PostDoctoral Research Fellowship

博士后研究奖学金

• 批准号: 0851560
• 负责人: Samantha Hansen
• 金额: $ 14万
• 依托单位: Hansen Samantha E
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-06-01 至 2011-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0851560&HistoricalAwards=false
• 关键词: PostDoctoral; Research; Fellowship

This award supports a Postdoctoral Fellow--Dr. Samantha Hansen--to explore Antarctica's crust and upper mantle using new seismic methods. The project's goal is to understand the tectonic processes that shape the Antarctic continent. Two recently developed methods will be used: (1) joint modeling of S-wave receiver functions and surface wave dispersion to provide improved estimates of crustal thickness, and (2) adaptive gridding tomography using body wave travel times to produce a new upper mantle velocity model for the whole of Antarctica. The broader impacts are increasing the participation of an early career, woman PI and graduate and undergraduate education with outreach to groups underrepresented in the earth sciences. The results have societal relevance by providing new geologic constraints for ice sheet models relevant to understanding sea level rise in warming world.

该奖项支持博士后研究员萨曼莎汉森博士使用新的地震方法探索南极洲的地壳和上地幔。该项目的目标是了解塑造南极大陆的构造过程。将使用两种最近开发的方法：（1）联合模拟S波接收器功能和表面波频散，以提供更好的地壳厚度估计;（2）利用体波传播时间的自适应网格层析成像，为整个南极洲建立一个新的上地幔速度模型。更广泛的影响是增加了早期职业的参与，女性PI和研究生和本科教育，并与地球科学中代表性不足的群体进行外联。这些结果具有社会意义，为冰盖模型提供了新的地质约束，有助于了解全球变暖中海平面上升的情况。