TY - SLIDE
KW - Symposium
KW - 4D-Var
AU - J. Derber
BT - Symposium: 20 years of 4D-Var at ECMWF
C1 - Events
DA - 2018
LA - eng
PY - 2018
T2 - Symposium: 20 years of 4D-Var at ECMWF
TI - The early years of variational data assimilation: A perspective from NCEP
ER -