Stratigraphy, chronology, and paleoclimatology of Hawaiian Eolian Sediments

夏威夷风成沉积物的地层学、年代学和古气候学

• 批准号: 8904081
• 负责人: Stephen Porter
• 金额: $ 2.93万
• 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: 1989
• 资助国家: 美国
• 起止时间: 1989-09-01 至 1992-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8904081&HistoricalAwards=false
• 关键词: Stratigraphy; chronology; paleoclimatology; Hawaiian; Eolian

The paleoclimatic record on Hawaii contains evidence of recurring ice-cap glaciation that has been correlated with the last 200,000 years of the marine oxygen isotope record. Associated with these glacial deposits are sedimentary deposits indicative of past wind intensity and direction. This proposal requests support for a field program to study these eolian sediments, interbedded paleosols, and tephras in order to reconstruct the glacial-interglacial history of wind direction and intensity for this region. The results will be used to test the validity of GCM wind simulations for the last glacial maximum. This project will provide the first constraints on past wind intensity and direction in the subtropical region of the Pacific basin.

夏威夷的古气候记录包含了 反复出现的冰帽冰川作用， 海洋氧同位素记录的最后20万年 与这些冰川沉积物有关的是沉积物 显示过去的风力和风向 这项建议 请求支持一个实地项目， 沉积物、夹层古土壤和火山灰， 重建冰期-间冰期的风向历史 和强度。 结果将用于测试 末次冰期GCM风模拟的有效性 最大. 该项目将提供第一个限制过去 风的强度和方向在亚热带地区的 太平洋盆地。