| 1 | MODULE optci_mod |
|---|
| 2 | |
|---|
| 3 | IMPLICIT NONE |
|---|
| 4 | |
|---|
| 5 | CONTAINS |
|---|
| 6 | |
|---|
| 7 | subroutine optci(PLEV,TLEV,DTAUI,TAUCUMI, & |
|---|
| 8 | QXIAER,QSIAER,GIAER,COSBI,WBARI,TAUAERO, & |
|---|
| 9 | TMID,PMID,TAUGSURF,QVAR,MUVAR) |
|---|
| 10 | |
|---|
| 11 | use radinc_h, only: L_LEVELS, L_NLAYRAD, L_NSPECTI, L_NGAUSS, & |
|---|
| 12 | L_NLEVRAD, L_REFVAR, naerkind |
|---|
| 13 | use radcommon_h, only: gasi,tlimit,wrefVAR,Cmk,tgasref,pfgasref,wnoi,scalep,indi,glat_ig |
|---|
| 14 | use gases_h, only: gfrac, ngasmx, igas_N2, igas_He, igas_H2O, igas_H2, & |
|---|
| 15 | igas_CH4, igas_CO2 |
|---|
| 16 | use comcstfi_mod, only: g, r, mugaz |
|---|
| 17 | use callkeys_mod, only: kastprof,continuum,graybody |
|---|
| 18 | use recombin_corrk_mod, only: corrk_recombin, gasi_recomb |
|---|
| 19 | use tpindex_mod, only: tpindex |
|---|
| 20 | |
|---|
| 21 | implicit none |
|---|
| 22 | |
|---|
| 23 | !================================================================== |
|---|
| 24 | ! |
|---|
| 25 | ! Purpose |
|---|
| 26 | ! ------- |
|---|
| 27 | ! Calculates longwave optical constants at each level. For each |
|---|
| 28 | ! layer and spectral interval in the IR it calculates WBAR, DTAU |
|---|
| 29 | ! and COSBAR. For each level it calculates TAU. |
|---|
| 30 | ! |
|---|
| 31 | ! TAUCUMI(L,LW) is the cumulative optical depth at level L (or alternatively |
|---|
| 32 | ! at the *bottom* of layer L), LW is the spectral wavelength interval. |
|---|
| 33 | ! |
|---|
| 34 | ! TLEV(L) - Temperature at the layer boundary (i.e., level) |
|---|
| 35 | ! PLEV(L) - Pressure at the layer boundary (i.e., level) |
|---|
| 36 | ! |
|---|
| 37 | ! Authors |
|---|
| 38 | ! ------- |
|---|
| 39 | ! Adapted from the NASA Ames code by R. Wordsworth (2009) |
|---|
| 40 | ! |
|---|
| 41 | !================================================================== |
|---|
| 42 | |
|---|
| 43 | |
|---|
| 44 | real*8,intent(out) :: DTAUI(L_NLAYRAD,L_NSPECTI,L_NGAUSS) |
|---|
| 45 | real*8 DTAUKI(L_LEVELS,L_NSPECTI,L_NGAUSS) |
|---|
| 46 | real*8 TAUI(L_NLEVRAD,L_NSPECTI,L_NGAUSS) |
|---|
| 47 | real*8,intent(out) :: TAUCUMI(L_LEVELS,L_NSPECTI,L_NGAUSS) |
|---|
| 48 | real*8,intent(in) :: PLEV(L_LEVELS) |
|---|
| 49 | real*8,intent(in) :: TLEV(L_LEVELS) ! not used |
|---|
| 50 | real*8,intent(in) :: TMID(L_LEVELS) |
|---|
| 51 | real*8,intent(in) :: PMID(L_LEVELS) |
|---|
| 52 | real*8,intent(out) :: COSBI(L_NLAYRAD,L_NSPECTI,L_NGAUSS) |
|---|
| 53 | real*8,intent(out) :: WBARI(L_NLAYRAD,L_NSPECTI,L_NGAUSS) |
|---|
| 54 | |
|---|
| 55 | ! for aerosols |
|---|
| 56 | real*8,intent(in) :: QXIAER(L_LEVELS,L_NSPECTI,NAERKIND) |
|---|
