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dcinterface.f90
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MODULE module_daycent_cwrf_interface
! Test merging from main branch
! This module
! - defines input type (dcInputs)
! - defines output type (dcOutputs)
! - contains subroutine daycent_driver
! - contains subroutine daycent_init
! + subroutine daycent_init requires the following files for
! initialization (in the future some of these files may be with
! information coming directly from CWRF):
! - spin.bin: binary file that is used to initialize all state variables.
! This binary file is generated by a spinup simulation for each grid cell.
! - test.sch: scheduling information
! - fix.100: "fixed" parameters that are usually consistent for each site.
! - crop.100: crop parameters
! - tree.100: tree parameters
! - other *.100 files: required to implement management options in the schedule file.
! - site.100: weather statitics and site-specific information
! - sitepar.in: more site-specific information
! - soils.in: soil properties and soil layer structure
integer :: CWRFLYRS
parameter (CWRFLYRS = 11)
type dcInputs
integer :: &
curday, &! day of year (1..366)
month, &! month (1..12)
year ! year
double precision :: &
Ndep, &! N deposition (wet + dry) (gN/m2/day)
tmin, &! minimum temperature for the day (C)
tmax, &! maximum temperature for the day (C)
tmean, &! mean temperature for the day, derived from hourly temperatures (C)
ppt, &! total precipitation for the day (cm)
sradKJ, &! incoming solar radiation (KJ/m2/day)
parKJ, &! photosynthetically active radiation (KJ/m2/day) (Need Einsteins/m2/day)
rhumid, &! relative humidity (%)
windsp, &! wind speed (mph)
uvb, &! UV-b radiation (units?)
vpd, &! vapor pressure deficit (kPa)
snow, &! snow cover (cm SWE)
ambientCO2ppm ! ambient atmospheric CO2 concentration (ppm)
end type dcInputs
type dcOutputs
! ATTENTION: Need to add P variables eventually.
! Added somtc, srfcomtc, Ra, and GPP (-mdh 1/10/2022).
double precision :: &
aglivc, &! live crop above-ground biomass (gC/m2)
bglivc, &! live crop juvenile + mature fine root biomass (gC/m2)
stdedc, &! dead crop standing above-ground biomass (gC/m2)
rleavc, &! live tree leaf biomass (gC/m2)
frootc, &! live tree fine root biomass (gC/m2)
fbrchc, &! live tree fine branch biomass (gC/m2)
rlwodc, &! live tree large wood biomass (gC/m2)
crootc, &! live tree coarse root biomass (gC/m2)
somsc, &! total soil (below ground) organic matter C (excluding litter C) (gC/m2)
somtc, &! total soil (below ground) organic matter C (including litter C) (gC/m2)
srfcomtc, &! total surface (above ground) organic matter C (including litter C) (gC/m2)
totsysc, &! total system C (gC/m2)
nitrate(CWRFLYRS), &! soil nitrate by layer (indicator of fertility)(gNO3-N/m2)
ammonium, &! soil ammonium pool (indicator of fertility) (gNH4-N/m2)
somseN, &! total soil organic matter N (indicator of fertility) (gN/m2)
Nuptake, &! net N uptake for crops and trees (gN/m2/day)
cropANPP, &! above-ground net carbon uptake for crops (gC/m2/day)
cropBNPP, &! below-ground net carbon uptake for crops (gC/m2/day)
treeANPP, &! above-ground net carbon uptake for trees (gC/m2/day)
treeBNPP, &! below-ground net carbon uptake for trees (gC/m2/day)
cgrain, &! amount of crop grain C harvest (gC/m2/day)
crmvst, &! amount of crop stover/straw C harvest (gC/m2/day)
egrainN, &! amount of crop grain N harvest (gN/m2/day)
ermvstN, &! amount of crop stover/straw N harvest (gN/m2/day)
ctubes, &! amount of below ground root harvest (gC/m2/day)
N2Oflux, &! N2O emissions from nitrification and denitrification (gN2O-N/m2/day)
NOflux, &! NOx emissions from nitrification and denitrification (gNO-N/m2/day)
