This study investigates stagnation conditions of the Pensilungpa glacier, western Himalaya. Multiple glacier parameters (length, area, debris extent and thickness, snowline altitude (SLA), velocity, downwasting and ice cliffs) were studied using field measurements (2016–18), high-resolution imagery from GoogleEarth (2013–17) and spaceborne Landsat, ASTER and SRTM data (1993–2017) to comprehend the glacier's current state. Results show a moderate decrease in length (6.62 ± 2.11 m a−1) and area (0.11 ± 0.03% a−1), a marked increase in SLA (~6 m a−1) and debris cover (2.86 ± 0.29% a−1) and a slowdown of ~50% during 1993–2016. Notable thinning of −0.88 ± 0.04 m a−1 was observed between 2000 and 2017 showing a similar trend as field measurements during 2016–17 (−0.88 m) and 2017–18 (−1.54 m). Further, results reveal a stagnation of the lower ablation zone (LAZ). Less mass supply and heterogeneous debris growth (6.67 ± 0.41% a−1) over the previous decade resulted in slowdown, margin insulation and slope-inversion, leading to stagnation. Stagnation of LAZ caused bulging in the dynamic upper ablation zone and favored the development of supraglacial ponds and ice cliffs. Ice cliffs have grown significantly (48% in number; 41% in area during 2013–17) and their back-wasting now dominates the ablation process.

本研究调查了喜马拉雅西部 Pensilungpa 冰川的停滞状况。使用现场测量 (2016-18)、GoogleEarth (2013-17) 和星载的高分辨率图像研究了多个冰川参数（长度、面积、碎片范围和厚度、雪线高度 (SLA)、速度、下坡和冰崖） Landsat、ASTER 和 SRTM 数据 (1993-2017) 以了解冰川的当前状态。结果显示长度 (6.62 ± 2.11 ma -1 ) 和面积 (0.11 ± 0.03% a -1 )适度减少，SLA (~6 ma -1 ) 和碎片覆盖率 (2.86 ± 0.29% a -1 ) 显着增加) 并且在 1993-2016 年间放缓了约 50%。-0.88 ± 0.04 ma -1显着变薄在 2000 年至 2017 年期间观察到与 2016-17 年（-0.88 m）和 2017-18 年（-1.54 m）期间的现场测量结果相似的趋势。此外，结果显示下消融区 (LAZ) 停滞不前。在过去十年中，质量供应减少和异质碎片增长（6.67 ± 0.41% a -1 ）导致减速、边缘绝缘和坡度反转，导致停滞。LAZ的停滞导致动态上消融区膨胀，有利于冰上池塘和冰崖的发展。冰崖显着增长（数量为 48%；2013-17 年期间面积为 41%），它们的后退消耗现在主导着消融过程。