| 57 | real*8,intent(in) :: QSIAER(L_LEVELS,L_NSPECTI,NAERKIND) |
|---|
| 58 | real*8,intent(in) :: GIAER(L_LEVELS,L_NSPECTI,NAERKIND) |
|---|
| 59 | real*8,intent(in) :: TAUAERO(L_LEVELS,NAERKIND) |
|---|
| 60 | |
|---|
| 61 | ! local variables (saved for convenience as need be allocated) |
|---|
| 62 | real*8,save,allocatable :: TAUAEROLK(:,:,:) |
|---|
| 63 | real*8,save,allocatable :: TAEROS(:,:,:) |
|---|
| 64 | !$OMP THREADPRIVATE(TAUAEROLK,TAEROS) |
|---|
| 65 | |
|---|
| 66 | integer L, NW, NG, K, LK, IAER |
|---|
| 67 | integer MT(L_LEVELS), MP(L_LEVELS), NP(L_LEVELS) |
|---|
| 68 | real*8 ANS, TAUGAS |
|---|
| 69 | real*8 DPR(L_LEVELS), U(L_LEVELS) |
|---|
| 70 | real*8 LCOEF(4), LKCOEF(L_LEVELS,4) |
|---|
| 71 | |
|---|
| 72 | real*8,intent(out) :: taugsurf(L_NSPECTI,L_NGAUSS-1) |
|---|
| 73 | real*8 DCONT,DAERO |
|---|
| 74 | double precision wn_cont, p_cont, p_air, T_cont, dtemp, dtempc |
|---|
| 75 | double precision p_cross |
|---|
| 76 | |
|---|
| 77 | ! variable species mixing ratio variables |
|---|
| 78 | real*8,intent(in) :: QVAR(L_LEVELS) |
|---|
| 79 | real*8,intent(in) :: MUVAR(L_LEVELS) |
|---|
| 80 | real*8 WRATIO(L_LEVELS) |
|---|
| 81 | real*8 KCOEF(4) |
|---|
| 82 | integer NVAR(L_LEVELS) |
|---|
| 83 | |
|---|
| 84 | ! temporary variables to reduce memory access time to gasi |
|---|
| 85 | real*8 tmpk(2,2) |
|---|
| 86 | real*8 tmpkvar(2,2,2) |
|---|
| 87 | |
|---|
| 88 | ! temporary variables for multiple aerosol calculation |
|---|
| 89 | real*8 atemp |
|---|
| 90 | real*8 btemp(L_NLAYRAD,L_NSPECTI) |
|---|
| 91 | |
|---|
| 92 | ! variables for k in units m^-1 |
|---|
| 93 | real*8 dz(L_LEVELS) |
|---|
| 94 | !real*8 rho !! see test below |
|---|
| 95 | |
|---|
| 96 | integer igas, jgas |
|---|
| 97 | |
|---|
| 98 | integer interm |
|---|
| 99 | |
|---|
| 100 | logical :: firstcall=.true. |
|---|
| 101 | !$OMP THREADPRIVATE(firstcall) |
|---|
| 102 | |
|---|
| 103 | !--- Kasting's CIA ---------------------------------------- |
|---|
| 104 | !real*8, parameter :: Ci(L_NSPECTI)=[ & |
|---|
| 105 | ! 3.8E-5, 1.2E-5, 2.8E-6, 7.6E-7, 4.5E-7, 2.3E-7, & |
|---|
| 106 | ! 5.4E-7, 1.6E-6, 0.0, & |
|---|
| 107 | ! 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, & |
|---|
| 108 | ! 0.0, 4.0E-7, 4.0E-6, 1.4E-5, & |
|---|
| 109 | ! 1.0E-5, 1.2E-6, 2.0E-7, 5.0E-8, 3.0E-8, 0.0 ] |
|---|
| 110 | !real*8, parameter :: Ti(L_NSPECTI)=[ -2.2, -1.9, & |
|---|
| 111 | ! -1.7, -1.7, -1.7, -1.7, -1.7, -1.7, & |
|---|
| 112 | ! 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, & |
|---|
| 113 | ! -1.7,-1.7,-1.7,-1.7,-1.7,-1.7,-1.7, -1.7,0.0 ] |
|---|
| 114 | !---------------------------------------------------------- |
|---|
| 115 | |
|---|
