This study uses satellite microwave observations to examine the spatiotemporal variations of melting ice sheets on the slopes of Antarctica. These observations were focused on the coastal marginal zone and inland traverse route near Syowa Station. Melting was detected using a 36 GHz vertical polarization diurnal amplitude variation (DAV). Data from the Advanced Microwave Scanning Radiometer for EOS (AMSR-E) and AMSR2 during 2002–2011 and 2012–2017, respectively, showed DAV variations over time. It was estimated that the greatest melting extent occurred during the 2003/2004 summer; the DAV rose even in the inland areas. In contrast, DAV decreased during rain periods, which was reported by the Japanese Antarctic Research Expedition in 2004 and 2012. This is due to the rise in nighttime brightness temperature (TB). whereas the signal from rain was limited to the lower area. Coastal zones showed a low TB. The low coastal emissions may be attributed to the refrozen ice lenses under the coastal snow layers. The DAV can be significant as the contrast between daytime and nighttime increases from this low TB zone.

这项研究使用卫星微波观测来检查南极斜坡上融化的冰盖的时空变化。这些观测主要集中在Syowa站附近的沿海边缘带和内陆横穿路线。使用36 GHz垂直极化昼间振幅变化（DAV）检测到融解。先进的EOS微波扫描辐射仪（AMSR-E）和AMSR2在2002–2011年和2012–2017年的数据分别显示了DAV随时间的变化。据估计最大的融化程度发生在2003/2004年夏季。DAV甚至在内陆地区也上升了。相比之下，日本南极研究考察队在2004年和2012年报告说，在雨季DAV下降了。这是由于夜间亮度温度（TB）升高。而雨水的信号仅限于下部区域。沿海地区结核病低。沿海低排放量可能归因于沿海雪层下的冰晶冻结。DAV可能很重要，因为从这个低TB区域开始，白天和晚上之间的对比度增加了。