ID Name Units Short.Name Collection Verification Constants 8 Surface runoff m sro surf_reducgg 9 Sub-surface runoff m ssro surf_reducgg 20 Clear sky surface photosynthetically active radiation J m-2 parcs surf_reducgg 26 Lake cover (0 - 1) cl surf_reducgg 31 Sea-ice cover (0 - 1) ci surf_reducgg 32 Snow albedo (0 - 1) asn surf_reducgg 33 Snow density kg m-3 rsn surf_reducgg 34 Sea surface temperature K sst surf_reducgg 35 Ice temperature layer 1 K istl1 surf_reducgg 36 Ice temperature layer 2 K istl2 surf_reducgg 37 Ice temperature layer 3 K istl3 surf_reducgg 38 Ice temperature layer 4 K istl4 surf_reducgg 39 Volumetric soil water layer 1 m3 m-3 swvl1 surf_reducgg 40 Volumetric soil water layer 2 m3 m-3 swvl2 surf_reducgg 41 Volumetric soil water layer 3 m3 m-3 swvl3 surf_reducgg 42 Volumetric soil water layer 4 m3 m-3 swvl4 surf_reducgg 44 Snow evaporation m of water equivalent es surf_reducgg 45 Snowmelt m of water equivalent smlt surf_reducgg 47 Direct solar radiation J m-2 dsrp surf_reducgg 49 10 metre wind gust since previous post-processing m s-1 10fg surf_reducgg 50 Large-scale precipitation fraction s lspf surf_reducgg 54 Pressure Pa pres ml_spec 57 Downward UV radiation at the surface J m-2 uvb surf_reducgg 58 Photosynthetically active radiation at the surface J m-2 par surf_reducgg 59 Convective available potential energy J kg-1 cape surf_reducgg 60 Potential vorticity K m2 kg-1 s-1 pv ml_reducgg 66 Leaf area index, low vegetation m2 m-2 lai_lv surf_reducgg 75 Specific rain water content kg kg-1 crwc ml_reducgg pl_regll 76 Specific snow water content kg kg-1 cswc ml_reducgg pl_regll 77 Eta-coordinate vertical velocity s-1 etadot ml_spec 78 Total column cloud liquid water kg m-2 tclw surf_reducgg 79 Total column cloud ice water kg m-2 tciw surf_reducgg 101 Convective rain flux ~ ~ ml_reducgg 102 Convective snow flux ~ ~ ml_reducgg 129 Geopotential m2 s-2 z surf_reducgg pl_regll sporog 130 Temperature K t ml_spec pl_regll 131 U component of wind m s-1 u pl_regll 132 V component of wind m s-1 v pl_regll 133 Specific humidity kg kg-1 q ml_reducgg pl_regll 134 Surface pressure Pa sp surf_reducgg 135 Vertical velocity Pa s-1 w ml_spec pl_regll 136 Total column water kg m-2 tcw surf_reducgg 137 Total column water vapour kg m-2 tcwv surf_reducgg 138 Vorticity (relative) s-1 vo ml_spec_vo_d pl_regll 139 Soil temperature level 1 K stl1 surf_reducgg 141 Snow depth m of water equivalent sd surf_reducgg 142 Large-scale precipitation m lsp surf_reducgg 143 Convective precipitation m cp surf_reducgg 144 Snowfall m of water equivalent sf surf_reducgg 145 Boundary layer dissipation J m-2 bld surf_reducgg 146 Surface sensible heat flux J m-2 sshf surf_reducgg 147 Surface latent heat flux J m-2 slhf surf_reducgg 148 Charnock ~ chnk surf_reducgg 151 Mean sea level pressure Pa msl surf_reducgg 152 Logarithm of surface pressure ~ lnsp lnsp_spec 155 Divergence s-1 d ml_spec_vo_d pl_regll 156 Geopotential Height gpm gh ml_spec 159 Boundary layer height m blh surf_reducgg 164 Total cloud cover (0 - 1) tcc surf_reducgg 165 10 metre U wind component m s-1 10u surf_reducgg 166 10 metre V wind component m s-1 10v surf_reducgg 167 2 metre temperature K 2t surf_reducgg 168 2 metre dewpoint temperature K 2d surf_reducgg 169 Surface solar radiation downwards J m-2 ssrd surf_reducgg 170 Soil temperature level 2 K stl2 surf_reducgg 172 Land-sea mask (0 - 1) lsm surf_reducgg lsmoro 175 Surface thermal radiation downwards J m-2 strd surf_reducgg 176 Surface net solar radiation J m-2 ssr surf_reducgg 177 Surface net thermal radiation J m-2 str surf_reducgg 178 Top net solar radiation J m-2 tsr surf_reducgg 179 Top net thermal radiation J m-2 ttr surf_reducgg 180 Eastward turbulent surface stress N m-2 s ewss surf_reducgg 181 Northward turbulent surface stress N m-2 s nsss surf_reducgg 182 Evaporation m of water equivalent e surf_reducgg 183 Soil temperature level 3 K stl3 surf_reducgg 186 Low cloud cover (0 - 1) lcc surf_reducgg 187 Medium cloud cover (0 - 1) mcc surf_reducgg 188 High cloud cover (0 - 1) hcc surf_reducgg 189 Sunshine duration s sund surf_reducgg 195 Eastward