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

南极洲 Siple Dome 古气候指标的被动微波遥感

• 批准号: 9526566
• 负责人: Robert Bindschadler
• 金额: --
• 依托单位: NASA/GODDARD SPACE FLIGHT CENTER
• 依托单位国家: 美国
• 项目类别: Interagency Agreement
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-07-01 至 1999-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9526566&HistoricalAwards=false
• 关键词: Passive; Microwave; Remote; Sensing; Paleoclimate

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.

该奖项旨在支持一项研究计划，该计划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）通过卫星被动微波数据和野外观测相结合，确定了冰核中可作为可见的年度地层标志的白霜复合体的时间和空间范围;和2）用校准的被动微波亮度温度监测现场的温度趋势，并将这些趋势与氧气提供的代理温度相关联，来自雪坑和/或冰芯的氢稳定同位素比率剖面。这项工作将在南极洲的Siple 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。