Use Mosaic's FILE -> "Find In Current" option to locate a specific variable definition.
I/O tag indicates whether variable is input or output.
ABSPK I Number of layers above the sprinkler where
droplet evaporation is occurring.
ADUM Ratio of upward to downward fluxes for diffuse radiation.
ADUM1 O Ratio of up VIS radiation flux in a layer
divided by downward flux
ADUM2 O Ratio of up NIR radiation flux in a layer
divided by downward flux
ADUM3 O Ratio of up THERM radiation flux in a layer
divided by downward flux
AKCPSO O Thermal conductivity for soil layer
(Jm-1s-1K-1), or canopy layer (m2s-1)
AKCPY(50) Eddy conductivity for canopy layers
AKCPY1 O Eddy conductivity of layer 1 above canopy
(Jm-1s-1C-1)
AKCPYS O Eddy conductivity above the soil surface
at the critical height (Jm-1s-1C-1)
AKH(50) O Therm.conductivity of layer div.by layer height incr.
(ms-1)
AKSMMH O Saturated hydraulic conductivity (mmh-1)
AKSOIL(50) Thermal conductivity of soil layer
AKW O Capillary conductivity of a layer in soil
divided by layer depth increment (kgsm-4)
ALAM Special conversion factor for wet bulb temperature
ALEAF(3) Leaf absorptivity for VIS, NIR and thermal
AM O Wind profiles in canopy factor from
Landsberg, James & Jarvis
AMFULL I Canopy velocity profile coefficient (1.5)
ANIRR I Polynomial coefficient for NIR reflectance
as a function of source incidence angle.
ANIRT I Polynomial coefficient for NIR transmittance
as a function of source incidence angle.
ANSTOM I Light response characteristics of stomata.
APAR O Absorbed PAR by canopy (Wm-2)
APARD O Absorbed PAR by canopy (Wm-2) on a daily
basis.
APRTOT
AROOT O Rooting depth coefficient, exponent on root
length density vs depth (usually 1-10)
AROTIN(IDAY) Rooting depth coefficient at day IDAY
ASOLR O Absorbed solar radiation by canopy (Wm-2)
ASOLRD O Daily total absorbed solar radiation by the
canopy (MJm-2d-1)
AVISR I Polynomial coefficient for VIS reflectance as
a function of source incidence angle.
AVIST I Polynomial coefficient for VIS transmittance
as a function of source incidence angle.
BD I Bulk density
BDYANG I/O Body angle of sprinkler jet (degrees)
BETA0 I Azimuth angle of minimum leaf area in azimuthal
beta distribution.
BKV I Coefficient for vapor pressure deficit effect on
stomata.
BMFLX1 O Flux of direct beam radiation above a
layer (Wm-2)
BMFLX2 O Flux of direct beam radiation above a
layer (Wm-2)
BMFLX3 O Flux of direct beam radiation above a
layer (Wm-2)
BN4 O Bidirectional reflectance factor for different
wavelengths.
BNIRR I Polynomial coefficient for NIR reflectance as a
function of source incidence angle.
BNIRT I Polynomial coefficient for NIR transmittance as
a function of source incidence angle.
BSPK I Number of layers below the sprinker where droplet
evaporation is occurring.
BVISR I Polynomial coefficient for VIS reflectance as a
function of source incidence angle.
BVIST I Polynomial coefficient for VIS transmittance as
a function of source incidence angle.
BX O Power in soil potential vs. water content
C2 O Predicted daily soil heat storage for
Nebraska modified Penman equation
CAIR I Ambient atmospheric CO2 concentration (ppm)
CETSUM ..HETSUM parameters for droplet evaporation
calculation (see parameter library)
CIDCA O Ratio of leaf internal CO2 concentration
over the CO2 concentration of the air.
CIDCAI I If = -1, use CIDCA in code, otherwise use
CIDCA=CIDCAI
CILAY O Leaf internal CO2 concentration (ppm)
CILEAF(I,J) O Intercellular CO2 concentration of leaves in
angle class I and layer J (1E-6 mol/mol)
CLAI O Cumulative leaf area index (top down)
CLAI1 O Cumulative leaf area index from the top
of the canopy
CLAI2 O Cumulative leaf area index from the top
of the canopy
CLAI3 O Cumulative leaf area index from the top
of the canopy
CLAYFC I Clay fraction
CLODSZ I Soil clod size index
CLUMP I Clumping factor for canopy structure.
CNIRR I Polynomial coefficient for NIR refectance as a
function of source incidence angle.
CNIRT I Polynomial coefficient for NIR transmittance as
a function of source incidence angle.
CO2SOL O Soil surface CO2 flux (umol CO2 m-2 s-1)
CONCPY O Condensation on the canopy (gm-2)
CONDDY O Maximum canopy condensation during the day
(mgm-2=mm)
CONMIN I Minimum stomatal conductance (moles m-2 s-1)
CONTOT[JMAX] O Total condensation in a layer (gm-2)
CONTOT < 0 means layer had condensation.
CP(50) O Thermal capacity of layer (MJm-2s-1K-1)
CPCPSO O Thermal capacity of soil layer (MJm-3K-1)
or canopy layer (kJm-3K-1)
CPESTR O Canopy storage of water vapor
CPHSTR O Heat storage in the canopy (Wm-2)
CPSOIL(50) Thermal capacity of soil layer
CPYTR Canopy transpiration?
