APM OpenIR  > 2011年以前论文发表(包括2011年)
Statistical analysis on spatial correlation of ionospheric day-to-day variability by using GPS and Incoherent Scatter Radar observations
Yue, X.; Wan, W.; Liu, L.; Mao, T.
2007
Source PublicationANNALES GEOPHYSICAE
Volume25Issue:8Pages:1815-1825
SubtypeArticle
AbstractIn this paper, the spatial correlations of ionospheric day-to-day variability are investigated by statistical analysis on GPS and Incoherent Scatter Radar observations. The meridional correlations show significant (>0.8) correlations in the latitudinal blocks of about 6 degrees size on average. Relative larger correlations of TEC's day-to-day variabilities can be found between magnetic conjugate points, which may be due to the geomagnetic conjugacy of several factors for the ionospheric day-to-day variability. The correlation coefficients between geomagnetic conjugate points have an obvious decrease around the sunrise and sunset time at the upper latitude (60 degrees) and their values are bigger between the winter and summer hemisphere than between the spring and autumn hemisphere. The time delay of sunrise (sunset) between magnetic conjugate points with a high dip latitude is a probable reason. Obvious latitude and local time variations of meridional correlation distance, latitude variations of zonal correlation distance, and altitude and local time variations of vertical correlation distance are detected. Furthermore, there are evident seasonal variations of meridional correlation distance at higher latitudes in the Northern Hemisphere and local time variations of zonal correlation distance at higher latitudes in the Southern Hemisphere. These variations can generally be interpreted by the variations of controlling factors, which may have different spatial scales. The influences of the occurrence of ionospheric storms could not be ignored. Further modeling and data analysis are needed to address this problem. We suggest that our results are useful in the specific modeling/forecasting of ionospheric variability and the constructing of a background covariance matrix in ionospheric data assimilation.
KeywordIonosphere Ionospheric Disturbances Modeling And Forecasting Solar Radiation And Cosmic Ray Effects
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordTOTAL ELECTRON-CONTENT ; GEOMAGNETIC-ACTIVITY ; DENSITY PROFILES ; F2-LAYER ; EQUATORIAL ; DEPENDENCE ; LATITUDE ; STORMS ; SOLAR
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS SubjectAstronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS IDWOS:000249979100010
Citation statistics
Cited Times:28[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.apm.ac.cn/handle/112942/7884
Collection2011年以前论文发表(包括2011年)
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yue, X.,Wan, W.,Liu, L.,et al. Statistical analysis on spatial correlation of ionospheric day-to-day variability by using GPS and Incoherent Scatter Radar observations[J]. ANNALES GEOPHYSICAE,2007,25(8):1815-1825.
APA Yue, X.,Wan, W.,Liu, L.,&Mao, T..(2007).Statistical analysis on spatial correlation of ionospheric day-to-day variability by using GPS and Incoherent Scatter Radar observations.ANNALES GEOPHYSICAE,25(8),1815-1825.
MLA Yue, X.,et al."Statistical analysis on spatial correlation of ionospheric day-to-day variability by using GPS and Incoherent Scatter Radar observations".ANNALES GEOPHYSICAE 25.8(2007):1815-1825.
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