Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-16-0158.1 |
The Simulated Response of Diurnal Mountain Winds to Regionally Enhanced Warming Caused by the Snow Albedo Feedback | |
Letcher, Theodore W.; Minder, Justin R. | |
2017 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2017 |
卷号 | 74期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The snow albedo feedback (SAF) is an important climate feature of mountain regions with transient snow cover. In these regions, where patterns of snow cover are largely determined by the underlying terrain, the SAF is highly variable in space and time. Under climate warming, these variations may affect the development of diurnal mountain winds either by altering the thermal contrast between high and low elevations or by increasing boundary layer mixing. In this study, high-resolution regional climate modeling experiments are used to investigate and characterize how the SAF modulates changes in diurnal wind systems in the Rocky Mountains of Colorado and Utah during the spring when SAF strength is at a maximum. Two separate 7-yr pseudo-global warming climate change experiments with differing model configurations are examined. An evaluation of the control simulations against a mesoscale network of observations reveals that the models perform reasonably well at simulating diurnal mountain winds within this region. In the experiment with a strong SAF, there is a clear increase in the strength of daytime upslope flow under climate warming, which leads to increased convergence and cloudiness near the snow margin. Additionally, there is a decrease in the strength of nighttime downslope flows. In the simulation with a weaker SAF, the results are generally similar but less pronounced. In both experiments, an altered thermal contrast, rather than increased boundary layer mixing, appears to be the primary mechanism driving changes in diurnal mountain wind systems in this region. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000392419300004 |
WOS关键词 | CLIMATE MODEL ; COLORADO ; TERRAIN ; COVER ; IMPLEMENTATION ; SYSTEMS ; OZONE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29674 |
专题 | 地球科学 |
作者单位 | SUNY Albany, 1400 Washington Ave, Albany, NY 12222 USA |
推荐引用方式 GB/T 7714 | Letcher, Theodore W.,Minder, Justin R.. The Simulated Response of Diurnal Mountain Winds to Regionally Enhanced Warming Caused by the Snow Albedo Feedback[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2017,74(1). |
APA | Letcher, Theodore W.,&Minder, Justin R..(2017).The Simulated Response of Diurnal Mountain Winds to Regionally Enhanced Warming Caused by the Snow Albedo Feedback.JOURNAL OF THE ATMOSPHERIC SCIENCES,74(1). |
MLA | Letcher, Theodore W.,et al."The Simulated Response of Diurnal Mountain Winds to Regionally Enhanced Warming Caused by the Snow Albedo Feedback".JOURNAL OF THE ATMOSPHERIC SCIENCES 74.1(2017). |
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