2009
DOI: 10.1029/2009ja014072
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Latitudinal dependence of the ionospheric response to solar eclipses

Abstract: [1] In this study, we statistically analyze the latitudinal dependence of F2-layer peak electron densities (NmF2) and total electron content (TEC) responses to solar eclipses by using the ionosonde observations during 15 eclipse events from 1973 to 2006 and the GPS TEC observations during six solar eclipse events from 1999 to 2006. We carried out a model study on the latitudinal dependence of eclipse effects on the ionosphere by running a theoretical ionospheric model with the total eclipse occurring at 13 lat… Show more

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Cited by 75 publications
(80 citation statements)
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References 42 publications
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“…As the eclipse progressed, h F2 decreased and it followed the same pattern as that of control days. On the eclipse day, the observed variations in hmF2 do not show large enhancement as expected from modeling studies (Le et al, 2009), although a slight increase in hmF2 was observed for the eclipse duration. In a simulation study, Le et al (2008a) has shown that the equatorward/poleward wind pushes hmF2 upward/downward suggesting that wind direction to be poleward on this particular day.…”
Section: F2 Layersupporting
confidence: 57%
See 1 more Smart Citation
“…As the eclipse progressed, h F2 decreased and it followed the same pattern as that of control days. On the eclipse day, the observed variations in hmF2 do not show large enhancement as expected from modeling studies (Le et al, 2009), although a slight increase in hmF2 was observed for the eclipse duration. In a simulation study, Le et al (2008a) has shown that the equatorward/poleward wind pushes hmF2 upward/downward suggesting that wind direction to be poleward on this particular day.…”
Section: F2 Layersupporting
confidence: 57%
“…Skinner (1967) and Adeniyi et al (2007) have shown 50-70 % variation in hmF2 during solar eclipse. From modeling studies, considerable amount of enhancement in the hmF2 is expected on the eclipse day as compared to the control days (Le et al, 2009). But the observed hmF2 does not show much enhancement.…”
Section: F2 Layermentioning
confidence: 99%
“…Since most solar eclipses occur in mid-and low latitudes (e.g., Jakowski et al 1983Jakowski et al , 2001Jakowski et al , 2008Cheng et al 1992;Fritts & Luo 1993;Mueller-Wodarg et al 1998;Krankowski et al 2008;Le et al 2008Le et al , 2009Le et al , 2010, the number of publications considering high-latitude eclipses is rather low (e.g., Rashid et al 2006;Pitout et al 2013). Le et al (2009) investigated the latitudinal dependence of the ionospheric response to solar eclipses and found that eclipse effects are larger at middle latitudes than at low latitudes.…”
Section: Introductionmentioning
confidence: 99%
“…Le et al (2009) investigated the latitudinal dependence of the ionospheric response to solar eclipses and found that eclipse effects are larger at middle latitudes than at low latitudes. However, above 40°N latitude, the eclipse effect decreases with increasing latitude.…”
Section: Introductionmentioning
confidence: 99%
“…These temperature variations drive changes in pressures and winds (Ballard et al 1969;Anderson et al 1972;Founda et al 2007;Gerasopoulos et al 2007;Kameda et al 2009;Wang and Liu 2010), and induces vertically propagating gravity waves (e.g., Chimonas 1970;Chimonas and Hines 1971;Seykora et al 1985;Zerefos et al 2007). Solar eclipse also changes the ionosphere total electron density (Le et al 2009). Treumann et al (2008) described the physics of electric discharges in the atmospheric gases, and average altitude profiles of temperature and mass density from the surface to 150-km altitude.…”
Section: Introductionmentioning
confidence: 99%