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Comment: earth radius incorrectly given as 6371.2229 - now corrected to 6371.229

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For data in GRIB2 format the earth model is a sphere with radius = 6371.2229 29 km (note, this is consistent with what is actually used in the IFS), as defined in the WMO GRIB2 specifications, section 2.2.1, Code Table 3.2, Code figure 6.

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