Surging Dynamics of Glaciers in the Hunza Valley under an Equilibrium Mass State since 1990

• DOI: 10.3390/rs12182922
• Publication Date: 2020-09-09T13:01:09Z
• Authors: Kunpeng Wu; Shiyin Liu; Zongli Jiang; Yu Zhu; Fuming Xie; Yongpeng Gao; Ying Yi; Adnan Ahmad Tahir; Saifullah Muhammad
• Keywords: Glacier mass balance; Accumulation zone; Glacier ice accumulation

Previous studies have shown that glacier changes were heterogeneous in the western Karakoram, with coexistence of retreating, advancing, and surging glaciers. However, it remains unclear mechanisms driving these changes. Based on Shuttle Radar Topography Mission (SRTM) DEM TerraSAR-X/TanDEM-X images (2014), this study presents surface height Hunza Basin employing method differential synthetic aperture radar interferometry (DInSAR). A slight negative mass balance was observed during 2000–2014. Surge-type glaciers would not an obvious effect overall regional assessments over long-time scales. Further, velocities estimated from Landsat for period 1990–2018 by utilizing published data sets images. Compared to annual velocities, 22 surge events seven surge-type Basin. Glacier flow can be attributed thermally hydrologically control, geomorphological characteristics different individuals. This gives us a new insight into situation “Karakoram anomaly” under background loss high mountains Asia (HMA).