Numerical Studies on Forecast Error Correction of GRAPES Model with Variational Approach

Figure 2

24 h nonsystematic error of geopotential height on 500 hPa (unit: gpm) (a) January 17, 2008; (b) July 26, 2009; (c) January 15, 2010; (d) July 24, 2010.

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(b)

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