Monitoring of small-scale ionospheric heterogeneities using local GPS network
文献类型：期刊论文
| 作者 | Zhu, WY; Zhang, HP; Huang, C ; Jin, SG
|
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2004-11-01 |
| 卷号 | 47期号:6页码:941-948 |
| 关键词 | GPS Total Electron Content(TEC) diffusion equation ionospheric heterogeneity |
| 英文摘要 | Based on the high spatio-temporal resolution GPS dual-frequency data provided by Shanghai GPS Comprehensive Application Network, an ionospheric heterogeneity and its process of arising and disappearing were monitored and studied. First, Kalman Filter is used to improve the accuracy of DeltaP(2)P(1), and the hardware delay of GPS system is estimated by the least square method. Then according to the single layer model (SLM) of the ionosphere and the altitude of the SLM shell, the accurate positions of GPS satellites and receivers, and the observations of dual-frequency, the ionosphere pierce points' (IPPs') location and their Total Electron Content(TEC) are obtained, then the contour maps of TEC are derived using the interpolating technique. The variations of TEC reflected by these maps as time goes indicate that due to the turbulent flow of the atmosphere, an ionospheric heterogeneity, whose scale is about 50 kin and existence time 5 minutes, located at 38degreesN and 118degreesE came to being at 2003 - 09 - 08 - 01: 40 UTC. It diffused northeastward, which was caused by the upper air winds and geomagnetic field. After analysis with diffusion equation under 1976 U. S. standard atmosphere, we find that the heterogeneity appeared at the height of 350 km above the ground. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geochemistry & Geophysics |
| 研究领域[WOS] | Geochemistry & Geophysics |
| 关键词[WOS] | IRREGULARITIES ; PERTURBATIONS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000225447300001 |
| 源URL | [http://119.78.226.72/handle/331011/19322]  |
| 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.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, WY,Zhang, HP,Huang, C,et al. Monitoring of small-scale ionospheric heterogeneities using local GPS network[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2004,47(6):941-948. |
| APA | Zhu, WY,Zhang, HP,Huang, C,&Jin, SG.(2004).Monitoring of small-scale ionospheric heterogeneities using local GPS network.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,47(6),941-948. |
| MLA | Zhu, WY,et al."Monitoring of small-scale ionospheric heterogeneities using local GPS network".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 47.6(2004):941-948. |
入库方式： OAI收割
来源：上海天文台
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