{
  "abstract": "Research on present-day deformation across the Alpine-Himalayan belt has crossed a methodological threshold. Regional Sentinel-1 studies in Anatolia, Iran, and Tibet have now been joined by the first transcontinental three-dimensional velocity and horizontal strain-rate field, derived from more than 222,000 radar images acquired during 2016-2024 and a belt-wide GNSS compilation. The result provides approximately 1 km sampling over more than 20 million km² and 11,000 km of active continental deformation. This review assesses what that advance changes scientifically, and what it does not. The emerging belt-wide picture is neither a rigid-block system nor a uniformly deforming continuum. Strain is sharply localized on the North Anatolian, Haiyuan, Kunlun, and related faults, along the Himalayan and Pamir convergence fronts, and within Tibetan rifts; elsewhere, shortening, shear, and extension are distributed across broad interiors. Horizontal velocities are mainly tectonic, whereas much of the short-wavelength vertical field records aquifer depletion, sediment compaction, permafrost change, landsliding, or other shallow processes. The main limitations now arise from how observations are combined: line-of-sight geometry, uneven GNSS density, reference-frame and epoch differences, correlated atmospheric errors, phase unwrapping, regularization, and the treatment of fault creep and postseismic motion. Consequently, kilometre-scale pixels do not imply kilometre-scale independent resolution, and a strain anomaly cannot be equated directly with locked-fault hazard. The next phase should move from static average velocities toward uncertainty-aware four-dimensional models that combine C- and L-band radar, denser GNSS, explicit fault discontinuities, and process-based separation of tectonic and non-tectonic deformation.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "name": "MOHIT SHEODE"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6m8z0yf532spw.bib",
  "cited_by": 0,
  "doi": "10.31223/x5bz2x",
  "fulltext_url": null,
  "id": "6m8z0yf532spw",
  "issns": [],
  "landing_url": "https://eartharxiv.org/repository/view/14703/",
  "language": null,
  "licence": "CC-BY-NC-4.0",
  "licence_label": "CC BY-NC 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/legalcode",
  "metadata_licence": null,
  "native_subjects": [
    [
      "bepress",
      "Alpine-Himalayan belt"
    ],
    [
      "bepress",
      "GNSS"
    ],
    [
      "bepress",
      "Geophysics and Seismology"
    ],
    [
      "bepress",
      "InSAR"
    ],
    [
      "bepress",
      "Sentinel-1"
    ],
    [
      "bepress",
      "Tectonics and Structure"
    ],
    [
      "bepress",
      "crustal deformation"
    ],
    [
      "bepress",
      "strain rate"
    ],
    [
      "bepress",
      "tectonic geodesy"
    ],
    [
      "bepress",
      "velocity field"
    ],
    [
      "openalex",
      "2202|Synthetic Aperture Radar (SAR) Applications and Techniques"
    ]
  ],
  "openalex": "W7204806281",
  "pdf_url": "https://eartharxiv.org/repository/object/14703/download/25571/",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-31",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6m8z0yf532spw.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:21Z",
      "native_id": "14703",
      "source": "eartharxiv",
      "url": "https://eartharxiv.org/repository/view/14703/"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "bepress:Geophysics and Seismology",
      "subfield": "geophysics"
    }
  ],
  "title": "The Current State of Research on Deformation, Strain, and Velocity across the Alpine-Himalayan Belt Using Transcontinental Sentinel-1 InSAR and GNSS",
  "title_text": "The Current State of Research on Deformation, Strain, and Velocity across the Alpine-Himalayan Belt Using Transcontinental Sentinel-1 InSAR and GNSS",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:21Z",
  "url": "https://research.draconitic.com/paper/6m8z0yf532spw",
  "venue": "EarthArXiv",
  "versions": []
}