{
  "abstract": "Glacier bed topography is crucial for modeling ice mass loss. However, heavily crevassed regions are challenging to survey using conventional methods, leading to data gaps. We establish a passive seismic approach exploiting naturally occurring crevassing events recorded with a dense seismic array to image the ice-bed interface without spatial interpolation. Using P-wave reflections from shallow events detected by matched field processing, we derive a two-dimensional ice-thickness map with ∼15 m vertical resolution in a crevasse field on Isunnguata Sermia, West Greenland. Our measurements are consistent with groundpenetrating radar ice thickness picks and extend coverage to previously inaccessible areas. The resolved bed shows a ∼100 m deep overdeepening along ice flow, poorly resolved in large-scale bed elevation products, co-located with a previously inferred active subglacial lake. This method provides a robust, logistically simpler tool than more conventional radar and active seismic surveys for high-resolution bed imaging in dynamically active glacier regions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 10,
  "authors": [
    {
      "name": "Nicolas Paris"
    },
    {
      "name": "Florent Gimbert"
    },
    {
      "name": "Philippe Roux"
    },
    {
      "name": "Stephen J Livingstone"
    },
    {
      "name": "Siobhan F Killingbeck"
    },
    {
      "name": "Andrew J Sole"
    },
    {
      "name": "Samuel H Doyle"
    },
    {
      "name": "Jonathan D Hawkins"
    },
    {
      "name": "Matthew W Peacey"
    },
    {
      "name": "Adam D Booth"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3qmncm7ef5806.bib",
  "cited_by": 0,
  "doi": "10.1029/2026gl124881",
  "fulltext_url": null,
  "id": "3qmncm7ef5806",
  "issns": [
    "0094-8276",
    "1944-8007"
  ],
  "landing_url": "https://hal.science/hal-05761373v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.sdu"
    ],
    [
      "hal",
      "1.sdu.stu"
    ],
    [
      "hal",
      "2.sdu.stu.gl"
    ],
    [
      "hal",
      "2.sdu.stu.gm"
    ],
    [
      "hal",
      "2.sdu.stu.gp"
    ],
    [
      "openalex",
      "1902|Cryospheric studies and observations"
    ]
  ],
  "openalex": "W7214120674",
  "pdf_url": "https://hal.science/hal-05761373/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": "American Geophysical Union",
  "ris": "https://research.draconitic.com/paper/3qmncm7ef5806.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:39Z",
      "native_id": "hal-05761373",
      "source": "hal",
      "url": "https://hal.science/hal-05761373v1"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "hal:2.sdu.stu.gm",
      "subfield": "geology-geochemistry"
    },
    {
      "field": "earth",
      "origin": "hal:2.sdu.stu.gp",
      "subfield": "geophysics"
    },
    {
      "field": "earth",
      "origin": "hal:2.sdu.stu.gl",
      "subfield": "oceanography"
    }
  ],
  "title": "Mapping Glacier Bed Topography in Crevassed Regions: A New Passive Seismic Reflection Method Applied to Isunnguata Sermia, West Greenland",
  "title_text": "Mapping Glacier Bed Topography in Crevassed Regions: A New Passive Seismic Reflection Method Applied to Isunnguata Sermia, West Greenland",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:39Z",
  "url": "https://research.draconitic.com/paper/3qmncm7ef5806",
  "venue": "Geophysical Research Letters",
  "versions": []
}