TY - GEN AU - Alan Geer BT - ECMWF Newsletter DA - 10/2023 DO - 10.21957/agh93vs26 M1 - 177 PY - 2023 SE - Earth System Science SP - 14 EP - 21 T2 - ECMWF Newsletter TI - Combining machine learning and data assimilation to estimate sea ice concentration UR -   ER -