| Number (In Section 4, octet 11) |
Parameter | Units |
Abbrev |
|---|---|---|---|
| 0 |
Pressure |
Pa |
PRES |
| 1 |
Pressure Reduced to MSL |
Pa |
PRMSL |
| 2 |
Pressure Tendency |
Pa s-1 |
PTEND |
| 3 |
ICAO Standard Atmosphere Reference Height |
m |
ICAHT |
| 4 |
Geopotential |
m2 s-2 |
GP |
| 5 |
Geopotential Height |
gpm |
HGT |
| 6 |
Geometric Height (see Note 1) |
m |
DIST |
| 7 |
Standard Deviation of Height |
m |
HSTDV |
| 8 |
Pressure Anomaly |
Pa |
PRESA |
| 9 |
Geopotential Height Anomaly |
gpm |
GPA |
| 10 |
Density |
kg m-3 |
DEN |
| 11 |
Altimeter Setting |
Pa |
ALTS |
| 12 |
Thickness |
m |
THICK |
| 13 |
Pressure Altitude |
m |
PRESALT |
| 14 |
Density Altitude |
m |
DENALT |
| 15 |
5-Wave Geopotential Height | gpm |
5WAVH |
| 16 |
Zonal Flux of Gravity Wave Stress | N m-2 | U-GWD |
| 17 |
Meridional Flux of Gravity Wave Stress | N m-2 | V-GWD |
| 18 |
Planetary Boundary Layer Height | m |
HPBL |
| 19 |
5-Wave Geopotential Height Anomaly | gpm |
5WAVA |
| 20 |
Standard Deviation of Subgrid Scale Orography | m |
SDSGSO |
| 21 |
Angle of Subgrid Scale Orography | rad |
AOSGSO |
| 22 |
Slope of Subgrid Scale Orography | Numeric |
SSGSO |
| 23 |
Gravity Wave Dissipation | W m-2 | GWD |
| 24 |
Anisotropy of Subgrid Scale Orography | Numeric |
ASGSO |
| 25 |
Natural Logarithm of Pressure in Pa | Numeric |
NLPRES |
| 26 | Exner Pressure | Numeric |
EXPRES |
| 27 | Updraught Mass Flux | kg m-2 s-1 | UMFLX |
| 28 | Downdraught Mass Flux | kg m-2 s-1 | DMFLX |
| 29 | Updraught Detrainment Rate | kg m-3 s-1 | UDRATE |
| 30 | Downdraught Detrainment Rate | kg m-3 s-1 | DDRATE |
| 31 | Unbalanced Component of Logarithm of Surface Pressure | - | UCLSPRS |
| 32 | Saturation water vapour pressure | Pa | SWATERVP |
| 33 | Geometric altitude above mean sea level | m | GAMSL |
| 34 | Geometric height above ground level | m | GHAGRD |
| 35 | Column integrated divergence of total mass flux | kg m-2 s-1 | CDTMF |
| 36 | Column integrated eastward total mass flux | kg m-2 s-1 | CETMF |
| 37 | Column integrated northward total mass flux | kg m-2 s-1 | CNTMF |
| 38 | Standard deviation of filtered subgrid orography | m | SDFSO |
| 39 | Column integrated mass of atmosphere | kg m-2 s-1 | CMATMOS |
| 40 | Column integrated eastward geopotential flux | W m-1 | CEGFLUX |
| 41 | Column integrated northward geopotential flux | W m-1 | CNGFLUX |
| 42 | Column integrated divergence of water geopotential flux | W m-2 | CDWGFLUX |
| 43 | Column integrated divergence of geopotential flux | W m-2 | CDGFLUX |
| 44 | Height of zero-degree wet-bulb temperature | m | HWBT |
| 45 | Height of one-degree wet-bulb temperature | m | WOBT |
| 46 | Pressure departure from hydrostatic state | Pa | PRESDHS |
| 47-191 |
Reserved | ||
| 192-254 |
Reserved for Local Use |
||
| 192 |
MSLP (Eta model reduction) | Pa |
MSLET |
| 193 |
5-Wave Geopotential Height | gpm |
5WAVH |
| 194 |
Zonal Flux of Gravity Wave Stress | N m-2 | U-GWD |
| 195 |
Meridional Flux of Gravity Wave Stress | N m-2 | V-GWD |
| 196 |
Planetary Boundary Layer Height | m |
HPBL |
| 197 |
5-Wave Geopotential Height Anomaly | gpm |
5WAVA |
| 198 |
MSLP (MAPS System Reduction) | Pa |
MSLMA |
| 199 |
3-hr pressure tendency (Std. Atmos. Reduction) | Pa s-1 |
TSLSA |
| 200 |
Pressure of level from which parcel was lifted | Pa |
PLPL |
| 201 |
X-Gradient of Log Pressure | m-1 |
LPSX |
| 202 |
Y-Gradient of Log Pressure | m-1 |
LPSY |
| 203 |
X-Gradient of Height | m-1 |
HGTX |
| 204 |
Y-Gradient of Height | m-1 |
HGTY |
| 205 |
Layer Thickness | m |
LAYTH |
| 206 |
Natural Log of Surface Pressure | ln (kPa) |
NLGSP |
| 207 |
Convective updraft mass flux |
kg m-2 s-1 |
CNVUMF |
| 208 |
Convective downdraft mass flux |
kg m-2 s-1 |
CNVDMF |
| 209 |
Convective detrainment mass flux | kg m-2 s-1 |
CNVDEMF |
| 210 |
Mass Point Model Surface | LMH | |
| 211 |
Geopotential Height (nearest grid point) | gpm | HGTN |
| 212 |
Pressure (nearest grid point) | Pa | PRESN |
| 213 | Orographic Convexity | ORCONV | |
| 214 | Orographic Asymmetry, W Component | ORASW | |
| 215 | Orographic Asymmetry, S Component | ORASS | |
| 216 | Orographic Asymmetry, SW Component | ORASSW | |
| 217 | Orographic Asymmetry, NW Component | ORASNW | |
| 218 | Orographic Length Scale, W Component | ORLSW | |
| 219 | Orographic Length Scale, S Component | ORLSS | |
| 220 | Orographic Length Scale, SW Component | ORLSSW | |
| 221 | Orographic Length Scale, NW Component | ORLSNW | |
| 222 | Effective Surface Height | m | EFSH |
| 255 |
Missing |
| Notes: (1) Number 33 (Geometric altitude above sea level) or number 34 (Geometric height above ground level) should be used instead of number 6 (Geometric height), because it does not indicate whether this is referring to height above mean sea level or height above ground. |