{
  "annotation_id": "55729098-c196-4b3d-82e4-6dc63e9642f0",
  "date_created": "2026-03-02T18:00:52.894000Z",
  "date_modified": "2026-03-02T18:00:52.894000Z",
  "file_hash": "bc116cb3ccd6b38225465911822e3077b2bb634c19c3e45c230a26993f37952a",
  "private": false,
  "record": {
    "abstract": "Small-scale magnetic turbulence observed by the Cluster spacecraft in the\nplasma sheet is investigated by means of a wavelet estimator suitable for\ndetecting distinct scaling characteristics even in noisy measurements. The\nspectral estimators used for this purpose are affected by a frequency dependent\nbias. The variances of the wavelet coefficients, however, match the power-law\nshaped spectra, which makes the wavelet estimator essentially unbiased. These\nscaling characteristics of the magnetic field data appear to be essentially\nnon-steady and intermittent. The scaling properties of bursty bulk flow (BBF)\nand non-BBF associated magnetic fluctuations are analysed with the aim of\nunderstanding processes of energy transfer between scales. Small-scale ($\\sim\n0.08-0.3$ s) magnetic fluctuations having the same scaling index $\\alpha \\sim\n2.6$ as the large-scale ($\\sim 0.7-5$ s) magnetic fluctuations occur during\nBBF-associated periods. During non-BBF associated periods the energy transfer\nto small scales is absent, and the large-scale scaling index $\\alpha \\sim 1.7$\nis closer to Kraichnan or Iroshnikov-Kraichnan scalings. The anisotropy\ncharacteristics of magnetic fluctuations show both scale-dependent and\nscale-independent behavior. The former can be partly explained in terms of the\nGoldreich-Sridhar model of MHD turbulence, which leads to the picture of\nAlfv\\\u0027{e}nic turbulence parallel and of eddy turbulence perpendicular to the\nmean magnetic field direction. Nonetheless, other physical mechanisms, such as\ntransverse magnetic structures, velocity shears, or boundary effects can\ncontribute to the anisotropy characteristics of plasma sheet turbulence. The\nscale-independent features are related to anisotropy characteristics which\noccur during a period of magnetic reconnection and fast tailward flow.",
    "arxiv_id": "physics/0411230",
    "authors": [
      "Z. V\u00f6r\u00f6s",
      "W. Baumjohann",
      "R. Nakamura",
      "A. Runov",
      "T. L. Zhang",
      "H. U. Eichelberger",
      "R. Treumann",
      "E. Georgescu",
      "A. Balogh",
      "B. Klecker",
      "H. R\u00e8me"
    ],
    "categories": [
      "physics.space-ph",
      "physics.plasm-ph"
    ],
    "doi": "10.1029/2004JA010404",
    "journal_ref": "Journal of Geophysical Research, 109, 2004, A11215",
    "title": "Magnetic turbulence in the plasma sheet",
    "url": "https://arxiv.org/abs/physics/0411230"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2e95daa3-eff7-40cd-8b5f-a7d9d98e1dce",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}