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= the forecast value of the parameter in question;
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x_v |
= the corresponding verifying value;
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x_c |
= the climatological value of the parameter; n = the number of grid points or observations in the verification area;
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M_{f,c} |
= the mean value over the verification area of the forecast anomalies from climate;
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M_{v,c} |
= the mean value over the verification area of the analysed anomalies from climate;
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\vec{V}_f |
= the forecast wind vector;
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\vec{V}_v |
= the corresponding verifying value;
The differentiation is approximated by differences computed on the verification grid:
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