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### Daily Output Daily output variables are the state variables valid at the actual day. Naming of the output file as follows <sitename>_<var>.out<anz_sim> with: <sitename> location name <var> content description <anz_sim> number of simulation example: site1_day.out2 daily output of several scalars of water and C/N balance at location site1 from the second simulation run Daily output for cohorts is decribed in the chapter cohort outputs. The following tables give an overview of the name and contents of the output files with daily data Daily output of scalars and fields
name | content | 4C variable name*) | unit
Cday | C balance |  |
Chumd | C content of humus (hum) per soil layer | C_hum | g C/m²
Copmd | C content of organic primary matter (OPM) per layer | C_opm | g C/m²
COPMfract | C content of organic primary matter (OPM) fractions in the entire soil profile |  |
Cbcd | C content of biochar per layer | C_bc | g C/m²
day | collection of daily scalar variables |  |
day_short | short daily output |  |
NH4 | NH4 content per soil layer | NH4 | g N/m²
NH4c | NH4 concentration per soil layer |  | mg N/l
NO3 | NO3 content per soil layer | NO3 | g N/m²
NO3c | NO3 concentration per soil layer |  | mg N/l
Nhumd | N content of humus (hum) per soil layer | N_hum | g N/m²
Nopmd | N content of organic primary matter (OPM) per soil layer | N_opm | g N/m²
NOPMfract | N content of organic primary matter (OPM) fractions in the entire soil profile |  |
Nuptd | nitrogen uptake by roots per soil layer | Nupt | g N/m²
Nmind | nitrogen mineralisation per layer | Nmin | g N/m²
perc | percolation of water per soil layer | perc | mm
specd | species variables | svar |
temp | soil temperature per soil layer | temps | °C
wat_potent | soil water potential per layer | wat_potent | hPa
water | soil water content per soil layer | wats | mm
watvol | soil water content per soil layer | watvol | vol%
wupt | water uptake by roots per soil layer | wupt_r | mm
*) internal used variables Cday: daily carbon balance
name | description | 4C variable name*) | unit
Day | day of the year | iday | -
Year | year of simulation | time | -
gross_Phot | gross photosynthesis | phot_C | g C/m²
gross_Ass | gross assimilation | dailygrass_C | g C/m²
net_Ass | net assimilation | dailynetass_C | g C/m²
pot_NPP | potential net primary production (= no water and nutrient limitation) | dailypotNPP_C | g C/m²
NPP | net primary production | dailyNPP_C | g C/m²
NPP_day | NPP of all cohorts and species after scaling by temperature | NPP_day | g C/m²
GPP_day | GPP of all cohorts and species after scaling by temperature | GPP_day | g C/m²
NEE | net ecosystem exchange | respsoil - dailyNPP_C | g C/m²
TER_day | TER of all cohorts and species after scaling by temperature | TER_day | g C/m²
autresp | autotrophic respiration | dailyautresp_C | g C/m²
Resp_aut | autotrophic respiration after scaling by temperature | Resp_aut(j) | g C/m²
Resp_het | heterotrophic respiration | respsoil | g C/m²
Resp_fol | maintenance leaf respiration | dailyrespfol_C | g C/m²
FaPar | fraction of absorbed light for the whole patch | totFPARsum * 100 | %
*) internal used variables day: daily scalar variables
name | description | 4C variable name*) | unit
Day | day of the year | iday | -
Year | year of simulation | time | -
Temp | mean air temperature of the day | airtemp | °C
Rad | solar radiation of the day | rad | J/cm²
Prec | precipitation of the day | prec | mm/m²
Intercep | canopy interception of the day | interc_can | mm/m²
Snow | water equivalent of snow | snow | mm/m²
PET | potential evapotranspiration | pet | mm/m²
AET | actual evapotranspiration | aet | mm/m²
Transdem | total potential transpiration demand | trans_dem | mm/m²
Transtree | potential transpiration demand of trees | trans_tree | mm/m²
Transsveg | potential transpiration demand of ground vegetation | trans_sveg | mm/m²
GP_can | unstressed stomatal conductance of the canopy | gp_can | mol/m²
Respsoil | soil respiration | respsoil | g C/m²
Nleach_d | N leaching from last layer | Nleach | g N/m²
Nupt_d | total daily N uptake | Nupt_d | g N/m²
Nmin_d_c | cumulative netto mineralisation | N_min | g N/m²
N_antot | total anorganic N of soil | N_an_tot | g N/m²
N_Depo | total N deposition | <(NO_dep + NH_dep) * 1000> | g N/m²
Cover | covering | cover | -
LAI | leaf area index | LAI | -
s_Light | relative light intensitiy on the ground | Irelpool(0) | -
toFPARcan | fraction of absorbed light for the whole canopy | totFPARcan | -
fire_indi | forest fire indicator (east) | fire_indi | -
fire_e | forest fire index east (M68 international) | fire(2)%index | -
fire_w | forest fire index west | fire(1)%index | -
snowday | days with continious snow cover | snow_day | day
drIndd | drought index for the whole stand as average over all cohorts weighted by number of trees | drIndd | -
buckroot | bucket size of rooting zone | bucks_root | mm
buck100 | bucket size of 1 m depth | bucks_100 | mm
cl_WatBal | climatic water balance as difference between precipitation and potential evapotranspiration | < prec-pet > | mm
*) internal used variables day_short: short daily output
name | description | 4C variable name*) | unit
Date | date | iday month time | -
fire_e | fire index east (M68 international) | fire(2)%index | -
cl_WatBal | climatic water balance | prec - pet | mm
*) internal used variables specd: daily species variables
name | description | 4C variable name*) | unit
Day | day of the year | iday | -
Year | year of simulation | time | -
species_name | short name of species | spar(j)%species_short_name | -
number | internal species number | j | -
Ndem | cumulative daily nitrogen demand per species | svar(j)%Ndem | g N/m²
Nupt | cumulative daily nitrogen uptake per species | svar(j)%Nupt | g N/m²
Ndemp | nitrogen demand per species and potosynthesis period | svar(j)%Ndemp | g N/m²
Nuptp | nitrogen uptake per species and potosynthesis period | svar(j)%Nuptp | g N/m²
RedN | nitrogen reduction factor of photosynthesis | svar(j)%RedN | -
*) internal used variables Expressions in < ... > are calculations befor output ###
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