| 1 | subroutine aeroptproperties(ngrid,nlayer,reffrad,nueffrad, & |
|---|
| 2 | QVISsQREF3d,omegaVIS3d,gVIS3d, & |
|---|
| 3 | QIRsQREF3d,omegaIR3d,gIR3d, & |
|---|
| 4 | QREFvis3d,QREFir3d) |
|---|
| 5 | |
|---|
| 6 | use radinc_h, only: L_NSPECTI,L_NSPECTV,naerkind,nsizemax |
|---|
| 7 | use radcommon_h, only: QVISsQREF,omegavis,gvis,QIRsQREF,omegair,gir |
|---|
| 8 | use radcommon_h, only: radiustab,nsize,qrefvis,qrefir |
|---|
| 9 | |
|---|
| 10 | implicit none |
|---|
| 11 | |
|---|
| 12 | !================================================================== |
|---|
| 13 | ! |
|---|
| 14 | ! Purpose |
|---|
| 15 | ! ------- |
|---|
| 16 | ! Compute the scattering parameters in each grid |
|---|
| 17 | ! box, depending on aerosol grain sizes. |
|---|
| 18 | ! |
|---|
| 19 | ! Notes |
|---|
| 20 | ! ----- |
|---|
| 21 | ! Don't forget to set the value of varyingnueff below; If |
|---|
| 22 | ! the effective variance of the distribution for the given |
|---|
| 23 | ! aerosol is considered homogeneous in the atmosphere, please |
|---|
| 24 | ! set varyingnueff(iaer) to .false. Resulting computational |
|---|
| 25 | ! time will be much better. |
|---|
| 26 | ! |
|---|
| 27 | ! Authors |
|---|
| 28 | ! ------- |
|---|
| 29 | ! J.-B. Madeleine, F. Montmessin |
|---|
| 30 | ! Slightly modified and converted to F90 by R. Wordsworth (2009) |
|---|
| 31 | ! Varying nueff section removed by R. Wordsworth for simplicity |
|---|
| 32 | ! |
|---|
| 33 | !================================================================== |
|---|
| 34 | |
|---|
| 35 | #include "dimensions.h" |
|---|
| 36 | #include "dimphys.h" |
|---|
| 37 | #include "callkeys.h" |
|---|
| 38 | |
|---|
| 39 | ! Local variables |
|---|
| 40 | ! --------------- |
|---|
| 41 | |
|---|
| 42 | ! ============================================================= |
|---|
| 43 | LOGICAL, PARAMETER :: varyingnueff(naerkind) = .false. |
|---|
| 44 | ! ============================================================= |
|---|
| 45 | |
|---|
| 46 | ! Radius axis used for integration |
|---|
| 47 | DOUBLE PRECISION :: radiusint(nsizemax+1) |
|---|
| 48 | ! Min. and max radii of the interpolation grid (in METERS) |
|---|
| 49 | REAL, PARAMETER :: refftabmin = 2e-8 |
|---|
| 50 | ! REAL, PARAMETER :: refftabmax = 35e-6 |
|---|
| 51 | REAL, PARAMETER :: refftabmax = 1e-3 ! CHANGED BY RDW |
|---|
| 52 | ! Log of the min and max variance of the interpolation grid |
|---|
| 53 | REAL, PARAMETER :: nuefftabmin = -4.6 |
|---|
| 54 | REAL, PARAMETER :: nuefftabmax = 0. |
|---|
| 55 | ! Number of effective radii of the interpolation grid |
|---|
| 56 | INTEGER, PARAMETER :: refftabsize = 200 |
|---|
| 57 | ! Number of effective variances of the interpolation grid |
