Description of output-files

Output of cohort data

General structure: per variable one data file as follows

<sitename>_<var>.<type><anz_sim>

with:

<sitename> location name
<var> content description
<type> typ of output file
<anz_sim> number of simulation

Detailed information about yearly and daily output can be found in the respective chapters.
The following tables give an overview on the names of the variables of the cohorts which are listed in daily or yearly resolution and their description. Additional, there are two output files with a special format.

The output shows the values of one tree of the respective cohort.

Daily output of cohort variables (one tree, <type> = out)

<var>	content	4C variable name*)	unit
ass	Optimum gross assimilation rate	assi	kg DW/d
aevi	Daily evaporation of intercepted water	aev_i	mm/d
ddi	Daily drought index	drindd	-
dem	Demand for soil water	demand	mm/d
dips	Drought index for Photosynthesis calulation	drindps	cum
gp	Unstressed stomatal conductance	gp	mol/m²*d
gsdps	Number of growingseason days per time step of photosynthesis	ndaysps	-
intcap	Interception (precipitation absorbed by the cohort per m² patch area)	sum of intcap(layer)	mm/d
interc	Interception storage (total intercepted precipitation by the cohort per m² patch area)	interc_st	mm/d
Ndemc_d	Daily N demand per tree	Ndemc_d	g N/d
Nuptc_d	Daily N uptake per tree	Nuptc_d	g N/d
N_pool	Daily N_pool per tree	N_pool	g N/d
RedNc	Daily photosynthesis nitrogen reduction factor	RedNc	-
resp	Leaf respiration rate	resp	g C/d
respaut	Daily autotrophic respiration rate	respaut	g C/d
respbr	Daily respiration rate of branches	respbr	g C/d
respfol	Daily respiration rate of leaves	respfol	g C/d
respfrt	Daily respiration rate of fine roots	respfrt	g C/d
resphet	Daily heterotrophic respiration rate	resphet	g C/d
respsap	Daily respiration rate of sapwood	respsap	g C/d
sup	Supply of soil water to roots	supply	mm/d
totfpar	Total fraction of PAR absorbed per m² patch area	totFPAR	-

*) internal used variables

 

Yearly output of cohort variables (one tree, <type> = out)

<var>	content	4C variable name*)	unit
age	Tree-age per cohort	x_age	years
ahb	Cross sectional area of heart wood at stem base	x_ahb	cm²
ahbasrel	Relation of heartwood to sapwood at stem base	x_ahb / Asapw	-
ahc	Cross sectional area of heart wood at crown base	ahc	cm²
ahcasrel	Relation of heartwood to sapwood at crown base	ahc / Asapw	-
asapw	Cross sectional area of sapwood in bole space	Asapw	cm²
atr	Number of alive trees per cohort	ntreea	-
bioi	Net biomass increment	bio_inc	kg DW/y
botlayer	Number of bottom layer of crown	botLayer	-
cpa	crown projection area	crown_area*ntreea	m²
crt	coarse root biomass	x_crt	kg DW
daybb	Day of bud burst	day_bb	DOY
dcrb	Diameter of stem at crown base	dcrb	cm
diac	Drought index for Allocation calculation	drindal/ndaysgr
diam	Diameter at breast height	diam	cm
dtr	Number of dead trees per cohort	ntreed	-
dwd	Stem biomass of dead trees per cohort	ntreed*(x_sap+x_hrt)	kg DW
fol	Foliage biomass	x_fol	kg DW
foli	Foliage increment	fol_inc	kg DW/y
frt	Fine root biomass	x_frt	kg DW
frti	Net fine root increment	frt_inc	kg DW/y
frtrel	Relative fine root fraction per soil layer	frtrel(1)	-
geff	Growth efficiency	geff	kg/m²
gfol	Gross growth rate foliage	gfol	kg DW/y
gfrt	Gross growth rate fineroot	gfrt	kg DW/y
grossass	Gross assimilation rate	grossass	kg DW/y
gsap	Gross growth rate sapwood	gsap	kg DW/y
gsd	Number of growing season days per year	ndaysgr	days
hbo	Bole height	x_hbole	cm
hea	Number of years without stress	x_health	years
hei	Total tree height	height	cm
hrt	Heartwood biomass	x_hrt	kg DW
leaf	Leaf area per tree	t_leaf	m²
maintres	Maintenance respiration	maintres	kg DW/y
nas	Realized net assimilation rate	netass	kg DW/y
Ndemc_c	N demand per tree and year	Ndemc_c	g N/y
Nfol	N content of foliage	N_fol	g N
Npool	N pool per tree	N_pool	g N
npp	NPP	npp	kg DW/y
Nstr	Ratio of N uptake to demand per tree and year	Nuptc_c /Ndemc_c	-
Nuptc_c	N uptake per tree and year	Nuptc_c	g N/y
rdpt	Rooting depth calculated with TRAP model	x_rdp	cm
rooteff	Root uptake efficiency factor	rooteff(1)	-
sap	Sapwood biomass	x_sap	kg DW
sfol	Senescence rate foliage	sfol	kg DW/y
sfrt	Senescence rate fineroot	sfrt	kg DW/y
spn	Species number of the cohort	species	-
ssap	Senescence rate sapwood	ssap	kg DW/y
stem	Stemwood biomass increment	stem_inc	kg DW/y
str	Number of stress years	x_stress	-
tdb	Total dead biomass per cohort	dbio	kg DW/y
toplayer	Number of top layer of crown	topLayer	-
trman	Total number of harvested trees per cohort	ntreem	-
ttb	Total tree biomass	totbio	kg DW
watleft	Water left in next layer	watleft

*) internal used variables

 

Special output of cohort variables with flag_cohout=2 (one tree, <type> = res)

<var>	content
allo	Intermediate results from allocation module
prod	Intermediate results from the NPP module
light	Special output from light models with different outputs and description inside the file

 

allo: Intermediate results from allocation module for one tree

name	4C variable name*)	description	unit
year	time_cur	actual year	-
coh	ident	identification number of cohort	-
NPP	NPP	net primary production	kg DW/y
dbh	DBH	diameter at breast height	cm
growthrate	growthrate	height growthrate	cm
Fnew	Fnew	new foliage mass	kg DW
Fmax	Fmax_old	maximum foliage biomass	kg DW
Htnew	Htnew	total tree height	cm
lambdaf	lf	solution of equation system of partitioning	-
lambdas	ls	solution of equation system of partitioning	-
lambdar	lr	solution of equation system of partitioning	-
lambdac	lc	solution of equation system of partitioning	-
x1	x1	solution of quadratic equation of partitioning	-
x2	x2	solution of quadratic equation of partitioning	-

*) internal used variables in subroutine partition

 

prod: Intermediate results from NPP module for one tree

name	4C variable name*)	description	unit
year	time_cur	actual year	-
day	iday	actual day	-
coh	ident	identification number of cohort	-
PAR	PAR	total available Photosynthetically Active Radiation	mol/m²
totFPAR	totFPAR	total fraction of Photosynthetically Active Radiation absorbed per m² patch area	-
LUE	LUE	light use efficiency	g C/mmol
NPP	NPP	net primary production	kg DW
netass	netass	realized net assimilation rate	kg DW/d
grossass	grossass	gross assimilation rate	kg DW/d
nDaysPS	ndaysps	number of growing season days per time step of photosynthesis module	-

*) internal used variables