Difference between revisions of "Vertical MWT"
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| width=550 | ''K<sub>w</sub> = K * S<sup>n</sup> || (1) | | width=550 | ''K<sub>w</sub> = K * S<sup>n</sup> || (1) | ||
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| − | {| |- | : | width=550 |'' | + | {| |- | : | width=550 |''K<sub>w</sub> = hydraulic conductivity of snow at saturation, S |
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Revision as of 21:01, 27 November 2012
As explained in Colbeck (1979) and Gray & Male (1981), the vertical flow of water through a snow pack is dominated by gravitational forces. Since capillary forces are typically ignored in vertical flow through a snow pack (Colbeck 1979; Gray and Male 1981; Colbeck and Anderson 1982), a gravity flow theory, such as used in the SNAP model (Albert & Krajeski, 1998) can be utilized. The hydraulic conductivity used within the SNAP model changes with saturation as seen in Equation 1. Vertical flow velocities ranging from 2 – 60 cm/min have been observed through a snow pack (Gray and Male 1981). For more information on the vertical flow equations used within the SNAP model the interested reader is encouraged to review Albert & Krajeski (1998).
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Kw = K * Sn | (1) |
