Seasonal Oxygen Isotope Records from Greenland Ice Cores as Indicators of Climate Variability

格陵兰冰芯的季节性氧同位素记录作为气候变化的指标

• 批准号: 9423513
• 负责人: Clinton Rowe
• 金额: $ 11.44万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-06-01 至 1998-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9423513&HistoricalAwards=false
• 关键词: Seasonal; Oxygen; Isotope; Records; Greenland

This award is for support for a two year project to use seasonal oxygen-isotope records from existing ice cores to provide a means of linking the surface of the Greenland ice sheet to the global climate system through the analysis of climatic data, atmospheric circulation patterns and other environmental indicators. The proposed research will investigate the spatial and temporal variability of seasonal oxygen isotope signals from a geographically diverse set of ice cores, determine their applicability as indicators of regional climatic conditions, and determine the ice-climate relationship through intercomparison of ice core oxygen isotopic records, instrumental climate records and atmospheric circulation from the recent past. The statistical methods to be used include principle component analysis, linear trend analysis and stepwise multiple regression of both surface temperature and circulation anomalies.

该奖项是为了支持一个为期两年的项目，该项目利用现有冰芯的季节性氧同位素记录，通过分析气候数据、大气环流模式和其他环境指标，提供一种将格陵兰冰盖表面与全球气候系统联系起来的方法。本研究将研究不同地理位置的冰芯季节氧同位素信号的时空变化，确定其作为区域气候条件指标的适用性，并通过比较冰芯氧同位素记录、仪器气候记录和最近的大气环流来确定冰-气候关系。统计方法包括主成分分析、线性趋势分析和逐步多元回归分析。