Carbon Dioxide and Carbon Isotopes in the Taylor Dome and Vostok Ice Cores

泰勒圆顶和沃斯托克冰芯中的二氧化碳和碳同位素

• 批准号: 9615292
• 负责人: Martin Wahlen
• 金额: $ 28.5万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-05-01 至 1999-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9615292&HistoricalAwards=false
• 关键词: Carbon; Dioxide; Isotopes; Taylor; Dome

This award is for support of a program to reconstruct the record of atmospheric carbon dioxide (and the carbon-13 isotopes of carbon dioxide) over several intervals, including the Last Glacial Maximum-Holocene transition, interstadial episodes, the mid-Holocene, the last 1000 years and the penultimate glacial period, using ice from the Taylor Dome and Vostok ice cores. The major objective of this study is to investigate the phase relationship between variations of the greenhouse gases occluded in the ice cores and temperature changes (indicated by oxygen and deuterium isotopes) during the last deglaciation. In addition, the concentration of atmospheric carbon dioxide over the past 1000 years and during the mid-Holocene will be determined in these cores.

该奖项是对一个项目的支持，该项目利用泰勒穹顶和沃斯托克冰芯的冰，重建了几个时段的大气二氧化碳(以及二氧化碳的碳-13同位素)的记录，包括最后一次冰盛期-全新世过渡、间歇期、全新世中期、最后1000年和倒数第二次冰川期。这项研究的主要目的是研究冰芯中封闭的温室气体的变化与最后一次冰川消融期间的温度变化(由氧和氚同位素指示)之间的相位关系。此外，过去1000年和中全新世大气中二氧化碳的浓度将在这些岩芯中确定。