#include "ctrparam.h" SUBROUTINE GTREND(XGAS,YEART,NGAS) 9155.9 C 9156. C-----------------------------------------------------------------------9156.1 C T-GAS SCENARIO G: 9156.2 C 9156.3 C 9156.4 C CO2: 9156.5 C 0.01/YR INCREASE form 1977 9156.6 C 9156.7 C 9156.8 C N2O, CH4 and CFC for 1977 C 9156.9 C N2O: WEISS FORMULA THRU 1978, 0.035/YR INCREASE 9157. C IN 1978 INCREMENT THRU 1990, 0.025/YR 9157.1 C THRU 2000, 0.015/YR THRU 2010, 0.005/YR 9157.2 C INCREASE IN INCREMENT BEYOND 2010 9157.3 C 9157.4 C CH4: OBSERVED RATES THRU 1980, 9157.5 C 0.015/YR INCREASE THRU 1990, 0.010/YR 9157.6 C INCREASE THRU 2000, 0.005/YR BEYOND 2000 9157.7 C 9157.8 C CFC: OBSERVED CONCENTRATION THRU 1984, 9157.9 C 0.03 EMISSION RATE INCREASE TO 1990, 9158. C 0.02 EMISSION RATE INCREASE TO 2000, 9158.1 C 0.01 EMISSION RATE INCREASE TO 2010, 9158.2 C CONSTANT EMISSION RATE BEYOND 2010 9158.3 C 9158.4 C-----------------------------------------------------------------------9158.5 C 9158.6 DIMENSION XGAS(5) 9158.7 DIMENSION XXF11(45),XXF12(45),XXCO2(27) 9158.8 COMMON/CO2TRND/ALFFOR,CO2TR,YEARGT,CO2IN,INYRAD common/ BACKGRGHG/GHGBGR(5) save data ifirst /0/ DATA XXF11/ 9158.9 10.00001,0.00001,0.00001,0.00001,0.00001,0.00004,0.00010,0.00023, 9159. 20.00041,0.00066,0.00100,0.00148,0.00215,0.00297,0.00397,0.00523, 9159.1 30.00662,0.00791,0.00921,0.01093,0.01316,0.01596,0.01939,0.02345, 9159.2 40.02807,0.03321,0.03904,0.04569,0.05343,0.06224,0.07186,0.08267, 9159.3 50.09505,0.10867,0.12174,0.13422,0.14665,0.15820,0.16871,0.17841, 9159.4 60.18919,0.19983,0.21032,0.22068,0.23090/ 9159.5 DATA XXF12/ 9159.6 10.00001,0.00001,0.00001,0.00040,0.00112,0.00198,0.00298,0.00411, 9159.7 20.00539,0.00679,0.00836,0.00998,0.01181,0.01387,0.01619,0.01888, 9159.8 30.02195,0.02513,0.02868,0.03292,0.03766,0.04312,0.04954,0.05702, 9159.9 40.06546,0.07485,0.08545,0.09756,0.11130,0.12634,0.14250,0.16011, 9160. 50.17962,0.20082,0.22144,0.24105,0.25951,0.27630,0.29247,0.30831, 9160.1 60.32585,0.34328,0.36059,0.37778,0.39486/ 9160.2 DATA XXCO2/ 9160.3 1 315.00, 315.69, 316.66, 317.27, 318.24, 318.93, 319.33, 319.95, 9160.4 2 320.80, 321.44, 322.25, 323.44, 324.82, 326.01, 326.97, 328.86, 9160.5 3 330.35, 330.71, 331.69, 332.83, 334.58, 335.95, 337.65, 339.04, 9160.6 4 340.01, 341.56, 343.81/ 9160.7 C 9160.8 if (ifirst.eq.0)then if(ALFFOR.gt.0.0)then CO2IN=GHGBGR(1) endif print *,' gtrend.f',100*ALFFOR,'% per year from',CO2IN print *,'N2O, CH4 and CFCs ' print '(4e10.5)',(GHGBGR(ii),ii=2,5) c ifirst=1 endif YEAR=YEART DT=YEAR-INYRAD XX0=CO2IN XX=XX0*(1.+ALFFOR)**DT XGAS(1)=XX 9182.3 CO2TR=XGAS(1) do ii=2,5 XGAS(ii)=GHGBGR(ii) enddo if (ifirst.eq.0)then print *,'From GTREND' print '(5e12.4)',(XGAS(ii),ii=1,5) ifirst=1 endif RETURN 9182.5 END 9182.6 ! ---------------------------------------------------------- subroutine bmtrnd(XGASS,YEAR,NGAS) parameter (nyd=2000,nyd1=nyd+1) C C C For simulations with observed forcing using equivalent C CO2 concentrations from file co2_data C Concentrations of other GHGs are c those for 1958. C DATA are annual means, but they are C used as a data for the middle of the coresponding year C C real XGASS(NGAS) dimension XG1958(5), xf11(nyd),xf12(nyd),xco2(nyd),xn2o(nyd), *xch4(nyd),ighgyr(nyd) real xxf11(nyd1),xxf12(nyd1),xxco2(nyd1),xxn2o(nyd1),xxch4(nyd1) common/boxmod/YEAR0 common /bmtrdata/co2_data common/ BACKGRGHG/GHGBGR(5) character * 64 co2_data logical first data first /.true./ data ncall /1/ if(first)then print *,' BMTREND for observed forcing' open (unit=561,file=co2_data, * status='OLD',form='formatted') do 50 i=1,nyd c read (561,501,end=500),ighgyr(i),tmp,xco2(i) read (561,*,end=500),ighgyr(i),xco2(i) 50 continue 500 continue close (561) do ii=1,5 XG1958(ii)=GHGBGR(ii) enddo ny=i-2 ny1=ny+1 ny2=ny+2 YEAR0=ighgyr(1)-1 print *,'From FORSET' print *,' year=',year print *,'YEAR0=',YEAR0 501 format(i4,2f8.2) c xxco2(1)=XG1958(1) xxco2(1)=2.