subroutine initrc(mnth) use mod_xc ! HYCOM communication interface use mod_pipe ! HYCOM debugging interface #if defined (NOR05) use mod_necessary_ecovars, only: bio, sedflg, init, ipho, isil use m_NOR05_initialize_ecosys use m_NOR05_initialize_sed use m_NOR05_riverloads #endif /* NOR05 */ #if defined (ECOSM) use mod_necessary_ecovars, only: bio, sedflg, init, ipho, isil use m_ECOSM_initialize_ecosys use m_ECOSM_initialize_sed use m_ECOSM_riverloads #if defined (ECO2) use m_ECOSM_initialize_carb #endif #endif /* ECOSM */ implicit none include 'common_blocks.h' #if defined (ECO2) include 'nersc/ECOSMO/carbvar.h' #endif c integer mnth,iibio c c --- -------------------------- c --- initializatize all tracers c --- -------------------------- c logical lpipe_initrc parameter (lpipe_initrc=.false.) c character ptxt*12,cformat*99 integer i,ibio,nbio,j,k,ktr,l real bio_n,bio_p,zk,r real pwij(kk+1),trwij(kk,ntracr), & prij(kk+1),trcij(kk,ntracr) c if (ntracr.eq.0) then return ! no tracer endif c c --- expand trcflg to allow for number of biology fields. c #if defined (NOR05) #if defined (ZOOPL) nbio = 11 #elif defined (DETPHO) nbio = 9 #else nbio = 8 #endif /* DETPHO-ZOOPL */ #elif defined (ECOSM) nbio=17 ! number of biochemical compartments #if defined (ECO2) nbio=nbio+2 ! number of biochemical compartments #if defined (ECOCCO) nbio=nbio+2 ! number of biochemical compartments #endif /* ECOCCO */ #endif /* ECO2 */ #else nbio = 0 #endif /* NOR05 */ ibio = 0 do ktr= 1,ntracr+1 if (ktr.ne.ntracr+1 .and. & trcflg(min(ktr,ntracr)).eq.9) then if (ibio.eq.0) then !start biology ibio = ktr endif elseif (ibio.ne.0) then !end biology nbio = ktr-ibio if (nbio.eq.3) then c --- Franks NPZ. trcflg(ibio) = 903 trcflg(ibio+1) = -903 trcflg(ibio+2) = -903 ibio = 0 elseif (nbio.eq.3) then c --- Two Franks NPZ. trcflg(ibio) = 903 trcflg(ibio+1) = -903 trcflg(ibio+2) = -903 trcflg(ibio+3) = 903 trcflg(ibio+4) = -903 trcflg(ibio+5) = -903 ibio = 0 elseif (nbio.eq.4) then c --- Lima/Idrisi NPZD. trcflg(ibio) = 904 trcflg(ibio+1) = -904 trcflg(ibio+2) = -904 trcflg(ibio+3) = -904 ibio = 0 elseif (nbio.eq.7) then c --- Lima/Idrisi NPZD and Franks NPZ. trcflg(ibio) = 904 trcflg(ibio+1) = -904 trcflg(ibio+2) = -904 trcflg(ibio+3) = -904 trcflg(ibio+4) = 903 trcflg(ibio+5) = -903 trcflg(ibio+6) = -903 ibio = 0 elseif (nbio.eq.88) then c --- Two Lima/Idrisi NPZD. trcflg(ibio) = 904 trcflg(ibio+1) = -904 trcflg(ibio+2) = -904 trcflg(ibio+3) = -904 trcflg(ibio+4) = 904 trcflg(ibio+5) = -904 trcflg(ibio+6) = -904 trcflg(ibio+7) = -904 ibio = 0 elseif (nbio.eq.99) then c --- Chai 9-component. * trcflg(ibio) = 909 * trcflg(ibio+1) = -909 * trcflg(ibio+2) = -909 * trcflg(ibio+3) = -909 * trcflg(ibio+4) = -909 * trcflg(ibio+5) = -909 * trcflg(ibio+6) = -909 * trcflg(ibio+7) = -909 * trcflg(ibio+8) = -909 * ibio = 0 c --- not yet implemented if (mnproc.eq.1) then write(lp,'(/ 3a /)') & 'error - trcflg=9 (standard biology) configured', & ' with 9 consecutive tracers, but Chai scheme is', & ' not yet implemented' call flush(lp) endif !1st tile call xcstop('(trcini)') stop '(trcini)' #if defined (ECOSM) #if defined (ECO2) elseif (nbio.eq.19) then #if defined (ECOCCO) elseif (nbio.eq.22) then #endif #else elseif (nbio.eq.17) then #endif /* ECOSM */ c --- ECOSMO 17-component. do iibio=0,nbio-1 trcflg(ibio+iibio) = 906 enddo ibio = 0 #endif /* ECOSM */ #if defined (NOR05) #if defined (ZOOPL) elseif (nbio.eq.11) then #elif defined (DETPHO) elseif (nbio.eq.9) then #else elseif (nbio.eq.8) then #endif /* DETPHO-ZOOPL */ c --- NORWECOM 10-component. trcflg(ibio) = 905 trcflg(ibio+1) = 905 trcflg(ibio+2) = 905 trcflg(ibio+3) = 905 trcflg(ibio+4) = 905 trcflg(ibio+5) = 905 trcflg(ibio+6) = 905 trcflg(ibio+7) = 905 #if defined (ZOOPL) trcflg(ibio+8) = 905 trcflg(ibio+9) = 905 trcflg(ibio+10) = 905 #elif defined (DETPHO) trcflg(ibio+8) = 905 #endif /* DETPHO-ZOOPL */ ibio = 0 #endif /* NOR05 */ else c --- unknown standard biology. if (mnproc.eq.1) then print*, 'NBIO', nbio write(lp,'(/ 2a,i3 /)') & 'error - trcflg=9 (standard biology) expects', & ' 3/4/6/7/8 consecutive tracers but have',nbio * & ' 3/4/6/7/8/9 consecutive tracers but have',nbio call flush(lp) endif !1st tile call xcstop('(trcini)') stop '(trcini)' endif endif enddo c if (mnproc.eq.1) then write(lp,*) do k= 1,ntracr write(lp,'(a,i3,i6)') 'initrc: k,trcflg =',k,trcflg(k) enddo