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oai:recercat.cat:2117/3634402026-01-27T04:32:30Zcom_2072_1033col_2072_452950

Ionospheric storm scale index based on high time resolution UPC-IonSAT global ionospheric maps (IsUG) Liu, Qi Hernández Pajares, Manuel Lyu, Haixia Nishioka, Michi Yang, Heng Monte Moreno, Enrique Gulyaeva, Tamara L. Beniguel, Yannick Wilken, Volker Olivares Pulido, Germán Orús Pérez, Raul Universitat Politècnica de Catalunya. Doctorat en Ciència i Tecnologia Aeroespacials Universitat Politècnica de Catalunya. Departament de Matemàtiques Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions Universitat Politècnica de Catalunya. IonSAT - Grup de determinació Ionosfèrica i navegació per SAtèl·lit i sistemes Terrestres Universitat Politècnica de Catalunya. VEU - Grup de Tractament de la Parla Àrees temàtiques de la UPC::Aeronàutica i espai Ionosphere--Mathematical models Ionospheric forecasting Space environment Radio meteorology Ionosfera The ionospheric storms have adverse effects on the radio communications, satellite communications and also the Global Navigation Satellite Systems (GNSS) application. A new Ionospheric storm Scale from Universitat Politècnica de Catalunya (UPC) Global Ionosphere Map (GIM), IsUG, is introduced for characterizing the ionospheric state on a global scale. The IsUG is based on the Vertical Total Electron Content (VTEC) derived from the continuously computed UPC Quarter-of-an-hour time resolution Rapid GIM (UQRG), taking as reference the ones during the period 1997 to 2014. It is similar to the I-scale index previously introduced, although it was over Japan and based on raw GNSS data. The dependence of the VTEC on season, local time and geographical location at each grid point of UQRG is removed by normalizing (i.e., by substracting the mean and dividing by the corresponding standard deviation) the percentage deviation of hourly median VTEC. After validating IsUG versus I-scale, the IsUG distribution is presented and analyzed at global scale during a severe geomagnetic storm from 7 to 10 November 2004 as an example of the potentialities of the new index. The results suggest that the IsUG global map has a great potential for the scientific study of ionospheric storms from a global perspective and also for space weather warning considering the accuracy of the recently developed real-time GIMs. This research has been done under the partial support of the European Space Agency and European Commission funded eMON- ITOR/MoNEWIC (H2020-ESA-037) project and the European Commission funded PITHIA-NRF (H2020-IN- FRAIA-2018-2020 101007599) project. Peer Reviewed Postprint (published version) 2021-11 Article Liu, Q. [et al.]. Ionospheric storm scale index based on high time resolution UPC-IonSAT global ionospheric maps (IsUG). "Space weather: the international journal of research and applications", Novembre 2021, vol. 19, núm. 11. 1542-7390 https://hdl.handle.net/2117/363440 10.1029/2021SW002853 eng https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2021SW002853 info:eu-repo/grantAgreement/EC/H2020/101007599/EU/Plasmasphere Ionosphere Thermosphere Integrated Research Environment and Access services: a Network of Research Facilities/PITHIA-NRF emonitor http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Open Access Attribution-NonCommercial-NoDerivs 3.0 Spain application/pdf