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Sensitivity of Model-Generated Daytime Surface Heat Fluxes over Snow to Land-Cover Changes
| Content Provider | Semantic Scholar |
|---|---|
| Author | Strack, John E. Pielke, Roger A. Adegoke, Jimmy O. |
| Copyright Year | 2003 |
| Abstract | Abstract Snow cover can significantly suppress daytime temperatures by increasing the surface albedo and limiting the surface temperature to 0°C. The strength of this effect is dependent upon how well the snow can cover, or mask, the underlying surface. In regions where tall vegetation protrudes through a shallow layer of snow, the temperature-reducing effects of the snow will be suppressed since the protruding vegetation will absorb solar radiation and emit an upward turbulent heat flux. This means that an atmospheric model must have a reasonable representation of the land cover, as well as be able to correctly calculate snow depth, if an accurate simulation of surface heat fluxes, air temperatures, and boundary layer structure is to be made. If too much vegetation protrudes through the snow, then the surface sensible heat flux will be too large and the air temperatures will be too high. In this study four simulations are run with the Regional Atmospheric Modeling System (RAMS 4.30) for a snow event that... |
| Starting Page | 24 |
| Ending Page | 42 |
| Page Count | 19 |
| File Format | PDF HTM / HTML |
| Volume Number | 4 |
| Alternate Webpage(s) | https://pielkeclimatesci.files.wordpress.com/2009/10/r-251.pdf |
| Alternate Webpage(s) | https://doi.org/10.1175/1525-7541%282003%29004%3C0024%3ASOMGDS%3E2.0.CO%3B2 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
