TY - RPRT TI - Machine Learning Eliminates Reanalysis Warm Bias and Reveals Weaker Winter Surface Cooling Over Arctic Sea Ice AU - Hossain, Akil [Alfred Wegener Institute for Polar and Marine Research, Bremerhaven (Germany)] (ORCID:0000000183403056) AU - Keil, Paul [Helmholtz Centre Hereon, Geesthacht (Germany); Helmholtz AI, Munich (Germany); Deutsches Klimarechenzentrum GmbH (DKRZ), Hamburg (Germany)] (ORCID:0000000265024148) AU - Grover, Harsh [Helmholtz Centre Hereon, Geesthacht (Germany); Helmholtz AI, Munich (Germany); Deutsches Klimarechenzentrum GmbH (DKRZ), Hamburg (Germany)] AU - Brooks, Ian M. [University of Leeds (United Kingdom)] (ORCID:0000000250511322) AU - Cox, Christopher J. [National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). NOAA Physical Sciences Laboratory (PSL)] (ORCID:0000000322037173) AU - Gallagher, Michael R. [National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). NOAA Physical Sciences Laboratory (PSL); University of Colorado, Boulder, CO (United States). Cooperative Institute for Research in Environmental Sciences (CIRES)] AU - Granskog, Mats A. [Norwegian Polar Institute (NPI), Tromso (Norway). Fram Centre] (ORCID:0000000250354347) AU - Guy, Heather [University of Leeds (United Kingdom)] (ORCID:0000000335250766) AU - Hudson, Stephen R. [Norwegian Polar Institute (NPI), Tromso (Norway). Fram Centre] (ORCID:0000000264989167) AU - Persson, P. Ola G. [National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). NOAA Physical Sciences Laboratory (PSL); University of Colorado, Boulder, CO (United States). Cooperative Institute for Research in Environmental Sciences (CIRES)] AU - Shupe, Matthew D. [National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). NOAA Physical Sciences Laboratory (PSL); University of Colorado, Boulder, CO (United States). Cooperative Institute for Research in Environmental Sciences (CIRES)] (ORCID:0000000209739982) AU - Tjernström, Michael [Stockholm University (Sweden)] (ORCID:0000000269087410) AU - Vüllers, Jutta [Karlsruhe Institute of Technology (KIT) (Germany)] AU - Walden, Von P. [Washington State University, Pullman, WA (United States)] (ORCID:0000000338574416) AU - Pithan, Felix [Alfred Wegener Institute for Polar and Marine Research, Bremerhaven (Germany); University of Bremen (Germany)] (ORCID:0000000343823077) PY - 2026 DO - 10.1029/2025gl121289 UR - https://www.osti.gov/biblio/3374888 ID - 3374888 ER -