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Variables

LU_INDEX LAND USE CATEGORY Time, south_north, west_east Based on NLCD
Q2 QV at 2 M kg kg-1 Time, south_north, west_east
T2 TEMP at 2 M K Time, south_north, west_east
PSFC SFC PRESSURE Pa Time, south_north, west_east
U10 U at 10 M m s-1 Time, south_north, west_east
V10 V at 10 M m s-1 Time, south_north, west_east
SFROFF SURFACE RUNOFF mm Time, south_north, west_east
UDROFF UNDERGROUND RUNOFF mm Time, south_north, west_east
ACSNOM ACCUMULATED MELTED SNOW kg m-2 Time, south_north, west_east Within the LSM the amount of melted liquid water is calculated and used to update the snowpack (SNOW & SNOWH).
SNOW SNOW WATER EQUIVALENT kg m-2 Time, south_north, west_east SNOW field contains the amount of liquid equivalent snow water on the ground during the simulation.
SNOWH PHYSICAL SNOW DEPTH m Time, south_north, west_east The SNOWH field contains the physical depth of the snowpack during a simulation.
WSPD Wind Speed At Lowest Model Level (may contain vconv) m s-1 Time, south_north, west_east
BR Bulk Richardson Time, south_north, west_east
ZOL z/L Time, south_north, west_east
RAINC ACCUMULATED TOTAL CUMULUS PRECIPITATION mm Time, south_north, west_east Total accumulated precipitation = RAINC + RAINSH + RAINNC
RAINSH ACCUMULATED SHALLOW CUMULUS PRECIPITATION mm Time, south_north, west_east Total accumulated precipitation = RAINC + RAINSH + RAINNC
RAINNC ACCUMULATED TOTAL GRID SCALE PRECIPITATION mm Time, south_north, west_east Total accumulated precipitation = RAINC + RAINSH + RAINNC
SNOWNC ACCUMULATED TOTAL GRID SCALE SNOW AND ICE mm Time, south_north, west_east This field should not be confused with ACSNOW. It also should not be used as a surrogate for liquid equivalent snowfall since it does not include the accumulated graupel.
GRAUPELNC ACCUMULATED TOTAL GRID SCALE GRAUPEL mm Time, south_north, west_east Remember that all the NC fields, including GRAUPELNC, contain the information from the microphysics scheme only.
HAILNC ACCUMULATED TOTAL GRID SCALE HAIL mm Time, south_north, west_east
SWDOWN DOWNWARD SHORT WAVE FLUX AT GROUND SURFACE W m-2 Time, south_north, west_east
GLW DOWNWARD LONG WAVE FLUX AT GROUND SURFACE W m-2 Time, south_north, west_east
UST U* IN SIMILARITY THEORY m s-1 Time, south_north, west_east
SNOWC FLAG INDICATING SNOW COVERAGE (1 FOR SNOW COVER) Time, south_north, west_east The SNOWC is the ratio of surface area covered by snow within a grid box. The calculation is made within the LSM scheme. For the NOAH LSM, the value is dependent upon the liquid snow equivalent of the snowpack (SNOW) and the vegetation type. That is all you need to know about SNOWC.
