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| Content Provider | Springer Nature Link |
|---|---|
| Author | Nemoto, Masaki Sato, Takeshi Kosugi, Kenji Mochizuki, Shigeto |
| Copyright Year | 2014 |
| Abstract | Wind-tunnel and numerical experiments were performed to investigate the effects of snowfall on the wind profile and the development of drifting snow. Wind profiles and mass-flux profiles of drifting snow were measured with and without artificial snowfall over a snow surface within the tunnel. Wind and shear-stress profiles and the impact speeds of the snowflakes during snowfall were also investigated numerically. During snowfall, snowflakes transfer part of their horizontal momentum to the air, which increases the stress close to the snow surface; however, the resultant modifications of the wind profiles are small. Because snowflakes have large momentum, the decomposed snow crystals that result from their collision with a surface can form a saltation layer, even over a hard snow surface where entrainment of the grains from the surface does not occur. Additionally, during snowfall, the threshold friction velocity can be lower than the impact threshold because snowflake fragmentation facilitates snow drifting. The broken crystals contribute to the increase in the number of drifting snow grains, even below the impact threshold. |
| Starting Page | 395 |
| Ending Page | 410 |
| Page Count | 16 |
| File Format | |
| ISSN | 00068314 |
| Journal | Boundary-Layer Meteorology |
| Volume Number | 152 |
| Issue Number | 3 |
| e-ISSN | 15731472 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2014-04-10 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Drifting snow Numerical simulation Snowfall Wind structure Wind-tunnel experiment Atmospheric Sciences Meteorology Atmospheric Protection/Air Quality Control/Air Pollution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atmospheric Science |
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