{
  "annotation_id": "68e2c599-8f6b-4609-bfbe-19c1fe0c7125",
  "date_created": "2026-03-02T18:01:10.868000Z",
  "date_modified": "2026-03-02T18:01:10.868000Z",
  "file_hash": "3cb3f7ab729e3e1f05a423c29ad30d36bc01a6f0ff1a06c8ac7e0676910a624f",
  "private": false,
  "record": {
    "abstract": "In this paper, we use the approximation of shallow water waves (Margaritondo\nG 2005 Eur. J. Phys. 26 401) to understand the behaviour of a tsunami in a\nvariable depth. We deduce the shallow water wave equation and the continuity\nequation that must be satisfied when a wave encounters a discontinuity in the\nsea depth. A short explanation about how the tsunami hit the west coast of\nIndia is given based on the refraction phenomenon. Our procedure also includes\na simple numerical calculation suitable for undergraduate students in physics\nand engineering.",
    "arxiv_id": "physics/0606225",
    "authors": [
      "O. Helene",
      "M. T. Yamashita"
    ],
    "categories": [
      "physics.ed-ph"
    ],
    "doi": "10.1088/0143-0807/27/4/016",
    "journal_ref": "European Journal of Physics 27, 855 (2006)",
    "title": "Understanding the tsunami with a simple model",
    "url": "https://arxiv.org/abs/physics/0606225"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a4c7ae1d-0f55-4643-9205-5a4b2191653f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}