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The solution is to use the "-D" option of grib_dump and look for the string "can be missing".
Let's try that:
| Code Block |
|---|
% grib_dump -D GRIB2.tmpl | grep 'can be missing' ... 79-83 unsigned subdivisionsOfBasicAngle = MISSING (can be missing) 100-104 unsigned iDirectionIncrement = 2000000 (can be missing) [Di, Dx] 104-108 unsigned jDirectionIncrement = 2000000 (can be missing) [Dj, Dy] 123-125 unsigned hoursAfterDataCutoff = 0 (can be missing) [hoursAfterReferenceTimeOfDataCutoff] 125-126 unsigned minutesAfterDataCutoff = 0 (can be missing) [minutesAfterReferenceTimeOfDataCutoff] 132-133 signed scaleFactorOfFirstFixedSurface = MISSING (can be missing) 133-137 unsigned scaledValueOfFirstFixedSurface = MISSING (can be missing) 138-139 signed scaleFactorOfSecondFixedSurface = MISSING (can be missing) 139-143 unsigned scaledValueOfSecondFixedSurface = MISSING (can be missing) ... |
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