TY - GEN KW - newsletter AU - Erik Andersson BT - ECMWF Newsletter C1 - Research DA - 2007 DO - 10.21957/d88uiso9ik IS - 112 LA - eng M3 - Meteorology PB - ECMWF PY - 2007 SE - Meteorology SP - 10 EP - 15 T2 - ECMWF Newsletter TI - Data assimilation in the polar regions UR - https://www.ecmwf.int/node/17531 ER -