Variable: Specific humidity

Definition
Full name Specific humidity
Definition 3D field of the specific humidity in the atmosphere. The specific humidity is the ratio between the mass of water vapour and the mass of moist air.
Measuring Units g/kg Uncertainty Units %
Horizontal Res Units km Vertical Res Units km
Stability Units % (Stability /decade)

 

Comment:
Last modified:
Classification
  • Domain: Atmosphere
    • Sub-domain: Basic atmospheric
      • Variable: Specific humidity
        • Measured in Layers:
          • MUS
          • UTLS
          • FT
          • PBL
          • M
  • Cross-cutting themes:

Requirements defined for Specific humidity  (19)

This tables shows all related requirements. For more operations/filtering, please consult the full list of Requirements
Note: In reading the values, goal is marked blue, breakthrough green and threshold orange

Id Variable Layer App Area Uncertainty Stability / decade Hor Res Ver Res Obs Cyc Timeliness Coverage Conf Level Val Date Source
21 Specific humidity PBL Aeronautical Meteorology 5 %
7 %
10 %
50 km
70 km
100 km
0.15 km
0.3 km
0.6 km
60 min
90 min
3 h
60 min
90 min
2 h
Global firm 2000-06-23 ET ODRRGOS
110 Specific humidity MUS
M
Climate-AOPC (deprecated) 2 %
5 %
20 %
50 km
100 km
200 km
2 km
3 km
5 km
3 h
4 h
6 h
7 d
14 d
60 d
Global firm 2007-07-19 AOPC
111 Specific humidity FT Climate-AOPC (deprecated) 2 %
5 %
20 %
20 km
50 km
100 km
0.1 km
0.5 km
2 km
3 h
4 h
6 h
7 d
14 d
60 d
Global firm 2007-07-19 AOPC
112 Specific humidity UTLS Climate-AOPC (deprecated) 2 %
5 %
20 %
50 km
100 km
200 km
2 km
2.5 km
3 km
3 h
4 h
6 h
7 d
14 d
60 d
Global firm 2007-07-19 AOPC
113 Specific humidity PBL Climate-AOPC (deprecated) 2 %
4 %
15 %
10 km
15 km
25 km
3 h
4 h
6 h
7 d
14 d
60 d
Global firm 2007-07-19 AOPC
192 Specific humidity MUS
UTLS
FT
PBL
M
Atmospheric Chemistry (deprecated) 5 %
8 %
20 %
50 km
100 km
500 km
1 km
1.7 km
5 km
12 h
24 h
3 d
3 d
4 d
7 d
Global firm 2002-05-24 GAW Report No. 159
302 Specific humidity FT Global NWP 2 %
5 %
10 %
15 km
50 km
250 km
0.5 km
1 km
3 km
60 min
6 h
12 h
6 min
30 min
6 h
Global firm 2009-02-10 John Eyre
303 Specific humidity PBL Global NWP 2 %
5 %
10 %
15 km
50 km
250 km
0.3 km
1 km
3 km
60 min
6 h
12 h
6 min
30 min
6 h
Global firm 2009-02-10 John Eyre
378 Specific humidity FT High Res NWP 2 %
5 %
10 %
2 km
10 km
30 km
0.3 km
0.4 km
1 km
15 min
60 min
6 h
15 min
30 min
2 h
Global firm 2011-07-29 T Montmerle
379 Specific humidity PBL High Res NWP 2 %
5 %
10 %
0.5 km
5 km
20 km
0.1 km
0.2 km
1 km
15 min
60 min
6 h
15 min
30 min
2 h
Global firm 2011-07-29 T Montmerle
448 Specific humidity FT Nowcasting / VSRF 5 %
8 %
20 %
5 km
15 km
50 km
0.1 km
0.5 km
2 km
15 min
30 min
60 min
10 min
20 min
60 min
Global firm 2013-04-03 P. Ambrosetti
234 Specific humidity MUS
M
Climate Modelling Research (deprecated) 5 %
10 %
20 %
50 km
100 km
250 km
3 h
6 h
12 h
30 d
45 d
60 d
Global reasonable 1998-10-29 WCRP
235 Specific humidity FT Climate Modelling Research (deprecated) 5 %
10 %
20 %
25 km
37 km
50 km
60 min
3 h
6 h
30 d
45 d
60 d
Global reasonable 2012-12-01 WCRP (M.Rixen)
237 Specific humidity UTLS
PBL
Climate Modelling Research (deprecated) 5 %
10 %
20 %
25 km
37 km
50 km
0.5 km
1 km
2 km
3 h
6 h
12 h
30 d
45 d
60 d
Global reasonable 2012-12-01 WCRP (M.Rixen)
628 Specific humidity MUS
M
SPARC (deprecated) 2 %
3 %
5 %
50 km
100 km
500 km
0.5 km
1 km
2 km
6 h
12 h
3 d
24 h
2 d
7 d
Global reasonable 1998-10-29 WCRP
629 Specific humidity FT SPARC (deprecated) 2 %
3 %
5 %
50 km
100 km
500 km
0.5 km
1 km
2 km
6 h
12 h
3 d
24 h
2 d
7 d
Global reasonable 1998-10-29 WCRP
630 Specific humidity UTLS SPARC (deprecated) 2 %
3 %
5 %
50 km
100 km
500 km
0.5 km
1 km
2 km
6 h
12 h
3 d
24 h
2 d
7 d
Global reasonable 1998-10-29 WCRP
631 Specific humidity PBL SPARC (deprecated) 2 %
3 %
5 %
50 km
100 km
500 km
0.5 km
1 km
2 km
6 h
12 h
3 d
24 h
2 d
7 d
Global reasonable 1998-10-29 WCRP
704 Specific humidity PBL Nowcasting / VSRF 2 %
5 %
10 %
5 km
10 km
50 km
0.1 km
0.3 km
1 km
5 min
10 min
60 min
5 min
10 min
60 min
Global reasonable 2013-04-25 P. Ambrosetti