Print Email Facebook Twitter Where the White Continent Is Blue Title Where the White Continent Is Blue: Deep Learning Locates Bare Ice in Antarctica Author Tollenaar, Veronica (Vrije Universiteit Brussel; Swiss Federal Institute of Technology) Zekollari, Harry (Vrije Universiteit Brussel; ETH Zürich; Swiss Federal Institute for Forest, Snow and Landscape Research) Pattyn, Frank (Vrije Universiteit Brussel) Rußwurm, Marc (Swiss Federal Institute of Technology; Wageningen University & Research) Kellenberger, Benjamin (Yale University) Lhermitte, S.L.M. (TU Delft Mathematical Geodesy and Positioning; Katholieke Universiteit Leuven) Izeboud, M. (TU Delft Civil Engineering & Geosciences) Tuia, Devis (Swiss Federal Institute of Technology) Faculty Civil Engineering & Geosciences Date 2024 Abstract In some areas of Antarctica, blue-colored bare ice is exposed at the surface. These blue ice areas (BIAs) can trap meteorites or old ice and are vital for understanding the climatic history. By combining multi-sensor remote sensing data (MODIS, RADARSAT-2, and TanDEM-X) in a deep learning framework, we map blue ice across the continent at 200-m resolution. We use a novel methodology for image segmentation with “noisy” labels to learn an underlying “clean” pattern with a neural network. In total, BIAs cover ca. 140,000 km2 (∼1%) of Antarctica, of which nearly 50% located within 20 km of the grounding line. There, the low albedo of blue ice enhances melt-water production and its mapping is crucial for mass balance studies that determine the stability of the ice sheet. Moreover, the map provides input for fieldwork missions and can act as constraint for other geophysical mapping efforts. Subject Antarcticablue icedeep learningnoisy labels To reference this document use: http://resolver.tudelft.nl/uuid:2f557067-9e37-4271-a499-ce469d51d8fc DOI https://doi.org/10.1029/2023GL106285 ISSN 0094-8276 Source Geophysical Research Letters, 51 (3) Part of collection Institutional Repository Document type journal article Rights © 2024 Veronica Tollenaar, Harry Zekollari, Frank Pattyn, Marc Rußwurm, Benjamin Kellenberger, S.L.M. Lhermitte, M. Izeboud, Devis Tuia Files PDF Geophysical_Research_Lett ... Ice_in.pdf 1.34 MB Close viewer /islandora/object/uuid:2f557067-9e37-4271-a499-ce469d51d8fc/datastream/OBJ/view