Latitudinal Variation of the Relationship of Ionospheric Slab Thickness with the Height of the Peak Electron Density of F2 Layer

Ökten M. B. , Can Z.

Space Weather Workshop 2022,UCAR/NOAA/NASA/NSF, Colorado, United States Of America, 26 - 28 April 2022, pp.17-18

  • Publication Type: Conference Paper / Summary Text
  • City: Colorado
  • Country: United States Of America
  • Page Numbers: pp.17-18


The Earth's ionosphere, a natural plasma, is formed by extreme ultraviolet radiation from the Sun and particle precipitation and is affected by time, season, latitude, and geomagnetic storms. The ratio of the total electron content (TEC) to the peak electron density (NmF2) of the F2 layer is called ionospheric slab thickness (τ), which is affected by various ionospheric parameters, gives us the variation in the vertical direction of the ionosphere. In this study, with ionosondes with URSI codes IF843, PA836, BC840, AU930, PRJ18, and BVJ03 located at the equatorial latitudes of the Northern and Southern Hemispheres of North and South America, the τ change between 1-14 February 2022 by dividing the TEC by NmF2 was investigated locally. By comparing τ with the peak height of the F2 layer (hmF2), two clusters were detected around two different 12-hour curves that varied from region to region. It was found that the correlation between them was higher during the day and weaker at night. By calculating the angle between the curves, the diurnal variation of the relationship between τ and hmF2 in that region is shown, and it is seen that the angle difference increases from the equator to higher latitudes. Developing this research to cover all latitudes on Earth and a longer period will improve our understanding of space weather.