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datasets: add chevron-fwi-2014 (SEG 2014 Chevron FWI synthetic) - #130

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fix/chevron-fwi-2014-dataset
Oct 25, 2026
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GeophyAI merged 1 commit into
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fix/chevron-fwi-2014-dataset

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Adds chevron-fwi-2014, the SEG 2014 Chevron FWI synthetic, to sweep.datasets.

  • Returns the shot gathers (1600 × 2001 × 321, 4 ms), the starting vp (1200 × 3820, dz 5 m / dx 12.5 m), the source wavelet, a well log and the acquisition geometry. Chevron never released the true model, so there is no vp; fields= and shots= limit what is read.
  • Files come from the Hugging Face copy (shaowinw/seismic-benchmark-models, folder chevron_fwi_2014/, members of the original archive unchanged); if that fails, the bucket's two-part archive is fetched from the Internet Archive and extracted. Everything is pinned by sha256.
  • Tests: offline tests for both sources, header checks and retries; network tests for the Hugging Face pins. A full download from each source was checked against a verified copy of the data.

🤖 Generated with Claude Code

Shot gathers, starting vp, wavelet and well log; no vp (the model was never
released). Files from the Hugging Face copy, else extracted from the bucket's
original two-part archive via the Internet Archive; all pinned by sha256.
@GeophyAI
GeophyAI merged commit 2379f24 into dev Oct 25, 2026
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@GeophyAI
GeophyAI deleted the fix/chevron-fwi-2014-dataset branch October 25, 2026 18:57
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