|---|
| 58 | ! INTEGER, PARAMETER :: nuefftabsize = 100 |
|---|
| 59 | INTEGER, PARAMETER :: nuefftabsize = 1 ! CHANGED BY RDW |
|---|
| 60 | ! Interpolation grid indices (reff,nueff) |
|---|
| 61 | INTEGER :: grid_i,grid_j |
|---|
| 62 | ! Volume ratio of the look-up table (different in VIS and IR) |
|---|
| 63 | DOUBLE PRECISION :: vrat |
|---|
| 64 | ! r_g and sigma_g for the log-normal distribution |
|---|
| 65 | ! as defined by [hansen_1974] |
|---|
| 66 | REAL :: r_g,sigma_g |
|---|
| 67 | ! Error function used for integration |
|---|
| 68 | DOUBLE PRECISION :: derf |
|---|
| 69 | ! Density function f(x)dx of the log-normal distribution |
|---|
| 70 | REAL :: dfi |
|---|
| 71 | DOUBLE PRECISION :: dfi_tmp(nsizemax+1) |
|---|
| 72 | ! Intermediate variable |
|---|
| 73 | REAL :: var_tmp,var3d_tmp(ngridmx,nlayermx) |
|---|
| 74 | ! Bilinear interpolation factors |
|---|
| 75 | REAL :: kx,ky,k1,k2,k3,k4 |
|---|
| 76 | ! Indices |
|---|
| 77 | INTEGER :: i,j,k,l,m,iaer,idomain |
|---|
| 78 | INTEGER :: ig,lg,chg |
|---|
| 79 | |
|---|
| 80 | ! Local saved variables |
|---|
| 81 | ! --------------------- |
|---|
| 82 | |
|---|
| 83 | ! Radius axis of the interpolation grid |
|---|
| 84 | DOUBLE PRECISION,SAVE :: refftab(refftabsize) |
|---|
| 85 | ! Variance axis of the interpolation grid |
|---|
| 86 | DOUBLE PRECISION,SAVE :: nuefftab(nuefftabsize) |
|---|
| 87 | ! Volume ratio of the grid |
|---|
| 88 | DOUBLE PRECISION,SAVE :: logvratgrid,vratgrid |
|---|
| 89 | ! Grid used to remember which calculation is done |
|---|
| 90 | LOGICAL,SAVE :: checkgrid(refftabsize,nuefftabsize,naerkind,2) & |
|---|
| 91 | = .false. |
|---|
| 92 | ! Optical properties of the grid (VISIBLE) |
|---|
| 93 | REAL,SAVE :: epVISgrid(refftabsize,nuefftabsize,L_NSPECTV,naerkind) |
|---|
| 94 | REAL,SAVE :: omegVISgrid(refftabsize,nuefftabsize,L_NSPECTV,naerkind) |
|---|
| 95 | REAL,SAVE :: gVISgrid(refftabsize,nuefftabsize,L_NSPECTV,naerkind) |
|---|
| 96 | ! Optical properties of the grid (INFRARED) |
|---|
| 97 | REAL,SAVE :: epIRgrid(refftabsize,nuefftabsize,L_NSPECTI,naerkind) |
|---|
| 98 | REAL,SAVE :: omegIRgrid(refftabsize,nuefftabsize,L_NSPECTI,naerkind) |
|---|
| 99 | REAL,SAVE :: gIRgrid(refftabsize,nuefftabsize,L_NSPECTI,naerkind) |
|---|
| 100 | ! Optical properties of the grid (REFERENCE WAVELENGTHS) |
|---|
| 101 | REAL,SAVE :: eprefVISgrid(refftabsize,nuefftabsize,naerkind) |
|---|
| 102 | REAL,SAVE :: eprefIRgrid(refftabsize,nuefftabsize,naerkind) |
|---|
| 103 | ! Firstcall |
|---|
| 104 | LOGICAL,SAVE :: firstcall = .true. |
|---|
| 105 | |
|---|
| 106 | ! Inputs |
|---|
| 107 | ! ------ |
|---|
| 108 | |
|---|
| 109 | INTEGER :: ngrid,nlayer |
|---|
