{
  "annotation_id": "d644e3f9-2ab9-49ea-8ff0-75c1502dbd94",
  "date_created": "2026-03-02T18:00:43.556000Z",
  "date_modified": "2026-03-02T18:00:43.556000Z",
  "file_hash": "072a5d35fd1a7109581cf473d8acc41954f3f434f85fbf73b43dbe91daa61f08",
  "private": false,
  "record": {
    "abstract": "Magma viscosity is strongly temperature-dependent. When hot magma flows in a\nconduit, heat is lost through the walls and the temperature decreases along the\nflow causing a viscosity increase. For particular values of the controlling\nparameters the steady-flow regime in a conduit shows two stable solutions\nbelonging either to the slow or to the fast branch. As a consequence, this\nsystem may show an hysteresis effect, and the transition between the two\nbranches can occur quickly when certain critical points are reached. In this\npaper we describe a model to study the relation between the pressure at the\ninlet and the volumetric magma flow rate in a conduit. We apply this model to\nexplain an hysteric jump observed during the dome growth at Soufri\\`ere Hills\nvolcano (Montserrat), and described by Melnik and Sparks [1999] using a\ndifferent model.",
    "arxiv_id": "physics/0302099",
    "authors": [
      "Antonio Costa",
      "Giovanni Macedonio"
    ],
    "categories": [
      "physics.geo-ph",
      "physics.flu-dyn"
    ],
    "journal_ref": "Geophysical Research Letters, Vol 29, No 10, 23 May 2002",
    "title": "Nonlinear phenomena in fluids with temperature-dependent viscosity: an   hysteresis model for magma flow in conduits",
    "url": "https://arxiv.org/abs/physics/0302099"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6d2845cd-c8df-4148-8498-62a8434a22f1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}