A first chronology for the East Greenland Ice core Project (EastGRIP)
A first chronology for the East Greenland Ice core Project (EastGRIP)
复制标题
东格陵兰冰芯项目 (EastGRIP) 的第一个年表
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
S. Kipfstuhl
中科院分区：
文献类型：
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作者：
Seyedhamidreza Mojtabavi;F. Wilhelms;S. Rasmussen;N. Karlsson;S. Kipfstuhl
极地冰芯是独特的档案记录刚刚过去的大气条件。最突出的是，它们提供了过去温度演变、火山爆发、温室气体浓度和许多其他决定环境条件的参数的重建。冰芯的年代测定为有记录的过去气候条件提供了相应的年表。在这里，我们建立了第一个年表东格陵兰冰芯项目（EGRIP）核心的基础上匹配的火山起源的电导率峰值记录的介电剖面（DEP）在EGRIP，NGRIP和NEEM冰芯格陵兰。我们的初步定年依赖于2005年格陵兰冰芯年表（GICC 05）从NGRIP和NEEM核心转移到2017年野外季节EGRIP核心的最高352米。
Polar ice cores are unique archives recording immediate past atmospheric conditions. They provide, most prominently, reconstructions of past temperature evolution, volcanic eruptions, greenhouse gas concentrations and many other parameters that determine the environmental conditions. The dating of the ice core provides the respective chronology to the recorded past climate conditions. Here, we establish a first chronology for the East Greenland Ice-core Project (EGRIP) core based on matching of electrical conductivity peaks of volcanic origin as recorded by dielectric profiling (DEP) in the EGRIP, NGRIP and NEEM ice cores from Greenland. Our initial dating relies on the transfer of the Greenland Ice Core Chronology 2005 (GICC05) from the NGRIP and NEEM cores to the uppermost 352 m of the EGRIP core from the 2017 field season.