The following 103 parameters from NCEP Parameter Code Table 131 are included in this dataset:

Parameter CodeShort NameDescriptionUnits
1PRESPressurePa
2PRMSLPressure reduced to MSLPa
7HGTGeopotential heightgpm
11TMPTemperatureK
13POTPotential temp.K
17DPTDew point temp.K
20VISVisibilitym
33UGRDu windm s-1
34VGRDv windm s-1
39VVELVertical velocity (pressure)Pa s-1
51SPFHSpecific humiditykg kg-1
52RHRelative humidity%
54PWATPrecipitable waterkg m-2
57EVPEvaporationkg m-2
59PRATEPrecipitation ratekg m-2 s-1
61APCPTotal precipitationkg m-2
63ACPCPConvective precipitationkg m-2
65WEASDAccum. snowkg m-2
66SNODSnow depthm
71TCDCTotal cloud cover%
72CDCONConvective cloud cover%
73LCDCLow level cloud cover%
74MCDCMid level cloud cover%
75HCDCHigh level cloud cover%
81LANDLand-sea coverage (land=1;sea=0)
83SFCRSurface roughnessm
84ALBDOAlbedo%
85TSOILSoil temp.K
86SOILMSoil moisture contentkg m-2
87VEGVegetation%
99SNOMSnow meltkg m-2
121LHTFLLatent heat fluxW m-2
122SHTFLSensible heat fluxW m-2
124UFLXZonal momentum fluxN m-2
125VFLXMeridional momentum fluxN m-2
130MSLETMean sea level pressure (ETA model)Pa
131LFTXSurface lifted indexK
1324LFTXBest (4-layer) lifted indexK
134PRESNPressure (nearest grid point)Pa
135MCONVHorizontal moisture divergencekg kg-1 s-1
136VWSHVertical speed shear1 s-1
140CRAINCategorical rain (yes=1; no=0)
141CFRZRCategorical freezing rain (yes=1; no=0)
142CICEPCategorical ice pellets (yes=1; no=0)
143CSNOWCategorical snow (yes=1; no=0)
144SOILWVolumetric soil moisture (frozen + liquid)
153CLWMRCloud waterkg kg-1
155GFLUXGround Heat FluxW m-2
156CINConvective inhibitionJ kg-1
157CAPEConvective available potential energyJ kg-1
158TKETurbulent Kinetic EnergyJ kg-1
159MXSALBMaximum snow albedo%
160SOILLLiquid volumetric soil moisture (non-frozen)
170SNFALBSnow-free albedo%
171RLYRSNumber of soil layers in root zone
176NLATLatitude (-90 to +90)deg
177ELONEast longitude (0-360)deg
178ICMRIce mixing ratiokg kg-1
181CCONDCanopy conductancem s-1
190HLCYStorm relative helicitym2 s-2
191NLATNLatitude (nearest neigbhbor) (-90 to +90)deg
192ELONNEast longitude (nearest neigbhbor) (0-360)deg
196USTMu-component of storm motionm s-1
197VSTMv-component of storm motionm s-1
202APCPNTotal precipitation (nearest grid point)kg m-2
203RSMINMinimal stomatal resistances m-1
204DSWRFDownward shortwave radiation fluxW m-2
205DLWRFDownward longwave radiation fluxW m-2
207MSTAVMoisture availability%
208SFEXCExchange coefficient(kg m-3)(m s-1)
211USWRFUpward shortwave radiation fluxW m-2
212ULWRFUpward longwave radiation fluxW m-2
213CDLYRNon-convective cloud%
218HGTNGeopotential Height (nearest grid point)gpm
219WILTWilting point
221HPBLPlanetary boundary layer heightm
222SLTYPSurface slope type
223CNWATPlant canopy surface waterkg m-2
224SOTYPSoil type
225VGTYPVegetation type
226BMIXLBlackadar's mixing length scalem
228PEVAPPotential evaporationkg m-2
229SNOHFSnow phase-change heat fluxW m-2
230SMREFTranspiration stress-onset (soil moisture)
231SMDRYDirect evaporation cease (soil moisture)
232WVINCWater vapor added by precip assimilationkg m-2
233WCINCWater condensate added by precip assimilaitionkg m-2
234BGRUNSubsurface runoff (baseflow)kg m-2
235SSRUNSurface runoff (non-infiltrating)kg m-2
237WVCONVWater vapor flux convergence (vertical int)kg m-2
238SNOWCSnow cover%
240POROSSoil porosity
241WCCONVWater condensate flux convergence (vertical int)kg m-2
242WVUFLXWater vapor zonal flux (vertical int)kg m-1
243WVVFLXWater vapor meridional flux (vertical int)kg m-1
244WCUFLXWater condensate zonal flux (vertical int)kg m-1
245WCVFLXWater condensate meridional flux (vertical int)kg m-1
246RCSSolar parameter in canopy conductance
247RCTTemperature parameter in canopy conductance
248RCQHumidity parameter in canopy conductance
249RCSOLSoil moisture parameter in canopy conductance
252CDSurface drag coefficient
253FRICVSurface friction velocitym s-1