Correcting for forecast bias in soil moisture assimilation with the ensemble Kalman filter
De Lannoy, G. J. M., R. H. Reichle, P. R. Houser, V. R. N. Pauwels, and N. E. C. Verhoest , 2007: Correcting for forecast bias in soil moisture assimilation with the ensemble Kalman filter, Water Resour. Res., 43, W09410, doi:10.1029/2006WR005449. [pdf]