Interpretation of GISP2 Electrical Conductivity Record

格陵兰冰盖项目2 （GISP2）从格陵兰中部恢复了一个冰芯，覆盖的时间至少比现在早10万年。该站点的高积累速率使其成为研究气候机制和变率的理想记录。电导率是冰的酸碱平衡的函数，沿着核心连续测量，并提供了在核心上进行的许多测量中最高的时间分辨率。现有的电导率记录将与其他记录一起进行解释。具体目标是；1)年代际和世纪尺度气候变化研究；2)建立GISP2岩芯火山活动记录年代学；3)提高对峰顶区冰流的认识；4)完善GISP2岩芯的定年和积累记录；5)建立GISP2岩芯记录的北半球生物质燃烧年代学。GISP2是NSF北极系统科学计划的一个组成部分。

The Greenland Ice Sheet Project 2 (GISP2) has recovered an ice core from central Greenland covering a time that extends at least 100,000 years before present. The high accumulation rate at the site makes it an ideal record for studying climate mechanisms and variability. The electrical conductivity, which is a function of the acid/base balance of the ice, has been measured continuously along the core and provides the highest time resolution of the many measurements which have been made on the core. The existing conductivity record will be interpreted in conjunction with other records. Specific goals are; 1) Investigation of decadal and century scale climate change, 2) Develop a chronology of volcanic activity record in the GISP2 core, 3) Improve the understanding of ice flow in the Summit region, 4) Improve the dating and accumulation record of the GISP2 core, and 5) Develop a chronology of northern hemisphere biomass burning as recorded by the GISP2 core. The GISP2 is a component of the NSF Arctic System Science Program.