{
  "abstract": "Ionospheric scintillation disrupts trans‐ionospheric radio signals and represents significant challenges for critical communication and navigation systems. Here we document that hot flow anomalies (HFAs), transient disturbances formed near Earth's bow shock, can contribute to scintillation near the cusp. We used coordinated multi‐instrument observations including GNSS receivers, SuperDARN, AMPERE, DMSP/SSUSI, MMS to link an upstream HFA to the scintillation in the polar ionosphere. During 10:47–10:57 UT on 19 November 2015, enhanced phase scintillation was observed, along with a convection vortex, enhanced field‐aligned currents (FACs) and nearby particle precipitation. An HFA and associated high‐speed jets (HSJs) were observed in the corresponding magnetic local time (MLT) region of the magnetosheath. Our analysis indicates that the HFA disturbs the magnetopause and enhances the FACs, causing the localized ionospheric density gradient instability, thereby triggering the ionospheric scintillation. These results show that the particle precipitation caused by HFAs can strongly affect the cusp plasma and trigger significant phase scintillation. Our results provided direct observational evidence that HFAs are a contributing source of polar space‐weather impacts on GNSS and radio systems.",
  "abstract_shown": true,
  "affiliations": [
    "Shandong Key Laboratory of Space Environment and Exploration Technology Institute of Space Sciences Shandong University Weihai China",
    "State Key Laboratory of Solar Activity and Space Weather National Space Science Center Chinese Academy of Sciences Beijing China",
    "Department of Physics and Technology University of Bergen Bergen Norway",
    "Arctic Geophysics University Centre in Svalbard Longyearbyen Norway",
    "State Key Laboratory of Solar Activity and Space Weather School of Aerospace Science Harbin Institute of Technology (Shenzhen) Shenzhen China",
    "School of Integrated Circuits Shandong University Jinan China",
    "National Key Laboratory of Deep Space Exploration/School of Earth and Space Sciences University of Science and Technology of China Hefei China"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 17,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Jia‐Chen Zhao"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Qing‐He Zhang",
      "orcid": "0000-0003-2429-4050"
    },
    {
      "affs": [
        1
      ],
      "name": "Zhong‐Wei Yang",
      "orcid": "0009-0004-5623-2852"
    },
    {
      "affs": [
        1
      ],
      "name": "Duan Zhang",
      "orcid": "0000-0003-4351-9032"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Kjellmar Oksavik",
      "orcid": "0000-0003-4312-6992"
    },
    {
      "affs": [
        4
      ],
      "name": "Bo‐Yi Wang",
      "orcid": "0000-0002-7904-1846"
    },
    {
      "affs": [
        0
      ],
      "name": "Yu‐Zhang Ma",
      "orcid": "0000-0001-5767-4346"
    },
    {
      "affs": [
        0
      ],
      "name": "Zan‐Yang Xing",
      "orcid": "0000-0001-5965-1017"
    },
    {
      "affs": [
        0
      ],
      "name": "Yong Wang",
      "orcid": "0000-0002-5853-8036"
    },
    {
      "affs": [
        0,
        5
      ],
      "name": "Ling‐Xin Zhao",
      "orcid": "0000-0001-9699-9389"
    },
    {
      "affs": [
        1
      ],
      "name": "Xiang‐Yu Wang",
      "orcid": "0000-0002-4504-6147"
    },
    {
      "affs": [
        6
      ],
      "name": "Jin Guo",
      "orcid": "0000-0002-9950-1029"
    },
    {
      "affs": [
        6
      ],
      "name": "Shi‐Mou Wang",
      "orcid": "0000-0002-4382-1349"
    },
    {
      "affs": [
        0
      ],
      "name": "Cai‐Jun Yan",
      "orcid": "0009-0001-9310-7477"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Bian‐Long Zhao",
      "orcid": "0009-0006-6965-1903"
    },
    {
      "affs": [
        1
      ],
      "name": "Hong‐Kai Zhang"
    },
    {
      "affs": [
        0
      ],
      "name": "Chang‐Yue Zhao"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8xnknm50jdhjj.bib",
  "cited_by": 0,
  "doi": "10.1029/2026av002548",
  "fulltext_url": null,
  "id": "8xnknm50jdhjj",
  "issns": [
    "2576-604X",
    "2576-604X"
  ],
  "landing_url": "https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2026AV002548",
  "language": null,
  "licence": "CC-BY-NC-4.0",
  "licence_label": "CC BY-NC 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3103|Ionosphere and magnetosphere dynamics"
    ]
  ],
  "openalex": "W7221130061",
  "pdf_url": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2026AV002548",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": "American Geophysical Union (AGU)",
  "ris": "https://research.draconitic.com/paper/8xnknm50jdhjj.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:58Z",
      "native_id": "10.1029/2026av002548",
      "source": "crossref",
      "url": "https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2026AV002548"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Ionosphere and magnetosphere dynamics",
      "subfield": "general"
    }
  ],
  "title": "Ionospheric Scintillation Induced by Hot Flow Anomalies via Particle Precipitation",
  "title_text": "Ionospheric Scintillation Induced by Hot Flow Anomalies via Particle Precipitation",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:20:58Z",
  "url": "https://research.draconitic.com/paper/8xnknm50jdhjj",
  "venue": "AGU Advances",
  "versions": []
}