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Impact of solar activity on

ionospheric dynamics and high-energy particle fluxes over

Antarctica

Presenter: Assistant Professor, Dr. Eng. Ivaylo Nachev, Technical University - Sofia

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The Team

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  • Study of the impact of solar flares on the Ionosphere;
  • Direct studies of solar activity with a radiometer;
  • Measurement of the magnetic field with a three-vector magnetometer;
  • Measurement of the level of cosmic particles and the radiation background on the territory of the BAB;
  • Measurement of the impact of solar flares in the Ionophore using the VLF method during the journey of NIC421 from the port of Varna to Livingston Island and back;

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Preparation

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Installation on research vessel board

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Study of the impact of solar flares on the Ionosphere

  • Survey during solar maximum;
  • Surveyed routes 20,000 km;
  • 62 days of continuous observations (for the period after 17.02.2025, assisted by the BAI logistics team);

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Study of the impact of solar flares on the Ionosphere

C 4

M 4

C 1.4

C 1.9

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Study of the impact of solar flares on the Ionosphere

C 1.1

C 1.2

C 3.7

C 1.1

C 1.2

C 3.7

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Measurement of the magnetic field with a three-vector magnetometer

  • 45 days of continuous monitoring;
  • Validation of the data
  • regional monitoring;
  • - local changes.

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Validation of the data

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Direct studies of solar activity with a radiometer;

  • 45 continuous observations,
  • with a day duration of up to over 17 hours;due
  • to the lack of activity in the radio spectrum - extremely clean data and clearly distinguishable events

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Capturing solar flares II and III through the system used

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Measuring cosmic particles

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