghai 200030, Peoples R China 3.CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA 4.NASA, Goddard Space Flight Ctr, Space Geodesy Branch, Greenbelt, MD 20771 USA |
| 推荐引用方式 GB/T 7714 | Ding, XL,Zheng, DW,Dong, DN,et al. Seasonal and secular positional variations at eight co-located GPS and VLBI stations[J]. JOURNAL OF GEODESY,2005,79(1-3):71-81. |
| APA | Ding, XL,Zheng, DW,Dong, DN,Ma, C,Chen, YQ,&Wang, GL.(2005).Seasonal and secular positional variations at eight co-located GPS and VLBI stations.JOURNAL OF GEODESY,79(1-3),71-81. |
| MLA | Ding, XL,et al."Seasonal and secular positional variations at eight co-located GPS and VLBI stations".JOURNAL OF GEODESY 79.1-3(2005):71-81. |
入库方式： OAI收割
来源：上海天文台
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