Numerical simulation of drifting snow sublimation in the saltation layer.
Numerical simulation of drifting snow sublimation in the saltation layer.
复制标题
盐化层中流雪升华的数值模拟
DOI:
10.1038/srep06611
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发表时间:
2014-10-14
影响因子:
4.6
通讯作者:
Huang N
中科院分区:
文献类型:
--
作者:
Dai X;Huang N
Snow sublimation is an important hydrological process and one of the main causes of the temporal and spatial variation of snow distribution. Compared with surface sublimation, drifting snow sublimation is more effective due to the greater surface exposure area of snow particles in the air. Previous studies of drifting snow sublimation have focused on suspended snow, and few have considered saltating snow, which is the main form of drifting snow. In this study, a numerical model is established to simulate the process of drifting snow sublimation in the saltation layer. The simulated results show 1) the average sublimation rate of drifting snow particles increases linearly with the friction velocity; 2) the sublimation rate gradient with the friction velocity increases with increases in the environmental temperature and the undersaturation of air; 3) when the friction velocity is less than 0.525 m/s, the snowdrift sublimation of saltating particles is greater than that of suspended particles; and 4) the snowdrift sublimation in the saltation layer is less than that of the suspended particles only when the friction velocity is greater than 0.625 m/s. Therefore, the drifting snow sublimation in the saltation layer constitutes a significant portion of the total snow sublimation.
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DOI:
10.1016/j.ijheatmasstransfer.2008.06.003
发表时间:
2009-01-15
影响因子:
5.2
作者:
Neumann, Thomas A.;Albert, Mary R.;Perron, Frank
通讯作者:
Perron, Frank
影响因子:
56.9
作者:
ANDERSON, RS;HAFF, PK
通讯作者:
HAFF, PK
影响因子:
6.3
作者:
MacDonald, M. K.;Pomeroy, J. W.;Pietroniro, A.
通讯作者:
Pietroniro, A.
影响因子:
3.4
作者:
Schirmer, Michael;Lehning, Michael;Schweizer, Juerg
通讯作者:
Schweizer, Juerg
影响因子:
4.3
作者:
Shao, YP;Li, A
通讯作者:
Li, A