Development of Glacier Lake Inventory in the Bhutan Himalayas Using PRISM and AVNIR-2 Onboard ALOS “DAICHI”

This study is describe to development of glacial lake inventory in the Bhutan Himalayas using the Panchromatic Remote Sensing Instrument for Stereo Mapping (PRISM) and the Advanced Visible and Near Infrared Radiometer type-2 (AVNIR-2) onboard the Advanced Land Observing Satellite (ALOS, nicknamed “Daichi”) to contribute to the evaluation of potential Glacial Lake Outburst Floods (GLOFs) and their mitigation. To mitigate the damage of GLOFs, investigation into the melting process of glaciers and the development and expansion processes of it and evaluations of outburst potential of glacial lakes and triggers of GLOF are necessary. This paper introduces to develop new glacial lake inventory using ALOS. PRISM can be generated precise digital surface model (DSM) using stereo capability. Based on the validation of PRISM DSMs in snow and ice region, the three-dimensional glacial lake inventory is generating with pan-sharpened ortho images by PRISM and AVNIR-2.