CRCOEF O Crop coefficient for simple ET calculations
CSFCLF O CO2 conc at surface of leaf (umol/mol)
CSLAY O Leaf conductivity (stomatal and bound.lay.)
(mol-1 H2O m2s)
CSLEAF Leaf stomatal and boundary layer conductance
for angle class I and layer J (mol-1 H2O m2s)
CT(i) Fraction of beam flux density into angle class i in
beam flux as would be measured perpendicular to the
incidence angle.
CTWA ..GTWA parameters for irrigation water
temperature calculation (see parameter library)
CUCOND I/O Cuticilar conductivity for water vapor (mol/m2/sec)
CUMHR O Plottting variable with cumulative day and
decimal fractions of hours
CVISR I Polynomial coefficient for VIS reflectance as a
function of source incidence angle.
CVIST I Polynomial coefficient for VIS transmittance as
a function of source incidence angle.
CW O Capillary water capacity of soil divided
by a layer depth increment (kgsm-4)
D(K,J) Downward diffuse radiation above sublayer J divided
by the total radiation above the canopy,
subscript wavelength band K.
D1 I VPD for start of stomatal closure (mb)
D2 I VPD for end of stomatal closure (mb)
D1 O Downward VIS radiation flux above a layer
(Wm-2)
D2 O Downward NIR radiation flux above a layer
(Wm-2)
D3 O Downward THERM radiation flux above a layer
(Wm-2)
DAKS I Saturating water conductivity (optional).
DBX I Exponent in the soil moisture release curve (optional).
DELD I Convergence criteria of diff. equation
solution
DELD O Convergence criteria for soil water flow
equations (kgm-2s-1)
DELD O Convergence factor for soil water equations
DELH20 O Change in soil water storage from last
time step (mm)
DELHA O Coefficient in the temperature dependant
portion of electron transfer in photosynthesis.
DELHL O Same as DELHA.
DELHH O Same as DELHA.
DELT O Temperature difference between leaf in angle
class I and layer J and air in layer J (C)
DELTAE
DELTAT
DELWD O Change in soil water storage from previous
day (mm)
DF Leaf area index increment of one canopy layer.
DFMIN I/O Thinnest leaf layer in terms of LAI units
DIANOZ I Sprinkler nozzle diameter (mm)
DISP O Canopy displacement height (m)
DISPDH I DISP/H
DISTLS(angle,hour) Distribution of leaf-normal to sun angle for a given
hour (sun direction).
DMAX I Maximum size of leaf
DMINC O Dry matter increment (mg of dry weight m-2s-1)
DMINCD O Daily dry matter increment
(mg of dry weight m-2d-1)
DPDMIN I For sprinkler irrigation: minimum droplet
diameter (mm)
DPE I Air entry potential (J/kg) (optional). If 0 is
entered it is calculated by G. Cambbell's
equations.(-2.5J/kg)
DPEVP O Droplet evaporation from sprinkler irrigation.
DPSTOR O Heat storage in droplets (prop to TDROPI-TIRRIG)
DPVMMH O Droplet evaporation in mm/hr
DRAIND O Daily total drainage at lower boundary
condition (mm)
DRAIN O Drainage out bottom of root zone
(kgm-2s-1=mms-1)
DRGRAV O Drainage from soil by gravity
DRHSFC I/O Value to match soil water flow equations
with canopy vapor flow equations
DRIP(20) ???
DSTNET(i,j) O Net total radiation of all wavelengths into layer j
and angle class i.
DSTRAD(k,i,j) Total radiation incident in layer j and angle class
j of wavelength k (diffuse+direct beam).
DSTNET O Net all-wave radiation in angle class I and
layer J (Wm-2)
DSTNG ???
DSTNIR O Incident NIR in angle class I and layer J
(Wm-2)
DSTTHR O Incident thermal radiation in angle class I
and layer J (Wm-2)
DSTVIS O Incident visible radiation in angle class I
and layer J (Wm-2)
DT Length of time step for a single computation
DTINT I Length of the time step (sec) for ballistic
droplet calculations
DTNEW I Time at which to go to longer intervals
EAIR O Air vapor pressure in canopy (mb)
ECOMPL O Light compensation point (irradiation level where
C02 fixation through photosynthesis equals release
by respiration).
ECOND O Vertical water flux in each layer (Wm-2)
ECPY O Evapotranspiration from canopy (Wm-2)
ECPYD O Daily mean evapotranspiration above canopy
(Wm-2) (+ for evap. and - for cond.)
ECPYDV O Canopy only evapotranspiration in mm/hr
ECPYS Evaporation flux from soil calculated from
canopy vapor flow equations (Wm-2)
ELUAP O Efficiency of light use based on APAR
(g CO2 MJ-1)
ELUAS O Efficiency of light use based on ASOLR
(g CO2 MJ-1)
ELUIP O Efficiency of light use based on PARI
(g CO2 MJ-1)
ELUIS O Efficiency of light use based on SOLRI
(g CO2 MJ-1)
ELUPAD O Same as ELUAP except it is a daily total.
ELUPID O Same as ELUIP except it is a daily total.
