PostDoctoral Research Fellowship

博士后研究奖学金

• 批准号: 0851953
• 负责人: Zoe Courville
• 金额: $ 13.86万
• 依托单位: Courville Zoe
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-07-15 至 2012-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0851953&HistoricalAwards=false
• 关键词: PostDoctoral; Research; Fellowship

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). This post-doctoral fellowship award supports a project to determine the spatial extent of metamorphosed snow, and the amount of grain growth due to metamorphism in firn on the East Antarctic Plateau. This will be combined with satellite-based mapping and data from surface traverse-acquired radar profiles in order to improve the physical understanding of depositional processes and their impact on the character of radar signals from areas of extensive snow metamorphism. The intellectual merit of the research is that it combines previous surface work on firn metamorphism on the East Antarctic Plateau with the wealth of recent traverse and remote-sensing based information on firn physical properties and surface topography. The objective is to fully document the location and character of megadune areas on the Plateau and create a comprehensive, plateau-wide context for megadune occurrence. The broader impacts of this work are that it will provide technical and career development opportunities for the PI by introducing her to the use of remote sensing techniques that provide spatial context for understanding the depositional and metamorphic processes in firn that she has previously studied. This interdisciplinary approach combines previous work with mentoring in remote sensing research at the University of New Hampshire with sponsoring scientist Mark Fahnestock. The research will also make a contribution toward understanding mass accumulation over East Antarctica - a fundamental problem faced by researchers trying to access the present mass balance of the ice sheet. The project will also involved informal science outreach, with emphasis on Arctic communities.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。这个博士后奖学金支持一个项目，以确定变质雪的空间范围，以及由于在南极高原东部的积雪变质的颗粒生长量。 这将与卫星绘图和地面扫描获取的雷达剖面数据相结合，以增进对沉积过程及其对广泛积雪变质地区雷达信号特征的影响的物理了解。 这项研究的知识价值在于，它将以往关于南极东部高原积雪变质的地表工作与最近大量的关于积雪物理特性和地表地形的穿越和遥感资料结合起来。 目的是充分记录高原上巨球区的位置和特征，并为巨球区的发生创造一个全面的、全高原范围的背景。 这项工作的更广泛的影响是，它将为PI提供技术和职业发展机会，向她介绍使用遥感技术，为了解她以前研究过的雪层沉积和变质过程提供空间背景。这种跨学科的方法结合了以前的工作与指导遥感研究在新罕布什尔州大学与赞助科学家马克Fahnestock。这项研究还将有助于理解南极洲东部的物质积累-这是研究人员试图获得冰盖目前物质平衡所面临的一个基本问题。 该项目还将涉及非正式的科学宣传，重点是北极社区。