Regional Climate Change, Melt Waters, and Lake Levels in theLaurentian Great Lakes

区域气候变化、融水和劳伦森五大湖的湖泊水位

• 批准号: 9415994
• 负责人: David Rea
• 金额: $ 30.9万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-05-01 至 1999-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9415994&HistoricalAwards=false
• 关键词: Regional; Climate; Change; Melt; Waters

9415994 Rea The project aims at establishing a direct tie between regional climatic and lake histories by linking the paleolimnological record of the lake fluctuations, melt water and microfauna and flora. It will extend the paleoclimatic record, especially the annual variability record back to Younger Drayas. Oxygen isotope measurements on ostracode valves, and faunal studies will establish a temporal framework. AMS dates will provide absolute chronology. Synthetic seismograms of core sediments will link them to seismic records. Physical properties measurements and pollen studies will tie the history of lake levels to climatic history. A coring, side-scan and seismic profiling cruise is planned in mid 1995 in Lakes Michigan and Huron. ***

9415994 Rea该项目旨在通过将湖泊波动、融水和微型动植物的古湖泊学记录联系起来，在区域气候和湖泊历史之间建立直接联系。它将古气候记录，特别是年变率记录延伸到新德拉亚期。介形类阀的氧同位素测量和区系研究将建立一个时间框架。AMS日期将提供绝对的年表。岩心沉积物的合成地震记录将把它们与地震记录联系起来。物理特性测量和花粉研究将把湖泊水位的历史与气候历史联系起来。计划于1995年中期在密歇根湖和休伦湖进行一次取心、侧扫和地震剖面巡航。＊＊＊