SR fraction of frozen precipitation - Time, south_north, west_east Note that SR is determined within the microphysics and does not care about what is falling out of the cumulus or shallow cumulus schemes. This nugget of information may be important because SR values are used to compute ACSNOW
LU_INDEX LAND USE CATEGORY Time, south_north, west_east
LU_MASK 0 land 1 water Time, south_north, west_east
ZNU eta values on half (mass) levels Time, bottom_top
ZNW eta values on full (w) levels Time, bottom_top_stag
ZS DEPTHS OF CENTERS OF SOIL LAYERS m Time, soil_layers_stag
DZS THICKNESSES OF SOIL LAYERS m Time, soil_layers_stag
VAR_SSO variance of subgrid-scale orography m2 Time, south_north, west_east
U x-wind component m s-1 Time, bottom_top, south_north, west_east_stag
V y-wind component m s-1 Time, bottom_top, south_north_stag, west_east
W z-wind component m s-1 Time, bottom_top_stag, south_north, west_east
PH perturbation geopotential m2 s-2 Time, bottom_top_stag, south_north, west_east
PHB base-state geopotential m2 s-2 Time, bottom_top_stag, south_north, west_east
T perturbation potential temperature theta-t0 K Time, bottom_top, south_north, west_east
THM either 1) pert moist pot temp=(1+Rv/Rd Qv)*(theta)-T0, or 2) pert dry pot temp=t K Time, bottom_top, south_north, west_east
HFX_FORCE SCM ideal surface sensible heat flux W m-2 Time
LH_FORCE SCM ideal surface latent heat flux W m-2 Time
TSK_FORCE SCM ideal surface skin temperature W m-2 Time
HFX_FORCE_TEND SCM ideal surface sensible heat flux tendency W m-2 s-1 Time
LH_FORCE_TEND SCM ideal surface latent heat flux tendency W m-2 s-1 Time
TSK_FORCE_TEND SCM ideal surface skin temperature tendency W m-2 s-1 Time
MU perturbation dry air mass in column Pa Time, south_north, west_east
MUB base state dry air mass in column Pa Time, south_north, west_east
NEST_POS - - Time, south_north, west_east
P perturbation pressure Pa Time, bottom_top, south_north, west_east
PB BASE STATE PRESSURE Pa Time, bottom_top, south_north, west_east
FNM upper weight for vertical stretching Time, bottom_top
FNP lower weight for vertical stretching Time, bottom_top
RDNW inverse d(eta) values between full (w) levels Time, bottom_top
RDN inverse d(eta) values between half (mass) levels Time, bottom_top
DNW d(eta) values between full (w) levels Time, bottom_top
DN d(eta) values between half (mass) levels Time, bottom_top
CFN extrapolation constant Time
CFN1 extrapolation constant Time
THIS_IS_AN_IDEAL_RUN T/F flag: this is an ARW ideal simulation - Time
P_HYD hydrostatic pressure Pa Time, bottom_top, south_north, west_east
Q2 QV at 2 M kg kg-1 Time, south_north, west_east
T2 TEMP at 2 M K Time, south_north, west_east
TH2 POT TEMP at 2 M K Time, south_north, west_east
PSFC SFC PRESSURE Pa Time, south_north, west_east
U10 U at 10 M m s-1 Time, south_north, west_east
V10 V at 10 M m s-1 Time, south_north, west_east
RDX INVERSE X GRID LENGTH m-1 Time
RDY INVERSE Y GRID LENGTH m-1 Time
