Snow Drift Management: Summit Station Greenland
Snow Drift Management: Summit Station Greenland
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雪堆管理：格陵兰峰会站
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
M. Bigl
中科院分区：
文献类型：
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作者：
R. Haehnel;M. Bigl
摘要：应国家科学基金会的要求，美国陆军寒冷地区研究和工程实验室审查了现有的积雪调查数据，并对格陵兰岛的Summit站进行了漂流雪运输分析，以评估该站点漂流问题的性质。在冬季漂移的严重程度显着大于在夏季，因此，雪堆管理策略应侧重于尽量减少冬季积累。运输分析表明，雪是从两个主要方向，东南和西南，这证实了卫星图像的雪堆。计算秋季和春季调查之间的海拔差异允许在冬季在首脑会议的累积漂移量的估计。将这些计算的雪量与雪运输分析进行比较，结果表明，每年冬季风运输到山顶的估计雪量中约有25%沉积并形成漂移，主要是在靠近建筑物的地方。该分析表明，天气数据（风速和风向）和运输分析可以帮助估计需要在首脑会议上管理的雪堆量。
Abstract : At the request of the National Science Foundation, the U.S. Army Cold Regions Research and Engineering Laboratory reviewed available snow survey data and conducted a drifting snow transport analysis for Summit Station, Greenland, to assess the nature of the drifting problems at this site. The severity of drifting during the winter was significantly greater than during summer months; therefore, snowdrift management strategies should focus on minimizing winter accumulations. The transport analysis showed that the snow is conveyed from two dominant directions, southeast and southwest, which satellite imagery of snowdrifts confirmed. Computing the elevation difference between fall and spring surveys allowed estimates of the accumulated drift volume during a winter at Summit. Comparing these computed volumes to the snow transport analysis showed that about 25% of the estimated snow that the wind transports to Summit each winter is deposited and forms drifts, mostly in close proximity to the structures. This analysis demonstrates that weather data (wind speed and direction) and a transport analysis can aid in estimating the volume of snowdrifts needing to be managed at Summit.