| 116 | if (firstcall) then |
|---|
| 117 | ! allocate local arrays of size "naerkind" (which are also |
|---|
| 118 | ! "saved" so that this is done only once in for all even if |
|---|
| 119 | ! we don't need to store the value from a time step to the next) |
|---|
| 120 | allocate(TAUAEROLK(L_LEVELS,L_NSPECTI,NAERKIND)) |
|---|
| 121 | allocate(TAEROS(L_LEVELS,L_NSPECTI,NAERKIND)) |
|---|
| 122 | firstcall=.false. |
|---|
| 123 | endif ! of if (firstcall) |
|---|
| 124 | |
|---|
| 125 | !! AS: to save time in computing continuum (see bilinearbig) |
|---|
| 126 | IF (.not.ALLOCATED(indi)) THEN |
|---|
| 127 | ALLOCATE(indi(L_NSPECTI,ngasmx,ngasmx)) |
|---|
| 128 | indi = -9999 ! this initial value means "to be calculated" |
|---|
| 129 | ENDIF |
|---|
| 130 | |
|---|
| 131 | !======================================================================= |
|---|
| 132 | ! Determine the total gas opacity throughout the column, for each |
|---|
| 133 | ! spectral interval, NW, and each Gauss point, NG. |
|---|
| 134 | |
|---|
| 135 | taugsurf(:,:) = 0.0 |
|---|
| 136 | dpr(:) = 0.0 |
|---|
| 137 | lkcoef(:,:) = 0.0 |
|---|
| 138 | |
|---|
| 139 | do K=2,L_LEVELS |
|---|
| 140 | DPR(k) = PLEV(K)-PLEV(K-1) |
|---|
| 141 | |
|---|
| 142 | !--- Kasting's CIA ---------------------------------------- |
|---|
| 143 | !dz(k)=dpr(k)*189.02*TMID(K)/(0.03720*PMID(K)) |
|---|
| 144 | ! this is CO2 path length (in cm) as written by Francois |
|---|
| 145 | ! delta_z = delta_p * R_specific * T / (g * P) |
|---|
| 146 | ! But Kasting states that W is in units of _atmosphere_ cm |
|---|
| 147 | ! So we do |
|---|
| 148 | !dz(k)=dz(k)*(PMID(K)/1013.25) |
|---|
| 149 | !dz(k)=dz(k)/100.0 ! in m for SI calc |
|---|
| 150 | !---------------------------------------------------------- |
|---|
| 151 | |
|---|
| 152 | ! if we have continuum opacities, we need dz |
|---|
| 153 | if(kastprof)then |
|---|
| 154 | dz(k) = dpr(k)*(1000.0d0*8.3145d0/muvar(k))*TMID(K)/(g*PMID(K)) |
|---|
| 155 | U(k) = Cmk*DPR(k)*mugaz/muvar(k) |
|---|
| 156 | else |
|---|
| 157 | dz(k) = dpr(k)*R*TMID(K)/(glat_ig*PMID(K))*mugaz/muvar(k) |
|---|
| 158 | U(k) = Cmk*DPR(k)*mugaz/muvar(k) ! only Cmk line in optci.F |
|---|
| 159 | !JL13 the mugaz/muvar factor takes into account water meanmolecular weight if water is present |
|---|
| 160 | endif |
|---|
| 161 | |
|---|
| 162 | call tpindex(PMID(K),TMID(K),QVAR(K),pfgasref,tgasref,WREFVAR, & |
|---|
| 163 | LCOEF,MT(K),MP(K),NVAR(K),WRATIO(K)) |
|---|
| 164 | |
|---|
| 165 | do LK=1,4 |
|---|
| 166 | LKCOEF(K,LK) = LCOEF(LK) |
|---|
| 167 | end do |
|---|
| 168 | end do ! levels |
|---|
| 169 | |
|---|
| 170 | ! Spectral dependance of aerosol absorption |
|---|
