An Extension of the Dimension-Reduced Projection 4DVar
An Extension of the Dimension-Reduced Projection 4DVar |
| Figure 1 Variation of cost function values of 4DVar black curve, DRP-4DVar blue curve, and NC-DRP-4DVar red curve during iterations. X -coordinate represents iterations and Y -coordinate represents cost function value in a logarithmic scale. Circles along curves represent outer loop iterations of 4DVar or NC-DRP-4DVar. Triangles along curves represent inner loop iterations of 4DVar. |
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