{
  "id": 576243,
  "title": "Clarification on Source/Receiver Line Alignment and Velocity Map Orientation",
  "url": "/competitions/waveform-inversion/discussion/576243",
  "author_name": "cijb_7724",
  "post_date": "2025-05-03T18:55:13.537000",
  "votes": 2,
  "comment_count": 0,
  "views": 0,
  "content": "<p>Hello Waveform Inversion Team,</p>\n<p>Thank you for the great dataset and competition.</p>\n<p>While reviewing the OpenFWI paper and supplemental materials, I had two quick questions about the acquisition setup:</p>\n<p>(1)Are the source and receiver lines located along the same straight line on the surface (i.e., collinear)?</p>\n<p>(2)Is the 2D velocity map oriented perpendicular to the receiver line, along the wave propagation direction?</p>\n<p>I wasn’t able to find explicit statements confirming these points in the materials I’ve read so far, so I’d appreciate your clarification.</p>\n<p><a href=\"https://proceedings.neurips.cc/paper_files/paper/2022/hash/27d3ef263c7cb8d542c4f9815a49b69b-Abstract-Datasets_and_Benchmarks.html\" target=\"_blank\">https://proceedings.neurips.cc/paper_files/paper/2022/hash/27d3ef263c7cb8d542c4f9815a49b69b-Abstract-Datasets_and_Benchmarks.html</a></p>",
  "messages": [
    {
      "id": 3193063,
      "postDate": "2025-05-03T18:55:13.537Z",
      "content": "<p>Hello Waveform Inversion Team,</p>\n<p>Thank you for the great dataset and competition.</p>\n<p>While reviewing the OpenFWI paper and supplemental materials, I had two quick questions about the acquisition setup:</p>\n<p>(1)Are the source and receiver lines located along the same straight line on the surface (i.e., collinear)?</p>\n<p>(2)Is the 2D velocity map oriented perpendicular to the receiver line, along the wave propagation direction?</p>\n<p>I wasn’t able to find explicit statements confirming these points in the materials I’ve read so far, so I’d appreciate your clarification.</p>\n<p><a href=\"https://proceedings.neurips.cc/paper_files/paper/2022/hash/27d3ef263c7cb8d542c4f9815a49b69b-Abstract-Datasets_and_Benchmarks.html\" target=\"_blank\">https://proceedings.neurips.cc/paper_files/paper/2022/hash/27d3ef263c7cb8d542c4f9815a49b69b-Abstract-Datasets_and_Benchmarks.html</a></p>",
      "rawMarkdown": "Hello Waveform Inversion Team,\n\nThank you for the great dataset and competition.\n\nWhile reviewing the OpenFWI paper and supplemental materials, I had two quick questions about the acquisition setup:\n\n(1)Are the source and receiver lines located along the same straight line on the surface (i.e., collinear)?\n\n(2)Is the 2D velocity map oriented perpendicular to the receiver line, along the wave propagation direction?\n\nI wasn’t able to find explicit statements confirming these points in the materials I’ve read so far, so I’d appreciate your clarification.\n\nhttps://proceedings.neurips.cc/paper_files/paper/2022/hash/27d3ef263c7cb8d542c4f9815a49b69b-Abstract-Datasets_and_Benchmarks.html",
      "votes": 2
    }
  ],
  "comments": [],
  "raw_markdown_by_id": {
    "3193063": "Hello Waveform Inversion Team,\n\nThank you for the great dataset and competition.\n\nWhile reviewing the OpenFWI paper and supplemental materials, I had two quick questions about the acquisition setup:\n\n(1)Are the source and receiver lines located along the same straight line on the surface (i.e., collinear)?\n\n(2)Is the 2D velocity map oriented perpendicular to the receiver line, along the wave propagation direction?\n\nI wasn’t able to find explicit statements confirming these points in the materials I’ve read so far, so I’d appreciate your clarification.\n\nhttps://proceedings.neurips.cc/paper_files/paper/2022/hash/27d3ef263c7cb8d542c4f9815a49b69b-Abstract-Datasets_and_Benchmarks.html"
  }
}