| 171 | do iaer=1,naerkind |
|---|
| 172 | DO NW=1,L_NSPECTI |
|---|
| 173 | do K=2,L_LEVELS |
|---|
| 174 | TAEROS(K,NW,IAER) = TAUAERO(K,IAER) * QXIAER(K,NW,IAER) |
|---|
| 175 | end do ! levels |
|---|
| 176 | END DO |
|---|
| 177 | end do |
|---|
| 178 | |
|---|
| 179 | do NW=1,L_NSPECTI |
|---|
| 180 | |
|---|
| 181 | do K=2,L_LEVELS |
|---|
| 182 | |
|---|
| 183 | DAERO=SUM(TAEROS(K,NW,1:naerkind)) ! aerosol absorption |
|---|
| 184 | |
|---|
| 185 | DCONT = 0.0d0 ! continuum absorption |
|---|
| 186 | |
|---|
| 187 | if(continuum.and.(.not.graybody))then |
|---|
| 188 | ! include continua if necessary |
|---|
| 189 | wn_cont = dble(wnoi(nw)) |
|---|
| 190 | T_cont = dble(TMID(k)) |
|---|
| 191 | do igas=1,ngasmx |
|---|
| 192 | |
|---|
| 193 | if(gfrac(igas).eq.-1)then ! variable |
|---|
| 194 | p_cont = dble(PMID(k)*scalep*QVAR(k)) ! qvar = mol/mol |
|---|
| 195 | else |
|---|
| 196 | p_cont = dble(PMID(k)*scalep*gfrac(igas)*(1.-QVAR(k))) |
|---|
| 197 | endif |
|---|
| 198 | |
|---|
| 199 | dtemp=0.0d0 |
|---|
| 200 | if(igas.eq.igas_N2)then |
|---|
| 201 | |
|---|
| 202 | interm = indi(nw,igas,igas) |
|---|
| 203 | call interpolateN2N2(wn_cont,T_cont,p_cont,dtemp,.false.,interm) |
|---|
| 204 | indi(nw,igas,igas) = interm |
|---|
| 205 | |
|---|
| 206 | elseif(igas.eq.igas_H2)then |
|---|
| 207 | |
|---|
| 208 | ! first do self-induced absorption |
|---|
| 209 | interm = indi(nw,igas,igas) |
|---|
| 210 | call interpolateH2H2(wn_cont,T_cont,p_cont,dtemp,.false.,interm) |
|---|
| 211 | indi(nw,igas,igas) = interm |
|---|
| 212 | |
|---|
| 213 | ! then cross-interactions with other gases |
|---|
| 214 | do jgas=1,ngasmx |
|---|
| 215 | p_cross = dble(PMID(k)*scalep*gfrac(jgas)*(1.-QVAR(k))) |
|---|
| 216 | dtempc = 0.0d0 |
|---|
| 217 | if(jgas.eq.igas_N2)then |
|---|
| 218 | interm = indi(nw,igas,jgas) |
|---|
| 219 | call interpolateN2H2(wn_cont,T_cont,p_cross,p_cont,dtempc,.false.,interm) |
|---|
| 220 | indi(nw,igas,jgas) = interm |
|---|
| 221 | elseif(jgas.eq.igas_CO2)then |
|---|
| 222 | interm = indi(nw,igas,jgas) |
|---|
| 223 | call interpolateCO2H2(wn_cont,T_cont,p_cross,p_cont,dtempc,.false.,interm) |
|---|
| 224 | indi(nw,igas,jgas) = interm |
|---|
| 225 | elseif(jgas.eq.igas_He)then |
|---|
| 226 | interm = indi(nw,igas,jgas) |
|---|
| 227 | call interpolateH2He(wn_cont,T_cont,p_cross,p_cont,dtempc,.false.,interm) |
|---|
| 228 | indi(nw,igas,jgas) = interm |
|---|
| 229 | endif |
|---|
| 230 | dtemp = dtemp + dtempc |
|---|
| 231 | enddo |
|---|
| 232 | |
|---|
| 233 | elseif(igas.eq.igas_CH4)then |
|---|
| 234 | |
|---|
| 235 | ! first do self-induced absorption |
|---|
| 236 | interm = indi(nw,igas,igas) |
|---|
