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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Internal Layer Tracing and Age–Depth Relationship From the Ice Divide Toward Jakobshavn, Greenland
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Internal Layer Tracing and Age–Depth Relationship From the Ice Divide Toward Jakobshavn, Greenland

机译：从冰向格陵兰雅各布港的内部层追踪和年龄-深度关系

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摘要

Signs of long-term glaciological processes and past ice-sheet structure are preserved in the internal layer manifestations of the Greenland ice sheet. Internal layer data have been collected over a substantial portion of the Greenland ice sheet using the University of Kansas ice-sounding radar. In this letter, these layers are traced along thousands of kilometers of flight lines from the ice divide toward Jakobshavn, which is the most active glacier in Greenland. The authors determine the traced radar layers' age at the Greenland Ice Core Project (GRIP) site using the GRIP core age-depth relationship. Inasmuch as the depth varies spatially for a layer of a specific dated age, an age-depth relationship for each location along the flight lines of this letter can be found using the traced layers. Thirty-one points where flight lines cross over one another were analyzed. From the flight line crossover analysis, a 9-m maximum difference (< 1%) was found
机译：格陵兰冰盖的内层表现保留了长期的冰川作用和过去的冰盖结构的迹象。使用堪萨斯大学的冰探测雷达已经在格陵兰冰原的大部分区域收集了内层数据。在这封信中，这些层是沿着数千公里的飞行路线追踪的，从冰川到冰河一直流向格陵兰岛最活跃的冰川雅各布港。作者使用GRIP核心年龄-深度关系来确定格陵兰冰芯项目（GRIP）站点的被跟踪雷达层的年龄。由于深度对于特定日期年龄的层在空间上是变化的，因此可以使用所跟踪的层找到沿该字母的飞行线的每个位置的年龄-深度关系。分析了飞行路线彼此交叉的31个点。通过飞行线交叉分析，发现最大相差9米（<1％）

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