0 
Highresolution data sample


stable

1 
Within 20 hPa of surface


stable

2 
Pressure less than 10 hPa (i.e., 9, 8, 7, etc.) when no other reason applies


stable

3 
Base pressure level for stability index


stable

4 
Begin doubtful temperature, height data


stable

5 
Begin missing data (all elements)


stable

6 
Begin missing relative humidity data


stable

7 
Begin missing temperature data


stable

8 
Highest level reached before balloon descent because of icing or turbulence


stable

9 
End doubtful temperature, height data


stable

10 
End missing data (all elements)


stable

11 
End missing relative humidity data


stable

12 
End missing temperature data


stable

13 
Zero degrees Celsius crossing(s) for RADAT


stable

14 
Standard pressure level


stable

15 
Operatoradded level


stable

16 
Operatordeleted level


stable

17 
Balloon reascended beyond previous highest ascent level


stable

18 
Significant relative humidity level


stable

19 
Relative humidity level selection terminated


stable

20 
Surface level


stable

21 
Significant temperature level


stable

22 
Mandatory temperature level


stable

23 
Flight termination level


stable

24 
Tropopause(s)


stable

25 
Aircraft report


stable

26 
Interpolated (generated) level


stable

27 
Mandatory wind level


stable

28 
Significant wind level


stable

29 
Maximum wind level


stable

30 
Incremental wind level (fixed regional)


stable

31 
Incremental height level (generated)


stable

32 
Wind termination level


stable

33 
Pressure 100 to 110 hPa, when no other reason applies


stable

34 
Freezing level base


stable

35 
Freezing level top


stable

36 
Flight level base


stable

37 
Flight level top


stable

40 
Significant thermodynamic level (inversion)


stable

41 
Significant relative humidity level (according to NCDC criteria)


stable

42 
Significant temperature level (according to NCDC)


stable

43 
Begin missing wind data


stable

44 
End missing wind data


stable

60 
Level of 80knot isotach above jet


stable

61 
Level of 80knot isotach below jet


stable

62 
Other


stable

63 
Missing value


stable