| 237 | call interpolateCH4CH4(wn_cont,T_cont,p_cont,dtemp,.false.,interm) |
|---|
| 238 | indi(nw,igas,igas) = interm |
|---|
| 239 | |
|---|
| 240 | ! then cross-interactions with other gases |
|---|
| 241 | do jgas=1,ngasmx |
|---|
| 242 | p_cross = dble(PMID(k)*scalep*gfrac(jgas)*(1.-QVAR(k))) |
|---|
| 243 | dtempc = 0.0d0 |
|---|
| 244 | if(jgas.eq.igas_H2)then |
|---|
| 245 | interm = indi(nw,igas,jgas) |
|---|
| 246 | call interpolateH2CH4(wn_cont,T_cont,p_cross,p_cont,dtempc,.false.,interm) |
|---|
| 247 | indi(nw,igas,jgas) = interm |
|---|
| 248 | elseif(jgas.eq.igas_CO2)then |
|---|
| 249 | interm = indi(nw,igas,jgas) |
|---|
| 250 | call interpolateCO2CH4(wn_cont,T_cont,p_cross,p_cont,dtempc,.false.,interm) |
|---|
| 251 | indi(nw,igas,jgas) = interm |
|---|
| 252 | elseif(jgas.eq.igas_He)then |
|---|
| 253 | interm = indi(nw,igas,jgas) |
|---|
| 254 | call interpolateHeCH4(wn_cont,T_cont,p_cross,p_cont,dtempc,.false.,interm) |
|---|
| 255 | indi(nw,igas,jgas) = interm |
|---|
| 256 | endif |
|---|
| 257 | dtemp = dtemp + dtempc |
|---|
| 258 | enddo |
|---|
| 259 | |
|---|
| 260 | elseif(igas.eq.igas_H2O.and.T_cont.gt.100.0)then |
|---|
| 261 | ! Compute self and foreign (with air) continuum of H2O |
|---|
| 262 | p_air = dble(PMID(k)*scalep) - p_cont ! note assumes background is air! |
|---|
| 263 | interm = indi(nw,igas,igas) |
|---|
| 264 | call interpolateH2O_self_foreign(wn_cont,T_cont,p_cont,p_air,dtemp,.false.,interm) ! MTCKD v3.3 |
|---|
| 265 | indi(nw,igas,igas) = interm |
|---|
| 266 | |
|---|
| 267 | endif |
|---|
| 268 | |
|---|
| 269 | DCONT = DCONT + dtemp |
|---|
| 270 | |
|---|
| 271 | enddo |
|---|
| 272 | |
|---|
| 273 | ! Oobleck test |
|---|
| 274 | !rho = PMID(k)*scalep / (TMID(k)*286.99) |
|---|
| 275 | !if(WNOI(nw).gt.300.0 .and. WNOI(nw).lt.500.0)then |
|---|
| 276 | ! DCONT = rho * 0.125 * 4.6e-4 |
|---|
| 277 | !elseif(WNOI(nw).gt.500.0 .and. WNOI(nw).lt.700.0)then |
|---|
| 278 | ! DCONT = 1000*dpr(k) * 1.0 * 4.6e-4 / g |
|---|
| 279 | ! DCONT = rho * 1.0 * 4.6e-4 |
|---|
| 280 | !elseif(WNOI(nw).gt.700.0 .and. WNOI(nw).lt.900.0)then |
|---|
| 281 | ! DCONT = rho * 0.125 * 4.6e-4 |
|---|
| 282 | !endif |
|---|
| 283 | |
|---|
| 284 | DCONT = DCONT*dz(k) |
|---|
| 285 | |
|---|
| 286 | endif |
|---|
| 287 | |
|---|
| 288 | do ng=1,L_NGAUSS-1 |
|---|
| 289 | |
|---|
| 290 | ! Now compute TAUGAS |
|---|
| 291 | |
|---|
| 292 | ! Interpolate between water mixing ratios |
|---|
| 293 | ! WRATIO = 0.0 if the requested water amount is equal to, or outside the |
|---|
| 294 | ! the water data range |
|---|
| 295 | |
|---|
| 296 | if(L_REFVAR.eq.1)then ! added by RW for special no variable case |
|---|
| 297 | |
|---|
