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NLDAS Parameters

NLDAS-1 Forcing Product

NLDAS-2 Primary Forcing Product

NLDAS-2 Secondary Forcing Product

NLDAS-2 Mosaic Model  Product

NLDAS-2 Noah Model Product
 

NLDAS Phase 1 (NLDAS-1)

PDS_ID
 Parameter Name
Unit
1  Surface pressure  Pa
11  2-m above ground Temperature  K
33  10-m above ground Zonal wind speed  m/s
34  10-m above ground Meridional wind speed  m/s
51  2-m above ground Specific humidity  kg/kg
61  Precipitation hourly total  kg/m^2
63  Convective precipitation hourly total  kg/m^2
101  PAR Photosynthetically Active Radiation from GOES-UMD Pinker  W/m^2
118  Surface brightness temperature from GOES-UMD Pinker  K
157  Convective Available Potential Energy  J/kg
201  Precipitation hourly total from EDAS  kg/m^2
202  Precipitation hourly total from StageII  kg/m^2
204  SW radiation flux downwards (surface)  W/m^2
205  LW radiation flux downwards (surface)  W/m^2
206  SW radiation flux downwards (surface) from GOES-UMD Pinker  W/m^2

 

NLDAS Phase 2 (NLDAS-2)

PDS_ID
Parameter Name
Unit 
1  Surface pressure  Pa
11  2-m above ground Temperature  K
33  10-m above ground Zonal wind speed  m/s
34  10-m above ground Meridional wind speed  m/s
51  2-m above ground Specific humidity  kg/kg
61  Precipitation hourly total  kg/m^2
153  Fraction of total precipitation that is convective  unitless
157  180-0 mb above ground Convective Available Potential Energy  J/kg
204  SW radiation flux downwards (surface)  W/m^2
205  LW radiation flux downwards (surface)  W/m^2
228  Potential evaporation  kg/m^2

 

PDS_ID
Parameter Name
Unit
1  NARR hybrid level Pressure  Pa
7  NARR hybrid level Geopotential height  gpm
11  NARR hybrid level Temperature  K
33  NARR hybrid level Zonal wind speed  m/s
34  NARR hybrid level Meridional wind speed  m/s
51  NARR hybrid level Specific humidity  kg/kg
61  Precipitation hourly total  kg/m^2
63  Convective precipitation hourly total  kg/m^2
179  Aerodynamic conductance  m/s
204  SW radiation flux downwards (surface)  W/m^2

 

PDS_ID
 Parameter Name
Unit
57  Total evapotranspiration  kg/m^2
65  Accumulated snow water-equivalent  kg/m^2
66  Snow depth  m
84  Albedo  %
85  Deep soil temperature  K
86  Average layer soil moisture content  kg/m^2
87  Vegetation  %
99  Snowmelt  kg/m^2
111  Shortwave radiation flux net (surface)  W/m^2
112  Longwave radiation flux net (surface)  W/m^2
121  Latent heat flux  W/m^2
122  Sensible heat flux  W/m^2
148  Average surface skin temperature  K
155  Ground heat flux  W/m^2
161  Snowfall (frozen precipitation)  kg/m^2
162  Rainfall (unfrozen precipitation)  kg/m^2
179  Aerodynamic conductance  m/s
181  Canopy conductance  m/s
182  Leaf area index (0-9)  non-dim
198  Sublimation (evaporation from snow)  W/m^2
199  Direct evaporation from bare soil  W/m^2
200  Canopy water evaporation  W/m^2
204  Shortwave radiation flux downwards (surface)  W/m^2
205  Longwave radiation flux downwards (surface)  W/m^2
207  Root zone Moisture availability  %
210  Transpiration  W/m^2
223  Plant canopy surface water  kg/m^2
229  Snow phase-change heat flux  W/m^2
234  Subsurface runoff (baseflow)  kg/m^2
235  Surface runoff (non-infiltrating)  kg/m^2
238  Snow cover  %

 

PDS_ID
 Parameter Name
Unit
57  Total evapotranspiration  kg/m^2
65  Accumulated snow water-equivalent  kg/m^2
66  Snow depth  m
84  Albedo  %
85  Average layer soil temperature K
86  Average layer  soil moisture content  kg/m^2
87  Vegetation  %
99  Snowmelt  kg/m^2
111  Shortwave radiation flux net (surface)  W/m^2
112  Longwave radiation flux net (surface)  W/m^2
121  Latent heat flux  W/m^2
122  Sensible heat flux  W/m^2
145  Potential evaporation rate W/m^2
148  Average surface skin temperature  K
151  Average layer liquid soil moisture content (non-frozen) kg/m^2
155  Ground heat flux  W/m^2
161  Snowfall (frozen precipitation)  kg/m^2
162  Rainfall (unfrozen precipitation)  kg/m^2
179  Aerodynamic conductance  m/s
181  Canopy conductance  m/s
182  Leaf area index (0-9)  non-dim
198  Sublimation (evaporation from snow)  W/m^2
199  Direct evaporation from bare soil  W/m^2
200  Canopy water evaporation  W/m^2
203  Minimal stomatal resistance s/m
204  Shortwave radiation flux downwards (surface)  W/m^2
205  Longwave radiation flux downwards (surface)  W/m^2
207  Root zone Moisture availability  %
210  Transpiration  W/m^2
223  Plant canopy surface water  kg/m^2
229  Snow phase-change heat flux  W/m^2
234  Subsurface runoff (baseflow)  kg/m^2
235  Surface runoff (non-infiltrating)  kg/m^2
238  Snow cover  %
246  Solar parameter in canopy conductance fraction
247  Temperature parameter in canopy conductance fraction
248  Humidity parameter in canopy conductance fraction
249  Soil moisture parameter in canopy conductance fraction
250  Root zone soil moisture kg/m^2
255  Relative soil moisture availability control factor (0-1) unitless

 

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Last updated: Jan 14, 2013 02:33 PM ET
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