ELUSAD O Same as ELUAS except it is a daily total.
ELUSID O Same as ELUIS except it is a daily total.
EMIS I/O Thermal emissivity of leaf
EMISOL I/O Thermal emissivity of the soil
EN(MH,50) Vapor pressure (soil moisture) profile through
all layers
END O Sunset (hours.tenths)
ESOIL Soil thermal radiation flux density
ET(50) Evapotranspiration from canopy layers ???
ETBCD O Daily ET from Blaney Criddle eq. (mm)
ETFIX I Polynomial coefficients for droplet evaporation
rate for layers below the sprinkler height.
ETJHD O Daily ET from Jensen-Haise eq. (mm)
ETMIC O Canopy evapotranspiration (1E-6 m)
ETMMD O Daily ET (mm)
ETMMH O Canopy + soil evapotranspiration in mm/hr
ETOTW O Evapotranspiration in a canopy layer
(mgm-2s-1) (are these units right??? how is this
diff from ETOTWT???)
ETOTWT O Evaporation flux above the canopy on a
weight basis (mgm-2s-1)
ETPEND O Daily ET from Penman equation (mm)
ETPM O Canopy ET by Penman-Monteith equ. using soil
heat flux from CUPID
ETPM2 O Canopy evapotranspiration by Penman-Monteith
equations neglecting soil heat flux
ETPMD O Daily ET from Penman-Monteith eq. (mm)
ETPNEB O Daily ET from Nebraska modified Penman
equation (mm)
ETPTD O Daily ET from Priestly-Taylor eq. (mm)
ETSUM I Polynomial coefficients for droplet evaporation
flux summed over all layers above the sprinkler
height.
ETTOT O Total droplet evaporation (+) or condensa-
tion (-) above the canopy (Wm-2)
EVAP O Leaf ET in angle class I and layer J (mm)
EVAPG(J) O Layer average for leaf evapotranspiration (Wm-2)
(= GEVAP(I,J) summed over angle class)
EVINT(J) ???
EVSMIC O Soil evaporation (microns).
EVSMMH O Soil evap in mm/hr
EVTOT O Evaporation flux from the canopy on a
weight basis (mgm-2s-1)
EXPDIF O Fraction of diffuse radiation that passes unintercepted
through one layer.
EXPDIR O The direct beam non-interception factor
FACJ O Coefficient in light dependent portion of
photosynthesis.
FACTE
FACTIR I Factor that multiplies sky emissivity calculated
in subroutine SKYIR from Brusaert's equation.
See further notes on this topic.
FACTV Factor that wind value in input file is
multiplied by to get wind value used by model
FBEAM1 O Fraction of total visible radiation above
canopy (beam as sensed by horizontal sensor)
FBEAM2 O Fraction of total NIR radiation above
the canopy
FBEAM(k) I Fraction of direct beam radiation of wavelengths k in
total radiation of those wavelengths above canopy
(horiz.sensor).
FBEAM1 I ???
FC O Field capacity of -1/3 bar (% by volume).
FEHIST O Light history factor for photosynthesis
modeL
FILT O Infiltration into soil (mm)
FILTD O Daily total infiltration (mm)
FR(i) O Fraction of leaf area in each I'th leaf
inclination angle class including all azimuth angles.
A spherical distribution is assumed.
FRAREA(i,j): Fraction of sunlit leaf area in layer j that is
contained in angle class i (FRAREA of one layer
adds up to SUNLIT).
FRAZ(I) O Fraction of leaf area in each I'th leaf
azimuth angle class.
FREQR
FRLIVE(IDAY) Fraction of LAI which is live vegetation on day IDAY
FROOT(50) Fraction of root system extracting water in a layer
FRSTEM I/O Fraction of intercepted precip. that runs
down the stem
FRWET(20) ???
FRWTMX I/O Maximum fraction of leaf area wetted by precipitation
FS I Ratio of stomatal conductance on the top and
bottom of the leaf.
G2 O ???
GEVAP(I,J) O Evapotranspiration per ground area in angle class i
and layer j. (Wm-2)
GHEAT(I,J) O Sensible heat flux per ground area in angle
class i and layer j. (Wm-2)
GHWATR(I,J) ???
GR(ALPHA) I Fraction of leaf area input at each angle alpha.
GSIN O Input CO2 concentration point in the absense of
dark respirtaion (micromoles per mole).
H O Height of canopy (m)
HCPY O Sensible heat from soil and canopy to atmosphere
(Wm-2) (= QCOND(2))
HCPYD O Daily mean sensible heat above canopy (Wm-2)
(+ for canopy warmer than air)
HCPYDL O Daily mean sensible heat above canopy
averaged over daylight hours (Wm-2)
HCPYSD O Daily mean sensible heat above soil (Wm-2)
HCPYS O Sensible heat flux from soil to canopy
(Wm-2)
HDSOIL O Daily mean soil thermal conduction into
soil (Wm-2)
HEATG(J) O Sensible heat flux per ground area in layer j. (Wm-2)
(=GHEAT(I,J) summed over angle class)
HEIGHT O Height of the top of layer (m)
HFDAY O Half day length (hours)
HH Total conductance for evaporating water vapor from
the leaves.
