LND Variable Definitions

SB227T39_N1850_f09_tn14
and
obs

Set 6 Description: Line plots of annual trends in regional soil water/ice and temperature, runoff, snow water/ice, photosynthesis
'D_' denotes a variable derived from two or more history file variables (lnd_func.ncl)
'C_' denotes a CASA model variable.

Variable Name | Long Name | NativeUnits | ReportedUnits
--- | --- | --- | ---
TOTECOSYSC | total ecosystem C, incl veg but excl cpool | gC/m^2 | PgC
TOTSOMC | total SOM carbon | gC/m^2 | PgC
TOTVEGC | total vegetation C, excluding cpool | gC/m^2 | PgC
TOTLITC | total litter carbon | gC/m^2 | PgC
CWDC | coarse woody debris carbon | gC/m^2 | PgC
LAND_USE_FLUX | total C emitted from land cover conversion and wood product pools | gC/m^2/s | PgC/y
NEE | net ecosys exchange of C;incl fire flx;pos for source | gC/m^2/s | gC/m^2/d
GPP | gross primary production | gC/m^2/s | gC/m^2/d
NPP | net primary production | gC/m^2/s | gC/m^2/d
AR | autotrophic respiration (MR + GR) | gC/m^2/s | gC/m^2/d
HR | total hetereotrophic respiration | gC/m^2/s | gC/m^2/d
NEP | net ecosystem production;excl fire flx;pos for sink | gC/m^2/s | gC/m^2/d
NEE | net ecosys exchange of C;incl fire flx;pos for source | gC/m^2/s | gC/m^2/d
GPP | gross primary production | gC/m^2/s | gC/m^2/d
NPP | net primary production | gC/m^2/s | gC/m^2/d
AR | autotrophic respiration (MR + GR) | gC/m^2/s | gC/m^2/d
HR | total hetereotrophic respiration | gC/m^2/s | gC/m^2/d
ER | total ecosystem respiration (AR + HR) | gC/m^2/s | gC/m^2/d
SUPPLEMENT_TO_SMINN | supplement to mineral nitrogen | gN/m^2/s | gN/m^2/d
SMINN_LEACHED | Nitrogen Leached | gN/m^2/s | gN/m^2/d
COL_FIRE_CLOSS | total column-level fire C loss | gC/m^2/s | gC/m^2/d
COL_FIRE_NLOSS | total column-level fire N loss | gN/m^2/s | gN/m^2/d
PFT_FIRE_CLOSS | total pft-level fire C loss | gC/m^2/s | gC/m^2/d
PFT_FIRE_NLOSS | total pft-level fire N loss | gN/m^2/s | gN/m^2/d
FIRESEASONL | annual fire season length | days | days
FIRE_PROB | daily fire probability | 0-1 | 0-1
ANN_FAREA_BURNED | annual total fractional area burned | proportion | proportion
MEAN_FIRE_PROB | e-folding mean of daily fire probability | 0-1 | proportion
WA | water in the unconfined aquifer | mm | mm
WT | total water storage | mm | mm
ZWT | water table depth | m | m
QCHARGE | aquifer recharge rate | mm/s | mm/d
FCOV | fractional area with water table at surface | unitless [0-1] | unitless [0-1]
TSA | 2m air temperature | K | K
PREC | ppt: rain+snow | mm/s | mm/d
TOTRUNOFF | Runoff:qover+qdrai+qrgwl | mm/s | mm/d
SNOWDP | snow height | m | m
FSDS | atmospheric incident solar radiation | W/m^2 | W/m^2
ALBEDO | all-sky albedo:FSR/FSDS | proportion | % reflected
FSA | absorbed solar radiation | W/m^2 | W/m^2
FLDS | atmospheric longwave radiation | W/m^2 | W/m^2
FIRE | emitted infrared (longwave) radiation | W/m^2 | W/m^2
FIRA | net infrared (longwave) radiation | W/m^2 | W/m^2
RNET | net radiation:fsa-fira | W/m^2 | W/m^2
RNET | net radiation:fsa-fira | W/m^2 | W/m^2
FSH | sensible heat | W/m^2 | W/m^2
LHEAT | latent heat:FCTR+FCEV+FGEV | W/m^2 | W/m^2
FCTR | canopy transpiration | W/m^2 | W/m^2
FCEV | canopy evaporation | W/m^2 | W/m^2
FGEV | ground evaporation | W/m^2 | W/m^2
FGR | heat flux into snow/soil (includes snow melt) | W/m^2 | W/m^2
BTRAN | transpiration beta factor | unitless | unitless
TLAI | total one-sided leaf area index | m2/m2 | m2/m2