{
  "annotation_id": "a7a3b63e-9903-40b0-a6fd-19e4c98e4a97",
  "date_created": "2026-03-02T18:00:57.275000Z",
  "date_modified": "2026-03-02T18:00:57.275000Z",
  "file_hash": "38246c871b29e7107ae9382d466bba7a5327da3550c4da6cf99d390d6586c441",
  "private": false,
  "record": {
    "abstract": "The impinging solar wind and its magnetic field perturbed the Earth\u0027s\nmagnetosphere and create magnetic storms and substorms. The Earth\u0027s\nmagnetosphere expands (contracts) during periods of southward (northward) IMF.\nIt is shown that these magnetospheric expansions and contractions account for\npoorly understood aspects of magnetic storm-substorm relationship, bifurcation\nof the magnetotail and the appearance of theta aurora. Quantitative theory and\ncalculations in agreement with the suggested model of solar\nwind/IMF-magnetosphere coupling are presented. Pre-noon and post-noon dents on\nthe magnetopause are expected to appear during a long period of strong\nnorthward IMF. The contracting and expanding magnetosphere accumulates solar\nwind plasma and its magnetic field. The accumulated energy is delivered into\nthe polar regions and creates auroral activity intensification.",
    "arxiv_id": "physics/0501048",
    "authors": [
      "E. P. Savov"
    ],
    "categories": [
      "physics.space-ph",
      "physics.plasm-ph"
    ],
    "title": "Magnetic Storm-substorm Relationship and Some Associated Issues",
    "url": "https://arxiv.org/abs/physics/0501048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "34e32ab9-e504-4a93-8901-8561aa806329",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}