{
  "annotation_id": "56ae0659-6fdc-4bc3-af30-3f6574caa6f9",
  "date_created": "2026-03-02T18:00:32.416000Z",
  "date_modified": "2026-03-02T18:00:32.416000Z",
  "file_hash": "12fb36660441f8b436f173202874af4301d8eb1bddafdf8c0583daf76ff2c4d4",
  "private": false,
  "record": {
    "abstract": "3D Braginskii turbulence simulations show that the energy flux in the\ncore/edge transition region of a tokamak is strongly modulated - locally and on\naverage - by radially propagating, nearly coherent sinusoidal or solitary zonal\nflows. The flows are geodesic acoustic modes (GAM), which are primarily driven\nby the Stringer-Winsor term. The flow amplitude together with the average\nanomalous transport sensitively depend on the GAM frequency and on the magnetic\ncurvature acting on the flows, which could be influenced in a real tokamak,\ne.g., by shaping the plasma cross section. The local modulation of the\nturbulence by the flows and the excitation of the flows are due to wave-kinetic\neffects, which have been studied for the first time in a turbulence simulation.",
    "arxiv_id": "physics/0009058",
    "authors": [
      "K. Hallatschek",
      "D. Biskamp"
    ],
    "categories": [
      "physics.plasm-ph"
    ],
    "doi": "10.1103/PhysRevLett.86.1223",
    "title": "Transport control by coherent zonal flows in the core/edge transitional   regime",
    "url": "https://arxiv.org/abs/physics/0009058"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8d71fd76-29ff-4ee3-8dfa-f7c697606992",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}