The Origin of The Semi-Precession Cycle in The Tropical Atlantic: A Pilot Study of the Application of Bispectral Techniques

热带大西洋半进动周期的起源：双谱技术应用的初步研究

• 批准号: 0241908
• 负责人: Ana Ravelo
• 金额: $ 6万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-02-15 至 2005-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0241908&HistoricalAwards=false
• 关键词: Origin; Semi; Precession; Cycle; Tropical

This project is a pilot study to test the idea that sub-Milankovitch variability results from non-linear response of the climate system to periodic Milankovitch-band forcing. In other words the hypothesis is that non-linear response of the climate system transfers Milankovitch-band forcing to a different frequency. The hypothesis will be tested by performing bispectral analyses on a record of faunal variation and a benthic carbon isotope record from 0 - 1 Ma obtained from ODP Site 927.

该项目是一项试验性研究，以检验次米兰科维奇变率是气候系统对周期性米兰科维奇波段强迫的非线性响应的结果。 换句话说，假设是气候系统的非线性响应将米兰科维奇波段强迫转移到不同的频率。 该假设将进行双谱分析的动物群的变化记录和底栖生物的碳同位素记录从0 - 1马从ODP站点927。