[PDF] Top 20 Longitudinal variation of equatorial electrojet and the occurrence of its counter electrojet
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Longitudinal variation of equatorial electrojet and the occurrence of its counter electrojet
... the longitudinal variability of the equatorial electrojet (EEJ) and the occurrence of its counter electrojet (CEJ) using the available records of the horizon- tal ... See full document
11
Local time dependence of the equatorial counter electrojet effect in a narrow longitudinal belt
... the equatorial counter electrojet phenomena at Trivandrum and Addis Ababa is discussed during these local time ...time occurrence behaviour of CEJ events over the ...diurnal variation ... See full document
11
ANGEO - Meridional equatorial electrojet current in the American sector
... of counter electrojet and therefore the electric ®eld would be westward on many occasions during dawn period (Rastogi) et ...daily occurrence of spread F irregularities during the southern solstice ... See full document
11
Longitudinal, seasonal and solar cycle variation in lunar tide influence on the equatorial electrojet
... few equatorial sites that have data records for quite a long ...using equatorial mag- netometers could provide a direct measure of the ...Thus, equatorial stations respond primar- ily to the EEJ, ... See full document
9
Evidence of short spatial variability of the equatorial electrojet at close longitudinal separation
... The noontime EEJ strength shows a smooth decrease in D-season up to December and a gradual increase from January, approaching the equinoctial maximum of daily variation (Figure 6). Global averaged current ... See full document
15
The longitudinal variability of equatorial electrojet and vertical drift velocity in the African and American sectors
... different longitudinal sectors which are given at the right side of each ...the longitudinal but also diurnal and temporal vari- ability of the EEJ and E × B drift distribution as shown in ...all ... See full document
8
The field of the equatorial electrojet from CHAMP data
... the equatorial electrojet field at all local times and all universal ...seasonal variation of the electrojet, its evolution with the solar cycle, and the effect of geomagnetic activity ... See full document
13
Numerical modeling of the equatorial electrojet UT-variation on the basis of the model GSM TIP
... UT variation of the ionospheric param- eters are connected with the mismatch of the axis of the ge- omagnetic dipole with the geographic axis of the Earth rota- ...of longitudinal variations the pres- ence ... See full document
8
Counter equatorial electrojet and overshielding after substorm onset: Global MHD simulation study
... both the Region 1 and Region 2 FACs increase after onset. The intensity of the Region 1 FAC always dominates that of the Region 2 FAC. We do not focus on the evolution of the substorm since this has already been reported ... See full document
17
Statistical analysis of the correlation between the equatorial electrojet and the occurrence of the equatorial ionisation anomaly over the East African sector
... latitudinal variation of TEC in the previous studies indicates the existence of an equatorial anomaly in TEC, in its latitudinal variation, simi- lar to the one in F2 region critical ...of ... See full document
13
Equatorial electrojet studies from rocket and ground measurements
... cycle variation of the electrojet current is primarily due to the variations of N m E, and not due to the variations of electric ...diurnal variation of the electric field with peak at 09–10 LT ... See full document
10
A study of local time and longitudinal variability of the amplitude of the equatorial electrojet observed in POGO satellite data
... time variation model compares favorably with the models presented by Gupta and Chapman (1970) and Doumouya et ...the variation of the EE with respect to the longitude from the variation with respect ... See full document
10
ANGEO - Morphological aspects of a new type of counter electrojet event
... A list of these stations, together with the parameters of the geomagnetic ®eld, are in Table 1. Data and analyses In Fig.1. are shown the daily variations of the horizontal H ®eld at each of the stations in Indo-USSR ... See full document
10
The complete spectrum of the equatorial electrojet related to solar tides: CHAMP observations
... annual variation with large amplitudes during December solstice and equinox seasons but a depres- sion by a factor of ...four-peaked longitudinal pattern around ...three-peaked longitudinal pattern, ... See full document
17
Improving and testing the empirical equatorial electrojet model with CHAMP satellite data
... the longitudinal profile of EEJ, obtained earlier by Doumouya et ...ground-based variation of EEJ 1H peak values around ...the longitudinal variability in EEJ. However, the compassion of ... See full document
11
Day-to-day correlation of equatorial electrojet at two stations separated by 2000 km
... the equatorial stations were made in India (Pramanik and Yagna Narayan, 1952) and in Nigeria (Onwumechilli, ...additional electrojet stations during IGY enabled Rastogi (1962) to identify a significant ... See full document
6
ANGEO - Equatorial electrojet at African longitudes: first results from magnetic measurements
... diurnal variation (S R ) obtained from the hourly mean values of H, D, Z ...diurnal variation of the H component is observed to present the same shape in every ...reaches its maximum around noon, and ... See full document
19
Day-to-day variability of equatorial electrojet and its role on the day-to-day characteristics of the equatorial ionization anomaly over the Indian and Brazilian sectors
... the equatorial electrojet is stronger during day time from 08:00 to 16:00 LT with maximum values during equinoctial ...diurnal variation of EEJ can be seen from these mass plots. Counter ... See full document
15
Solar flare effects on the geomagnetic elements during normal and counter electrojet periods
... to its peak on the magne- togram) are scaled in H , Y and Z fields and are denoted as H f , Y f and Z f ...the equatorial and low latitude stations and slightly positive at higher latitude ...at ... See full document
11
The equatorial electrojet during geomagnetic storms and substorms
... arranging equatorial electrojet perturbations with respect to the time for the minimum ...disturbance electrojet develops as the storm intensifies, and it persists for approximately 24 h during the ... See full document
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