Ionospheric electron content at midlatitudes near the minimum of the solar cycle

1969 ◽  
Vol 74 (19) ◽  
pp. 4661-4666 ◽  
Author(s):  
R. G. Merrill ◽  
R. S. Lawrence
Keyword(s):  
Solar Cycle ◽  
Electron Content ◽  
Ionospheric Electron Content

scholarly journals Ionospheric Electron Content During Solar Cycle 23

2018 ◽  
Vol 123 (6) ◽  
pp. 5223-5231 ◽  
Author(s):  
Stanley C. Solomon ◽  
Liying Qian ◽  
Anthony J. Mannucci
Keyword(s):  
Solar Cycle ◽  
Electron Content ◽  
Solar Cycle 23 ◽  
Ionospheric Electron Content

Low-Latitude Ionospheric Electron Content Measurements During Half a Solar Cycle

Radio Science ◽  
1969 ◽  
Vol 4 (9) ◽  
pp. 823-828 ◽  
Author(s):  
F. de Mendonça ◽  
I. J. Kantor ◽  
B. R. Clemesha
Keyword(s):  
Solar Cycle ◽  
Electron Content ◽  
Low Latitude ◽  
Ionospheric Electron Content

Nighttime enhancements in ionospheric electron content: seasonal and solar cycle variation

1995 ◽  
Vol 13 (3) ◽  
pp. 256-261 ◽  
Author(s):  
S. Jain ◽  
S. K. Vijay ◽  
A. K. Gwal ◽  
Y. N. Huang
Keyword(s):  
Solar Activity ◽  
Solar Cycle ◽  
Negative Correlation ◽  
Electron Content ◽  
Equatorial Anomaly ◽  
Low Latitude ◽  
Solar Cycle Variation ◽  
Latitude Station ◽  
Cycle Variation ◽  
Ionospheric Electron Content

Abstract. Various characteristics of anomalous nighttime enhancement in ionospheric electron content (IEC) at Lunping (14.08°N geomagnetic), a station near the crest of the equatorial anomaly, have been presented by considering the IEC data for the 21st solar cycle. Out of a total of 1053 enhancements, 354 occur in pre-midnight and 699 occur in post-midnight hours, which indicates an overall dominance of post-midnight events at Lunping. The occurrence is more frequent during summer, less during the equinox and least during winter months. All the characteristics of the enhancements have seasonal dependencies and they reach their maximum values during summer months. The occurrence of the pre-midnight events show positive and post-midnight events show negative correlation with solar activity. The results have been discussed and compared with those at low-latitude stations in India and Hawaii and at the mid-latitude station, Tokyo.

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