Anderson J. L., 2001, Mon. Wea. Rev, 129, 2884, 10.1175/1520-0493(2001)129<2884:AEAKFF>2.0.CO;2
Bierman, G. J. 1977. Factorization Methods for Discrete Sequential Es-timation. Academic Press, New York, 68–112.
Bishop C., 2001, Mon. Wea. Rev, 129, 420, 10.1175/1520-0493(2001)129<0420:ASWTET>2.0.CO;2
Burgers G., 1998, Mon. Wea. Rev, 126, 1719, 10.1175/1520-0493(1998)126<1719:ASITEK>2.0.CO;2
Evensen G., 2003, Ocean Dyn, 53, 343, 10.1007/s10236-003-0036-9
Evensen G., 2004, Ocean Dyn, 54, 539, 10.1007/s10236-004-0099-2
Hamill T., 2001, Mon. Wea. Rev, 129, 2776, 10.1175/1520-0493(2001)129<2776:DDFOBE>2.0.CO;2
Houtekamer P. L., 1998, Mon. Wea. Rev, 126, 796, 10.1175/1520-0493(1998)126<0796:DAUAEK>2.0.CO;2
Houtekamer P. L., 2001, Mon. Wea. Rev, 129, 123, 10.1175/1520-0493(2001)129<0123:ASEKFF>2.0.CO;2
Jelloul M. B., 2003, J. Phys. Oceanogr, 33, 2320, 10.1175/1520-0485(2003)033<2320:BIASBT>2.0.CO;2
Julier S. J., 1997, Symp. on Aerospace/Defence Sensing, Simulation and Controls, Vol, 3068, 182
Lawson W. G., 2004, Mon. Wea. Rev, 132, 1966, 10.1175/1520-0493(2004)132<1966:IOSADF>2.0.CO;2
Lorenz E. N., 1998, J. Atmos. Sci, 55, 399, 10.1175/1520-0469(1998)055<0399:OSFSWO>2.0.CO;2
Pham D. T., 1998, J. Mar SysL, 16, 323, 10.1016/S0924-7963(97)00109-7
Sakov, P. and Oke, P. R. 2008. Implications of the form of the ensemble transformation in the ensemble square root filters. Mon. Wea. Rev. in press.
Wang X., 2004, Mon. Wea. Rev, 132, 1590, 10.1175/1520-0493(2004)132<1590:WIBAEO>2.0.CO;2
Whitaker J. S., 2002, Mon. Wea. Rev, 130, 1913, 10.1175/1520-0493(2002)130<1913:EDAWPO>2.0.CO;2