CH4oxid, &! CH4 oxidation (g CH4-C/m2/day)
CH4prod, &! CH4 production (g CH4-C/m2/day)
GPP, &! gross primary production a.k.a. gross canopy photosynthesis (gC/m2/day)
Ra, &! autotrophic respiration (gC/m2/day)
Rh, &! heterotrophic respiration (gC/m2/day)
cropLAI, &! LAI of live shoot biomass (calculated from aglivc) (m2/m2)
treeLAI, &! LAI of live tree leaf biomass (calculated from rleavc) (m2/m2)
canopyHeight, &! canopy height (m)
dswc(CWRFLYRS), &! change in soil water content by layer from previous day (+ is gain) (cm)
dsnow, &! change in SWE from previous day (+ is net accumulation) (cm)
dtotsysC, &! change in total system C from previous day (+ is gain)(gC/m2)
dsomC, &! change in soil organic matter C from previous day (+ is gain)(gC/m2)
outflow, &! runoff + baseflow (cm/day)
intercpt, &! amount of water intercepted by litter and vegetation, assumed to evaporate (cm/day)
evapdly, &! evaporation from H2O from soil (cm/day)
trandly, &! transpiration (cm/day)
sublim, &! sublimation (cm/day)
volpl, &! volatilization of N from plants (for indirect N2O) (gN/m2/day)
leachNO3N, &! amount of NO3-N leached into stream (for indirect N2O) (gN/m2/day)
rootdens(CWRFLYRS) ! frac. of roots in each soil layer (0.0-1.0)
end type dcOutputs
CONTAINS
!--------------------------------------------------------------------------------
SUBROUTINE daycent_init(luindex,fracGridCell,dcinput,dcgridpt,scellID)
USE module_daycent_globalVars
implicit none
integer, INTENT(IN) :: luindex ! CWRF land use index
character(len=6), INTENT(IN) :: scellID ! Cell ID
real(8), INTENT(IN) :: fracGridCell ! fraction of grid cell represented by this point
type (dcInputs), INTENT(IN) :: dcinput
type (gridCell), INTENT(INOUT) :: dcgridpt
!Local Variables
integer :: doinit, endOfDay
doinit = 1
endOfDay = 1 !Trigger common blocks to be saved to global data structure
write(*,*) '----------------------------------------------------------------------------'
write(*,110) 'INITIALIZE: LUindex=', luindex, ' cellID=', scellID, &
' curday=', dcinput%curday, ' year=', dcinput%year
110 format(a21,i2, a10,a6, a10,i3, a8,i4)
dcgridpt%scellID = scellID
dcgridpt%luindex = luindex
dcgridpt%fracGridCell = fracGridCell
call getsetglobvars(dcinput,dcgridpt,doinit,endOfDay)
!Reinitialize these variables after spinup
dcgridpt%plt1%cgrain = 0.0
dcgridpt%plt1%crmvst = 0.0
dcgridpt%plt1%egrain(:) = 0.0
dcgridpt%plt1%ermvst(:) = 0.0
END SUBROUTINE daycent_init
!--------------------------------------------------------------------------------
SUBROUTINE daycent_driver(dcinput,dcgridpt,dcoutput)
USE module_daycent_globalVars
implicit none
! Subroutine arguments
! doinit = do model initialization from spinup run
type (dcInputs), INTENT(IN) :: dcinput
type (gridCell), INTENT(INOUT) :: dcgridpt
type (dcOutputs), INTENT(OUT) :: dcoutput
!Local Variables
! endOfDay: 0=copy global vars into common block vars at the beginning of the day
! 1=copy common block vars into global vars at the end of the day
integer endOfDay, doinit
write(*,*) '---------------------------------------------------'
write(*,111) 'cellID=', dcgridpt%scellID, ' curday=', dcinput%curday, ' month=', dcinput%month, ' year=', dcinput%year
111 format(a7,a6, a8,i3, a7,i2, a6,i4)
!Copy values from global data structure into common block variables
doinit = 0
endOfDay = 0
call getsetglobvars(dcinput,dcgridpt,doinit,endOfDay)
call daycent_eachday(dcinput%curday,dcinput%Ndep)
!Save common block values to global data structure
doinit = 0
endOfDay = 1
call getsetglobvars(dcinput,dcgridpt,doinit,endOfDay)
!Assign values to dcoutput variables to send back to CWRF
call assignoutputvars(dcgridpt,dcoutput)
return
END SUBROUTINE daycent_driver
END MODULE module_daycent_cwrf_interface