| 110 | ! Aerosol effective radius used for radiative transfer (meter) |
|---|
| 111 | REAL :: reffrad(ngridmx,nlayermx,naerkind) |
|---|
| 112 | ! Aerosol effective variance used for radiative transfer (n.u.) |
|---|
| 113 | REAL :: nueffrad(ngridmx,nlayermx,naerkind) |
|---|
| 114 | |
|---|
| 115 | ! Outputs |
|---|
| 116 | ! ------- |
|---|
| 117 | |
|---|
| 118 | REAL :: QVISsQREF3d(ngridmx,nlayermx,L_NSPECTV,naerkind) |
|---|
| 119 | REAL :: omegaVIS3d(ngridmx,nlayermx,L_NSPECTV,naerkind) |
|---|
| 120 | REAL :: gVIS3d(ngridmx,nlayermx,L_NSPECTV,naerkind) |
|---|
| 121 | |
|---|
| 122 | REAL :: QIRsQREF3d(ngridmx,nlayermx,L_NSPECTI,naerkind) |
|---|
| 123 | REAL :: omegaIR3d(ngridmx,nlayermx,L_NSPECTI,naerkind) |
|---|
| 124 | REAL :: gIR3d(ngridmx,nlayermx,L_NSPECTI,naerkind) |
|---|
| 125 | |
|---|
| 126 | REAL :: QREFvis3d(ngridmx,nlayermx,naerkind) |
|---|
| 127 | REAL :: QREFir3d(ngridmx,nlayermx,naerkind) |
|---|
| 128 | |
|---|
| 129 | DO iaer = 1, naerkind ! Loop on aerosol kind |
|---|
| 130 | |
|---|
| 131 | IF ( (nsize(iaer,1).EQ.1).AND.(nsize(iaer,2).EQ.1) ) THEN |
|---|
| 132 | |
|---|
| 133 | !================================================================== |
|---|
| 134 | ! If there is one single particle size, optical |
|---|
| 135 | ! properties of the considered aerosol are homogeneous |
|---|
| 136 | DO lg = 1, nlayer |
|---|
| 137 | DO ig = 1, ngrid |
|---|
| 138 | DO chg = 1, L_NSPECTV |
|---|
| 139 | QVISsQREF3d(ig,lg,chg,iaer)=QVISsQREF(chg,iaer,1) |
|---|
| 140 | omegaVIS3d(ig,lg,chg,iaer)=omegaVIS(chg,iaer,1) |
|---|
| 141 | gVIS3d(ig,lg,chg,iaer)=gVIS(chg,iaer,1) |
|---|
| 142 | ENDDO |
|---|
| 143 | DO chg = 1, L_NSPECTI |
|---|
| 144 | QIRsQREF3d(ig,lg,chg,iaer)=QIRsQREF(chg,iaer,1) |
|---|
| 145 | omegaIR3d(ig,lg,chg,iaer)=omegaIR(chg,iaer,1) |
|---|
| 146 | gIR3d(ig,lg,chg,iaer)=gIR(chg,iaer,1) |
|---|
| 147 | ENDDO |
|---|
| 148 | QREFvis3d(ig,lg,iaer)=QREFvis(iaer,1) |
|---|
| 149 | QREFir3d(ig,lg,iaer)=QREFir(iaer,1) |
|---|
| 150 | ENDDO |
|---|
| 151 | ENDDO |
|---|
| 152 | |
|---|
| 153 | if (firstcall) then |
|---|
| 154 | print*,'Optical properties of the aerosol are homogenous for:' |
|---|
| 155 | print*,'iaer = ',iaer |
|---|
| 156 | endif |
|---|
| 157 | |
|---|
| 158 | ELSE ! Varying effective radius and variance |
|---|
| 159 | DO idomain = 1, 2 ! Loop on visible or infrared channel |
|---|
| 160 | !================================================================== |
|---|
| 161 | ! 1. Creating the effective radius and variance grid |
|---|
| 162 | ! -------------------------------------------------- |
|---|
| 163 | IF (firstcall) THEN |
|---|
| 164 | ! 1.1 Effective radius |
|---|
| 165 | refftab(1) = refftabmin |
|---|
| 166 | refftab(refftabsize) = refftabmax |
