AUTHOR=Verkhoglyadova Olga , Meng Xing , Kosberg Jacob TITLE=Understanding Large-Scale Structure in Global Ionospheric Maps With Visual and Statistical Analyses JOURNAL=Frontiers in Astronomy and Space Sciences VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2022.852222 DOI=10.3389/fspas.2022.852222 ISSN=2296-987X ABSTRACT=

We applied two different techniques to identify high-density structures in global maps of height-integrated electron density of the Earth’s ionosphere. We discuss benefits and limitations of these approaches to structure identification. We suggest that they are complementary and can aid our understanding of the properties of the global ionosphere. We stress out importance of a consistent definition of large-scale ionospheric structures.