@article{202409.1700, doi = {10.20944/preprints202409.1700.v1}, url = {https://doi.org/10.20944/preprints202409.1700.v1}, year = 2024, month = {September}, publisher = {Preprints}, author = {Veronika Barta and Tamás Bozóki and Dávid Péter Süle and Daniel Kouba and Jens Mielich and Tero Raita and Attila Buzás}, title = {Ionospheric Absorption Variation Based on Ionosonde and Riometer Data and the NOAA D-RAP Model over Europe During Intense Solar Flares in September, 2017}, journal = {Preprints} }