Late Quaternary Warm Events in the Southern Ocean, Their Impact upon the Stability of the West Antarctic Ice Sheet

南大洋第四纪晚期温暖事件及其对南极西部冰盖稳定性的影响

• 批准号: 9220216
• 负责人: Lloyd Burckle
• 金额: $ 15.5万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-01 至 1996-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9220216&HistoricalAwards=false
• 关键词: Late; Quaternary; Warm; Events; Southern

This award supports a study of sediment cores from the Southern Ocean to extract and interpret paleoceanographic and paleoclimatic information. The project will examine the impact that glacial/interglacial changes in Southern Ocean conditions might have had on the stability of the West Antarctic Ice Sheet. Paleoceanographic conditions, specifically sea-surface temperatures and circulation patterns in the past, will be reconstructed by studying floral (diatom) composition, percent opal, percent carbonate, and the Germanium-Silicon ratio in deep ocean cores. This information is important as input to paleoclimatic models and models of interaction between oceans and the West Antarctic Ice Sheet.

该奖项支持了对南方沉积物岩心的研究， 海洋提取和解释古海洋学和古气候 信息. 该项目将审查 南大洋条件的冰川/间冰期变化可能 对南极洲西部冰盖的稳定性产生了影响。 古海洋学条件，特别是海面温度 以及过去的循环模式，将被重建， 研究花卉（硅藻）组成，蛋白石百分比，百分比 碳酸盐和深海岩心中的锗硅比。 这些信息作为古气候模型的输入是重要的， 海洋和南极西部冰之间相互作用的模式 床单。