write(lp,*) endif !1st tile c #if defined (NOR05) #if defined (ZOOPL) if (nbio.gt.0.and.nbio.lt.11) then #elif defined (DETPHO) if (nbio.gt.0.and.nbio.lt.9) then #else if (nbio.gt.0.and.nbio.lt.8) then #endif /* DETPHO-ZOOPL */ #elif defined (ECOSM) #if defined (ECO2) if (nbio.gt.0.and.nbio.lt.17+2) then #else if (nbio.gt.0.and.nbio.lt.17) then #endif /* ECO2 */ #else if (nbio.gt.0) then #endif /* NOR05 */ c c --- input bio-tracer parameters. c --- note that multiple sets of bio-tracers are allowed, c --- each is read from tracer.input in tracer order. c open(unit=uoff+99,file=trim(flnminp)//'tracer.input') do ktr= 1,ntracr if (trcflg(ktr).eq.903) then c --- NPZ call trcupd_903(1,2, -ktr) elseif (trcflg(ktr).eq.904) then c --- NPZD call trcupd_904(1,2, -ktr) * elseif (trcflg(ktr).eq.909) then * --- Chai 9-component. * call trcupd_909(1,2, -ktr) endif enddo close(unit=uoff+99) #if defined (NOR05) #if defined (ZOOPL) elseif (nbio==11) then #elif defined (DETPHO) elseif (nbio==9) then #else elseif (nbio==8) then #endif /* DETPHO */ #elif defined (ECOSM) #if defined (ECO2) elseif (nbio.eq.17+2) then #else elseif (nbio.eq.17) then #endif /* ECO2 */ #endif /* NOR05 */ endif c #if defined (ECOSM) #ifdef ECO2 c--------------------------------------------------- c read atmospheric CO2 field first c---------------------------------------------- call read_pco(pco2vec) if(mnproc.eq.1) print*,'co2a ',pco2vec #endif #endif c if (trcrin) then #if defined (NOR05) call NOR05_readnutrloads() #elif defined (ECOSM) call ECOSM_readnutrloads() #endif /* NOR05 */ return ! tracer from restart endif c margin = 0 c cAS if (iniflg.eq.3) then ! use climatology if (iniflg.eq.2) then ! use climatology #if defined (NOR05) #if defined (ZOOPL) if (nbio==11) then #elif defined (DETPHO) if (nbio==9) then #else if (nbio==8) then #endif /* DETPHO-ZOOPL */ call initialize_ecosys() call NOR05_initialize_sed() do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) do k=1,kk do ktr= 1,nbio tracer(i,j,k,1,ktr) = bio(i,j,k,1,ktr) tracer(i,j,k,2,ktr) = bio(i,j,k,2,ktr) end do end do end do end do end do if (mnproc==1) then print*, 'MAX NIT:', maxval(bio(:,:,1,1,init)), & maxloc(bio(:,:,1,1,init)) print*, 'MAX PHO:', maxval(bio(:,:,1,1,ipho)), & maxloc(bio(:,:,1,1,ipho)) print*, 'MAX SIL:', maxval(bio(:,:,1,1,isil)), & maxloc(bio(:,:,1,1,isil)) print*, 'MIN NIT:', minval(bio(:,:,1,1,init)), & minloc(bio(:,:,1,1,init)) print*, 'MIN PHO:', minval(bio(:,:,1,1,ipho)), & minloc(bio(:,:,1,1,ipho)) print*, 'MIN SIL:', minval(bio(:,:,1,1,isil)), & minloc(bio(:,:,1,1,isil)) end if else #endif /* NOR05 */ #if defined (ECOSM) #if defined (ECO2) && defined (ECOCCO) if (nbio.eq.17+5) then #elif defined (ECO2) if (nbio.eq.17+2) then #else if (nbio.eq.17) then #endif /* ECO2 */ call initialize_ecosys() call ECOSM_initialize_sed() do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) do k=1,kk do ktr= 1,nbio tracer(i,j,k,1,ktr) = bio(i,j,k,1,ktr) tracer(i,j,k,2,ktr) = bio(i,j,k,2,ktr) end do end do end do end do end do if (mnproc==1) then print*, 'MAX NIT:', maxval(bio(:,:,1,1,init)), & maxloc(bio(:,:,1,1,init)) print*, 'MAX PHO:', maxval(bio(:,:,1,1,ipho)), & maxloc(bio(:,:,1,1,ipho)) print*, 'MAX SIL:', maxval(bio(:,:,1,1,isil)), & maxloc(bio(:,:,1,1,isil)) print*, 'MIN NIT:', minval(bio(:,:,1,1,init)), & minloc(bio(:,:,1,1,init)) print*, 'MIN PHO:', minval(bio(:,:,1,1,ipho)), & minloc(bio(:,:,1,1,ipho)) print*, 'MIN SIL:', minval(bio(:,:,1,1,isil)), & minloc(bio(:,:,1,1,isil)) end if else #endif /* ECOSM */ call rdrlax(mnth,1) !$OMP PARALLEL DO PRIVATE(j,l,i,k,ktr,pwij,trwij,prij,trcij) !$OMP& SCHEDULE(STATIC,jblk) do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) prij(1)=0.0 do k=1,kk prij(k+1)=prij(k)+dp(i,j,k,1) pwij(k) =pwall(i,j,k,1) do ktr= 1,ntracr trwij(k,ktr)=trwall(i,j,k,1,ktr) enddo !ktr enddo !k pwij(kk+1)=prij(kk+1) * call plctrc(trwij,pwij,kk,ntracr, * & trcij,prij,kk ) call plmtrc(trwij,pwij,kk,ntracr, & trcij,prij,kk ) do k=1,kk do ktr= 1,ntracr tracer(i,j,k,1,ktr)=trcij(k,ktr) tracer(i,j,k,2,ktr)=trcij(k,ktr) enddo !ktr enddo !k enddo !i enddo !l enddo !j !$OMP END PARALLEL DO #if defined (NOR05) endif #endif /* NOR05 */ #if defined (ECOSM) endif #endif /* ECOSM */ else ! analytic inititalization !$OMP PARALLEL DO PRIVATE(j,l,i,k,ktr) !