Passive Microwave Remote Sensing for Paleoclimate Indicators at Siple Dome, Antarctica

该奖项旨在支持一个研究项目，该项目涉及使用被动微波数据来验证冰川学研究中使用的关键古气候指标。本研究的具体贡献是：1)通过卫星无源微波数据与野外观测相结合，确定了冰芯中可作为可见年度地层标志的白垩复合体的时间和空间范围；2)利用校准的被动微波亮度温度监测现场温度趋势，并将这些趋势与雪坑和/或冰芯的氧和氢稳定同位素比值剖面提供的替代温度相关联。这项工作将在南极洲的simple Dome进行，作为与那里的冰芯钻探计划相关的实地活动的一部分。

This award is for support for a research program involving the use of passive microwave data to validate key paleoclimate indicators used in glaciologic research. The specific contributions of this research are: 1) to define the timing and spatial extent of hoar complexes, which may serve as visible, annual stratigraphic markers in ice cores, through a combination of satellite passive microwave data and field observations; and 2) to monitor temperature trends at the site with calibrated passive microwave brightness temperatures and to correlate these trends to proxy temperatures provided by oxygen and hydrogen stable isotope ratio profiles from snow pits and/or ice cores. The work will take place at Siple Dome, Antarctica as part of the field activities associated with the ice core drilling program there.