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TECs

TEC monitors data

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  • Icheon
  • Jeju
  • It indicates the Total Electron Content (TEC) in the ionosphere, as recorded by Icheon and Jeju stations. TEC is the measurement of the total number of electrons in the ionosphere along a ray path.
  • The TEC values increase during the day time and decrease at night; however, a temporary increase of the value is possible due to solar activities or geomagnetic storms.
  • The values can be used for precise calibration of navigation systems and applied to monitor ionospheric activity and storms.
  • Jeju Average VTEC Daily