Changes in Glacial Circulation and Biogeochemistry Associated with Changing Southern Ocean Winds

与南大洋风变化相关的冰川环流和生物地球化学变化

• 批准号: 0081686
• 负责人: Daniel Sigman
• 金额: $ 40.59万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2004-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0081686&HistoricalAwards=false
• 关键词: Changes; Glacial; Circulation; Biogeochemistry; Associated

Summary: This ESH project will address the hypothesis that shifts of the westerly winds in the South Atlantic resulted in changes of primary production during the last glacial period. A combined circulation and biogeochemical model will be developed, using 13N as one of the tracers for production. Results of the model will first be compared against modern 13N distributions, and the model will then be applied to alternate climate scenarios for the last glacial using sedimentary 13N as test prodictions.

摘要：该 ESH 项目将解决南大西洋西风的变化导致末次冰期初级生产变化的假设。 将开发联合循环和生物地球化学模型，使用 13N 作为生产示踪剂之一。 该模型的结果将首先与现代 13N 分布进行比较，然后该模型将使用沉积 13N 作为测试预测应用于末次冰期的替代气候情景。