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A method for implementing adjoint calculations in the discrete case

R. Hoffman, J-F. Louis, T. Nehrkorn
1992, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

9906-method-implementing-adjoint-calculations-discrete-case.pdf
Some aspects of forecast and model error

H. Mitchell, R. Daley, P. Bartello
1992, Workshop on Variational Assimilation, with special emphasis on Three-dimensional Aspects, 9-12 November 1992, Conference Paper, ECMWF.

11163-some-aspects-forecast-and-model-error.pdf
Annual Report 1991

ECMWF
1992, ECMWF Annual Report, Report, ECMWF.

16283-annual-report-1991.pdf
Validation and development of the high-resolution semi-Lagrangian ECMWF forecast model

Adrian Simmons
1992, Seminar on Validation of models over Europe, 7-11 September 1992, Conference Paper, ECMWF.

12229-validation-and-development-high-resolution-semi-lagrangian-ecmwf-forecast-model.pdf
Use of a digital filter as a weak constraint in variational data assimilation

N. Gustafsson
1992, Workshop on Variational Assimilation, with special emphasis on Three-dimensional Aspects, 9-12 November 1992, Conference Paper, ECMWF.

9692-use-digital-filter-weak-constraint-variational-data-assimilation.pdf

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