| 298 | ! JVO 2017 : added tmpk because the repeated calls to gasi/v increased dramatically |
|---|
| 299 | ! the execution time of optci/v -> ~ factor 2 on the whole radiative |
|---|
| 300 | ! transfer on the tested simulations ! |
|---|
| 301 | |
|---|
| 302 | IF (corrk_recombin) THEN ! added by JVO |
|---|
| 303 | tmpk = GASI_RECOMB(MT(K):MT(K)+1,MP(K):MP(K)+1,1,NW,NG) ! contains the mix of recombined species |
|---|
| 304 | ELSE |
|---|
| 305 | tmpk = GASI(MT(K):MT(K)+1,MP(K):MP(K)+1,1,NW,NG) |
|---|
| 306 | ENDIF |
|---|
| 307 | |
|---|
| 308 | KCOEF(1) = tmpk(1,1) ! KCOEF(1) = GASI(MT(K),MP(K),1,NW,NG) |
|---|
| 309 | KCOEF(2) = tmpk(1,2) ! KCOEF(2) = GASI(MT(K),MP(K)+1,1,NW,NG) |
|---|
| 310 | KCOEF(3) = tmpk(2,2) ! KCOEF(3) = GASI(MT(K)+1,MP(K)+1,1,NW,NG) |
|---|
| 311 | KCOEF(4) = tmpk(2,1) ! KCOEF(4) = GASI(MT(K)+1,MP(K),1,NW,NG) |
|---|
| 312 | |
|---|
| 313 | else |
|---|
| 314 | |
|---|
| 315 | IF (corrk_recombin) THEN ! added by JVO |
|---|
| 316 | tmpkvar = GASI_RECOMB(MT(K):MT(K)+1,MP(K):MP(K)+1,NVAR(K):NVAR(K)+1,NW,NG) |
|---|
| 317 | ELSE |
|---|
| 318 | tmpkvar = GASI(MT(K):MT(K)+1,MP(K):MP(K)+1,NVAR(K):NVAR(K)+1,NW,NG) |
|---|
| 319 | ENDIF |
|---|
| 320 | |
|---|
| 321 | KCOEF(1) = tmpkvar(1,1,1) + WRATIO(K) * & |
|---|
| 322 | ( tmpkvar(1,1,2)-tmpkvar(1,1,1) ) |
|---|
| 323 | |
|---|
| 324 | KCOEF(2) = tmpkvar(1,2,1) + WRATIO(K) * & |
|---|
| 325 | ( tmpkvar(1,2,2)-tmpkvar(1,2,1) ) |
|---|
| 326 | |
|---|
| 327 | KCOEF(3) = tmpkvar(2,2,1) + WRATIO(K) * & |
|---|
| 328 | ( tmpkvar(2,2,2)-tmpkvar(2,2,1) ) |
|---|
| 329 | |
|---|
| 330 | KCOEF(4) = tmpkvar(2,1,1) + WRATIO(K) * & |
|---|
| 331 | ( tmpkvar(2,1,2)-tmpkvar(2,1,1) ) |
|---|
| 332 | |
|---|
| 333 | endif |
|---|
| 334 | |
|---|
| 335 | ! Interpolate the gaseous k-coefficients to the requested T,P values |
|---|
| 336 | |
|---|
| 337 | ANS = LKCOEF(K,1)*KCOEF(1) + LKCOEF(K,2)*KCOEF(2) + & |
|---|
| 338 | LKCOEF(K,3)*KCOEF(3) + LKCOEF(K,4)*KCOEF(4) |
|---|
| 339 | |
|---|
| 340 | TAUGAS = U(k)*ANS |
|---|
| 341 | |
|---|
| 342 | TAUGSURF(NW,NG) = TAUGSURF(NW,NG) + TAUGAS + DCONT |
|---|
| 343 | DTAUKI(K,nw,ng) = TAUGAS & |
|---|
| 344 | + DCONT & ! For parameterized continuum absorption |
|---|
| 345 | + DAERO ! For aerosol absorption |
|---|
| 346 | |
|---|
| 347 | end do |
|---|
| 348 | |
|---|
| 349 | ! Now fill in the "clear" part of the spectrum (NG = L_NGAUSS), |
|---|
| 350 | ! which holds continuum opacity only |
|---|
| 351 | |
|---|
| 352 | NG = L_NGAUSS |
|---|
| 353 | DTAUKI(K,nw,ng) = 0.d0 & |
|---|
| 354 | + DCONT & ! For parameterized continuum absorption |
|---|
| 355 | + DAERO ! For aerosol absorption |
|---|
| 356 | |
|---|
| 357 | end do |
|---|
| 358 | end do |
|---|
| 359 | |
|---|