$OMP& SCHEDULE(STATIC,jblk) do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) p(i,j,1)=0.0 do k=1,kk p(i,j,k+1)=p(i,j,k)+dp(i,j,k,1) do ktr= 1,ntracr if (trcflg(ktr).eq.0) then !100% in the mixed layer if (p(i,j,k).le.dpmixl(i,j,1)) then tracer(i,j,k,1,ktr)=10.0 tracer(i,j,k,2,ktr)=10.0 else tracer(i,j,k,1,ktr)=0.0 tracer(i,j,k,2,ktr)=0.0 endif elseif (trcflg(ktr).eq.1) then !20 below euphotic zone if (p(i,j,k)*betabl(jerlv0).lt.4.0) then tracer(i,j,k,1,ktr)=0.0 tracer(i,j,k,2,ktr)=0.0 else tracer(i,j,k,1,ktr)=20.0 ! mg/m^3 tracer(i,j,k,2,ktr)=20.0 ! mg/m^3 endif elseif (trcflg(ktr).eq.2) then !temperature tracer(i,j,k,1,ktr)=temp(i,j,k,1) tracer(i,j,k,2,ktr)=temp(i,j,k,1) elseif (trcflg(ktr).eq.3) then !fully passive tracer(i,j,k,1,ktr)=0.0 !should never get here tracer(i,j,k,2,ktr)=0.0 !should never get here elseif (trcflg(ktr).eq.904 .or. & trcflg(ktr).eq.903 ) then !NPZD or NPZ zk = 0.5*(p(i,j,k+1)+p(i,j,k))*qonem if (zk.le.300.0) then ! 0.1 at 300m, 1.0 at 100m, 2.025 at 0m bio_p = 0.1 + (300.0-zk)**2 * (0.9/200.0**2) elseif (zk.le.900.0) then ! 0.1 at 300m, 0.0 at 900m bio_p = (900.0-zk) * 0.1/600.0 else bio_p = 0.0 endif if (temp(i,j,k,1).lt. 6.0) then bio_n = 37.0 elseif (temp(i,j,k,1).gt.27.0) then bio_n = 0.0 else * bio_n = (27.0-temp(i,j,k,1)) * 37.0/21.0 bio_n = 39.3116-1.335*temp(i,j,k,1) endif tracer(i,j,k,1,ktr )=bio_n !N tracer(i,j,k,2,ktr )=bio_n tracer(i,j,k,1,ktr+1)=bio_p !P tracer(i,j,k,2,ktr+1)=bio_p tracer(i,j,k,1,ktr+2)=bio_p !Z=P tracer(i,j,k,2,ktr+2)=bio_p if (trcflg(ktr).eq.904) then tracer(i,j,k,1,ktr+3)=bio_p + 1.0 !D=P+1 tracer(i,j,k,2,ktr+3)=bio_p + 1.0 endif endif !trcflg enddo !ktr enddo !k enddo !i enddo !l enddo !j !$OMP END PARALLEL DO endif !iniflg.eq.2:else c if (lpipe .and. lpipe_initrc) then do ktr= 1,ntracr do k= 1,kk write (ptxt,'(a4,i2.2,a3,i3)') 'trc.',ktr,' k=',k call pipe_compare_sym1(tracer(1-nbdy,1-nbdy,k,1,ktr), & ip,ptxt) enddo !k enddo !ktr endif !lpipe.and.lpipe_initrc c if (itest.gt.0 .and. jtest.gt.0) then write(cformat,'(a,i2,a,i2,a)') & '(i9,2i5,a,',ntracr, & 'a / (23x,i3,2f8.2,', ntracr,'f8.4))' write (lp,cformat) & nstep,i0+itest,j0+jtest, & ' istate: thkns dpth', & (' tracer',ktr=1,ntracr), & (k, & dp(itest,jtest,k,1)*qonem, & (p(itest,jtest,k+1)+p(itest,jtest,k))*0.5*qonem, & (tracer(itest,jtest,k,1,ktr),ktr=1,ntracr), & k=1,kk) write(lp,'(23x,a,8x,f8.2)') 'bot',depths(itest,jtest) endif !test tile call xcsync(flush_lp) c return end subroutine trcupd(m,n) use mod_xc ! HYCOM communication interface #if defined (NOR05) use mod_necessary_ecovars, only: bio, nbio, biodt_sou, & rivflg use m_NOR05_biochm use m_NOR05_checknan use m_NOR05_riverloads use mod_year_info, only: year_info, rt #endif /* NOR05 */ #if defined (ECOSM) use mod_necessary_ecovars, only: bio, nbio, biodt_sou, & rivflg, bio_diagn use m_ECOSM_biochm use m_ECOSM_riverloads use mod_year_info, only: year_info, rt #endif /* ECOSM */ implicit none c include 'common_blocks.h' c real r integer m,n c c --- ----------------------------------------------------------- c --- tracer-specific operations (side-wall relaxation in thermf) c --- ----------------------------------------------------------- c integer i,j,k,ktr,l real beta_b,pijk,pijkp,q c margin = 0 ! no horizontal derivatives c do ktr= 1,ntracr if (trcflg(ktr).eq.0) then if (trcrlx) then c --- tracer always trwall, when non-zero, at surface !$OMP PARALLEL DO PRIVATE(j,k,l,i,ktr,q) !$OMP& SCHEDULE(STATIC,jblk) do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) q = trwall(i,j,1,lc0,ktr)*wc0 & +trwall(i,j,1,lc1,ktr)*wc1 & +trwall(i,j,1,lc2,ktr)*wc2 & +trwall(i,j,1,lc3,ktr)*wc3 if (q.gt.0.0) then tracer(i,j,1,n,ktr) = q endif enddo !i enddo !l enddo !j !$OMP END PARALLEL DO elseif (.not. trcrlx) then c --- tracer always 10.0 at surface !$OMP PARALLEL DO PRIVATE(j,k,l,i,ktr) !$OMP& SCHEDULE(STATIC,jblk) do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) tracer(i,j,1,n,ktr) = 10.0 enddo !i enddo !l enddo !j !$OMP END PARALLEL DO endif !trcrlx:else elseif (trcflg(ktr).eq.1) then c --- psudo-silicate, half-life of 30 days in euphotic zone q = 1.0-delt1/(30.0*86400.0) !$OMP PARALLEL DO PRIVATE(j,k,l,i,ktr,pijk,pijkp,beta_b) !$OMP& SCHEDULE(STATIC,jblk) do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) if (jerlv0.eq.0) then beta_b = qonem*( akpar(i,j,lk0)*wk0 & +akpar(i,j,lk1)*wk1 & +akpar(i,j,lk2)*wk2 & +akpar(i,j,lk3)*wk3) else beta_b = betabl(jerlov(i,j)) endif pijkp=0.0 do k=1,kk pijk = pijkp pijkp = pijk+dp(i,j,k,n) if (0.5*(pijk+pijkp)*beta_b.lt.4.0) then tracer(i,j,k,n,ktr) = q*tracer(i,j,k,n,ktr) else exit !too deep endif enddo enddo !i enddo !l enddo !j !