Abstract Remote sensing based geodetic observations can be used as alternatives data to map glacier height changes because the harsh environment complicates in situ observations. In this study, we analysed five pairs of X-band bistatic TerraSAR-X/TanDEM-X images from 2011 and 2014 for Mt. Everest (Qomolangma). Glacier height changes were derived using the D-InSAR method respect to SRTM DEM of 2000. An iterative D-InSAR method using multi-baseline bistatic SAR interferograms was employed, which increased reliability and accuracy of glacier height changing observations. From 2000 to ~ 2012, the geodetic glacier mass balance for the Mt. Everest and the surrounding region was − 0.38 ± 0.04 m w.e. a− 1. The spatial pattern of the glacier mass loss was heterogeneous. The regional heterogeneity may possibly reflect debris-covering rates, terminating type, temperature rising rates and glacier flow rates. Comparison to long-period geodetic glacier mass balance data provided by previous studies since 1970 revealed that our results showed more rapid increases in the glacier mass loss rates after 2000 in the area around Khumbu Glacier in the southern slope of the Mt. Everest, whereas glacier mass loss rates kept stable in the Rongbuk Catchment at its northern slope.

中文翻译：

---

在山上消减的非均质年代际冰川。珠穆朗玛峰（珠穆朗玛峰）2000~2012年基于多基线双基地SAR干涉测量

摘要 基于遥感的大地测量可作为替代数据来绘制冰川高度变化图，因为恶劣的环境使原位观测变得复杂。在这项研究中，我们分析了 2011 年和 2014 年的五对 X 波段双基地​​ TerraSAR-X/TanDEM-X 图像。珠穆朗玛峰（珠穆朗玛峰）。冰川高度变化是使用D-InSAR 方法推导的，相对于2000 年的SRTM DEM。采用了使用多基线双基地SAR 干涉图的迭代D-InSAR 方法，提高了冰川高度变化观测的可靠性和准确性。2000~2012年间，大地冰川质量平衡。珠穆朗玛峰及周边地区为 − 0.38 ± 0.04 m we a− 1。冰川质量损失的空间格局是不均匀的。区域异质性可能反映了碎片覆盖率、终止类型、升温速率和冰川流速。与 1970 年以来先前研究提供的长期大地测量冰川质量平衡数据的比较表明，我们的结果表明，2000 年之后，山南坡昆布冰川周围地区的冰川质量损失率增长更快。珠穆朗玛峰，而北坡绒布流域的冰川质量损失率保持稳定。