探地雷达在大黄石地区冰区的应用

B. Ackermann, Craig M. Lee, D. McWethy, N. Chellman, J. McConnell
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引用次数: 2

摘要

冰原是历史事件不可替代的档案。随着非典型融化现象在世界各地的出现,能够量化和解释考古兴趣地区遗留下来的潜力是很重要的。一项探地雷达(GPR)调查在大黄石地区的一个考古生产冰原进行,以确定可能存在考古材料的沉积层。观察到许多反射表面,并将其解释为富含有机物的层,称为滞后层。探地雷达没有显示出在同一冰块同时收集的冰芯中容易识别的所有滞后面。调查中使用了400兆赫和900兆赫的天线,但都没有完全显示出冰片的基本轮廓。这很可能是由于收集数据的时间窗很短,而不是由于冰层深处雷达波的衰减。展望了该技术的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Application of Ground-Penetrating Radar at a Greater Yellowstone Area Ice Patch
Ice patches are an irreplaceable archive of past events. With atypical melting now occurring around the world, it is important to be able to quantify and interpret the potential of what remains in areas of archaeological interest. A ground-penetrating radar (GPR) survey was conducted at an archaeologically productive ice patch in the Greater Yellowstone Area to identify sediment layers in which archaeological materials may be present. Numerous reflective surfaces were observed and interpreted as being organic-rich layers called lags. GPR did not reveal all lag surfaces that were easily identifiable in an ice core that was collected concurrently at the same ice patch. 400 MHz and 900 MHz antennas were used in the survey, but neither fully revealed the basal profile of the ice patch. This is likely the result of the short time-window in which the data were collected, as opposed to attenuation of the radar waves deep in the ice. Future applications of the technology are explored.
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