Impact of topography on atmospheric flow: implications for weather and climate

地形对大气流动的影响：对天气和气候的影响

• 批准号: 1145-2009
• 负责人: Moore, Kent
• 金额: $ 3.54万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=520356
• 关键词: Impact; topography; atmospheric; flow; implications

The objectives of my proposed research program are to improve our understanding of the influence that topography has on weather and climate. Mountains are of interest for a variety of reasons: they act as a barrier to atmospheric flow that can impact the weather and climate in their immediate vicinity as well as downstream; the precipitation that falls on their slopes serves as a valuable source of water for nearby lower-elevation communities and ecosystems; and their glaciers serve as important archives of past climate variability. One of the challenges to doing such research is that the regions of interest are remote and sparsely populated. As a result, data collection is a challenge and our knowledge of the processes by which atmospheric flow interacts with topography is therefore limited. A crucial and unique component of my research program therefore involves on-going data collection activities in mountainous regions, such as the Saint Elias Range in the Yukon Territory, Greenland and the Himalaya, where my group has made in-situ observations as to the impact that topography has on atmospheric flow. We propose to use this data along with other instrumental and paleoclimate datasets as well as numerical models to further our understanding of the impact that topography has on weather and climate.

我提出的研究计划的目标是提高我们的地形对天气和气候的影响的理解。人们对山脉感兴趣的原因有很多：山脉是大气流动的屏障，大气流动可能影响山脉附近以及下游的天气和气候;山脉山坡上的福尔斯降水是附近低海拔社区和生态系统的宝贵水源;山脉的冰川是过去气候变化的重要档案。进行此类研究的挑战之一是，感兴趣的地区偏远且人口稀少。因此，数据收集是一项挑战，我们对大气流动与地形相互作用的过程的了解因此是有限的。 因此，我的研究计划的一个关键和独特的组成部分涉及正在进行的数据收集活动，在山区，如圣埃利亚斯山脉在育空地区，格陵兰岛和喜马拉雅山，在那里我的小组进行了现场观测，地形对大气流动的影响。 我们建议使用这些数据沿着与其他仪器和古气候数据集以及数值模型，以进一步我们的地形对天气和气候的影响的理解。