1. Bannister RN 2004 On control variable transforms in the Met Office 3d and 4d Var, and a description of the proposed waveband summation transformation 5 http://darc.nerc.ac.uk/v2/internalreports.html
2. Bannister RN 2006 Collection of results on background error covariance models 7 http://darc.nerc.ac.uk/v2/internalreports.html
3. Can wavelets improve the representation of forecast error covariances in variational data assimilation?;Bannister;Mon. Weather Rev.,2007
4. A review of forecast error covariance statistics in atmospheric variational data assimilation. I: Characteristics and measurements of forecast error covariances;Bannister;Q. J. R. Meteorol. Soc.,2008
5. Bannister RN Cullen MJP 2006 The implementation of a PV-based leading control variable in variational data assimilation 6 http://darc.nerc.ac.uk/v2/internalreports.html