|---|
| 167 | |
|---|
| 168 | logvratgrid = log(refftabmax/refftabmin) / & |
|---|
| 169 | float(refftabsize-1)*3. |
|---|
| 170 | vratgrid = exp(logvratgrid) |
|---|
| 171 | |
|---|
| 172 | do i = 2, refftabsize-1 |
|---|
| 173 | refftab(i) = refftab(i-1)*vratgrid**(1./3.) |
|---|
| 174 | enddo |
|---|
| 175 | |
|---|
| 176 | ! 1.2 Effective variance |
|---|
| 177 | do i = 0, nuefftabsize-1 |
|---|
| 178 | nuefftab(i+1) = exp( nuefftabmin + & |
|---|
| 179 | i*(nuefftabmax-nuefftabmin)/(nuefftabsize-1) ) |
|---|
| 180 | enddo |
|---|
| 181 | firstcall = .false. |
|---|
| 182 | ENDIF |
|---|
| 183 | |
|---|
| 184 | |
|---|
| 185 | |
|---|
| 186 | ! 2. Compute the scattering parameters using linear |
|---|
| 187 | ! interpolation over grain sizes and constant nueff |
|---|
| 188 | ! --------------------------------------------------- |
|---|
| 189 | |
|---|
| 190 | ! 2.1 Initialization |
|---|
| 191 | |
|---|
| 192 | vrat = log(radiustab(iaer,idomain,nsize(iaer,idomain)) / & |
|---|
| 193 | radiustab(iaer,idomain,1)) / & |
|---|
| 194 | float(nsize(iaer,idomain)-1)*3. |
|---|
| 195 | vrat = exp(vrat) |
|---|
| 196 | |
|---|
| 197 | radiusint(1) = 1.e-9 |
|---|
| 198 | DO i = 2,nsize(iaer,idomain) |
|---|
| 199 | radiusint(i) = ( (2.*vrat) / (vrat+1.) )**(1./3.) * & |
|---|
| 200 | radiustab(iaer,idomain,i-1) |
|---|
| 201 | ENDDO |
|---|
| 202 | radiusint(nsize(iaer,idomain)+1) = 1.e-2 |
|---|
| 203 | |
|---|
| 204 | DO lg = 1,nlayer |
|---|
| 205 | DO ig = 1,ngrid |
|---|
| 206 | ! 2.1 Effective radius index and kx calculation |
|---|
| 207 | var_tmp=reffrad(ig,lg,iaer)/refftabmin |
|---|
| 208 | var_tmp=log(var_tmp)*3. |
|---|
| 209 | var_tmp=var_tmp/logvratgrid+1. |
|---|
| 210 | grid_i=floor(var_tmp) |
|---|
| 211 | IF (grid_i.GE.refftabsize) THEN |
|---|
| 212 | WRITE(*,*) 'Warning: Aerosol particle size in grid box #' |
|---|
| 213 | WRITE(*,*) ig,' is too large to be used by the ' |
|---|
| 214 | WRITE(*,*) 'radiative transfer; please extend the ' |
|---|
| 215 | WRITE(*,*) 'interpolation grid to larger sizes.' |
|---|
| 216 | |
|---|
| 217 | grid_i=refftabsize-1 |
|---|
| 218 | kx = 1. |
|---|
| 219 | ELSEIF (grid_i.LT.1) THEN |
|---|
| 220 | WRITE(*,*) 'Warning: Aerosol particle size in grid box #' |
|---|
| 221 | WRITE(*,*) ig,' is too small to be used by the ' |
|---|
| 222 | WRITE(*,*) 'radiative transfer; please extend the ' |
|---|
| 223 | WRITE(*,*) 'interpolation grid to smaller sizes.' |
|---|
| 224 | grid_i=1 |
|---|
| 225 | kx = 0. |
|---|
| 226 | ELSE |
|---|
| 227 | kx = ( reffrad(ig,lg,iaer)-refftab(grid_i) ) / & |
|---|
| 228 | ( refftab(grid_i+1)-refftab(grid_i) ) |
|---|
| 229 | ENDIF |
|---|
| 230 | ! 2.3 Integration |
|---|
| 231 | DO j=grid_i,grid_i+1 |