$OMP END PARALLEL DO elseif (trcflg(ktr).eq.2) then c --- temperature-like (do nothing, heat flux forcing in mixed layer) elseif (trcflg(ktr).eq.3) then c --- fully passive (do nothing) elseif (trcflg(ktr).eq.903) then c --- NPZ call trcupd_903(m,n, ktr) elseif (trcflg(ktr).eq.904) then c --- NPZD call trcupd_904(m,n, ktr) * elseif (trcflg(ktr).eq.909) then * --- Chai 9-component. * call trcupd_909(m,n, ktr) endif enddo !ktr #if defined (ECOSM) if (trcflg(1).eq.906) then c --- NORWECOM outside ktr-loop biodt_sou=baclin do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) do k=1,kk do ktr= 1,nbio bio(i,j,k,1,ktr) = tracer(i,j,k,1,ktr) bio(i,j,k,2,ktr) = tracer(i,j,k,2,ktr) end do end do end do end do end do c call NOR05_biochm(m,n,rt) call ECOSM_biochm(m,n,rt) if (rivflg==1) then if (rt%idm==1.and.rt%ihh==0.and.rt%iss==0) then call ECOSM_readnutrloads() end if call ECOSM_rivloads(n) end if ! rivflg do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) do k=1,kk do ktr= 1,nbio tracer(i,j,k,1,ktr) = bio(i,j,k,1,ktr) tracer(i,j,k,2,ktr) = bio(i,j,k,2,ktr) end do end do end do end do end do endif #endif /* ECOSM */ #if defined (NOR05) if (trcflg(1).eq.905) then c --- NORWECOM outside ktr-loop biodt_sou=baclin do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) do k=1,kk do ktr= 1,nbio bio(i,j,k,1,ktr) = tracer(i,j,k,1,ktr) bio(i,j,k,2,ktr) = tracer(i,j,k,2,ktr) end do end do end do end do end do c call NOR05_biochm(m,n,rt) if (rivflg==1) then if (rt%idm==1.and.rt%ihh==0.and.rt%iss==0) then call NOR05_readnutrloads() end if call NOR05_rivloads(n) end if ! rivflg do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) do k=1,kk do ktr= 1,nbio tracer(i,j,k,1,ktr) = bio(i,j,k,1,ktr) tracer(i,j,k,2,ktr) = bio(i,j,k,2,ktr) end do end do end do end do end do endif #endif /* NOR05 */ return end subroutine trcupd subroutine trcupd_903(m,n, ibio) use mod_xc ! HYCOM communication interface implicit none c include 'common_blocks.h' c integer m,n,ibio c c --- ------------------------------------------------- c --- tracer-specific operations for Franks NPZ biology c --- ------------------------------------------------- c real, save, dimension(mxtrcr) :: & bup, ! maximum growth rate of phytoplankton (1/d). & bgz, ! maximum grazing rate of zooplankton (1/d). & bdp, ! senescence (death) rate of phytoplankton (1/d). & bdz, ! death rate of zooplankton (1/d). & buk, ! = half-saturation coefficient for phytoplankton (mg/m^3) & asim, ! assimilation efficiency of zooplankton. & glam ! Ivlev parameter for grazing efficiency of zooplankton. c integer i,j,k,l real bm_n,bm_p,bm_z,bn_n,bn_p,bn_z,bu_n,bu_p,bu_z, & uptake,grazin,pdeath,zdeath, & pijk,pijkp,par,beta_b,frac_b c if (ibio.lt.0) then !initialize only c c --- read from tracer_NN.input: c --- 'biotyp' = type (90X=std.bio,X=3,4,9) must be 903 c --- 'bup ' = maximum growth rate of phytoplankton (1/d). c --- 'bgz ' = maximum grazing rate of zooplankton (1/d). c --- 'bdp ' = senescence (death) rate of phytoplankton (1/d). c --- 'bdz ' = death rate of zooplankton (1/d). c --- 'buk ' = half-saturation coefficient for phytoplankton (mg/m^3) c --- 'asim ' = assimilation efficiency of zooplankton. c --- 'glam ' = Ivlev parameter for grazing efficiency of zooplankton. c i = -ibio if (mnproc.eq.1) then write(lp,'(/ a,i3,a,i3,a)') & 'Franks NPZ parameters for tracers',i,' to',i+2,':' endif !1st tile c call blkini(k, 'biotyp') if (k.ne.903) then if (mnproc.eq.1) then write(lp,'(/ a /)') & 'error - biotyp must be 903' call flush(lp) endif !1st tile call xcstop('(trcini)') stop '(trcini)' endif !biotyp.ne.903 c call blkinr(bup( i), 'bup ','(a6," =",f10.4," 1/d")') call blkinr(bgz( i), 'bgz ','(a6," =",f10.4," 1/d")') call blkinr(bdp( i), 'bdp ','(a6," =",f10.4," 1/d")') call blkinr(bdz( i), 'bdz ','(a6," =",f10.4," 1/d")') call blkinr(buk( i), 'buk ','(a6," =",f10.4," mg/m^3")') call blkinr(asim( i), 'asim ','(a6," =",f10.4," ")') call blkinr(glam( i), 'glam ','(a6," =",f10.4," ")') c if (mnproc.eq.1) then write(lp,*) endif !1st tile return endif !ibio.lt.0 c c --- leapfrog time step. c margin = 0 ! no horizontal derivatives c !