U.S.-Switzerland Planning Visit: Seeking a Better Understanding of Canopy-Snowpack Interactions in Relation to the Avalanche Hazard

美国-瑞士计划访问：寻求更好地了解与雪崩危险相关的冠层-积雪相互作用

• 批准号: 0822226
• 负责人: Delphis Levia
• 金额: $ 1.56万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2009-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0822226&HistoricalAwards=false
• 关键词: U.S.; Switzerland; Planning; Visit; Seeking

This award permits Professor Delphis Levia and two graduate students from the University of Delaware to meet with two Swiss colleagues, Drs. Martin Schneebeli and Peter Bebi, of the Swiss Federal Snow and Avalanche Institute in Davos, Switzerland. The planning visit is absolutely critical as the research team will identify specific forest sites, characterize the forest stands, scout potential sites for the microclimatological instrumentation, and integrate in situ preliminary data into a new collaborative research proposal to be submitted to the National Science Foundation to investigate snow-canopy interactions in relation to the avalanche hazard. Dr. Levia is an expert in forest hydrology and snow-canopy interactions. Dr. Martin Schneebeli is co-inventor of the SnowMicroPen, a key instrument in the proposed work, and a world renowned snow scientist. Dr. Peter Bebi is an expert in forest-avalanche interactions. Our research team is ideally suited to investigate the effects of throughfall and snow microstructure in stands with variable tree spacing as we have complementary expertise in forest hydrology, snow hydrology and physics, and forest ecology as well as the avalanche hazard. The proposal stemming from this international planning visit is especially important because, while many avalanches are initiated in sparse forests, no studies have yet employed a snow micropenetrometer (i.e., SnowMicroPen) to examine the microstructural properties of subcanopy snowpacks. Thus, knowledge from this study would greatly advance relevant theory in snow science and ultimately lead to improved avalanche forecasts.

该奖项允许Delphis Levia教授和来自特拉华大学的两名研究生与瑞士达沃斯瑞士联邦雪崩研究所的两名瑞士同事Martin Schnebeli博士和Peter Bebi博士会面。这次规划访问是绝对关键的，因为研究小组将确定特定的森林地点，确定森林林的特征，为小气候仪器寻找潜在的地点，并将现场初步数据整合到一项新的合作研究提案中，该提案将提交给国家科学基金会，以调查与雪崩危险有关的雪-树冠相互作用。莱维亚博士是森林水文学和雪-树冠相互作用方面的专家。马丁·施尼贝利博士是SnowMicroPen的共同发明者，SnowMicroPen是拟议工作中的关键仪器，也是世界知名的雪地科学家。彼得·贝比博士是森林-雪崩相互作用方面的专家。我们的研究团队非常适合研究不同树木间距林分中穿透雨和雪微结构的影响，因为我们在森林水文、雪水文和物理、森林生态以及雪崩危险方面拥有互补的专业知识。这次国际规划访问提出的建议特别重要，因为虽然许多雪崩是在稀疏的森林中发起的，但还没有研究使用雪微渗透仪(即SnowMicroPen)来检查树冠下积雪的微结构特性。因此，这项研究的知识将极大地推动雪科学的相关理论，并最终导致改进雪崩预测。