GlacierNet2: A hybrid Multi-Model learning architecture for alpine glacier mapping

FOS: Computer and information sciences Physical geography Computer Science - Machine Learning Electrical and Electronics Alpine glacier 0211 other engineering and technologies 02 engineering and technology 01 natural sciences Machine Learning (cs.LG) Glacier mapping GlacierNet Systems and Communications Other Electrical and Computer Engineering FOS: Electrical engineering, electronic engineering, information engineering GE1-350 Computer Engineering 0105 earth and related environmental sciences Image and Video Processing (eess.IV) Optics Electrical and Computer Engineering Remote sensing Electrical Engineering and Systems Science - Image and Video Processing 15. Life on land GB3-5030 Environmental sciences Debris-covered 13. Climate action Snow-covered Electromagnetics and Photonics
DOI: 10.1016/j.jag.2022.102921 Publication Date: 2022-07-20T16:40:03Z
ABSTRACT
In recent decades, climate change has significantly affected glacier dynamics, resulting in mass loss and an increased risk of glacier-related hazards including supraglacial proglacial lake development, as well catastrophic outburst flooding. Rapidly changing conditions dictate the need for continuous detailed observations analysis climate-glacier dynamics. Thematic quantitative information regarding geometry is fundamental understanding forcing sensitivity glaciers to change, however, accurately mapping debris-cover (DCGs) notoriously difficult based upon use spectral conventional machine-learning techniques. The objective this research improve earlier proposed deep-learning-based approach, GlacierNet, which was developed exploit a convolutional neural-network segmentation model outline regional DCG ablation zones. Specifically, we enhanced GlacierNet2 architecture thatincorporates multiple models, automatic post-processing, basin-level hydrological flow techniques DCGs such that it includes both accumulation Experimental evaluations demonstrate improves estimation zone allows high level intersection over union (IOU: 0.8839) score. provides complete (both zone) outlines at scales, with overall IOU score 0.8619. This crucial first step automating can be used accurate modeling or mass-balance analysis.
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