{
  "method": "MHM Helmholtz 2020; continuous local Q3 and polynomial physical-flux trace",
  "doi": "10.1137/19M1255616",
  "material": {
    "dataset": "Marmousi II, Martin, Wiley and Marfurt (2006)",
    "doi": "10.1190/1.2172306",
    "sources": {
      "vp": {
        "filename": "vp_marmousi-ii.segy",
        "url": "https://ahay.org/data/marm2/vp_marmousi-ii.segy",
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      },
      "density": {
        "filename": "density_marmousi-ii.segy",
        "url": "https://ahay.org/data/marm2/density_marmousi-ii.segy",
        "sha256": "10ec5c4274a63ffde2ac94dda4f062d5b83827efcefeb1a2ab22438a85f32967"
      }
    },
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    "crop_origin_m": [
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    ],
    "cell_shape": [
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    "cell_spacing_m": 5.0,
    "sampling": "Primary nodes at material-cell centres; no interpolation",
    "coordinate_order": [
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      "depth"
    ],
    "density_unit": "kg/m^3",
    "velocity_unit": "m/s",
    "bulk_modulus_unit": "Pa",
    "historical_article_arrays_identified": false
  },
  "H_m": 20,
  "macro_shape": [
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    128
  ],
  "macro_cells": 65536,
  "local_refinement": 8,
  "local_degree": 3,
  "trace_degree": 1,
  "omega": 125.66370614359172,
  "point_source": [
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    50,
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  "point_source_allocation": [
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      "sources": [
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      ]
    },
    {
      "macro_cell": 1274,
      "sources": [
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        ]
      ]
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  ],
  "point_source_convention": "Incident-angle allocation; total unit strength preserved",
  "boundary": "Top weak Dirichlet zero; other sides outgoing first-order absorption zero",
  "global_complex_dofs_total": 263424,
  "global_complex_dofs_free": 261888,
  "algebraic_residual": 2.836436851396874e-14,
  "macro_balance_max": 9.41150427030045e-15,
  "assembly_order": 8,
  "elapsed_seconds": 835.5478330249898,
  "workers": 8,
  "archive": "mhm-H20-ell1.npz",
  "archive_sha256": "6478c09976533dbf333ed5b74cf6ce73b8e51dda93ec6a2d82f1711c66398503",
  "source_sha256": {
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    "src/pymhm/mesh.py": "dcb0cae3352615514bdb363586e66c94ba71a2568da09e10d6d04cfb44e176ae",
    "src/pymhm/elements.py": "bcb1368e5a7f2ded4fdb2d4d8e09a0b43a8600fece40bd2cc208c8490b89e1e9",
    "src/pymhm/lagrange.py": "830158d70cddd6f4e92cefe8909cb6855a8dcaa0c7bf32cb85fbf638d490feb9",
    "src/pymhm/_geometry_roundoff.py": "7682dec2f30aa8dfbd64c9952ec41399d965c72cf1b017da82050036b458012e",
    "src/pymhm/quadrilateral.py": "7c01f091d7a18c87c243b74a43fcafa1f942d8c7117cd40d49d1ec5a03685cf3",
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    "src/pymhm/hybrid.py": "288f85a41eeda946fe7b6a2fc9299c2c9dfc9f1d7bd61a4cc1a625708dae998d",
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    "src/pymhm/parallel.py": "bc42202b0096efbe4e79d7c95130b8cb5b46769e51371ad3a167fd25c731eb64",
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  "source_changed_during_run": false,
  "sampling": "513 by129 nodes; four incident macro values, without averaging",
  "historical_article_arrays_identified": false
}