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Percolation of meltwater through a snowpack
Luleå tekniska universitet.
1982 (Engelska)Ingår i: Cold Regions Science and Technology, ISSN 0165-232X, E-ISSN 1872-7441, Vol. 6, nr 1, s. 73-81Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The hydraulics of meltwater percolation through a snowpack is analyzed in some detail. An implicit numerical model is used for determining the meltwater movement. The effect of freezing fronts of the free liquid water in the snowpack is evaluated. It is shown that even after a moderately cold night, it takes several hours of snowmelt before the snowpack again reaches its irreducible liquid content. The meltwater flux front moves very slowly down through the depth, where the liquid water has been refrozen during a preceding night. The time delay between the initiation of snowmelt at the surface and the start of run-off at the base of the snowpack is shown to be determined from a simple continuity reasoning. Finally, a comparison between theory and field measurements is made.

Ort, förlag, år, upplaga, sidor
1982. Vol. 6, nr 1, s. 73-81
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URN: urn:nbn:se:ltu:diva-7023DOI: 10.1016/0165-232X(82)90046-5ISI: A1982PF57900008Scopus ID: 2-s2.0-0020169990Lokalt ID: 55a57fb0-0ee6-11de-b3bc-000ea68e967bOAI: oai:DiVA.org:ltu-7023DiVA, id: diva2:979910
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Godkänd; 1982; 20090312 (bajo)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-07-10Bibliografiskt granskad

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