HPSI O Water stress factor
HSOIL O Soil heat conduction flux (Wm-2)
(+ for into soil)
HSOILD O Same as HSOIL except it is a daily total.
HSLEAF Rel Hum at the surface of the leaf
HT(IDAY) Height of canopy at day IDAY
HTDROP O Maximum height of droplets (m)
HTOT O Sensible heat flux above canopy (Wm-2)
( = HEATG(J) summed over all canopy layers )
HTSPK I/O Height of sprinkler nozzle (m)
IBIDIR Code: I 0: no bidirectional radiation fluxes
1: bidirectional radiation fluxes
IC3C4 I/O Code for C3 plant (0), C4 plant (1)
0: C3 Farquhar
1: C4 Corn Berry model w/ Index for stom
2: C4 Big Blue Stem Berry model w/ Index for stom
3: C3 Soybean Berry model w/ Index for stom
10: C3 Farquhar
11: C4 Corn Farquhar model stom use D1 & D2
12: C4 Big Blue Stem Farquhar model stom use D1 & D2
13: C3 Soybean Farquhar model stom use D1 & D2
ICUMDY I/O Cumulative day
IDAY O Daily loop variable (from 1 to NODAYS)
IDECL O Solar declination
IDOROC I
IEQTM O Equation of time for the sun
IHRWET[JMAX] Accumulated hours of leaf wetness for a layer
ILAIUP I/O Code for updating canopy structure data
(=3 for reading in).
IMUNU I Index controlling input leaf inclination angle
distribution. May have values 0, 1, 2.
1: meu & neu input directly to calc leaf angle dist
2: mean and std. dev. of leaf angle dist. input
IMUNUA I Index controlling input leaf azimuth angle
distribution.
0: Leaves symmetric about azimuth (meu=neu=1.0)
1: Mean and std. dev. of azimuth angle dist
INDAT O Code for the frequency of data
(=1 for hourly)
INOINT I
INTSKY Flag indicating RADTOP(3) was not specified in input
so we should calculate it.
IPOT Index indicating method of calculation for RATIO(IHR),
=1: fixed
IPNT I Code numbers for output format (see key)
IPRTIN I
IROCLY
IRRCHK O Flag to specify type of precipitation:
0 = no precipitation
1 = overhead sprinkler irrigation
2 = furrow irrigation
3 = rainfall
ISPEC Code I (0: no vertical profiles printed,
1:prints vertical profiles (see key))
ISPHER I 1: Leaf angle distribution is spherical
0: Other inputs are used
ISPKTY I Sprinkler type: -1: Impact, 0: Spray, 1: CDS
ISPN I Hours of special profile output
ITASSL Code I 0: assuming top canopy layer has no tassels
1: assuming tassels are present
ITER1 O Number of iterations required for convergence
of scattered VIS radiation equations
ITER2 O Number of iterations required for convergence
of scattered NIR radiation equations
ITER3 O Number of iterations required for convergence
of scattered THERM radiation equations
ITOT I # leaf (inclination?) angle classes
ITOTP1 ITOT + 1
IYEAR I/O Year
JMAX I/O Maximum number of canopy layers (pres. 19)
JMIN I/O Minimum number of canopy layers (pres. 2)
JPNT I Code numbers for output format (see key)
JTOT O Number of canopy layers
KMAX I Maximum number of wavelengths.
KMPDAY O Daily windrun (kmday-1)
KPNT I Code number for output of vertical profiles
(see key)
KSTRT Index indicating if IHR before or after sunrise/sunset:
(=3 for nighttime and =1 for daytime).
LDAYIN I Julian Day number of daily values to follow
LPNT I Code number for output of vertical profiles
(see key)
LYPDAY O Daily total solar radiation (Langleys/day)
MDAY(LL) I Day number associated with MDAYIN, where MDAY=1
signifies the first day of the simulation.
MDAYIN I Number of days that profile output (or previous
line of input file) are printed. (MDAYIN=1 ->
output profile for all days)
MH Related to hours?
MMH20 O Total water stored in root zone (mm)
MONTH O Month
NALPHA I Number of leaf angle classes input in
GR(ALPHA)
NBETA I No. of azimuth angle classes (50)
NDSOIL I/O Number of depths in the soil
(number of soil layers)
NIR I O NIR reflectance factors for calculation of
bidirectional fluxes
NLABCY I Number of layers above the canopy
NLBCPY I Number of layers below the canopy.
NN2PNT I Number of hours during the day when detailed
profile output is printed if ISPECL=1.
NOAZMV I Number of azimuth angles of view for BRDF.
NODAY O Number of days of data input
NODAYS I Number of days for the simulation
NODYIN I Number of days for which daily input values
are listed
NOHRS O Number of hours of data per day
NOTEMP O Variable to override the temperature
dependence of photosynthesis
(=0, normal temperature dependence)
(=1, temperature = TFIX)
NOZENV I Number of zenith angles of view for BRDF.
NXINTZ Dimension of XINTZ (90)
PA Stomatal resistance water potential
PARD O Daily accumulated PAR (MJm-2d-1)
PARI O Intercepted PAR by the canopy (Wm-2)
PARID O Daily intercepted PAR (Wm-2)
PATH O path*h = path length of sunbeam through canopy
PE O ???