$OMP PARALLEL DO PRIVATE(j,l,i,k,pijk,pijkp,par, !$OMP& beta_b,frac_b, !$OMP& bm_n,bm_p,bm_z,bn_n,bn_p,bn_z, !$OMP& bu_n,bu_p,bu_z, !$OMP& uptake,grazin,pdeath,zdeath) !$OMP& SCHEDULE(STATIC,jblk) do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) if (jerlv0.eq.0) then beta_b = qonem*( akpar(i,j,lk0)*wk0 & +akpar(i,j,lk1)*wk1 & +akpar(i,j,lk2)*wk2 & +akpar(i,j,lk3)*wk3) frac_b = max( 0.27, 0.695 - 5.7*onem*beta_b ) else beta_b = betabl(jerlov(i,j)) frac_b = 1.0 - redfac(jerlov(i,j)) endif pijkp=0.0 do k=1,kk pijk = pijkp pijkp = pijk+dp(i,j,k,n) par = frac_b*exp(-0.5*(pijk+pijkp)*beta_b) c bm_n = tracer(i,j,k,m,ibio) bm_p = tracer(i,j,k,m,ibio+1) bm_z = tracer(i,j,k,m,ibio+2) bn_n = tracer(i,j,k,n,ibio) bn_p = tracer(i,j,k,n,ibio+1) bn_z = tracer(i,j,k,n,ibio+2) c uptake = bup(ibio)*bm_p*bm_n*par/(buk(ibio)+bm_n) grazin = bgz(ibio)*bm_z*(1.0-exp(-glam(ibio)*bm_p)) pdeath = bdp(ibio)*bm_p zdeath = bdz(ibio)*bm_z ! limit negative terms to 10% of total per single time step grazin = min(grazin,bn_p*0.2*86400.0/delt1) uptake = min(uptake,bn_n*0.2*86400.0/delt1) c bu_p = -grazin +uptake-pdeath bu_z = asim(ibio) *grazin-zdeath bu_n = (1.0-asim(ibio))*grazin+zdeath-uptake+pdeath c tracer(i,j,k,n,ibio) = bn_n + delt1/86400.0 * bu_n tracer(i,j,k,n,ibio+1) = bn_p + delt1/86400.0 * bu_p tracer(i,j,k,n,ibio+2) = bn_z + delt1/86400.0 * bu_z c c --- fields must be non-negative c --- note: only round-off should make a field negative c if (tracer(i,j,k,n,ibio+1).lt.0.0) then !PtoN tracer(i,j,k,n,ibio) = tracer(i,j,k,n,ibio) - & tracer(i,j,k,n,ibio+1) tracer(i,j,k,n,ibio+1) = 0.0 endif if (tracer(i,j,k,n,ibio+2).lt.0.0) then !ZtoN tracer(i,j,k,n,ibio) = tracer(i,j,k,n,ibio) - & tracer(i,j,k,n,ibio+2) tracer(i,j,k,n,ibio+2) = 0.0 endif if (tracer(i,j,k,n,ibio) .lt.0.0) then !NtoPZ (do last) tracer(i,j,k,n,ibio+1) = tracer(i,j,k,n,ibio+1) - & tracer(i,j,k,n,ibio)*0.5 tracer(i,j,k,n,ibio+2) = tracer(i,j,k,n,ibio+2) - & tracer(i,j,k,n,ibio)*0.5 tracer(i,j,k,n,ibio) = 0.0 endif enddo enddo !i enddo !l enddo !j !$OMP END PARALLEL DO return end subroutine trcupd_903 subroutine trcupd_904(m,n, ibio) use mod_xc ! HYCOM communication interface implicit none c include 'common_blocks.h' c integer m,n,ibio c c --- ------------------------------------------------------- c --- tracer-specific operations for Lima/Idrisi NPZD biology c --- ------------------------------------------------------- c real, save, dimension(mxtrcr) :: & pp, ! zoopl: preference term for phytoplankton & pz, ! zoopl: preference term for zooplankton & pd, ! zoopl: preference term for detritus & aa, ! zoopl: assimilation efficiency & am, ! zoopl: metabolic efficiency & fkz, ! zoopl: half-saturation coefficient (mg/m^3) & gmax, ! zoopl: maximum growth rate (1/day) & zmor ! zoopl: mortality (1/day) c real, save, dimension(mxtrcr) :: * & ik, ! phyto: light absorption efficiency scalar (einst/m^2/h) & fkp, ! phyto: half-saturation coefficient (mg/m^3) & pmax, ! phyto: maximum growth rate (1/day) & psen ! phyto: senescence (1/day) c real, save, dimension(mxtrcr) :: & remn ! detri: remineralization (1/day) c integer, save, dimension(mxtrcr) :: & spcflg ! tmpfn: species type (0=none,1=cold-water,2=warm-water) c real, parameter :: ! temperature function for cold-water species & ! thornton and lessem (1978) & theta1 = 16.0, ! dependence on lower optimum temperature curve & theta2 = 9.0, ! dependence on higher optimum temperature curve & theta3 = 11.0, ! maximum temperature (upper tolerance level) & q10l = 2.0, ! the metabolic q10 for temperature response & xk1 = 0.5, ! scalar constant & xk2 = 0.98, ! scalar constant & xk3 = 0.01, ! scalar constant & xk4 = 0.01 ! scalar constant c real, parameter :: ! temperature function for warm-water species & tmax = 27.0, ! Tfunc: maximum tolerated temperature & topt = 25.0, ! Tfunc: optimum temperature & q10w = 2.0 ! Tfunc: the metabolic q10 for temperature response c integer i,j,k,l real bm_n,bm_p,bm_z,bm_d,bn_n,bn_p,bn_z,bn_d, & bu_n,bu_p,bu_z,bu_d, & gamma1,gamma2,xnum,xkatheta,ynum,xkbtheta, & tijk,tfn,vw,xw,yw,zw, & pgrw,zgrw,pref,prf2,qprf,ztgx,dofz,pofz,zofz, & pijk,pijkp,par,beta_b,frac_b c if (ibio.lt.0) then !initialize only c c --- read from tracer.input: c --- 'biotyp' = type (90X=std.bio,X=3,4,9) must be 904 c c --- 'pp ' = zoopl: preference term for phytoplankton c --- 'pz ' = zoopl: preference term for