ANNOUNCEMENTS
The present study investigates the spatial and temporal variations in surface flow velocity of selected glaciers in the Karakoram region using remote sensing techniques. Glaciers in this region exhibit anomalous behaviour compared to global trends, with several showing signs of stability or surge-type movement. Utilizing multi-temporal satellite imagery from Landsat and Sentinel-2 (2015–2024), glacier surface displacement was estimated through feature tracking techniques in COSI-CORR. The analysis focused on major glaciers such as Baltoro, Biafo, Siachen, Yazgil, Khurdopin, and Rimo, assessing annual and seasonal flow variations along their central flowlines. The results revel distinct spatial and temporal variability in glacier surface motion, and the analysis was structured in three parts. (1) The annual surface flow velocity estimation from 2015 to 2024 of Biafo, Baltoro, and Siachen glacier. (2) The monthly surface flow estimation of surge of Rimo Glacier from 2018-2020, which revel maximum displacement in July 2019. (3) Two-decade surface flow velocity estimation of Yazgil and Khurdopin glacier from 1989 to 2015. The findings contribute to a deeper understanding of glacier behaviour in the Karakoram. This research underscores the utility of geospatial technologies in long-term glacier monitoring and cryosphere studies.