PEVMIC O Precipitation interception evaporation (microns)
PEVMMH O Interception evaporation in mm/hr
PHIMA O Diabatic profile factor for momentum above the
canopy
PHIMS O Diabatic profile factor for momentum above the
surface
PILAST(20) Value of PINT on last iteration.
PINT(20) O Precipitation intercepted by the canopy layer
PINT1
PINTMX I/O Maximum layer of water (mm) that can be held
on a wet leaf in a uniform film
PLSPC I/O Plant spacing (m)
PLTPM2 I Number of plants per square meter
PN(MH,50) Soil layer water potential
POTBM1 Potential direct beam visible radiation at the earth's
surface.
POTDIF Potential diffuse visible radiation at the earth's surface.
POTVIS Potential total visible radiation at the earth's surface.
PRAREA O Percent of leaf area in angle class I and
layer J
PRECIP(MH) O Precipitation (mm) for hourly increment
PRECPD O Daily accumulated precipitation (mm)
PREEVD O Daily intercepted precipitation evaporated
(mm)
PREEV O Intercepted precipitation that evaporated
this time step (mm)
PREINT O Precipitation intercepted by canopy (mm)
PROOT O Hydraulic plant root resistance (m4kg-1s-1)
PS1 O Net photosynthetic rate of a leaf in layer I
and angle class I (1E-6 mol CO2 m-2 s-1)
PSCPYL O Photosynthetic rate of canopy on leaf area
basis (umol CO2 m-2 s-1)
PSCPYG O Photosynthetic rate of canopy on ground area
basis (umol CO2 m-2s-1)
PSI1 I/O Leaf water potential where stomata
begin to close (bars)
PSI2 I/O Leaf water potential where stomata
completely closed (bars)
PSILF O Leaf water potential (bars)
PSIMA O Diabatic wind profile correction factor above the canopy
PSIMS O Diabatic wind profile correction factor above the soil
PSISUM O Root length weighted soil water potential
(bars)
PSITOP O Leaf water potential (bars) (at the top of the
canopy???)
PSITP1 PSITOP from previous iteration.
PSIXY O Root xylem water potential (bars)
PSLAY O Photosynthetic rate in each layer
(1E-6 mol CO2 m-2 s-1)
PSLEAF O Leaf photosynthetic rate for angle class I
and layer J (1E-6 mol m-2s-1)
PSMRM O Photosyntheis minus maintenance respiration
PSMRMD O Same as PSMRM except it is a daily average.
PSYNGD O Canopy photosynthetic rate based on ground
area averaged over a day.
PWP O Permanent wilting percentage at -15 bars
(% by volume)
Q(50) Sensible heat flux into canopy layers ???
QCOND O Sensible heat flux by soil and canopy
layer (Wm-2)
QFIX I Polynomial coefficients for sensible heat flux
for layers below the sprinkler height.
QHRWET O Daily cumulative hours of leaf wetness
QITER2 O Iterations over canopy temperature and V.P.
profiles to get convergence in main program
QITER3 O Iterations over soil evap.to merge soil water
flow eq. & canopy vapor eq. in PROFL2 subr.
QITERW O Iterations to match soil sfc W.C. with V.P.
at the soil surface through log relationship
QITERH O Iterations over water stress in canopy
QITOT O Number of leaf angle classes
QJMAX O ???
QJMIN O ???
QJZBOT O Value of the index number of JZ of the lower
soil boundary condition
QJZCPY O Value of the index number of JZ of the
lowest layer containing leaves
QJZCRT O Critical layer in canopy where influence
of the soil is significant on the wind
speed profile in the canopy
QJZFSC O Value of the index number of JZ of the node
immediately above the soil surface
QLAIUP O ???
QLOOPE O Iterations over canopy water vapor flow
equations alone in Newton-Raphson
QLOOPT O Iterations over soil heat flow equations
alone in Newton-Raphson
QLOOPW O Iterations over soil water flow equations
by Newton-Raphson in PROFL2
QNODAY O ???
QNOITR O Number of iterations in leaf energy budget
QRTZFC I Quartz fraction in fractions of total weight
QSUM I Polynomial coefficients for sensible heat flux
summed over all layers above the sprinkler height.
QTOT O Total droplet sensible heat exchange above
canopy (+ droplet cooling) (Wm-2)
QWETAM O Hours of leaf wetness between midnight and
noon
QWETPM O Hours of leaf wetness between noon and
midnight
RADSOL
RADABV(1,IHR) Ratio of the actual total visible radiation over
the potential total visible radiation.
RADABV(2,IHR) Ratio of the actual total NIR radiation over the
potential total NIR radiation.
RADN I Light response characteristics of stomata ?????
I THINK THIS MAY BE NET RADIATION.
RADTOP(3,MH) I Radiation onto a horizontal plane above the canopy
1st index = wavelength: VIS, NIR, Thermal
2nd index = hour.
RADTP1 O Visible radiation above canopy on horizontal
(Wm-2)
RADTP2 O Near infrared radiation above the canopy on
a horizontal plane (Wm-2)
RADTP3 O Thermal radiation above the canopy on a
horizontal plane (Wm-2)
RASTOM I/O Ratio of stomatal resistance on top to
bottom of leaf
RATIO O Ratio of actual total NIR radiation over the potential
total visible and NIR radiation.
