[1] R. E. Kalman: A new approach to linear filtering and prediction problems; Trans. ASME J. Basic Eng., Vol. 82, No. 1, pp. 35-45 (1960)
[2] G. Evensen: Sequential data assimilation with a nonlinear quasi-geostrophic model using Monte Carlo methods to forecast error statistics; J. Geophys. Res., Vol. 99, No. C5, pp. 10143-10162 (1994)
[3] A. Doucet, N. de Freitas and N. Gordon: Sequential Monte Carlo Methods in Practice, Springer-Verlag, pp. 1-582 (2001)
[4] 露木, 川畑(編): 気象学におけるデータ同化; 気象研究ノート, No. 217, pp. 1-277 (2008)
[5] Y. Sakawa: Observability and related problems for partial differential equations of parabolic type; SIAM J. Control, Vol. 13, No. 1, pp. 14-27 (1975)