zooplankton c --- 'pd ' = zoopl: preference term for detritus c --- 'aa ' = zoopl: assimilation efficiency c --- 'am ' = zoopl: metabolic efficiency c --- 'fkz ' = zoopl: half-saturation coefficient (mg/m^3) c --- 'gmax ' = zoopl: maximum growth rate (1/day) c --- 'zmor ' = zoopl: mortality (1/day) c * --- 'ik ' = phyto: light absorption efficiency scalar (einst/m^2/h) c --- 'fkp ' = phyto: half-saturation coefficient (mg/m^3) c --- 'pmax ' = phyto: maximum growth rate (1/day) c --- 'psen ' = phyto: senescence (1/day) c c --- 'remn ' = detri: remineralization (1/day) c c --- 'spcflg' = tmpfn: species type (0=none,1=cold-water,2=warm-water) c i = -ibio if (mnproc.eq.1) then write(lp,'(/ a,i3,a,i3,a)') & 'Lima/Idrisi NPZD parameters for tracers',i,' to',i+3,':' endif !1st tile c call blkini(k, 'biotyp') if (k.ne.904) then if (mnproc.eq.1) then write(lp,'(/ a /)') & 'error - biotyp must be 904' call flush(lp) endif !1st tile call xcstop('(trcini)') stop '(trcini)' endif !biotyp.ne.904 c call blkinr(pp( i), 'pp ','(a6," =",f10.4," ")') call blkinr(pz( i), 'pz ','(a6," =",f10.4," ")') call blkinr(pd( i), 'pd ','(a6," =",f10.4," ")') call blkinr(aa( i), 'aa ','(a6," =",f10.4," ")') call blkinr(am( i), 'am ','(a6," =",f10.4," ")') call blkinr(fkz( i), 'fkz ','(a6," =",f10.4," mg/m^3")') call blkinr(gmax( i), 'gmax ','(a6," =",f10.4," 1/day")') call blkinr(zmor( i), 'zmor ','(a6," =",f10.4," 1/day")') c call blkinr(fkp( i), 'fkp ','(a6," =",f10.4," mg/m^3")') call blkinr(pmax( i), 'pmax ','(a6," =",f10.4," 1/day")') call blkinr(psen( i), 'psen ','(a6," =",f10.4," 1/day")') c call blkinr(remn( i), 'remn ','(a6," =",f10.4," 1/day")') c call blkini(spcflg(i),'spcflg') c if (mnproc.eq.1) then write(lp,*) endif !1st tile return endif !ibio.lt.0 c c --- leapfrog time step. c margin = 0 ! no horizontal derivatives c !$OMP PARALLEL DO PRIVATE(j,l,i,k,pijk,pijkp,par, !$OMP& beta_b,frac_b, !$OMP& bm_n,bm_p,bm_z,bm_d,bn_n,bn_p,bn_z,bn_d, !$OMP& bu_n,bu_p,bu_z,bu_d, !$OMP& gamma1,gamma2,xnum,xkatheta,ynum,xkbtheta, !$OMP& tijk,tfn,vw,xw,yw,zw, !$OMP& pgrw,zgrw,pref,prf2,qprf,ztgx,dofz,pofz,zofz) !$OMP& SCHEDULE(STATIC,jblk) do j=1-margin,jj+margin do l=1,isp(j) do i=max(1-margin,ifp(j,l)),min(ii+margin,ilp(j,l)) if (jerlv0.eq.0) then beta_b = qonem*( akpar(i,j,lk0)*wk0 & +akpar(i,j,lk1)*wk1 & +akpar(i,j,lk2)*wk2 & +akpar(i,j,lk3)*wk3) frac_b = max( 0.27, 0.695 - 5.7*onem*beta_b ) else beta_b = betabl(jerlov(i,j)) frac_b = 1.0 - redfac(jerlov(i,j)) endif pijkp=0.0 do k=1,kk pijk = pijkp pijkp = pijk+dp(i,j,k,n) par = frac_b*exp(-0.5*(pijk+pijkp)*beta_b) c bm_n = tracer(i,j,k,m,ibio) bm_p = tracer(i,j,k,m,ibio+1) bm_z = tracer(i,j,k,m,ibio+2) bm_d = tracer(i,j,k,m,ibio+3) bn_n = tracer(i,j,k,n,ibio) bn_p = tracer(i,j,k,n,ibio+1) bn_z = tracer(i,j,k,n,ibio+2) bn_d = tracer(i,j,k,n,ibio+3) c if (spcflg(ibio).eq.1) then c --- cold-water species temperature dependance tijk = temp(i,j,k,n) gamma1 = 1.0/(theta2-q10l) * & log((xk2*(1.0-xk1))/(xk1*(1.0-xk2))) gamma2 = 1.0/(theta1-theta3) * & log((xk2*(1.0-xk3))/(xk4*(1.0-xk2))) xnum = exp(gamma1*(tijk-q10l)) xkatheta = (xk1*xnum)/(1.0+xk1*(xnum-1.0)) ynum = exp(gamma2*(theta1-tijk)) xkbtheta = (xk4*ynum)/(1.0+xk3*(ynum-1.0)) tfn = xkatheta*xkbtheta elseif (spcflg(ibio).eq.2) then c --- warm-water species temperature dependance tijk = temp(i,j,k,n) if (tijk.le.tmax) then vw = (tmax-tijk)/(tmax-topt) yw = log(q10w)*(tmax-topt+2.0) zw = log(q10w)*(tmax-topt) xw = (zw**2 * (1.0+sqrt(1.0+40.0/yw))**2)/400.0 tfn = vw**xw * exp(xw*(1.0-vw)) else tfn=0.0 endif else c --- no temperature dependance tfn=1.0 endif !spcflg c pref = pp(ibio)*bm_p + & pd(ibio)*bm_d + & pz(ibio)*bm_z prf2 = pp(ibio)*bm_p**2 + & pd(ibio)*bm_d**2 + & pz(ibio)*bm_z**2 qprf = 1.0/(fkz(ibio)*pref + prf2 + epsil) !epsil prevents 1/0 ztgx = bm_z*tfn*gmax(ibio) c pgrw = bm_p*tfn*pmax(ibio)*bm_n*par/(fkp(ibio)+bm_n) zgrw = ztgx*(prf2 *qprf)*aa(ibio)*am(ibio) pofz = ztgx*(pp(ibio)*bm_p**2*qprf) zofz = ztgx*(pz(ibio)*bm_z**2*qprf) dofz = ztgx*(pd(ibio)*bm_d**2*qprf) c ! limit negative terms to 10% of total per single time step pgrw = min(pgrw,bn_n*0.2*86400.0/delt1) zgrw = min(zgrw,bn_n*0.2*86400.0/delt1) pofz = min(pofz,bn_p*0.2*86400.0/delt1) zofz = min(zofz,bn_z*0.2*86400.0/delt1) dofz = min(dofz,bn_d*0.2*86400.0/delt1) c bu_p = pgrw & - pofz & - bm_p*psen(ibio) bu_z = zgrw & - zofz & - bm_z*zmor(ibio) bu_d = bm_p*psen(ibio) & + bm_z*zmor(ibio) & + (pofz+zofz+dofz)*(1.0-aa(ibio)) & - dofz & - bm_d*remn(ibio) bu_n = bm_d*remn(ibio) & + (pofz+zofz+dofz)* aa(ibio) & - zgrw & - pgrw c tracer(i,j,k,n,ibio) = bn_n + delt1/86400.0 * bu_n tracer(i,j,k,n,ibio+1) = bn_p + delt1/86400.0 * bu_p tracer(i,j,k,n,ibio+2) = bn_z + delt1/86400.0 * bu_z tracer(i,j,k,n,ibio+3) = bn_d + delt1/86400.0 * bu_d c c --- fields must be non-negative c --- note: only round-off should make a field negative c if (tracer(i,j,k,n,ibio+1).lt.0.0) then !PtoN tracer(i,j,k,n,ibio) = tracer(i,j,k,n,ibio) - & tracer(i,j,k,n,ibio+1) tracer(i,j,k,n,ibio+1) = 0.0 endif if (tracer(i,j,k,n,ibio+2).lt.0.0) then !ZtoN tracer(i,j,k,n,ibio) = tracer(i,j,k,n,ibio) - & tracer(i,j,k,n,ibio+2) tracer(i,j,k,n,ibio+2) = 0.0 endif if (tracer(i,j,k,n,ibio+3).lt.0.0) then !DtoN tracer(i,j,k,n,ibio) = tracer(i,j,k,n,ibio) - & tracer(i,j,k,n,ibio+3) tracer(i,j,k,n,ibio+3) = 0.0 endif if (tracer(i,j,k,n,ibio) .lt.0.0) then !NtoD (do last) tracer(i,j,k,n,ibio+3) = tracer(i,j,k,n,ibio+3) - & tracer(i,j,k,n,ibio) tracer(i,j,k,n,ibio) = 0.0 endif enddo enddo !i enddo !l enddo !j !$OMP END PARALLEL DO return end subroutine trcupd_904 subroutine pcmtrc(si,pi,ki,ks, so,po,ko) implicit none c integer ki,ks,ko real si(ki,ks),pi(ki+1), & so(ko,ks),po(ko+1) c c********** c* c 1) remap from one set of vertical cells to another. c method: piecewise constant across each input cell c the output is the average of the interpolation c profile across each output cell. c c 2) input arguments: c si - scalar fields in pi-layer space c pi - layer interface depths (non-negative m) c pi( 1) is the surface c pi(ki+1) is the bathymetry c ki - 1st dimension of si (number of input layers) c ks - 2nd dimension of si,so (number of fields) c po - target interface depths (non-negative m) c po(k+1) >= po(k) c ko - 1st dimension of so (number of output layers) c c 3) output arguments: c so - scalar fields in po-layer space c c 4) except at data voids, must have: c pi( 1) == zero (surface) c pi( l+1) >= pi(l) c pi(ki+1) == bathymetry c 0 <= po(k) <= po(k+1) c output layers completely below the bathymetry inherit values c from the layer above. c c 5) Alan J. Wallcraft, Naval Research Laboratory, Sep. 2002 (Aug. 2005). c* c********** c real thin parameter (thin=1.e-6) ! minimum layer thickness (no division by 0.0) c integer i,k,l,lf real q,zb,zt,sok(ks) c lf=1 zb=po(1) do k= 1,ko zt = zb zb = po(k+1) * WRITE(6,*) 'k,zt,zb = ',k,zt,zb if (zb-zt.lt.thin .or. zt.ge.pi(ki+1)) then c c --- thin or bottomed layer, values taken from layer above c do i= 1,ks so(k,i) = so(k-1,i) enddo !i else c c form layer averages. c if (pi(lf).gt.zt) then WRITE(6,*) 'bad lf = ',lf stop endif do i= 1,ks sok(i) = 0.0 enddo !i do l= lf,ki if (pi(l).gt.zb) then * WRITE(6,*) 'l,lf= ',l,lf,l-1 lf = l-1 exit elseif (pi(l).ge.zt .and. pi(l+1).le.zb) then c c the input layer is completely inside the output layer c q = max(pi(l+1)-pi(l),thin)/(zb-zt) do i= 1,ks sok(i) = sok(i) + q*si(l,i) enddo !i * WRITE(6,*) 'L,q = ',l,q else c c the input layer is partially inside the output layer c q = max(min(pi(l+1),zb)-max(pi(l),zt),thin)/(zb-zt) do i= 1,ks sok(i) = sok(i) + q*si(l,i) enddo !i * WRITE(6,*) 'l,q = ',l,q endif enddo !l do i= 1,ks so(k,i) = sok(i) enddo !i endif enddo !k return end subroutine pcmtrc subroutine plmtrc(si,pi,ki,ks, so,po,ko) implicit none c integer ki,ks,ko real si(ki,ks),pi(ki+1), & so(ko,ks),po(ko+1),flag c c********** c* c 1) remap from one set of vertical cells to another. c method: piecewise linear across each input cell c the output is the average of the interpolation c profile across each output cell. c c 2) input arguments: c si - scalar fields in pi-layer space c pi - layer interface depths (non-negative m) c pi( 1) is the surface c pi(ki+1) is the bathymetry c ki - 1st dimension of si (number of input layers) c ks - 2nd dimension of si,so (number of fields) c po - target interface depths (non-negative m) c po(k+1) >= po(k) c ko - 1st dimension of so (number of output layers) c flag - data void (land) marker c c 3) output arguments: c so - scalar fields in po-layer space c c 4) except at data voids, must have: c pi( 1) == zero (surface) c pi( l+1) >= pi(l) c pi(ki+1) == bathymetry c 0 <= po(k) <= po(k+1) c output layers completely below the bathymetry inherit values c