| 360 | !======================================================================= |
|---|
| 361 | ! Now the full treatment for the layers, where besides the opacity |
|---|
| 362 | ! we need to calculate the scattering albedo and asymmetry factors |
|---|
| 363 | |
|---|
| 364 | do iaer=1,naerkind |
|---|
| 365 | DO NW=1,L_NSPECTI |
|---|
| 366 | DO K=2,L_LEVELS |
|---|
| 367 | TAUAEROLK(K,NW,IAER) = TAUAERO(K,IAER)*QSIAER(K,NW,IAER) ! effect of scattering albedo |
|---|
| 368 | ENDDO |
|---|
| 369 | ENDDO |
|---|
| 370 | end do |
|---|
| 371 | |
|---|
| 372 | DO NW=1,L_NSPECTI |
|---|
| 373 | DO L=1,L_NLAYRAD-1 |
|---|
| 374 | K = 2*L+1 |
|---|
| 375 | btemp(L,NW) = SUM(TAUAEROLK(K,NW,1:naerkind)) + SUM(TAUAEROLK(K+1,NW,1:naerkind)) |
|---|
| 376 | END DO ! L vertical loop |
|---|
| 377 | |
|---|
| 378 | ! Last level |
|---|
| 379 | L = L_NLAYRAD |
|---|
| 380 | K = 2*L+1 |
|---|
| 381 | btemp(L,NW) = SUM(TAUAEROLK(K,NW,1:naerkind)) |
|---|
| 382 | |
|---|
| 383 | END DO ! NW spectral loop |
|---|
| 384 | |
|---|
| 385 | |
|---|
| 386 | DO NW=1,L_NSPECTI |
|---|
| 387 | NG = L_NGAUSS |
|---|
| 388 | DO L=1,L_NLAYRAD-1 |
|---|
| 389 | |
|---|
| 390 | K = 2*L+1 |
|---|
| 391 | DTAUI(L,nw,ng) = DTAUKI(K,NW,NG) + DTAUKI(K+1,NW,NG)! + 1.e-50 |
|---|
| 392 | |
|---|
| 393 | atemp = 0. |
|---|
| 394 | if(DTAUI(L,NW,NG) .GT. 1.0D-9) then |
|---|
| 395 | do iaer=1,naerkind |
|---|
| 396 | atemp = atemp + & |
|---|
| 397 | GIAER(K,NW,IAER) * TAUAEROLK(K,NW,IAER) + & |
|---|
| 398 | GIAER(K+1,NW,IAER) * TAUAEROLK(K+1,NW,IAER) |
|---|
| 399 | end do |
|---|
| 400 | WBARI(L,nw,ng) = btemp(L,nw) / DTAUI(L,NW,NG) |
|---|
| 401 | else |
|---|
| 402 | WBARI(L,nw,ng) = 0.0D0 |
|---|
| 403 | DTAUI(L,NW,NG) = 1.0D-9 |
|---|
| 404 | endif |
|---|
| 405 | |
|---|
| 406 | if(btemp(L,nw) .GT. 0.0d0) then |
|---|
| 407 | cosbi(L,NW,NG) = atemp/btemp(L,nw) |
|---|
| 408 | else |
|---|
| 409 | cosbi(L,NW,NG) = 0.0D0 |
|---|
| 410 | end if |
|---|
| 411 | |
|---|
| 412 | END DO ! L vertical loop |
|---|
| 413 | |
|---|
| 414 | ! Last level |
|---|
| 415 | |
|---|
| 416 | L = L_NLAYRAD |
|---|
| 417 | K = 2*L+1 |
|---|
| 418 | DTAUI(L,nw,ng) = DTAUKI(K,NW,NG) ! + 1.e-50 |
|---|
| 419 | |
|---|
| 420 | atemp = 0. |
|---|
| 421 | if(DTAUI(L,NW,NG) .GT. 1.0D-9) then |
|---|
| 422 | do iaer=1,naerkind |
|---|
| 423 | atemp = atemp + GIAER(K,NW,IAER) * TAUAEROLK(K,NW,IAER) |
|---|
| 424 | end do |
|---|
| 425 | WBARI(L,nw,ng) = btemp(L,nw) / DTAUI(L,NW,NG) |
|---|
| 426 | else |
|---|
| 427 | WBARI(L,nw,ng) = 0.0D0 |
|---|
| 428 | DTAUI(L,NW,NG) = 1.0D-9 |
|---|
| 429 | endif |
|---|
| 430 | |
|---|
| 431 | if(btemp(L,nw) .GT. 0.0d0) then |
|---|
| 432 | cosbi(L,NW,NG) = atemp/btemp(L,nw) |
|---|
