Attila Buzás

Radio‐Quiet Ionosonde Observations for Monitoring Absorption in the HF Band

Tobias G. W. Verhulst, Attila Buzás, David Altadill, Antoni Segarra et autres

Abstract This work presents a technique to monitor ionospheric absorption in the HF radio band using ionosondes. For this purpose, the ionosondes were run in a radio‐silent mode, recording not reflections of their own emitted signals but oblique signals from transmitters of …

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Radio-quiet ionosonde observations for monitoring absorption in the HF band - manuscript software appendix

Attila Buzás, Tobias G. W. Verhulst, David Altadill, Antoni Segarra et autres

This work presents a technique to monitor ionospheric absorption in the HF radio band using ionosondes. For this purpose, the ionosondes were run in a radio-silent mode, recording not re ections of their own emitted signals but oblique signals from transmitters of …

hu, be, es (code pays fourni par la source)

Radio-quiet ionosonde observations for monitoring absorption in the HF band - manuscript software appendix

Attila Buzás, Tobias G. W. Verhulst, David Altadill, Antoni Segarra et autres

This work presents a technique to monitor ionospheric absorption in the HF radio band using ionosondes. For this purpose, the ionosondes were run in a radio-silent mode, recording not re ections of their own emitted signals but oblique signals from transmitters of …

hu, be, es (code pays fourni par la source)

Ionospheric Response to Solar Flares at Mid-Latitudes During Geomagnetically Quiet Periods Based on Pruhonice Ionosonde Data 2023–2024

Julia Erdey, Attila Buzás, János Lichtenberger, Veronika Barta

The ionosphere is the ionized region of the atmosphere, extending roughly from 60 km to 1000 km in altitude. During flares, the near-Earth space is subjected to high-energy X-ray and EUV (extreme ultraviolet radiation) radiation, which also impacts the ionosphere. The changes …

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The Impact of Solar Flares on the Ionosphere During Geomagnetically Quiet Periods

Julia Erdey, Veronika Barta, Attila Buzás, János Lichtenberger

The ionosphere is the ionized region of the atmosphere extending from 50 km to 1000 km. During solar flares, the near-Earth space environment is subjected to enhanced high-energy X-ray and EUV radiation, which significantly impacts ionospheric conditions. Variations in ionospheric parameters measured …

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Ionospheric absorption variation during the Mother Day Superstorm in May 2024 as observed by different types of ionosonde data

Veronika Barta, Tobias G. W. Verhulst, David Altadill, Zbyšek Mošna et autres

Space weather events such as solar flares and energetic particle events cause enhanced absorption of radio waves in the lower ionosphere, posing difficulties to radio communication at certain frequencies. Increases in ionospheric absorption are due to enhancement of the ionisation in the …

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Környezeti folyamatok elektromos kölcsönhatásrendszerének vizsgálata a földkörüli térségben légköri elektromos potenciálgradiens mérések alapján

Attila Buzás

Subauroral and Auroral Conditions in the Mid- and Low-Midlatitude Ionosphere over Europe During the May 2024 Mother’s Day Superstorm

Kitti Alexandra Berényi, Veronika Barta, Csilla Szárnya, Attila Buzás et autres

This study focuses on the mid- and low-midlatitude ionospheric response to the 2024 Mother’s Day superstorm, utilizing ground-based and Swarm satellite observations. The ground-based ionosonde measured F1, F2-layer, B0 and B1 parameters, as well as isodensity data, were used. The ionospheric absorption …

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Subauroral and Auroral Conditions in the Mid- and Low-Midlatitude Ionosphere over Europe During the May 2024 Mother’s Day Superstorm

Kitti Alexandra Berényi, Veronika Barta, Csilla Szárnya, Attila Buzás et autres

This study focuses on the mid- and low-midlatitude ionospheric response to the 2024 Mother’s Day superstorm, utilizing ground-based and Swarm satellite observations. The ground-based ionosonde measured F1, F2-layer, B0 and B1 parameters as well as isodensity data were used. The ionospheric absorption …

hu (code pays fourni par la source)

Impact of Solar Flares on the Ionosphere During Geomagnetically Quiet Periods Based on Ionosonde Data

Julia Erdey, Attila Buzás, Veronika Barta

The ionosphere is the ionized region of the atmosphere extending from 50 km to 1000 km. During flares, the Earth’s surrounding space is subjected to high-energy X-ray and EUV radiation, which also impacts the ionosphere. The changes of the ionospheric parameters measured …

hu (code pays fourni par la source)

Measuring ionospheric absorption based on received ionosonde amplitudes using sounding frequencies above 10 MHz – preliminary results

Attila Buzás, Tobias G. W. Verhulst, Veronika Barta

The ionosphere consists of various ionised layers in Earth’s upper atmosphere, located roughly between 60 and 1000 km. Space weather events like solar flares cause enhanced absorption of radio waves in the ionosphere most notably in the lowest part of it, the …

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Multi-instrument analysis of medium-scale travelling ionospheric disturbances generated by an intense tropospheric jet-front system with severe convection in Europe in August 2023

Veronika Barta, Kateřina Potužníková, Petra Koucká Knížová, Jaroslav Chum et autres

Tropospheric jet-front systems and intense convection are known to be potential sources of atmospheric gravity waves (AGWs), which can propagate upward. When AGWs reach the height of the coupled thermosphere-ionosphere system, they interact with the ionised medium and cause wave-like oscillations known …

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