TY - SLIDE KW - workshop KW - data assimilation KW - GLASS KW - land surface modelling AU - P. Viterbo AU - I.F. Trigo AU - Emanuel Dutra AU - A. Betts AU - J Garcia-Haro AU - J.-L. Roujean C1 - Events DA - 2009 LA - eng PY - 2009 TI - Land surface observations: Requirements for operational NWP in data assimilation and verification UR - https://www.ecmwf.int/node/15300 ER -