Analysis of High-Latitude lonospheric Processes During HSS and CME-Induced Geomagnetic Storms

Tibor Durgonics, Attila Komjathy, Olga Verkhoglyadova, Per Høeg, Ashik Paul

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For the first time we compared ionospheric effects of HSS and CME-driven storms at high-latitudes. There were similarities and also differences observed in the development of the storms. (1) Both type of storms exhibited clear negative phase, which resulted in an increase of TOI-breaking-down into patches and a decrease in patch formation in general throughout the Greenland sector. The negative phase developed as the PCN-index started to increase indicated energy input into the polarcap. (2) The rate of PCN increase was clearly different for the two types of storms. (3) The impact of the physical processes responsible for the negative phase have less pronounced impact on the diurnal TEC variations than on patch formation. We also investigated and assessed storm influences on airborne navigation at high-latitudes in order to determine the possible cause of the radio communication disturbances. This effort may lead us to a better understanding of the phenomenon and might help develop communication hardware that is more resistant to such effects.
Original languageEnglish
Publication date2016
Number of pages1
Publication statusPublished - 2016
EventAGU FAll meeting 2016 - San Francisco, United States
Duration: 12 Dec 201616 Dec 2016


ConferenceAGU FAll meeting 2016
CountryUnited States
CitySan Francisco
Internet address

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