1 p P Pressure Pa
2 msl MSL Mean sea level pressure Pa
3 3 None Pressure tendency Pa s**-1
4 pv PV Potential vorticity K m**2 kg**-1 s**-1
5 5 None ICAO Standard Atmosphere reference height m
6 z Z Geopotential m**2 s**-2
7 gh GH Geopotential height gpm
8 h H Geometrical height m
9 9 None Standard deviation of height m
10 tco3 TCO3 Total (column) ozone Dobson (kg m**-2)
11 t T Temperature K
12 12 None Virtual temperature K
13 13 None Potential temperature K
14 14 None Pseudo-adiabatic potential temperature K
15 15 None Maximum temperature K
16 16 None Minimum temperature K
17 17 None Dew-point temperature K
18 18 None Dew-point depression (or deficit) K
19 19 None Lapse rate K s**-1
20 20 None Visibility m
21 21 None Radar spectra (1) -
22 22 None Radar spectra (2) -
23 23 None Radar spectra (3) -
24 24 None Parcel lifted index (to 500 hPa) K
25 25 None Temperature anomaly K
26 26 None Pressure anomaly Pa
27 27 None Geopotential height anomaly gpm
28 28 None Wave spectra (1) -
29 29 None Wave spectra (2) -
30 30 None Wave spectra (3) -
31 31 None Wind direction Degree true
32 32 None Wind speed m s**-1
33 u U U-component of wind m s**-1
34 v V V-component of wind m s**-1
35 35 None Stream Function m**2 s**-1
36 36 None Velocity Potential m**2 s**-1
37 37 None Montgomery stream Function m**2 s**-1
38 38 None Sigma coordinate vertical velocity s**-1
39 w W Vertical velocity Pa s**-1
40 40 None Vertical velocity m s**-1
41 41 None Absolute vorticity s**-1
42 42 None Absolute divergence s**-1
43 vo VO Relative vorticity s**-1
44 d D Relative divergence s**-1
45 45 None Vertical u-component shear s**-1
46 46 None Vertical v-component shear s**-1
47 47 None Direction of current Degree true
48 48 None Speed of current m s**-1
49 49 None U-component of current m s**-1
50 50 None V-component of current m s**-1
51 q Q Specific humidity kg kg**-1
52 r R Relative humidity %
53 53 None Humidity mixing ratio kg m**-2
54 54 None Precipitable water kg m**-2
55 55 None Vapour pressure Pa
56 56 None Saturation deficit Pa
57 e E Evaporation kg m**-2
58 ciwc CIWC Cloud ice kg m**-2
59 59 None Precipitation rate kg m**-2 s**-1
60 60 None Thunderstorm probability %
61 tp TP Total precipitation kg m**-2
62 62 LSP Large scale precipitation kg m**-2
63 63 None Convective precipitation (water) kg m**-2
64 64 None Snow fall rate water equivalent kg m**-2 s**-1
65 sf SF Water equivalentof accumulated snow depth kg m**-2
66 sd SD Snow depth m (of water equivalent)
67 67 None Mixed layer depth m
68 68 None Transient thermocline depth m
69 69 None Main thermocline depth m
70 70 None Main thermocline anomaly m
71 tcc TCC Total cloud cover %
72 ccc CCC Convective cloud cover %
73 lcc LCC Low cloud cover %
74 mcc MCC Medium cloud cover %
75 hcc HCC High cloud cover %
76 clwc CLWC Cloud liquid water content kg kg**-1
77 77 None Best lifted index (to 500 hPa) K
78 csf CSF Convective snow-fall kg m**-2
79 lsf LSF Large scale snow-fall kg m**-2
80 80 None Water temperature K
81 lsm LSM Land cover (1=land, 0=sea) (0 - 1)
82 82 None Deviation of sea-level from mean m
83 sr SR Surface roughness m
84 al AL Albedo -
85 st ST Surface temperature of soil K
86 ssw SSW Soil moisture content kg m**-2
87 veg VEG Percentage of vegetation %
88 88 None Salinity kg kg**-1
89 89 None Density kg m**-3
90 ro RO Water run-off kg m**-2
91 91 None Ice cover (1=land, 0=sea) (0 - 1)
92 92 None Ice thickness m
93 93 None Direction of ice drift Degree true
94 94 None Speed of ice drift m s*-1
95 95 None U-component of ice drift m s**-1
96 96 None V-component of ice drift m s**-1
97 97 None Ice growth rate m s**-1
98 98 None Ice divergence s**-1
99 99 None Snow melt kg m**-2
100 swh SWH Signific.height,combined wind waves+swell m
101 mdww MDWW Mean direction of wind waves Degree true
102 shww SHWW Significant height of wind waves m
103 mpww MPWW Mean period of wind waves s
104 104 None Direction of swell waves Degree true
105 105 None Significant height of swell waves m
106 106 None Mean period of swell waves s
107 mdps MDPS Mean direction of primary swell Degree true
108 mpps MPPS Mean period of primary swell s
109 109 None Secondary wave direction Degree true
110 110 None Secondary wave period s
111 111 None Net short-wave radiation flux (surface) W m**-2
112 112 None Net long-wave radiation flux (surface) W m**-2
113 113 None Net short-wave radiation flux(atmosph.top) W m**-2
114 114 None Net long-wave radiation flux(atmosph.top) W m**-2
115 115 None Long-wave radiation flux W m**-2
116 116 None Short-wave radiation flux W m**-2
117 117 None Global radiation flux W m**-2
118 118 None Brightness temperature K
119 119 None Radiance (with respect to wave number) W m**-1 sr**-1
120 120 None Radiance (with respect to wave length) W m**-1 sr**-1
121 slhf SLHF (surface) Latent heat flux W m**-2
122 sshf SSHF (surface) Sensible heat flux W m**-2
123 bld BLD Boundary layer dissipation W m**-2
124 124 None Momentum flux, u-component N m**-2
125 125 None Momentum flux, v-component N m**-2
126 126 None Wind mixing energy J
127 127 None Image data -
160 160 Unknown
255 - - Indicates a missing value -