AREA2D Horizontal grid cell area, using dx, dy, and map factors m2 Time, south_north, west_east
DX2D Horizontal grid distance: sqrt(area2d) m Time, south_north, west_east
RESM TIME WEIGHT CONSTANT FOR SMALL STEPS Time
ZETATOP ZETA AT MODEL TOP Time
CF1 2nd order extrapolation constant Time
CF2 2nd order extrapolation constant Time
CF3 2nd order extrapolation constant Time
ITIMESTEP Time
QVAPOR Water vapor mixing ratio kg kg-1 Time, bottom_top, south_north, west_east
QCLOUD Cloud water mixing ratio kg kg-1 Time, bottom_top, south_north, west_east
QRAIN Rain water mixing ratio kg kg-1 Time, bottom_top, south_north, west_east
QICE Ice mixing ratio kg kg-1 Time, bottom_top, south_north, west_east
QSNOW Snow mixing ratio kg kg-1 Time, bottom_top, south_north, west_east
QGRAUP Graupel mixing ratio kg kg-1 Time, bottom_top, south_north, west_east
QNICE Ice Number concentration kg-1 Time, bottom_top, south_north, west_east
QNRAIN Rain Number concentration kg(-1) Time, bottom_top, south_north, west_east
SHDMAX ANNUAL MAX VEG FRACTION Time, south_north, west_east
SHDMIN ANNUAL MIN VEG FRACTION Time, south_north, west_east
SNOALB ANNUAL MAX SNOW ALBEDO IN FRACTION Time, south_north, west_east
TSLB SOIL TEMPERATURE K Time, soil_layers_stag, south_north, west_east
SMOIS SOIL MOISTURE m3 m-3 Time, soil_layers_stag, south_north, west_east
SH2O SOIL LIQUID WATER m3 m-3 Time, soil_layers_stag, south_north, west_east
SMCREL RELATIVE SOIL MOISTURE Time, soil_layers_stag, south_north, west_east
SEAICE SEA ICE FLAG Time, south_north, west_east
XICEM SEA ICE FLAG (PREVIOUS STEP) Time, south_north, west_east
SFROFF SURFACE RUNOFF mm Time, south_north, west_east
UDROFF UNDERGROUND RUNOFF mm Time, south_north, west_east
IVGTYP DOMINANT VEGETATION CATEGORY Time, south_north, west_east
ISLTYP DOMINANT SOIL CATEGORY Time, south_north, west_east
VEGFRA VEGETATION FRACTION Time, south_north, west_east
GRDFLX GROUND HEAT FLUX W m-2 Time, south_north, west_east
ACGRDFLX ACCUMULATED GROUND HEAT FLUX J m-2 Time, south_north, west_east
ACSNOM ACCUMULATED MELTED SNOW kg m-2 Time, south_north, west_east
SNOW SNOW WATER EQUIVALENT kg m-2 Time, south_north, west_east
SNOWH PHYSICAL SNOW DEPTH m Time, south_north, west_east
CANWAT CANOPY WATER kg m-2 Time, south_north, west_east
SSTSK SKIN SEA SURFACE TEMPERATURE K Time, south_north, west_east
FRC_URB2D URBAN FRACTION dimensionless Time, south_north, west_east
UTYPE_URB URBAN TYPE dimensionless Time, south_north, west_east
COSZEN COS of SOLAR ZENITH ANGLE dimensionless Time, south_north, west_east
LAI LEAF AREA INDEX m-2/m-2 Time, south_north, west_east
Z0 Background ROUGHNESS LENGTH m Time, south_north, west_east
U10E Special U at 10 M from MYJSFC m s-1 Time, south_north, west_east
V10E Special V at 10 M from MYJSFC m s-1 Time, south_north, west_east
DUSFCG COLUMN-INTEGRATED U GWDO STRESS Pa m s-1 Time, south_north, west_east
DVSFCG COLUMN-INTEGRATED V GWDO STRESS Pa m s-1 Time, south_north, west_east
VAR OROGRAPHIC VARIANCE Time, south_north, west_east
