Retrieval of Near-Surface Ice Sheet Properties Using the Global Precipitation Measurement (GPM) Radiometer Constellation
Retrieval of Near-Surface Ice Sheet Properties Using the Global Precipitation Measurement (GPM) Radiometer Constellation
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使用全球降水测量 (GPM) 辐射计星座检索近地表冰盖特性
DOI：
10.1109/igarss.2018.8518913
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
M. Aksoy
中科院分区：
文献类型：
--
作者：
M. Aksoy
最近的研究表明，宽带微波辐射计为了解冰盖动力学和预测未来冰盖变化所必需的重要冰盖地下特性提供了巨大的潜力。在这种辐射计的宽频谱范围内，不同的频率导致不同的电磁传播损耗，从而揭示冰盖不同深度的特征。本研究探讨了利用全球降水测量（GPM）星座作为单一宽带接收器来描绘冰盖的地下特性。结果表明，在南极洲的Concordia站和Vostok站进行的GPM亮度温度互校准测量可以提供距离地表几十米深的雪和冰的地下温度和密度特性的信息。
Recent studies have demonstrated that wideband microwave radiometers provide significant potential for profiling important subsurface properties of ice sheets necessary to understand ice sheet dynamics and predict future changes in ice coverage. Different frequencies within the wide spectra of such radiometers result in different electromagnetic propagation losses, thus reveal characteristics at different depths in ice sheets. This study explores the utilization of the Global Precipitation Measurement (GPM) constellation as a single wideband receiver to profile subsurface properties of ice sheets. Results indicated that intercalibrated GPM brightness temperature measurements over Concordia and Vostok stations in Antarctica can provide information regarding the subsurface temperatures and density properties of snow and ice down to a few tens of meters depth from surface.