%0 Journal Article %T Ice front positions for Greenland glaciers (2002–2021): a spatially extensive seasonal record and benchmark dataset for algorithm validation %A Lu, X. %A Jiang, L. %A Li, D. %A Liu, Y. %A Sole, A. J. %A Livingstone, S. J. %J Earth Syst. Sci. Data %D 2026 %8 April 13 %V 18 %N 4 %I Copernicus Publications %@ 1866-3516 %F Lu2026 %R 10.5194/essd-18-2635-2026 %U https://essd.copernicus.org/articles/18/2635/2026/ %U https://essd.copernicus.org/articles/18/2635/2026/essd-18-2635-2026.pdf %U https://doi.org/10.5194/essd-18-2635-2026 %P 2635-2652