CON OROGRAPHIC CONVEXITY Time, south_north, west_east
OA1 OROGRAPHIC DIRECTION ASYMMETRY FUNCTION Time, south_north, west_east
OA2 OROGRAPHIC DIRECTION ASYMMETRY FUNCTION Time, south_north, west_east
OA3 OROGRAPHIC DIRECTION ASYMMETRY FUNCTION Time, south_north, west_east
OA4 OROGRAPHIC DIRECTION ASYMMETRY FUNCTION Time, south_north, west_east
OL1 OROGRAPHIC DIRECTION ASYMMETRY FUNCTION Time, south_north, west_east
OL2 OROGRAPHIC DIRECTION ASYMMETRY FUNCTION Time, south_north, west_east
OL3 OROGRAPHIC DIRECTION ASYMMETRY FUNCTION Time, south_north, west_east
OL4 OROGRAPHIC DIRECTION ASYMMETRY FUNCTION Time, south_north, west_east
TKE_PBL TKE from PBL m2 s-2 Time, bottom_top_stag, south_north, west_east
EL_PBL Length scale from PBL m Time, bottom_top_stag, south_north, west_east
MAPFAC_M Map scale factor on mass grid Time, south_north, west_east
MAPFAC_U Map scale factor on u-grid Time, south_north, west_east_stag
MAPFAC_V Map scale factor on v-grid Time, south_north_stag, west_east
MAPFAC_MX Map scale factor on mass grid, x direction Time, south_north, west_east
MAPFAC_MY Map scale factor on mass grid, y direction Time, south_north, west_east
MAPFAC_UX Map scale factor on u-grid, x direction Time, south_north, west_east_stag
MAPFAC_UY Map scale factor on u-grid, y direction Time, south_north, west_east_stag
MAPFAC_VX Map scale factor on v-grid, x direction Time, south_north_stag, west_east
MF_VX_INV Inverse map scale factor on v-grid, x direction Time, south_north_stag, west_east
MAPFAC_VY Map scale factor on v-grid, y direction Time, south_north_stag, west_east
F Coriolis sine latitude term s-1 Time, south_north, west_east
E Coriolis cosine latitude term s-1 Time, south_north, west_east
SINALPHA Local sine of map rotation Time, south_north, west_east
COSALPHA Local cosine of map rotation Time, south_north, west_east
HGT Terrain Height m Time, south_north, west_east
TSK SURFACE SKIN TEMPERATURE K Time, south_north, west_east
P_TOP PRESSURE TOP OF THE MODEL Pa Time
T00 BASE STATE TEMPERATURE K Time
P00 BASE STATE PRESURE Pa Time
TLP BASE STATE LAPSE RATE Time
TISO TEMP AT WHICH THE BASE T TURNS CONST K Time
TLP_STRAT BASE STATE LAPSE RATE (DT/D(LN(P)) IN STRATOSPHERE K Time
P_STRAT BASE STATE PRESSURE AT BOTTOM OF STRATOSPHERE Pa Time
MAX_MSTFX Max map factor in domain Time
MAX_MSTFY Max map factor in domain Time
RAINC ACCUMULATED TOTAL CUMULUS PRECIPITATION mm Time, south_north, west_east
RAINSH ACCUMULATED SHALLOW CUMULUS PRECIPITATION mm Time, south_north, west_east
RAINNC ACCUMULATED TOTAL GRID SCALE PRECIPITATION mm Time, south_north, west_east
SNOWNC ACCUMULATED TOTAL GRID SCALE SNOW AND ICE mm Time, south_north, west_east
GRAUPELNC ACCUMULATED TOTAL GRID SCALE GRAUPEL mm Time, south_north, west_east
HAILNC ACCUMULATED TOTAL GRID SCALE HAIL mm Time, south_north, west_east
CLDFRA CLOUD FRACTION Time, bottom_top, south_north, west_east
SWDOWN DOWNWARD SHORT WAVE FLUX AT GROUND SURFACE W m-2 Time, south_north, west_east
