Climatology of medium‐scale traveling ionospheric disturbances observed by a GPS network in central China
Climatology of medium‐scale traveling ionospheric disturbances observed by a GPS network in central China
复制标题
中国中部地区GPS网络观测到的中尺度移动电离层扰动的气候学
DOI：
10.1029/2011ja016545
复制
发表时间：
2011-09
影响因子：
--
通讯作者：
Tao Yu
中科院分区：
文献类型：
--
作者：
Feng Ding;Weixing Wan;Guirong Xu;Tao Yu
[1] 利用中国中部一个密集的全球定位系统（GPS）接收器阵列的观测数据，构建了太阳活动极小期期间中尺度行扰电离层（MSTIDs）15个月的气候学特征。总共识别出793个MSTID事件，且……
The 15‐month climatology of medium‐scale traveling ionospheric disturbances (MSTIDs) during a solar minimum period has been constructed from observations of a dense GPS receiver array in Central China. In total, 793 MSTID events are identified, with peaks in occurrence at 1500 LT and 0100 LT. The occurrence of MSTIDs decreases following an increase in geomagnetic activity, with 46% of the MSTIDS occurring in the daytime. Daytime MSTIDs are characterized by a major occurrence maximum around the winter solstice and by an equatorward propagation direction. The period, phase velocity, azimuth, and amplitude of daytime MSTIDs are 20–60 min, 100–400 m/s, 130°–270°, and 0.8–1.5%, respectively. The remaining 54% of the MSTIDs occurred at night, and were characterized by a peak in occurrence at the summer solstice and by a southwestward propagation direction. The period, phase velocity, azimuth, and amplitude of nighttime MSTIDs are 20–70 min, 50–230 m/s, 170°–300°, and 2–7%, respectively. The propagation directions and the seasonal behaviors support the view that daytime MSTIDs are an ionospheric manifestation of atmospheric gravity waves from the lower atmosphere, while a possible excitation mechanism of nighttime MSTIDs is the electrodynamics process caused by plasma instability in the F layer.
登录
查看更多内容
影响因子：
5.2
作者：
W. Wan;Hong Yuan;B. Ning;Jun Liang;F. Ding
通讯作者：
W. Wan;Hong Yuan;B. Ning;Jun Liang;F. Ding
DOI：
10.1016/s0021-9169(68)80029-7
发表时间：
1968-01-01
期刊：
JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS
影响因子：
--
作者：
GEORGES, TM
通讯作者：
GEORGES, TM
影响因子：
1.6
作者：
Wayne H. Pinger
通讯作者：
Wayne H. Pinger
DOI：
10.1016/0021-9169(78)90067-3
发表时间：
1978-10
影响因子：
1.9
作者：
F. Bertin;J. Testud;L. Kersley;P. Rees
通讯作者：
F. Bertin;J. Testud;L. Kersley;P. Rees
影响因子：
--
作者：
I. Seker;S. Fung;J. Mathews
通讯作者：
I. Seker;S. Fung;J. Mathews