RATIOD I Ratio of actual/potential solar radiation
during the day
RATION I Ratio of actual/potential solar radiation
at night
RCUT20 I Light response characteristics of stomata
RDCPY O Dark respiration of canopy.
RDLAY O Coefficient to adjust dark respiration for
light history
RDRK O dark respiration (umol CO2 m-2 s-1)
REFDPT I/O Reference depth
REFHTT O Reference height for temperature (m)
REFHTW I/O Reference height for wind (= temp and vp)
RELHUM O Relative humidity of the atmosphere
RGTOT O Growth respiration of total.
RHCPY O Canopy resistance to heat flow
(sm-1)
RHEAT O Aerodynamic resistance to heat and water
flow from diabatic wind profile equation
RESROT(50) Root resistance to water uptake?
RHLEAF O Boundary layer resistance of leaves in
a layer (s/m)
RHMAX O Daily maximum relative humidity at the
reference height
RHMIN O Daily minimum relative humidity at the
reference height
RHOCPY
RHSLOP I Value to match soil water flow equations
with canopy vapor flow equations
RLAY1 O Reflectance of diffuse VIS radiation from
a canopy layer
RLAY2 O Reflectance of diffuse NIR radiation from
a canopy layer
RLAY3 O Reflectance of diffuse THERM. radiation
from a canopy layer
RLAYR(K) Reflectance factor for diffuse radiation of a layer.
Subscripted by K for wavelength band.
RLEAF1 I/O Leaf reflectance, visible radiation
RLEAF2 I/O Leaf reflectance, near infrared
RLEAF3 I/O Leaf reflectance, thermal
RLFDIF
RLFDIR Calculated in DSTLIT (?) Weighted mean sunlit leaf
reflectance. Perhaps this is for direct light, and
above is for diffuse light.
RLFHEM Leaf hemispherical reflectance
RMGR O Maintenance respiration of grain.
(micromole m-2 ground area s-1)
RMGRD O Same as RMGR except for a daily total.
RMLEAF O Maintenance respiration of leaf.
(micromole m-2 ground area s-1)
RMLFD O Same as RMLEAF except for a daily total.
RMROOT O Maintenance respiration of root.
(micromole m-2 ground area s-1)
RMROTD O Same as RMROOT except for a daily total.
RMSTEM O Maintenance respiration of stem.
(micromole m-2 ground area s-1)
RMSTMD O Same as RMSTEM except for a daily total.
RMTOT O Maintenance respiration of total plant.
(micromole m-2 ground area s-1)
RMTOTD O Same as RMTOT except for a daily total.
RN1 O Net VIS radiation flux above a layer
(D1-U1)(Wm-2)
RN2 O Predicted net daily radiation for Nebraska
modified Penman equation
RN2 O Net NIR radiation flux above a layer
(D1-U1)(Wm-2)
RN3 O Net THERM radiation flux above a layer
(D1-U1)(Wm-2)
RNCPYD O Daily mean net radiation above canopy
(Wm-2) (+ for radiation input)
RNCPY O Net radiation above canopy (Wm-2)
RNDIV O Net radiation divergence in layer (Wm-2)
RNET1 O Net all-wavelength flux above a layer
(Wm-2)
RNET2 O Net all-wavelength flux above a layer
(Wm-2)
RNET3 O Net all-wavelength flux above a layer
(Wm-2)
RNETMM O Daily net radiation equivalent (mmday-1)
RNDIV(j): Net total radiation flux density of all wavelengths
lost in layer j.
RNLAM(k,j) Net radiation flux density into layer j of wavelength k
diffuse and direct beam. (+) downward.
RNSOIL O Net radiation above soil (Wm-2)
RNSOLD O Daily mean net radiation above soil
(Wm-2)
ROOTSM Sum of reciprocals of root resistances
ROOTUP(50) Water flow into root
ROWSPC I/O Row spacing (m)
RROOT I Hydraulic root resistance (3.E6 m4kg-1s-1)
RSAVE O Average stomatal resistance of a layer of
leaves (sm-1)
RSCPY O Effective canopy stomatal resistance
(sm-1)
RSEXP I Temp. response characteristics of stomata
RSFAC Factor to adjust leaf boundary layer resistance
for stomatal conductance or resistance ratio
RSLAY O Stomatal resistance (s/m)
RSLEAF O Leaf stomatal resistance in leaf angle
class i and layer j (sm-1).
RSM I Temp. response characteristics of stomata
RSMIN I Light response characteristics of stomata
RSNOVP O Stomatal resistance with no direct vapor
pressure deficit effect (sm-1).
RSOIL I/O Soil Reflectance: (1): visible,
(2): near infrared, (3): thermal
RSUBL Reflectance factor for diffuse radiation of a sublayer.
Subscripted by K for wavelength band.
RSTOT O Canopy resistance to water vapor flow
calculated from CUPID. Set=0 if precipitation
is more than 0.5 mm
RVCPY O Canopy resistance to water vapor
(sm-1)
RXCHAM I/O Boundary layer resitance of one leaf side in
chamber for measuring P.S. (s/m)
SANDFC I Sand fraction
SCOND[ITOTPL,JMAX] Stomatal conductivity for water vapor?