GLW DOWNWARD LONG WAVE FLUX AT GROUND SURFACE W m-2 Time, south_north, west_east
SWNORM NORMAL SHORT WAVE FLUX AT GROUND SURFACE (SLOPE-DEPENDENT) W m-2 Time, south_north, west_east
ACSWUPT ACCUMULATED UPWELLING SHORTWAVE FLUX AT TOP J m-2 Time, south_north, west_east
ACSWUPTC ACCUMULATED UPWELLING CLEAR SKY SHORTWAVE FLUX AT TOP J m-2 Time, south_north, west_east
ACSWDNT ACCUMULATED DOWNWELLING SHORTWAVE FLUX AT TOP J m-2 Time, south_north, west_east
ACSWDNTC ACCUMULATED DOWNWELLING CLEAR SKY SHORTWAVE FLUX AT TOP J m-2 Time, south_north, west_east
ACSWUPB ACCUMULATED UPWELLING SHORTWAVE FLUX AT BOTTOM J m-2 Time, south_north, west_east
ACSWUPBC ACCUMULATED UPWELLING CLEAR SKY SHORTWAVE FLUX AT BOTTOM J m-2 Time, south_north, west_east
ACSWDNB ACCUMULATED DOWNWELLING SHORTWAVE FLUX AT BOTTOM J m-2 Time, south_north, west_east
ACSWDNBC ACCUMULATED DOWNWELLING CLEAR SKY SHORTWAVE FLUX AT BOTTOM J m-2 Time, south_north, west_east
ACLWUPT ACCUMULATED UPWELLING LONGWAVE FLUX AT TOP J m-2 Time, south_north, west_east
ACLWUPTC ACCUMULATED UPWELLING CLEAR SKY LONGWAVE FLUX AT TOP J m-2 Time, south_north, west_east
ACLWDNT ACCUMULATED DOWNWELLING LONGWAVE FLUX AT TOP J m-2 Time, south_north, west_east
ACLWDNTC ACCUMULATED DOWNWELLING CLEAR SKY LONGWAVE FLUX AT TOP J m-2 Time, south_north, west_east
ACLWUPB ACCUMULATED UPWELLING LONGWAVE FLUX AT BOTTOM J m-2 Time, south_north, west_east
ACLWUPBC ACCUMULATED UPWELLING CLEAR SKY LONGWAVE FLUX AT BOTTOM J m-2 Time, south_north, west_east
ACLWDNB ACCUMULATED DOWNWELLING LONGWAVE FLUX AT BOTTOM J m-2 Time, south_north, west_east
ACLWDNBC ACCUMULATED DOWNWELLING CLEAR SKY LONGWAVE FLUX AT BOTTOM J m-2 Time, south_north, west_east
SWUPT INSTANTANEOUS UPWELLING SHORTWAVE FLUX AT TOP W m-2 Time, south_north, west_east
SWUPTC INSTANTANEOUS UPWELLING CLEAR SKY SHORTWAVE FLUX AT TOP W m-2 Time, south_north, west_east
SWDNT INSTANTANEOUS DOWNWELLING SHORTWAVE FLUX AT TOP W m-2 Time, south_north, west_east
SWDNTC INSTANTANEOUS DOWNWELLING CLEAR SKY SHORTWAVE FLUX AT TOP W m-2 Time, south_north, west_east
SWUPB INSTANTANEOUS UPWELLING SHORTWAVE FLUX AT BOTTOM W m-2 Time, south_north, west_east
SWUPBC INSTANTANEOUS UPWELLING CLEAR SKY SHORTWAVE FLUX AT BOTTOM W m-2 Time, south_north, west_east
SWDNB INSTANTANEOUS DOWNWELLING SHORTWAVE FLUX AT BOTTOM W m-2 Time, south_north, west_east
SWDNBC INSTANTANEOUS DOWNWELLING CLEAR SKY SHORTWAVE FLUX AT BOTTOM W m-2 Time, south_north, west_east
LWUPT INSTANTANEOUS UPWELLING LONGWAVE FLUX AT TOP W m-2 Time, south_north, west_east
LWUPTC INSTANTANEOUS UPWELLING CLEAR SKY LONGWAVE FLUX AT TOP W m-2 Time, south_north, west_east
LWDNT INSTANTANEOUS DOWNWELLING LONGWAVE FLUX AT TOP W m-2 Time, south_north, west_east
LWDNTC INSTANTANEOUS DOWNWELLING CLEAR SKY LONGWAVE FLUX AT TOP W m-2 Time, south_north, west_east
LWUPB INSTANTANEOUS UPWELLING LONGWAVE FLUX AT BOTTOM W m-2 Time, south_north, west_east
LWUPBC INSTANTANEOUS UPWELLING CLEAR SKY LONGWAVE FLUX AT BOTTOM W m-2 Time, south_north, west_east
