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

该奖项是对一个为期两年的项目的支持，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，提供将格陵兰冰盖表面与全球气候系统联系起来的手段。拟议的研究将调查来自地理上不同的一组冰芯的季节性氧同位素信号的空间和时间变异性，确定它们作为区域气候条件指标的适用性，并通过相互比较最近过去的冰芯氧同位素记录、仪器气候记录和大气环流来确定冰与气候的关系。统计方法包括地表温度和环流异常的主成分分析、线性趋势分析和逐步多元回归。

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.