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

<div>48 h nonsystematic error of geopotential height on 500 hPa on January 15, 2010 (unit: gpm): (a) nonsystematic error and (b) nonsystematic error estimated by variational approach.</div>

Advances in Meteorology

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Figure 4

Figure 4: Numerical Studies on Forecast Error Correction of GRAPES Model with Variational Approach 