from the layer above. c c 5) Tim Campbell, Mississippi State University, October 2002. C Alan J. Wallcraft, Naval Research Laboratory, Aug. 2005. c* c********** c real,parameter :: thin=1.e-6 !minimum layer thickness c integer i,k,l,lf real q,qc,zb,zc,zt,sok(ks) real sis(ki,ks),pit(ki+1) real si_min(ks),si_max(ks) c c --- inforce minval(si(:,i)) <= minval(so(:,i)) and c --- maxval(si(:,i)) >= maxval(so(:,i)) for i=1:ks c --- in particular this inforces non-negativity, e.g. of tracers c --- only required due to finite precision c do i= 1,ks si_min(i) = minval(si(:,i)) si_max(i) = maxval(si(:,i)) enddo !i c c --- compute PLM slopes for input layers do k=1,ki pit(k)=max(pi(k+1)-pi(k),thin) enddo call plmtrcx(pit,si,sis,ki,ks) c --- compute output layer averages lf=1 zb=po(1) do k= 1,ko zt = zb zb = po(k+1) * WRITE(6,*) 'k,zt,zb = ',k,zt,zb if (zb-zt.lt.thin .or. zt.ge.pi(ki+1)) then c c --- thin or bottomed layer, values taken from layer above c do i= 1,ks so(k,i) = so(k-1,i) enddo !i else c c form layer averages. c if (pi(lf).gt.zt) then WRITE(6,*) 'bad lf = ',lf stop endif do i= 1,ks sok(i) = 0.0 enddo !i do l= lf,ki if (pi(l).gt.zb) then * WRITE(6,*) 'l,lf= ',l,lf,l-1 lf = l-1 exit elseif (pi(l).ge.zt .and. pi(l+1).le.zb) then c c the input layer is completely inside the output layer c q = max(pi(l+1)-pi(l),thin)/(zb-zt) do i= 1,ks sok(i) = sok(i) + q*si(l,i) enddo !i * WRITE(6,*) 'L,q = ',l,q else c c the input layer is partially inside the output layer c average of linear profile is its center value c q = max( min(pi(l+1),zb)-max(pi(l),zt), thin )/(zb-zt) zc = 0.5*(min(pi(l+1),zb)+max(pi(l),zt)) qc = (zc-pi(l))/pit(l) - 0.5 do i= 1,ks sok(i) = sok(i) + q*(si(l,i) + qc*sis(l,i)) enddo !i * WRITE(6,*) 'l,q,qc = ',l,q,qc endif enddo !l do i= 1,ks so(k,i) = sok(i) so(k,i) = max( si_min(i), so(k,i) ) so(k,i) = min( si_max(i), so(k,i) ) enddo !i endif enddo !k return end subroutine plmtrc subroutine plmtrcx(pt, s,ss,ki,ks) implicit none c integer ki,ks real pt(ki+1),s(ki,ks),ss(ki,ks) c c********** c* c 1) generate a monotonic PLM interpolation of a layered field c c 2) input arguments: c pt - layer interface thicknesses (non-zero) c s - scalar fields in layer space c ki - 1st dimension of s (number of layers) c ks - 2nd dimension of s (number of fields) c c 3) output arguments: c ss - scalar field slopes for PLM interpolation c c 4) except at data voids, must have: c pi( 1) == zero (surface) c pi( l+1) >= pi(:,:,l) c pi(ki+1) == bathymetry c c 5) Tim Campbell, Mississippi State University, September 2002. c* c********** c integer l real ql(ki),qc(ki),qr(ki) c !compute grid spacing ratios for slope computations ql(1)=0.0 qc(1)=0.0 qr(1)=0.0 do l=2,ki-1 ql(l)=2.0*pt(l)/(pt(l-1)+pt(l)) qc(l)=2.0*pt(l)/(pt(l-1)+2.0*pt(l)+pt(l+1)) qr(l)=2.0*pt(l)/(pt(l)+pt(l+1)) enddo ql(ki)=0.0 qc(ki)=0.0 qr(ki)=0.0 !compute normalized layer slopes do l=1,ks call plmtrcs(ql,qc,qr,s(1,l),ss(1,l),ki) enddo return end subroutine plmtrcx subroutine plmtrcs(rl,rc,rr,a,s,n) implicit none c integer,intent(in) :: n real, intent(in) :: rl(n),rc(n),rr(n),a(n) real, intent(out) :: s(n) c c********** c* c 1) generate slopes for monotonic piecewise linear distribution c c 2) input arguments: c rl - left grid spacing ratio c rc - center grid spacing ratio c rr - right grid spacing ratio c a - scalar field zone averages c n - number of zones c c 3) output arguments: c s - zone slopes c c 4) Tim Campbell, Mississippi State University, September 2002. c* c********** c integer,parameter :: ic=2, im=1, imax=100 real,parameter :: fracmin=1e-6, dfac=0.5 c integer i,j real sl,sc,sr real dnp,dnn,dl,dr,ds,frac c c Compute zone slopes c Campbell Eq(15) -- nonuniform grid c s(1)=0.0 do j=2,n-1 sl=rl(j)*(a(j)-a(j-1)) sr=rr(j)*(a(j+1)-a(j)) if (sl*sr.gt.0.) then s(j)=sign(min(abs(sl),abs(sr)),sl) else s(j)=0.0 endif enddo s(n)=0.0 c c Minimize discontinuities between zones c Apply single pass discontinuity minimization: Campbell Eq(19) c do j=2,n-1 if(s(j).ne.0.0) then dl=-0.5*(s(j)+s(j-1))+a(j)-a(j-1) dr=-0.5*(s(j+1)+s(j))+a(j+1)-a(j) ds=sign(min(abs(dl),abs(dr)),dl) s(j)=s(j)+2.0*ds endif enddo return end subroutine plmtrcs c c c> Revision history: c> c> Aug 2002 - new routine to put all tracer interactions in one place c> Dec. 2003 - inforce non-negative bio-tracers c> Aug. 2005 - interpolate trwall to actual layer structure