A note on the analysis error associated with 3D-FGAT
Lawless, A. S. (2010) A note on the analysis error associated with 3D-FGAT. Quarterly Journal of the Royal Meteorological Society, 136 (649). pp. 1094-1098. ISSN 1477-870X
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To link to this article DOI: 10.1002/qj.619
The analysis-error variance of a 3D-FGAT assimilation is examined analytically using a simple scalar equation. It is shown that the analysis-error variance may be greater than the error variances of the inputs. The results are illustrated numerically with a scalar example and a shallow-water model.
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