| 433 | else |
|---|
| 434 | cosbi(L,NW,NG) = 0.0D0 |
|---|
| 435 | end if |
|---|
| 436 | |
|---|
| 437 | |
|---|
| 438 | ! Now the other Gauss points, if needed. |
|---|
| 439 | |
|---|
| 440 | DO NG=1,L_NGAUSS-1 |
|---|
| 441 | IF(TAUGSURF(NW,NG) .gt. TLIMIT) THEN |
|---|
| 442 | |
|---|
| 443 | DO L=1,L_NLAYRAD-1 |
|---|
| 444 | K = 2*L+1 |
|---|
| 445 | DTAUI(L,nw,ng) = DTAUKI(K,NW,NG)+DTAUKI(K+1,NW,NG)! + 1.e-50 |
|---|
| 446 | |
|---|
| 447 | if(DTAUI(L,NW,NG) .GT. 1.0D-9) then |
|---|
| 448 | |
|---|
| 449 | WBARI(L,nw,ng) = btemp(L,nw) / DTAUI(L,NW,NG) |
|---|
| 450 | |
|---|
| 451 | else |
|---|
| 452 | WBARI(L,nw,ng) = 0.0D0 |
|---|
| 453 | DTAUI(L,NW,NG) = 1.0D-9 |
|---|
| 454 | endif |
|---|
| 455 | |
|---|
| 456 | cosbi(L,NW,NG) = cosbi(L,NW,L_NGAUSS) |
|---|
| 457 | END DO ! L vertical loop |
|---|
| 458 | |
|---|
| 459 | ! Last level |
|---|
| 460 | L = L_NLAYRAD |
|---|
| 461 | K = 2*L+1 |
|---|
| 462 | DTAUI(L,nw,ng) = DTAUKI(K,NW,NG)! + 1.e-50 |
|---|
| 463 | |
|---|
| 464 | if(DTAUI(L,NW,NG) .GT. 1.0D-9) then |
|---|
| 465 | |
|---|
| 466 | WBARI(L,nw,ng) = btemp(L,nw) / DTAUI(L,NW,NG) |
|---|
| 467 | |
|---|
| 468 | else |
|---|
| 469 | WBARI(L,nw,ng) = 0.0D0 |
|---|
| 470 | DTAUI(L,NW,NG) = 1.0D-9 |
|---|
| 471 | endif |
|---|
| 472 | |
|---|
| 473 | cosbi(L,NW,NG) = cosbi(L,NW,L_NGAUSS) |
|---|
| 474 | |
|---|
| 475 | END IF |
|---|
| 476 | |
|---|
| 477 | END DO ! NG Gauss loop |
|---|
| 478 | END DO ! NW spectral loop |
|---|
| 479 | |
|---|
| 480 | ! Total extinction optical depths |
|---|
| 481 | |
|---|
| 482 | DO NG=1,L_NGAUSS ! full gauss loop |
|---|
| 483 | DO NW=1,L_NSPECTI |
|---|
| 484 | TAUCUMI(1,NW,NG)=0.0D0 |
|---|
| 485 | DO K=2,L_LEVELS |
|---|
| 486 | TAUCUMI(K,NW,NG)=TAUCUMI(K-1,NW,NG)+DTAUKI(K,NW,NG) |
|---|
| 487 | END DO |
|---|
| 488 | END DO ! end full gauss loop |
|---|
| 489 | END DO |
|---|
| 490 | |
|---|
| 491 | ! be aware when comparing with textbook results |
|---|
| 492 | ! (e.g. Pierrehumbert p. 218) that |
|---|
| 493 | ! taucumi does not take the <cos theta>=0.5 factor into |
|---|
| 494 | ! account. It is the optical depth for a vertically |
|---|
| 495 | ! ascending ray with angle theta = 0. |
|---|
| 496 | |
|---|
| 497 | !open(127,file='taucum.out') |
|---|
| 498 | !do nw=1,L_NSPECTI |
|---|
| 499 | ! write(127,*) taucumi(L_LEVELS,nw,L_NGAUSS) |
|---|
| 500 | !enddo |
|---|
| 501 | !close(127) |
|---|
| 502 | |
|---|
| 503 | ! print*,'WBARI' |
|---|
| 504 | ! print*,WBARI |
|---|
| 505 | ! print*,'DTAUI' |
|---|
| 506 | ! print*,DTAUI |
|---|
| 507 | ! call abort |
|---|
| 508 | |
|---|
| 509 | end subroutine optci |
|---|
| 510 | |
|---|
| 511 | END MODULE optci_mod |
|---|
| 512 | |
|---|
