Collaborative Research: Constraints on the last Ross Ice Sheet from Glacial Deposits in the Southern Transantarctic Mountains

合作研究：南横贯南极山脉冰川沉积物对最后一个罗斯冰盖的限制

• 批准号: 0838818
• 负责人: John Stone
• 金额: $ 59.13万
• 依托单位: University of Washington
• 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: 2009-08-15 至 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0838818&HistoricalAwards=false
• 关键词: Collaborative; Research; Constraints; last; Ross

Stone/0838818 This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This award supports a project to study the former thickness and retreat history of Shackleton and Beardmore Glaciers which flow through the Transantarctic Mountains (TAMs) into the southern Ross Sea. Lateral moraine deposits along the lower reaches of these major outlet glaciers will be mapped and dated and the results will help to date the LGM and constrain the thickness of ice where it left the Transantarctic Mountains and flowed into the Ross Sea. The intellectual merit of the project is that the results will allow scientists to distinguish between models of ice retreat, which have important implications for former ice configuration and dynamics, and to constrain the contribution from Ross Sea deglaciation to global sea level through the late Holocene. In addition, this will make a significant contribution to a better understanding of the magnitude and timing of postglacial sea-level change and the potential contribution of Antarctica to sea-level rise in future. The broader impacts of the project are that the work will help quantify changes in grounded ice volume since the LGM, improve understanding of the ice dynamics responsible, and examine their implications for future sea level change. The project will train future scientists through participation of two graduate students and undergraduates who will develop self-contained research projects. As in previous Antarctic projects, there will be interaction with K-12 students through classroom visits, web-based expedition journals, letters from the field, and discussions with teachers and will allow the project to be shared with a wide audience. This award has field work in Antarctica.

Stone/0838818该奖项是根据2009年的《美国回收与再投资法》（公法111-5）资助的。该奖项支持一个项目，旨在研究Shackleton和Beardmore冰川的以前的厚度和撤退历史，这些冰川和Beardmore冰川流经跨抗山脉（TAMS）的Shackleton和Beardmore冰川。 沿着这些主要出口冰川的下部的侧层沉积物将被绘制和日期，结果将有助于与LGM约会，并约束冰的厚度，并在其离开跨北极山脉的地方并流入罗斯海。 该项目的智力优点在于，结果将使科学家能够区分冰撤退的模型，冰撤退对以前的冰构型和动力学具有重要意义，并限制了从全新世晚期从罗斯海退化对全球海平面的贡献。 此外，这将为更好地理解冰川后海平面变化的大小和时机以及南极对未来海平面上升的潜在贡献做出重大贡献。该项目的更广泛的影响是，由于LGM，这项工作将有助于量化接地的冰量变化，提高对负责的冰动态的了解，并研究其对未来海平面变化的影响。该项目将通过两名研究生和本科生的参与来培训未来的科学家，他们将开发独立的研究项目。与以前的南极项目一样，通过课堂访问，基于Web的探险期刊，现场来信以及与老师的讨论，将与K-12学生进行互动，并将允许该项目与广泛的受众共享。 该奖项在南极洲进行了实地研究。