{
  "annotation_id": "de3ffa91-0f73-4ece-a4d4-921242e26e13",
  "date_created": "2026-03-02T18:01:07.406000Z",
  "date_modified": "2026-03-02T18:01:07.406000Z",
  "file_hash": "84b144fe61a6a19ce18bf3ce78c40bd4fc3243fc9353dd7d5518cdea20682d8c",
  "private": false,
  "record": {
    "abstract": "Records of Dst, Kp and Sym-H indexes are analyzed looking for evidences of\npossible precursors for magnetic storms. To accomplish this task the main\nmagnetic storms were located and some periods immediately before storms and\nsome periods well before them studied. Statistical properties of both types of\nperiods were then compared. In particular, were compared the slopes of the\npower laws that have been found for the distributions of indexes values. A\nsystematic deviation was found between both distributions for the Kp index. It\nwas no so for Dst and Sym-H indexes. For the three indexes it was found a\ncorrelation between slopes and the corresponding storm intensity, which could\nserve as a probabilistic approach to magnetic storms forecasting. The data for\nthe analysis was obtained at the World Data Centre for Geomagnetism at Kyoto.",
    "arxiv_id": "physics/0605170",
    "authors": [
      "Vitor H. A. Dias",
      "Jorge O. O. Franco",
      "Andres R. R. Papa"
    ],
    "categories": [
      "physics.geo-ph",
      "physics.ao-ph"
    ],
    "title": "Changes in fractal properties of geomagnetic indexes as possible   magnetic storms precursors",
    "url": "https://arxiv.org/abs/physics/0605170"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ed0cd207-8977-420c-b67b-3fc9d90d6447",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}