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Definition | Average of O-B values over a defined period |
Calculation | For each observed variable, the average of all valid data is computed for every station. |
Valid data | Data not flagged as missing value (O-B is not NULL) |
Minimum required valid data | 1 valid value. |
Math expression | where ∑ (𝑂 − 𝐵)𝑖,𝑗/Nj, where Nj is number of valid data for variable j. |
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