Coordinated study of scintillations recorded by Chinese FY-2 geostationary meteorological satellite and VHF coherent radar observations over south china
Coordinated study of scintillations recorded by Chinese FY-2 geostationary meteorological satellite and VHF coherent radar observations over south china
复制标题
风云二号静止气象卫星闪烁与华南甚高频相干雷达观测协同研究
DOI：
10.1016/j.jastp.2016.06.012
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发表时间：
2016-09
影响因子：
1.9
通讯作者：
Xu, Jie
中科院分区：
文献类型：
--
作者：
Yu, Tao;Xia, Chunliang;Huang, Jiang;Xu, Jie
本文介绍了2011年和2012年春分月中国风云二号（FY-2）静止气象卫星（86.5°E）在广州（23.2°N，113.3°E，倾角18°N）的首次闪烁观测和三亚（18.3°N，109.6°E，倾角13°N）的VHF（47.5MHz）相干雷达同步观测结果。利用这些观测资料，对FY-2卫星传播路径上的L波段闪烁斑与华南地区3 m长的羽状不规则结构之间的关系进行了协调研究。统计结果表明，羽流和闪烁斑几乎是一一对应的。在案例研究中，通过比较闪烁和羽流的起始时间来估计不规则体的纬向漂移速度，发现不规则体以每秒几十米到一百米的速度向东漂移。从漂移速度和闪烁事件的持续时间的推导值，不规则补丁被发现有东西向的范围约几百公里。另一方面，闪烁并不总是在羽流出现之后发生，这可能是由于在较低高度发生的相关不规则现象未能到达卫星到地面链路所经过的电离层区域。此外，在FY-2链路上偶尔观测到微弱的涡旋，雷达后向散射图上没有任何羽流结构。
The first scintillation observations of Chinese FY-2 geostationary meteorological satellite (86.5°E) observed at Guangzhou (23.2°N, 113.3°E, dip 18°N) and simultaneous VHF (47.5 MHz) coherent radar measurements from Sanya (18.3°N, 109.6°E, dip 13°N) during equinoctial months of 2011 and 2012 have been presented here. The observations are used for a coordinated study for the relationship between the L-band scintillation patches on the propagation path of FY-2 satellite and the extended 3-m irregularity structures known as plumes over South China. The statistical results showed that the plumes and the scintillation patches have nearly a one-to-one correspondence. In case study, the zonal drift velocity of the irregularities was estimated by comparison of the onset times of the scintillation and plume and the irregularities were found to drift eastwards at a speed ranging about tens of meters to one hundred meters per second. From the derived value of drift speed and duration of scintillation events, the irregularity patches were found to have east-west extent about a few hundred kilometers. On the other hand, the scintillation did not always occur following the appearance of plume which might be due to the associated irregularities occurring at lower altitudes failing to reach the region of the ionosphere through which the satellite to ground link passes. In addition, weak scintillations were observed on FY-2 link without any plume structure on radar backscatter maps occasionally.
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影响因子：
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作者：
A. Gioda;Gabriel J Reyes-Rodríguez;G. Santos-Figueroa;J. Collett;S. Decesari;M. C. K. V. Ramos;Heleno J. C. Bezerra Netto;F. A. Neto;O. Mayol-Bracero
通讯作者：
A. Gioda;Gabriel J Reyes-Rodríguez;G. Santos-Figueroa;J. Collett;S. Decesari;M. C. K. V. Ramos;Heleno J. C. Bezerra Netto;F. A. Neto;O. Mayol-Bracero
DOI：
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发表时间：
1993-09
期刊：
--
影响因子：
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作者：
A. J. V. Dierendonck;J. Klobuchar;Q. Hua
通讯作者：
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影响因子：
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作者：
Liu Kangkang;Li Guozhu;Ning Baiqi;Hu Lianhuan;Li Hongke
通讯作者：
Li Hongke
DOI：
10.1016/j.jastp.2012.02.007
发表时间：
2012-05
影响因子：
1.9
作者：
R. Sridharan;M. Bagiya;S. Sunda
通讯作者：
R. Sridharan;M. Bagiya;S. Sunda
影响因子：
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作者：
J. Retterer
通讯作者：
J. Retterer