SDN(j): Fraction of downward diffuse radiation in total
radiation above the canopy that originated in that
layer from direct beam interception.
SDNSUB Fraction of intercepted direct beam that is scattered
downward in one sublayer.
SENS O Canopy sensible heat flux by Penman-Monteith
equations using soil heat flux from CUPID
SENS2 O Canopy sensible heat by Penman-Monteith eq.
neglecting soil heat flux
SILTFC I Silt fraction
SIZELF O Maximum length of leaf (m)
SOLARD O Daily accumulated solar radiation (MJm-2d-1)
SOLAR O Incident solar radiation on a horizontal
plane above the canopy (Wm-2)
SOLRID O Daily intercepted solar radiation (Wm-2)
SOLRI O Intercepted solar radiation by canopy (Wm-2)
SOURDN(K,IHR) Source term for downward diffuse radiation for the
wavelength band K and IHR for one layer.
SOURUP(K,IHR) Source term for upward diffuse radiation for the
wavelength band K and IHR for one layer.
SPKPRS I/O Sprinkler pressure (kPa)
STDLNG I/O Standard longitude (90 deg. central time zone)
STEM O Stem flow of intercepted precipitation (mm)
STRT O Sunrise (hours.tenths)
SUNAZM O Solar azimuth (0 degrees = south)
SUNLIT LAI of a layer that is sunlit.
SUP(j): Fraction of upward diffuse radiation in total radiation
above the canopy that originated in that layer from
direct beam interception.
SUPSUB Fraction of intercepted direct beam that is reflected
upward in one sublayer.
SWDAY O Daily mean soil water storage from
the previous day (mm)
T1 O Average vegetation kinetic temperature
T2(THETV,PHIV) O Average directional kinetic temperature at view
zenith angle THETV, view az angle PHIV
T4 O Hemispherical infrared temperature
T5(THETV,PHIV) O Apparent directional infrared temperature at view
zenith angle THETV, view az angle PHIV
TAEROH O Canopy aerodynamic temperature using
Z for heat (C).
h
TAEROM O Canopy aerodynamic temperature using the zero-plane
displacement height for momentum (C).
TAIR O Air temperature in the canopy (C)
TAIRD O Daily mean air temperature at reference
height (C)
TAIRMX O Maximum temperature of air at reference
height for day (C)
TAIRMN O Minimum temperature of air at reference
height for day (C)
TBEAM(j) O Fraction of direct beam in direct beam above the canopy
passing through layer j. It is decremented in each
layer due to physical interception by the leaves in
that layer - it has nothing to do with the radiative
properties of the leaves themselves.
TCPY O Average canopy temperature (C)
TCPYD O Daily mean canopy temperature (C)
TCROP O Crop temperature from P.-M. equations
TDROPI I Initial droplet temperature at sprinkler (C)
TEMAIR I/O Air temperature (C)
TEMPLF(i,j) O Leaf temperature in angle class i and layer j.
TEMPLF(ITOTP1,j) Average leaf temperature over all angle classes
in layer j.
TEMSOL O Soil temperature at the lower boundary (C)
TFIX O Fixed temperature of photosynthesis if the
temperature dependence is overriden by NOTEMP.
THALFL O Coefficient in temperature dependence of
electron transfer in photosynthesis.
THALFH O Same as THALF.
TIMLOC I/O Local time (hours.tenth)
TIMSUN O Solar time (hours.tenths)
TIR # O Apparent temperature of canopy (IR-thermom.)
at # deg. view angle from zenith.
TIRETQ
TIRRIG I/O Average temperature of water droplets when they
reach the top of the canopy (C).
TLAY1 O Transmittance of diffuse VIS radiation for
a canopy layer
TLAY2 O Transmittance of diffuse NIR radiation for
a canopy layer
TLAY3 O Transmittance of diffuse THERM. radiation
for a canopy layer
TLAYR(K) Transmittance factors for diffuse radiation of a layer.
Subscripted by K for wavelength band.
TLEAF1 I/O Leaf transmittance, visible
TLEAF2 I/O Leaf transmittance, near infrared
TLEAF3 I/O Leaf transmittance, thermal
TLFAVE O Average leaf temperature in canopy (C)
TLFDIF
TLFDIR Calculated in DSTLIT (?) Weighted mean sunlit leaf
transmittance. Perhaps this is for direct light,
and above is for diffuse light.
TLFHEM Leaf hemispherical transmittance
TOTLAI O Total leaf area index
TLAI(IDAY) Total leaf area index at day IDAY
TN(MH,50) Temperature profile through all layers
TPRECP O Precip. transmitted through the canopy
TRAN(10,20) O Transpiration of a canopy layer and angle class
TRMIC O Canopy transpiration (1E-6 m)
TRMMD O Daily total transpiration (mm)
TRMMH O Canopy transpiration in mm/hr
TROOTM O Root-weighted mean temperature of soil (C).
TRSMAX I Temp. response characteristics of stomata
TRSMIN I Temp. response characteristics of stomata
TRSOPT I Temp. response characteristics of stomata
TSBC(IDAY) Soil temperature at soil boundary condition
at day IDAY
TSFC Soil surface temperature.
