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Outburst Floods from Glacial Lake Missoula

  • G. K. C. Clarke (a1), W. H. Mathews (a2) and R. T. Pack (a2)

The Pleistocene outburst floods from glacial Lake Missoula, known as the “Spokane Floods”, released as much as 2184 km3 of water and produced the greatest known floods of the geologic past. A computer simulation model for these floods that is based on physical equations governing the enlargement by water flow of the tunnel penetrating the ice dam is described. The predicted maximum flood discharge lies in the range 2.74 × 106−13.7 × 106 m3 sec−1, lending independent glaciological support to paleohydrologic estimates of maximum discharge.

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V.N. Baker (1973). Paleohydrology and sedimentology of Lake Missoula Flooding in eastern Washington Geological Society of America, Special Paper 114

J.H. Bretz (1926). The Spokane flood beyond the channeled scablands Journal of Geology 33 97 115; 236259.

G.K.C. Clarke (1982). Glacier outburst floods from “Hazard Lake”, Yukon Territory, and the problem of flood magnitude prediction Journal of Glaciology 28 3 21

G.K.C. Clarke W.H. Mathews (1981). Estimates of the magnitude of glacier outburst floods from Lake Donjek, Yukon Territory, Canada Canadian Journal of Earth Sciences 18 1452 1463

G.K.C. Clarke D.A. Waldron (1984). Simulation of the August 1979 sudden discharge of glacier-dammed Flood Lake, British Columbia Canadian Journal of Earth Sciences 21 502 504

J.W. Glen (1955). The creep of polycrystalline ice Proceedings of the Royal Society of London, Series A 228 519 538

J.F. Nye (1976). Water flow in glaciers: Jökulhlaups, tunnels and veins Journal of Glaciology 17 181 207

J.T. Pardee (1942). Unusual currents in Glacial Lake Missoula, Montana Bulletin of the Geological Society of America 53 1569 1600

W.S.B. Paterson 2nd ed. (1981). The Physics of Glaciers Pergamon Oxford

U. Spring K. Hutter (1981). Numerical studies of jökulhlaups Cold Regions Science and Technology 4 227 244

U. Spring K. Hutter (1982). Conduit flow of a fluid through its solid phase and its application to intraglacial channel flow International Journal of Engineering Science 20 327 363

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Quaternary Research
  • ISSN: 0033-5894
  • EISSN: 1096-0287
  • URL: /core/journals/quaternary-research
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