A paper by Dr Lakshmi Narayanan, Assistant Professor, Environmental Studies, SIAS, titled Global response of low and mid-latitude ionosphere to the severe geomagnetic storm of April 2023 has been publishedin the Journal of Astrophysics and Astronomy. The paper is published as a part of the special issue ‘The evolution and space weather impact of coronal mass ejections’ organised following a workshop at Krea University in early 2024 that brought together scientists from India and the USA. This paper is a case study of an intense space weather event in the present solar cycle. A detailed investigation of response of low and midlatitude ionosphere to the geomagnetic storm generated by a coronal mass ejection was made in the study. Data from in-situ plasma density measurements made by European Space Agency’s Swarm satellite mission is used in the study. Interestingly, the findings reveal that conventional magnetic and space weather indices do not adequately predict the nature of the ionospheric response. This work also contributes to the ongoing ANRF EMITS project, highlighting its broader relevance to space weather research.
