{
  "abstract": "Erosion can fundamentally alter landslide acceleration through the produced momentum. However, existing analytical landslide velocity models do not account for the energy dissipation associated with erosion-induced system acceleration. Here, I present a novel, complete dynamical velocity model for erosive landslides that incorporates two intrinsically coupled mechanically essential processes: erosion-induced acceleration and mobility booster through the net momentum production. This coupling is established analytically by formulating a simple equation for landslide velocity with erosion and deriving its elegant exact solution. I demonstrate that these two processes jointly govern the mobility of erosive landslides. My model applies to both non-deformable and deformable landslides, a key advantage, as erosive landslides are inherently deformable. The newly introduced booster velocity, defined as the ratio of erosion-induced acceleration to the mobility booster rate, provides the first precise mechanical criterion for determining landslide mobility: the lower the booster velocity, the higher the landslide mobility, a phenomenal understanding. This criterion incorporates all governing mechanisms: erosion rate, energy generator, and resulting acceleration. Remarkably, this result becomes possible only when erosion-induced acceleration is considered. However, contrary to prevailing perceptions, erosion-rate alone is insufficient to determine landslide mobility, irrespective of its magnitude. The model ascertains that accurate simulation of landslide dynamics requires accounting for erosion-induced reductions in frictional energy dissipation and inertia, alongside system acceleration, as these mechanisms collectively control landslide mobility. Neglecting erosion-induced reduced-inertia leads to physically inconsistent predictions and can substantially underestimate landslide mobility, potentially resulting in catastrophic consequences for people and infrastructure in landslide-prone mountain slopes and valleys.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "name": "Shiva P. Pudasaini"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3g6cdhhzg8yz4.bib",
  "cited_by": 0,
  "doi": "10.31223/x5gj6j",
  "fulltext_url": null,
  "id": "3g6cdhhzg8yz4",
  "issns": [],
  "landing_url": "https://eartharxiv.org/repository/view/15772/",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/legalcode",
  "metadata_licence": null,
  "native_subjects": [
    [
      "bepress",
      "Civil and Environmental Engineering"
    ],
    [
      "bepress",
      "Earth Sciences"
    ],
    [
      "bepress",
      "Engineering"
    ],
    [
      "bepress",
      "Environmental Engineering"
    ],
    [
      "bepress",
      "Environmental Sciences"
    ],
    [
      "bepress",
      "Geology"
    ],
    [
      "bepress",
      "Geomorphology"
    ],
    [
      "bepress",
      "Geotechnical Engineering"
    ],
    [
      "bepress",
      "Glaciology"
    ],
    [
      "bepress",
      "Hydraulic Engineering"
    ],
    [
      "bepress",
      "Hydrology"
    ],
    [
      "bepress",
      "Landslide"
    ],
    [
      "bepress",
      "Physical Sciences and Mathematics"
    ],
    [
      "bepress",
      "Risk Analysis"
    ],
    [
      "bepress",
      "Sedimentology"
    ],
    [
      "bepress",
      "Social and Behavioral Sciences"
    ],
    [
      "bepress",
      "acceleration; Velocity"
    ],
    [
      "bepress",
      "analytical model"
    ],
    [
      "bepress",
      "avalanche"
    ],
    [
      "bepress",
      "booster velocity"
    ],
    [
      "bepress",
      "debris flow; Erosion"
    ],
    [
      "bepress",
      "energy generator"
    ],
    [
      "bepress",
      "entrainment"
    ],
    [
      "bepress",
      "exact solution; Mobility booster"
    ],
    [
      "bepress",
      "mobility; Momentum production"
    ],
    [
      "openalex",
      "2308|Landslides and related hazards"
    ]
  ],
  "openalex": "W7223665791",
  "pdf_url": "https://eartharxiv.org/repository/object/15772/download/27316/",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3g6cdhhzg8yz4.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:52Z",
      "native_id": "15772",
      "source": "eartharxiv",
      "url": "https://eartharxiv.org/repository/view/15772/"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "bepress:Environmental Sciences",
      "subfield": "environmental-science"
    },
    {
      "field": "earth",
      "origin": "bepress:Geology",
      "subfield": "geology-geochemistry"
    },
    {
      "field": "earth",
      "origin": "bepress:Hydrology",
      "subfield": "hydrology-soils"
    },
    {
      "field": "earth",
      "origin": "bepress:Glaciology",
      "subfield": "oceanography"
    }
  ],
  "title": "Erosion-induced momentum production and system acceleration govern landslide mobility",
  "title_text": "Erosion-induced momentum production and system acceleration govern landslide mobility",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:52Z",
  "url": "https://research.draconitic.com/paper/3g6cdhhzg8yz4",
  "venue": "EarthArXiv",
  "versions": []
}