Effects of sporadic E-layer characteristics on spread-F generation in the nighttime ionosphere near a northern equatorial anomaly crest during solar minimum

2015 ◽  
Vol 128 ◽  
pp. 33-39 ◽  
Author(s):  
C.C. Lee ◽  
W.S. Chen
Keyword(s):  
Solar Minimum ◽  
Equatorial Anomaly ◽  
Spread F ◽  
Sporadic E Layer ◽  
Sporadic E

Equatorial spread F and sporadic E-layer connections during the Brazilian Conjugate Point Equatorial Experiment (COPEX)

2008 ◽  
Vol 70 (8-9) ◽  
pp. 1133-1143 ◽  
Author(s):  
Inez S. Batista ◽  
M.A. Abdu ◽  
A.J. Carrasco ◽  
B.W. Reinisch ◽  
E.R. de Paula ◽  
...  
Keyword(s):  
Conjugate Point ◽  
Equatorial Spread F ◽  
Spread F ◽  
Sporadic E Layer ◽  
Sporadic E

The Occurrence of Sporadic-E Layer over Equatorial Anomaly Crest Region Bhopal

2018 ◽  
Vol 58 (8) ◽  
pp. 1061-1066
Author(s):  
Hafsa Siddiqui ◽  
Varsha Kachneria ◽  
A. M. Aslam
Keyword(s):  
Equatorial Anomaly ◽  
Sporadic E Layer ◽  
Sporadic E

scholarly journals Observations of GPS ionospheric scintillations over Wuhan during geomagnetic storms

2006 ◽  
Vol 24 (6) ◽  
pp. 1581-1590 ◽  
Author(s):  
G. Li ◽  
B. Ning ◽  
W. Wan ◽  
B. Zhao
Keyword(s):  
Geomagnetic Storms ◽  
Equatorial Ionosphere ◽  
The Other ◽  
Small Scale ◽  
Plasma Drift ◽  
Equatorial Ionization Anomaly ◽  
Spread F ◽  
Ionospheric Scintillations ◽  
Sporadic E Layer ◽  
Sporadic E

Abstract. During the two geomagnetic storms which occurred on 1 October 2002 and 22 January 2004, the strong ionospheric scintillations of the GPS L1 band were observed at Wuhan station (30.6° N, 114.4° E, 45.8° Dip), which is situated near the northern crest of the equatorial ionosphere anomaly. We found that the intense scintillations were associated with the main phases of the storms and were co-located with the enhancement of the equatorial ionization anomaly (EIA); the co-existence of large- and small-scale irregularities at post-midnight was also found. The results may be relevant regarding the influence of the equatorial ionospheric eastward electric field during geomagnetic storms. On the other hand, GPS L1 band scintillations were not observed during the other two similar storms on 16 July 2003 and 20 November 2003. One of the reasons is probably that the sporadic E layer observed at the storms inhibited the generation of spread F by changing the Pedersen conductivity and suppressing the upward plasma drift.

scholarly journals Equatorial E Region Electric Fields and Sporadic E Layer Responses to the Recovery Phase of the November 2004 Geomagnetic Storm

2017 ◽  
Vol 122 (12) ◽  
pp. 12,517-12,533 ◽  
Author(s):  
J. Moro ◽  
L. C. A. Resende ◽  
C. M. Denardini ◽  
J. Xu ◽  
I. S. Batista ◽  
...  
Keyword(s):  
Geomagnetic Storm ◽  
Electric Fields ◽  
Recovery Phase ◽  
E Region ◽  
Sporadic E Layer ◽  
Sporadic E

scholarly journals Satellite traces, range spread-F occurrence, and gravity wave propagation at the southern anomaly crest

2010 ◽  
Vol 28 (5) ◽  
pp. 1133-1140 ◽  
Author(s):  
M. A. Cabrera ◽  
M. Pezzopane ◽  
E. Zuccheretti ◽  
R. G. Ezquer
Keyword(s):  
Wave Propagation ◽  
Gravity Wave ◽  
Electron Density ◽  
Equatorial Anomaly ◽  
Ionospheric Station ◽  
Spread F ◽  
Range Spread

Abstract. Range spread-F (RSF) and occurrence of "satellite" traces prior to RSF onset were studied at the southern peak of the ionospheric equatorial anomaly (EA). Ionograms recorded in September 2007 at the new ionospheric station of Tucumán, Argentina (26.9° S, 294.6° E, dip latitude 15.5° S), by the Advanced Ionospheric Sounder (AIS) developed at the Istituto Nazionale di Geofisica e Vulcanologia (INGV), were considered. Satellite traces (STs) are confirmed to be a necessary precursor to the appearance of an RSF trace on the ionograms. Moreover, an analysis of isoheight contours of electron density seems to suggest a relationship between RSF occurrence and gravity wave (GW) propagation.

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