*xco2(1)-xco2(2) xxn2o(1)=XG1958(2) xxch4(1)=XG1958(3) xxf11(1)=XG1958(4)*1000. xxf12(1)=XG1958(5)*1000. do 10 i=1,ny1 xxco2(i+1)=xco2(i) 10 continue first=.false. endif if(ncall.eq.2)then print *,'BMTRND from FORGET' print *,' year=',year print *,'YEAR0=',YEAR0 endif call ghgint(xx,xxco2,ny2,YEAR) XGASS(1)=xx XGASS(2)=XG1958(2) XGASS(3)=XG1958(3) XGASS(4)=XG1958(4)*1000. XGASS(5)=XG1958(5)*1000. if(ncall.lt.3)ncall=ncall+1 return end subroutine ghgint(xx,xxf,ny,year) common/boxmod/YEAR0 real xxf(ny) i=year+0.5 dl=year+.5-i i=i-YEAR0 if(i.lt.1.or.i.ge.ny)then print *,' error in ghgint i=',i stop 25 endif c print *,'YEAR=',YEAR xx=xxf(i)*(1.-dl)+xxf(i+1)*dl c print *,i,dl,xxf(i),xxf(i+1),xx return end subroutine bmtrndmg(XGASS,YEAR,NGAS) parameter (nyd=2000,nyd1=nyd+1) c c Multi-gas version of box-model trend routine c - added 22 Aug 2002 - ceforest C - greenhouse gas concentrations taken from GISS dataset on web c - CFC-11 includes other long-lived gases C C For simulations with observed forcing using equivalent C CO2 concentrations from file co2_data C Concentrations of other GHGs are c those for 1958. C DATA are annual means, but they are C used as a data for the middle of the coresponding year C C real XGASS(NGAS) dimension xf11(nyd),xf12(nyd),xco2(nyd),xn2o(nyd), *xch4(nyd),ighgyr(nyd) real xxf11(nyd1),xxf12(nyd1),xxco2(nyd1),xxn2o(nyd1),xxch4(nyd1) common/boxmod/YEAR0 common /bmtrdata/co2_data common/ BACKGRGHG/GHGBGR(5) character * 64 co2_data logical first data first /.true./ data ncall /1/ if(first)then print *,' BMTRENDMG for observed forcing' open (unit=561,file=co2_data, * status='OLD',form='formatted') do 50 i=1,nyd c read (561,501,end=500),ighgyr(i),tmp,xco2(i) c f11 includes other long-lived gases read (561,*,end=500),ighgyr(i),xco2(i),xn2o(i), * xch4(i), xf11(i),xf12(i) 50 continue 500 continue close (561) do ii=1,3 XGASS(ii)=GHGBGR(ii) enddo do ii=4,5 XGASS(ii)=GHGBGR(ii)*1000. enddo ! CFC11 and CFC12 are converted in ppb ny=i-2 ny1=ny+1 ny2=ny+2 YEAR0=ighgyr(1)-1 print *,'From FORSET' print *,' TREF=',YEAR print *,' XREF' print *,XGASS print *,' year=',year print *,' ghgdata for ',ny,' years from ', ighgyr(1), ' to ' & , ighgyr(ny) 501 format(i4,2f8.2) xxco2(1)=2.*xco2(1)-xco2(2) xxn2o(1)=2.*xn2o(1)-xn2o(2) xxch4(1)=2.*xch4(1)-xch4(2) xxf11(1)=(2.*xf11(1)-xf11(2))*1000. xxf12(1)=(2.*xf12(1)-xf12(2))*1000. do 10 i=1,ny1 xxco2(i+1)=xco2(i) xxn2o(i+1)=xn2o(i) xxch4(i+1)=xch4(i) xxf11(i+1)=xf11(i)*1000. xxf12(i+1)=xf12(i)*1000. 10 continue first=.false. return endif call ghgint(xx,xxco2,ny2,YEAR) XGASS(1)=xx call ghgint(xx,xxn2o,ny2,YEAR) XGASS(2)=xx call ghgint(xx,xxch4,ny2,YEAR) XGASS(3)=xx call ghgint(xx,xxf11,ny2,YEAR) XGASS(4)=xx call ghgint(xx,xxf12,ny2,YEAR) XGASS(5)=xx if(ncall.eq.2)then print *,'BMTRND from FORGET' print *,' year=',year print *,'YEAR0=',YEAR0 print *,' XGASS' print *,XGASS endif if(ncall.lt.3)ncall=ncall+1 return end