Table 2. Plausibility limits used in basic validity checks.
Item Valid Range
Year 1938 to present
Month 1 - 12
Day 1 - last day in month
Observation Hour 0 - 23
Launch Time Hour 0 - 23
Launch Time Minutes 0 - 59
Pressure 1100 - 0.1 hPa
Geopotential Height -1000 to 70,000 m
Temperature -120 to 270 °C
Dewpoint Depression 0 to 70 °C
Wind Speed 0 - 150 m/s
Wind Direction 0 - 360°