Climatic Change in the ENSO (El Nino-Southern Oscillation) and Lower-frequency Bands, Northeast Pacific Continential Margin

ENSO（厄尔尼诺-南方涛动）和低频段、东北太平洋大陆边缘的气候变化

• 批准号: 8707462
• 负责人: Roger Anderson
• 金额: $ 7.64万
• 依托单位: University of New Mexico
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-06-01 至 1989-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8707462&HistoricalAwards=false
• 关键词: Climatic; Change; ENSO; El; Nino

The objective of this research is to determine the frequency, associations, and phase relationships of proxy indicators of wind stress and upwelling and Pacific storm cyclogenesis as well as associated changes in carbon and oxygen isotopes. These variations will be fixed in time with the air of varves and accelerator mass spectroscopy 14-C dating. Newly discovered varved sediments on the continental slope off California contain evidence of climatic variation across a frequency spectrum ranging from one to several thousand years. There are few paleoclimatic records that can provide information as to changes occurring on the 2 to 10 year timescale of the El Nino - Southern Oscillation. Such a record may exist in the laminated sediments that occur on the California-Oregon continental margin. Anderson and Gardner will use these sediments to reconstruct the late Pleistocene and Holocene history of climate variability on these short timescales, an effort of direct interest to the Climate Dynamics Program and the Abrupt Climate Change initiative.

本研究的目的是确定 代理的频率、关联和相位关系 风应力、上升流和太平洋风暴的指标 气旋生成以及相关的碳和氧变化 同位素 这些变化将随着时间的推移而固定下来。 加速器质谱14-C测年。 新 在大陆坡发现了纹状沉积物 加州的气候变化证据 频率范围从一年到几千年。 很少有古气候记录能提供 关于2至10年时间尺度内发生的变化的信息 厄尔尼诺-南方涛动 这样的记录可能存在 在加利福尼亚-俄勒冈的层状沉积物中 大陆边缘 安德森和加德纳会用这些 重建晚更新世和全新世 在这些短时间尺度上气候变化的历史， 气候动力学计划的直接利益， 气候突变倡议。