{
  "abstract": "This study provides the first observational evidence that E-F region electrodynamic coupling regulates the southernmost latitudinal extent of nighttime mid-latitude medium-scale traveling ionospheric disturbances (MSTIDs) over the Indian subcontinent. We have analyzed multiple MSTID events using total electron content (TEC) measurements from a dense network of dual-frequency GNSS receivers across India, GNSS radio occultation (RO) profiles, and ionosonde observations from New Delhi during May-July 2025, a high solar activity period. The lowest geographic latitude, at which MSTIDs wavefronts reached, varied between 17°N and 25°N. Their low-latitude extension showed no significant correlation with background TEC, but was positively correlated with the geomagnetically mapped southernmost latitude of sporadic-E (Es) layers identified from GNSS-RO measurements. These events occurred during high solar activity, when F-region MSTID growth is generally suppressed. Therefore, our results suggest that electrodynamic coupling with the underlying Es-layers is essential for sustaining MSTIDs and enabling their low-latitude penetration during solar maxima.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.09310",
  "author_total": 8,
  "authors": [
    {
      "name": "Jeevan Upadhyaya"
    },
    {
      "name": "Dipjyoti Patgiri"
    },
    {
      "name": "Mehta Harsh Jayeshkumar"
    },
    {
      "name": "Rahul Rathi"
    },
    {
      "name": "Virendra Yadav"
    },
    {
      "name": "Satarupa Chakrabarti"
    },
    {
      "name": "Arun K. Upadhayaya"
    },
    {
      "name": "Sumanta Sarkhel"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/29jke4e6adt39.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.09310",
  "fulltext_url": null,
  "id": "29jke4e6adt39",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.09310",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.space-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.09310",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/29jke4e6adt39.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T06:21:04Z",
      "native_id": "2611.09310",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.09310"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:physics.space-ph",
      "subfield": "stellar"
    }
  ],
  "title": "Role of E-F Coupling on Low-latitude Ingression of Mid-latitude MSTIDs over the Indian Subcontinent",
  "title_text": "Role of E-F Coupling on Low-latitude Ingression of Mid-latitude MSTIDs over the Indian Subcontinent",
  "type": "preprint",
  "updated_at": "2026-11-10T06:21:04Z",
  "url": "https://research.draconitic.com/paper/29jke4e6adt39",
  "venue": "arXiv",
  "versions": []
}