gravity wave surface stress N m-2 s lgws surf_reducgg 196 Northward gravity wave surface stress N m-2 s mgws surf_reducgg 197 Gravity wave dissipation J m-2 gwd surf_reducgg 198 Skin reservoir content m of water equivalent src surf_reducgg 201 Maximum temperature at 2 metres since previous post-processing K mx2t surf_reducgg 202 Minimum temperature at 2 metres since previous post-processing K mn2t surf_reducgg 203 Ozone mass mixing ratio kg kg-1 o3 ml_reducgg 205 Runoff m ro surf_reducgg 206 Total column ozone kg m-2 tco3 surf_reducgg 208 Top net solar radiation, clear sky J m-2 tsrc surf_reducgg 209 Top net thermal radiation, clear sky J m-2 ttrc surf_reducgg 210 Surface net solar radiation, clear sky J m-2 ssrc surf_reducgg 211 Surface net thermal radiation, clear sky J m-2 strc surf_reducgg 212 TOA incident solar radiation J m-2 tisr surf_reducgg 213 Vertically integrated moisture divergence kg m-2 vimd surf_reducgg 228 Total precipitation m tp surf_reducgg 229 Instantaneous eastward turbulent surface stress N m-2 iews surf_reducgg 230 Instantaneous northward turbulent surface stress N m-2 inss surf_reducgg 231 Instantaneous surface sensible heat flux W m-2 ishf surf_reducgg 232 Instantaneous moisture flux kg m-2 s-1 ie surf_reducgg 235 Skin temperature K skt surf_reducgg 236 Soil temperature level 4 K stl4 surf_reducgg 238 Temperature of snow layer K tsn surf_reducgg 243 Forecast albedo (0 - 1) fal surf_reducgg 244 Forecast surface roughness m fsr surf_reducgg 245 Forecast logarithm of surface roughness for heat ~ flsr surf_reducgg 246 Specific cloud liquid water content kg kg-1 clwc ml_reducgg pl_regll 247 Specific cloud ice water content kg kg-1 ciwc ml_reducgg pl_regll 248 Fraction of cloud cover (0 - 1) cc ml_reducgg pl_regll 3020 Visibility m vis surf_reducgg 228001 Convective inhibition J kg-1 cin surf_reducgg 228002 Orography m orog lsmoro 228003 Friction velocity m s-1 zust surf_reducgg 228007 Lake depth m dl surf_reducgg 228008 Lake mix-layer temperature K lmlt surf_reducgg 228009 Lake mix-layer depth m lmld surf_reducgg 228010 Lake bottom temperature K lblt surf_reducgg 228011 Lake total layer temperature K ltlt surf_reducgg 228012 Lake shape factor dimensionless lshf surf_reducgg 228013 Lake ice temperature K lict surf_reducgg 228014 Lake ice depth m licd surf_reducgg 228021 Total sky direct solar radiation at surface J m-2 fdir surf_reducgg 228022 Clear-sky direct solar radiation at surface J m-2 cdir surf_reducgg 228023 Cloud base height m cbh surf_reducgg 228024 Zero degree level m deg0l surf_reducgg 228029 Instantaneous 10 metre wind gust m s-1 i10fg surf_reducgg 228044 Convective available potential energy shear m2 s-2 capes surf_reducgg 228046 Height of convective cloud top m hcct surf_reducgg 228047 Height of zero-degree wet-bulb temperature m hwbt0 surf_reducgg 228048 Height of one-degree wet-bulb temperature m hwbt1 surf_reducgg 228088 Total column supercooled liquid water kg m-2 tcslw surf_reducgg 228089 Total column rain water kg m-2 tcrw surf_reducgg 228090 Total column snow water kg m-2 tcsw surf_reducgg 228129 Surface solar radiation downward clear-sky J m-2 ssrdc surf_reducgg 228130 Surface thermal radiation downward clear-sky J m-2 strdc surf_reducgg 228131 Neutral wind at 10 m u-component m s-1 u10n surf_reducgg 228132 Neutral wind at 10 m v-component m s-1 v10n surf_reducgg 228216 Accumulated freezing rain m fzra surf_reducgg 228217 Instantaneous large-scale surface precipitation fraction (0 - 1) ilspf surf_reducgg 228218 Convective rain rate kg m-2 s-1 crr surf_reducgg 228219 Large scale rain rate kg m-2 s-1 lsrr surf_reducgg 228220 Convective snowfall rate water equivalent kg m-2 s-1 csfr surf_reducgg 228221 Large scale snowfall rate water equivalent kg m-2 s-1 lssfr surf_reducgg 228246 100 metre U wind component m s-1 100u surf_reducgg 228247 100 metre V wind component m s-1 100v surf_reducgg 228251 Potential evaporation m pev surf_reducgg 260015 Precipitation type code table (4.201) ptype surf_reducgg 260109 Ceiling m ceil surf_reducgg 260121 K index K kx surf_reducgg 260123 Total totals index K totalx surf_reducgg