18O/16O Record of the Greenland Summit (GISP-II) Core.

18O/16O 格陵兰峰会（GISP-II）核心记录。

• 批准号: 8822073
• 负责人: Pieter Grootes
• 金额: $ 88.41万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-01-15 至 1994-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8822073&HistoricalAwards=false
• 关键词: 18O; 16O; Record; Greenland; Summit

The 18o/16o ratio of the ice in a core through the central part of the Greenland ice sheet provides a uniquely detailed record of paleoenvironmental conditions that may extend back as far as 200,000 years. This project will study the 18o/16o ratio to determine the characteristics of the major global climate cycles and the cause and effect relationships between the various environmental parameters, such as temperature, concentration of CO2 and CH4, dustiness, and cation/anion concentration, that change with climate. A better definition of the processes that determine climate change will provide better predictions of future climate change. The location of intervals of major and/or rapid climate change will be the focus of detailed multiparameter studies, This study will provide a preliminary isotope stratigraphy of the core. The 18o/16o research is part of the multiparameter multi-investigator GISP II project. A special collaboration with J.W.C. White, University of Colorado, will provide a record of deuterium excess (d").

核心中冰块中冰的18o/16o比率通过格陵兰冰盖的中部，提供了古环境条件的独特详细记录，可能会延伸至20万年。 该项目将研究18o/16o的比率，以确定主要全球气候周期的特征以及各种环境参数之间的因果关系，例如温度，二氧化碳和CH4的浓度，尘土和阳离子/阴离子浓度，这些浓度随着气候的变化。 对确定气候变化的过程的更好定义将为未来气候变化提供更好的预测。 主要和/或快速气候变化的间隔的位置将是详细的多参数研究的重点，本研究将提供核心的初步同位素地层。 18o/16o研究是多参数多入侵器GISP II项目的一部分。 与J.W.C.特别合作怀特，科罗拉多大学，将提供氘过剩的记录（D”）。