LWDNB INSTANTANEOUS DOWNWELLING LONGWAVE FLUX AT BOTTOM W m-2 Time, south_north, west_east
LWDNBC INSTANTANEOUS DOWNWELLING CLEAR SKY LONGWAVE FLUX AT BOTTOM W m-2 Time, south_north, west_east
OLR TOA OUTGOING LONG WAVE W m-2 Time, south_north, west_east
ALBEDO ALBEDO - Time, south_north, west_east
CLAT COMPUTATIONAL GRID LATITUDE, SOUTH IS NEGATIVE degree_north Time, south_north, west_east
ALBBCK BACKGROUND ALBEDO Time, south_north, west_east
EMISS SURFACE EMISSIVITY Time, south_north, west_east
NOAHRES RESIDUAL OF THE NOAH SURFACE ENERGY BUDGET W m{-2} Time, south_north, west_east
TMN SOIL TEMPERATURE AT LOWER BOUNDARY K Time, south_north, west_east
XLAND LAND MASK (1 FOR LAND, 2 FOR WATER) Time, south_north, west_east
ZNT TIME-VARYING ROUGHNESS LENGTH m Time, south_north, west_east
UST U* IN SIMILARITY THEORY m s-1 Time, south_north, west_east
PBLH PBL HEIGHT m Time, south_north, west_east
HFX UPWARD HEAT FLUX AT THE SURFACE W m-2 Time, south_north, west_east
QFX UPWARD MOISTURE FLUX AT THE SURFACE kg m-2 s-1 Time, south_north, west_east
LH LATENT HEAT FLUX AT THE SURFACE W m-2 Time, south_north, west_east
ACHFX ACCUMULATED UPWARD HEAT FLUX AT THE SURFACE J m-2 Time, south_north, west_east
ACLHF ACCUMULATED UPWARD LATENT HEAT FLUX AT THE SURFACE J m-2 Time, south_north, west_east
SNOWC FLAG INDICATING SNOW COVERAGE (1 FOR SNOW COVER) Time, south_north, west_east
SR fraction of frozen precipitation - Time, south_north, west_east
SAVE_TOPO_FROM_REAL 1=original topo from real/0=topo modified by WRF flag Time
ISEEDARR_SPPT Array to hold seed for restart, SPPT Time, seed_dim_stag
ISEEDARR_SKEBS Array to hold seed for restart, SKEBS Time, seed_dim_stag
ISEEDARR_RAND_PERTURB Array to hold seed for restart, RAND_PERT Time, seed_dim_stag
ISEEDARRAY_SPP_CONV Array to hold seed for restart, RAND_PERT2 Time, seed_dim_stag
ISEEDARRAY_SPP_PBL Array to hold seed for restart, RAND_PERT3 Time, seed_dim_stag
ISEEDARRAY_SPP_LSM Array to hold seed for restart, RAND_PERT4 Time, seed_dim_stag
C1H half levels, c1h = d bf / d eta, using znw Dimensionless Time, bottom_top
C2H half levels, c2h = (1-c1h)*(p0-pt) Pa Time, bottom_top
C1F full levels, c1f = d bf / d eta, using znu Dimensionless Time, bottom_top_stag
C2F full levels, c2f = (1-c1f)*(p0-pt) Pa Time, bottom_top_stag
C3H half levels, c3h = bh Dimensionless Time, bottom_top
C4H half levels, c4h = (eta-bh)*(p0-pt), using znu Pa Time, bottom_top
C3F full levels, c3f = bf Dimensionless Time, bottom_top_stag
C4F full levels, c4f = (eta-bf)*(p0-pt), using znw Pa Time, bottom_top_stag
PCB base state dry air mass in column Pa Time, south_north, west_east
PC perturbation dry air mass in column Pa Time, south_north, west_east
LANDMASK LAND MASK (1 FOR LAND, 0 FOR WATER) Time, south_north, west_east
LAKEMASK LAKE MASK (1 FOR LAKE, 0 FOR NON-LAKE) Time, south_north, west_east
SST SEA SURFACE TEMPERATURE K Time, south_north, west_east
SST_INPUT SEA SURFACE TEMPERATURE FROM WRFLOWINPUT FILE K Time, south_north, west_east