| 用雷达电磁波探测研究南极冰盖浅层散射特征:以中山站至Dome A冰盖断面为例 |
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| 引用本文： | 蒋芸芸,孙波,柯长青,崔祥斌,唐学远,郭井学,张向培.用雷达电磁波探测研究南极冰盖浅层散射特征:以中山站至Dome A冰盖断面为例[J].极地研究,2009,21(1):48-59. |
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| 作者姓名： | 蒋芸芸 孙波 柯长青 崔祥斌 唐学远 郭井学 张向培 |
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| 作者单位： | 南京大学地理与海洋科学学院; 中国极地研究中心; |
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| 基金项目： | 国际极地年中国行动计划，国家科技支撑项目，国家高技术研究发展计划(863计划)，国家自然科学基金 |
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| 摘 要： | 本研究运用双频雷达(60MHz和179MHz)获取的南极中山站-Dome A断面的雷达回波探测数据,对冰盖浅部100-700m的雷达内部反射层和接收功率变化定量计算分析表明,60MHz的雷达回波能量比179MHz衰减得更快;中山站-Dome A断面冰盖浅层700m以上的雷达反射层形成的主导原因是冰密度的变化;断面上不同测站点间同一深度的接收功率差值达到10dB,表明冰盖浅层散射存在显著差异。
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| 关 键 词： | 冰雷达 中山站-Dome A断面 东南极 冰盖浅部 散射 冰雷达 中山站&mdash Dome A断面 东南极 冰盖浅部 散射 |
SCATTERING FEATURES ANALYSES OF THE SHALLOW ANTARCTIC ICE SHEET BASED ON ICE-PENETRATING RADAR METHOD:A CASE-STUDY ALONG THE ZHONGSHAN STATION-DOME A TRANSECT |
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| Jiang Yunyun,Sun Bo,Ke Changqing,Cui Xiangbin,Tang Xueyuan,Guo Jingxue,Zhang Xiangpei.SCATTERING FEATURES ANALYSES OF THE SHALLOW ANTARCTIC ICE SHEET BASED ON ICE-PENETRATING RADAR METHOD:A CASE-STUDY ALONG THE ZHONGSHAN STATION-DOME A TRANSECT[J].Chinese Journal of Polar Research,2009,21(1):48-59. |
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| Authors: | Jiang Yunyun Sun Bo Ke Changqing Cui Xiangbin Tang Xueyuan Guo Jingxue Zhang Xiangpei |
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| Institution: | 1.School of Geographic and Oceanographic Sciences of Nanjing University; Nanjing 210093; China;2.Polar Research Institute of China; Shanghai 200136; China |
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| Abstract: | Radio-echo detecting ice sheet is one of the most significant progresses in Antarctic ice sheet researches in recent 20 years. Ice-penetrating radar is a convenient and significant method to image and analyze the properties of Antarctic ice sheet internal structure. This research used the two-frequency (60 MHz and 179 MHz) radar to detect the radar internal reflection strata. The variations of the received power within 100—700 m of the ice sheet surface along the Zhongshan-Dome A transect showed that: the r... |
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| Keywords: | ice-penetrating radar Zhongshan-Dome A transect shallow ice sheet scattering East Antarctica |
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