11 p P Pressure Pa 22 msl MSL Mean sea level pressure Pa 33 3 None Pressure tendency Pa s**-1 44 pv PV Potential vorticity K m**2 kg**-1 s**-1 55 5 None ICAO Standard Atmosphere reference height m 66 z Z Geopotential m**2 s**-2 77 gh GH Geopotential height gpm 88 h H Geometrical height m 99 9 None Standard deviation of height m 1010 tco3 TCO3 Total (column) ozone Dobson (kg m**-2) 1111 t T Temperature K 1212 12 None Virtual temperature K 1313 13 None Potential temperature K 1414 14 None Pseudo-adiabatic potential temperature K 1515 15 None Maximum temperature K 1616 16 None Minimum temperature K 1717 17 None Dew-point temperature K 1818 18 None Dew-point depression (or deficit) K 1919 19 None Lapse rate K s**-1 2020 20 None Visibility m 2121 21 None Radar spectra (1) - 2222 22 None Radar spectra (2) - 2323 23 None Radar spectra (3) - 2424 24 None Parcel lifted index (to 500 hPa) K 2525 25 None Temperature anomaly K 2626 26 None Pressure anomaly Pa 2727 27 None Geopotential height anomaly gpm 2828 28 None Wave spectra (1) - 2929 29 None Wave spectra (2) - 3030 30 None Wave spectra (3) - 3131 31 None Wind direction Degree true 3232 32 None Wind speed m s**-1 3333 u U U-component of wind m s**-1 3434 v V V-component of wind m s**-1 3535 35 None Stream Function m**2 s**-1 3636 36 None Velocity Potential m**2 s**-1 3737 37 None Montgomery stream Function m**2 s**-1 3838 38 None Sigma coordinate vertical velocity s**-1 3939 w W Vertical velocity Pa s**-1 4040 40 None Vertical velocity m s**-1 4141 41 None Absolute vorticity s**-1 4242 42 None Absolute divergence s**-1 4343 vo VO Relative vorticity s**-1 4444 d D Relative divergence s**-1 4545 45 None Vertical u-component shear s**-1 4646 46 None Vertical v-component shear s**-1 4747 47 None Direction of current Degree true 4848 48 None Speed of current m s**-1 4949 49 None U-component of current m s**-1 5050 50 None V-component of current m s**-1 5151 q Q Specific humidity kg kg**-1 5252 r R Relative humidity % 5353 53 None Humidity mixing ratio kg m**-2 5454 54 None Precipitable water kg m**-2 5555 55 None Vapour pressure Pa 5656 56 None Saturation deficit Pa 5757 e E Evaporation kg m**-2 5858 ciwc CIWC Cloud ice kg m**-2 5959 59 None Precipitation rate kg m**-2 s**-1 6060 60 None Thunderstorm probability % 6161 tp TP Total precipitation kg m**-2 6262 62 LSP Large scale precipitation kg m**-2 6363 63 None Convective precipitation (water) kg m**-2 6464 64 None Snow fall rate water equivalent kg m**-2 s**-1 6565 sf SF Water equivalentof accumulated snow depth kg m**-2 6666 sd SD Snow depth m (of water equivalent) 6767 67 None Mixed layer depth m 6868 68 None Transient thermocline depth m 6969 69 None Main thermocline depth m 7070 70 None Main thermocline anomaly m 7171 tcc TCC Total cloud cover % 7272 ccc CCC Convective cloud cover % 7373 lcc LCC Low cloud cover % 7474 mcc MCC Medium cloud cover % 7575 hcc HCC High cloud cover % 7676 clwc CLWC Cloud liquid water content kg kg**-1 7777 77 None Best lifted index (to 500 hPa) K 7878 csf CSF Convective snow-fall kg m**-2 7979 lsf LSF Large scale snow-fall kg m**-2 8080 80 None Water temperature K 8181 lsm LSM Land cover (1=land, 0=sea) (0 - 1) 8282 82 None Deviation of sea-level from mean m 8383 sr SR Surface roughness m 8484 al AL Albedo - 8585 st ST Surface temperature of soil K 8686 ssw SSW Soil moisture content kg m**-2 8787 veg VEG Percentage of vegetation % 8888 88 None Salinity kg kg**-1 8989 89 None Density kg m**-3 9090 ro RO Water run-off kg m**-2 9191 91 None Ice cover (1=land, 0=sea) (0 - 1) 9292 92 None Ice thickness m 9393 93 None Direction of ice drift Degree true 9494 94 None Speed of ice drift m s*-1 9595 95 None U-component of ice drift m s**-1 9696 96 None V-component of ice drift m s**-1 9797 97 None Ice growth rate m s**-1 9898 98 None Ice divergence s**-1 9999 99 None Snow melt kg m**-2 100100 swh SWH Signific.height,combined wind waves+swell m 101101 mdww MDWW Mean direction of wind waves Degree true 102102 shww SHWW Significant height of wind waves m 103103 mpww MPWW Mean period of wind waves s 104104 104 None Direction of swell waves Degree true 105105 105 None Significant height of swell waves m 106106 106 None Mean period of swell waves s 107107 mdps MDPS Mean direction of primary swell Degree true 108108 mpps MPPS Mean period of primary swell s 109109 109 None Secondary wave direction Degree true 110110 110 None Secondary wave period s 111111 111 None Net short-wave radiation flux (surface) W m**-2 112112 112 None Net long-wave radiation flux (surface) W m**-2 113113 113 None Net short-wave radiation flux(atmosph.top) W m**-2 114114 114 None Net long-wave radiation flux(atmosph.top) W m**-2 115115 115 None Long-wave radiation flux W m**-2 116116 116 None Short-wave radiation flux W m**-2 117117 117 None Global radiation flux W m**-2 118118 118 None Brightness temperature K 119119 119 None Radiance (with respect to wave number) W m**-1 sr**-1 120120 120 None Radiance (with respect to wave length) W m**-1 sr**-1 121121 slhf SLHF (surface) Latent heat flux W m**-2 122122 sshf SSHF (surface) Sensible heat flux W m**-2 123123 bld BLD Boundary layer dissipation W m**-2 124124 124 None Momentum flux, u-component N m**-2 125125 125 None Momentum flux, v-component N m**-2 126126 126 None Wind mixing energy J 127127 127 None Image data - 128160 160 Unknown 129255 - - Indicates a missing value - 130