TSFCSD O Daily mean soil surface temperature (C)
TSFCSO O Soil surface temperature (C)
TSN(50) Temperature of soil layer ???
TSOL24 O Soil temperature profiles at midnight
TSOLBC I Soil temperature at soil boundary cond. at day
LDAYIN
TSUBL Transmittance factors for diffuse radiation of a sublayer.
Subscripted by K for wavelength band.
TWB1
U
U(K,J) O Upward diffuse radiation above sublayer J divided by
the total radiation above the canopy, subscript
wavelength band K.
USTARA O Friction velocity above the canopy (m/s)
USTARS O Friction velocity above the soil surface
USTR O Friction velocity used in P.-M. eq. for
calculation of aerodynamic resistance
to heat and water flow
VIEWAZ I/O View azimuth angle
VIEWZN I View zenith angle
VIS I O Visible radiation reflectance factors for
calculation of bidirectional fluxes.
VM O Maximum velocity of carboxylation.
VPAIR(MH) O Air vapor pressure at reference height above the canopy
VPAIRD O Daily mean air vapor pressure at reference
height (mb)
VPD O Vapor pressure deficit (mb)
VPDIN O Water vapor pressure deficit at upper boundary (mb)
WATER I Initial water content profile
WATSOL O Soil water content at the lower boundary
(volume fraction)
WCPYSD O Daily mean soil surface evaporation (Wm-2)
WCPYS O Soil surface evaporation calculated from
soil water flux equations (Wm-2)
WIND I/O Wind speed (m/s)
WINDDY O Daily mean wind speed at reference height
(m/s)
WS O Saturation water content (% by volume)
WSBC(IDAY) Volumetric water content at soil boundary condition
at day IDAY
WSMM O Soil surface evaporation (mm)
WSMMD O Daily mean soil surface evaporation (mm/day)
WSOL24 O Soil volumetric water content at midnight
WSOLBC I Volumetric water content at soil boundary cond.
at day LDAYIN
WT(MH,50) Volumetric water content of soil layer
WT3BAR O 3-bar water content (% by volume)
WTI(50) Water content of soil layers
WTIR(J,IANGLE) Weighting factor for thermal IR interception by
each canopy layer.
WTP(20) Weighting factor for canopy layer precip. intercept
WTSFC O Volumetric water content of top soil layer
XAROT I Rooting depth coefficient at day LDAYIN
XFRVL I Fraction of green vegetation at day LDAYIN
XHT I Height of canopy at day LDAYIN
XINT(ihr) Weighting factor for canopy radiation interception
calculations. It involves the sun->leaf-normal
angle.
XINTV(THETV,PHIV) Extinc. coef. at different viewing angles
XINTZ(NXINTZ) extin. coef. at different zenith averaged over azimuth
XLAT I/O Latitude
XLONG I/O Longitude
XMEU I One parameter of the beta distribution for the
leaf inclination angle distribution.
imunu=1: value of meu
imunu=2: mean angle of leaf angle dist(0=hor leaves)
XMEUAZ I One parameter of the beta distribution for the
leaf azimuthal angle distribution.
XNEU I Second parameter of the beta distribution for the
leaf inclination angle distribution.
imunu=1: value of neu
imunu=2: std. dev. of leaf angle dist.
Canopy Type meu neu (See Subroutine LAD)
planophile 2.770 1.172
erectophile 1.172 2.770
plagiophile 3.326 3.326
extremophile 0.433 0.433
uniform 1.000 1.000
spherical 1.101 1.930
XNEUAZ I Second parameter of the beta distribution for the
leaf azimuthal angle distribution.
XTLAI I Total leaf area index at day LDAYIN
XZLDH I Relative height of the lowest green leaf at
day LDAYIN
XZMDH I Relative height of the maximum leaf area density
at day LDAYIN
Z0 O Roughness length of canopy (m)
Z0DH I Z0/H
ZABCPY I Height of layers above canopy. Top one = upper
boundary condition.(m)
ZBCPY I Height of layers below the canopy (m)
ZCRIT O Height of the layer JZCRIT (m)
ZDH O Height of top of layer divided by the
canopy height
ZDHCR I =0.2, critical layer height/canopy height
ZDL2 O Height divided by Monin-Obukov length used
for diabatic profile corrections in P.-M. calc.
ZDLA O Height divided by Monin-Obukov length above
the canopy
ZDLS O Height divided by Monin-Obukov length above
the soil
ZENANG O Solar zenith angle (degree)
ZLDH O Fraction of canopy height below which there
are no leaves
ZLDH1(IDAY) Relative height of the lowest green leaf at
day IDAY
ZMAX I Maximum height of droplet trajectory (m)
ZMDH O Fraction of canopy height with maximum leaf
density
ZMDH1(IDAY) Relative height of the highest green leaf at
day IDAY
ZMID O Height of midpoint of each layer (m)
ZNON O Non-rectangular hyperbola coefficient
ZSOIL I Depth of nodes in soil in meters (ZOSOIL in output)
FACTIR is the factor that the thermal sky flux, as calulated in the subroutine skyir, is multiplied by to get the sky thermal flux in the band of interest. It is used in the subroutine bdrtm as such:
d(kt,jtot)=radabv(3)*factir
Here are some values it can take:
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