| Bit No. |
Flag Value |
Description |
Unit |
Status |
| 0 |
|
Cloud ice |
kg m-2 |
Operational |
| 1 |
|
Total cloud cover |
% |
Operational |
| 2 |
|
Convective cloud cover |
% |
Operational |
| 3 |
|
Low cloud cover |
% |
Operational |
| 4 |
|
Medium cloud cover |
% |
Operational |
| 5 |
|
High cloud cover |
% |
Operational |
| 6 |
|
Cloud water |
kg m-2 |
Operational |
| 7 |
|
Cloud amount |
% |
Operational |
| 8 |
|
Cloud type |
Code/Flag Table 4.203 |
Operational |
| 9 |
|
Thunderstorm maximum tops |
m |
Operational |
| 10 |
|
Thunderstorm coverage |
Code/Flag Table 4.204 |
Operational |
| 11 |
|
Cloud base |
m |
Operational |
| 12 |
|
Cloud top |
m |
Operational |
| 13 |
|
Ceiling |
m |
Operational |
| 14 |
|
Non-convective cloud cover |
% |
Operational |
| 15 |
|
Cloud work function |
J/kg |
Operational |
| 16 |
|
Convective cloud efficiency |
Proportion |
Operational |
| 17 |
|
Total condensate |
kg/kg |
Deprecated |
| 18 |
|
Total column-integrated cloud water |
kg m-2 |
Deprecated |
| 19 |
|
Total column-integrated cloud ice |
kg m-2 |
Deprecated |
| 20 |
|
Total column-integrated condensate |
kg m-2 |
Deprecated |
| 21 |
|
Ice fraction of total condensate |
Proportion |
Operational |
| 22 |
|
Cloud cover |
% |
Operational |
| 23 |
|
Cloud ice mixing ratio |
kg/kg |
Deprecated |
| 24 |
|
Sunshine |
Numeric |
Operational |
| 25 |
|
Horizontal extent of cumulonimbus (CB) |
% |
Operational |
| 26 |
|
Height of convective cloud base |
m |
Operational |
| 27 |
|
Height of convective cloud top |
m |
Operational |
| 28 |
|
Number of cloud droplets per unit mass of air |
/kg |
Operational |
| 29 |
|
Number of cloud ice particles per unit mass of air |
/kg |
Operational |
| 30 |
|
Number density of cloud droplets |
m-3 |
Operational |
| 31 |
|
Number density of cloud ice particles |
m-3 |
Operational |
| 32 |
|
Fraction of cloud cover |
Numeric |
Operational |
| 33 |
|
Sunshine duration |
s |
Operational |
| 34 |
|
Surface long-wave effective total cloudiness |
Numeric |
Operational |
| 35 |
|
Surface short-wave effective total cloudiness |
Numeric |
Operational |
| 36 |
|
Fraction of stratiform precipitation cover |
Proportion |
Operational |
| 37 |
|
Fraction of convective precipitation cover |
Proportion |
Operational |
| 38 |
|
Mass density of cloud droplets |
kg m-3 |
Operational |
| 39 |
|
Mass density of cloud ice |
kg m-3 |
Operational |
| 40 |
|
Mass density of convective cloud water droplets |
kg m-3 |
Operational |
| 41-46 |
|
Reserved |
|
Operational |
| 47 |
|
Volume fraction of cloud water droplets |
Numeric |
Operational |
| 48 |
|
Volume fraction of cloud ice particles |
Numeric |
Operational |
| 49 |
|
Volume fraction of cloud (ice and/or water) |
Numeric |
Operational |
| 50 |
|
Fog |
% |
Operational |
| 51 |
|
Sunshine duration fraction |
Proportion |
Operational |
| 52-191 |
|
Reserved |
|
Operational |
| 192-254 |
|
Reserved for local use |
|
Operational |
| 255 |
|
Missing |
|
Operational |