|---|
| 232 | ! 2.3.1 Check if the calculation has been completed |
|---|
| 233 | IF (.NOT.checkgrid(j,1,iaer,idomain)) THEN |
|---|
| 234 | ! 2.3.2 Compute r_g and sigma_g for the log-normal |
|---|
| 235 | ! distribution as defined by [hansen_1974], "Light |
|---|
| 236 | ! scattering in planetary atmospheres", Space |
|---|
| 237 | ! Science Reviews 16 527-610, p558 |
|---|
| 238 | sigma_g = log(1.+nueffrad(1,1,iaer)) |
|---|
| 239 | r_g = exp(2.5*sigma_g) |
|---|
| 240 | sigma_g = sqrt(sigma_g) |
|---|
| 241 | r_g = refftab(j) / r_g |
|---|
| 242 | IF (idomain.EQ.1) THEN ! VISIBLE DOMAIN ----------- |
|---|
| 243 | ! 2.3.3.vis Initialization |
|---|
| 244 | epVISgrid(j,1,:,iaer)=0. |
|---|
| 245 | omegVISgrid(j,1,:,iaer)=0. |
|---|
| 246 | gVISgrid(j,1,:,iaer)=0. |
|---|
| 247 | eprefVISgrid(j,1,iaer)=0. |
|---|
| 248 | ! 2.3.4.vis Log-normal distribution |
|---|
| 249 | DO l=1,nsize(iaer,idomain)+1 |
|---|
| 250 | dfi_tmp(l) = log(radiusint(l)/r_g) / & |
|---|
| 251 | sqrt(2.)/sigma_g |
|---|
| 252 | ENDDO |
|---|
| 253 | DO l=1,nsize(iaer,idomain) |
|---|
| 254 | dfi = 0.5*( derf(dfi_tmp(l+1)) - & |
|---|
| 255 | derf(dfi_tmp(l)) ) |
|---|
| 256 | DO m=1,L_NSPECTV |
|---|
| 257 | epVISgrid(j,1,m,iaer) = & |
|---|
| 258 | epVISgrid(j,1,m,iaer) & |
|---|
| 259 | + QVISsQREF(m,iaer,l)*dfi |
|---|
| 260 | omegVISgrid(j,1,m,iaer) = & |
|---|
| 261 | omegVISgrid(j,1,m,iaer) & |
|---|
| 262 | + omegaVIS(m,iaer,l)*dfi |
|---|
| 263 | gVISgrid(j,1,m,iaer) = & |
|---|
| 264 | gVISgrid(j,1,m,iaer) & |
|---|
| 265 | + gVIS(m,iaer,l)*dfi |
|---|
| 266 | ENDDO !L_NSPECTV |
|---|
| 267 | eprefVISgrid(j,1,iaer) = & |
|---|
| 268 | eprefVISgrid(j,1,iaer) & |
|---|
| 269 | + QREFvis(iaer,l)*dfi |
|---|
| 270 | ENDDO !nsize |
|---|
| 271 | ELSE ! INFRARED DOMAIN ---------- |
|---|
| 272 | ! 2.3.3.ir Initialization |
|---|
| 273 | epIRgrid(j,1,:,iaer)=0. |
|---|
| 274 | omegIRgrid(j,1,:,iaer)=0. |
|---|
| 275 | gIRgrid(j,1,:,iaer)=0. |
|---|
| 276 | eprefIRgrid(j,1,iaer)=0. |
|---|
| 277 | ! 2.3.4.ir Log-normal distribution |
|---|
| 278 | DO l=1,nsize(iaer,idomain)+1 |
|---|
| 279 | dfi_tmp(l) = log(radiusint(l)/r_g) / & |
|---|
| 280 | sqrt(2.)/sigma_g |
|---|
| 281 | ENDDO |
|---|
| 282 | DO l=1,nsize(iaer,idomain) |
|---|
| 283 | dfi = 0.5*( derf(dfi_tmp(l+1)) - & |
|---|
| 284 | derf(dfi_tmp(l)) ) |
|---|
| 285 | DO m=1,L_NSPECTI |
|---|
| 286 | epIRgrid(j,1,m,iaer) = & |
|---|
| 287 | epIRgrid(j,1,m,iaer) & |
|---|
| 288 | + QIRsQREF(m,iaer,l)*dfi |
|---|
| 289 | omegIRgrid(j,1,m,iaer) = & |
|---|
| 290 | omegIRgrid(j,1,m,iaer) & |
|---|
| 291 | + omegaIR(m,iaer,l)*dfi |
|---|
| 292 | gIRgrid(j,1,m,iaer) = & |
|---|
| 293 | gIRgrid(j,1,m,iaer) & |
|---|
| 294 | + gIR(m,iaer,l)*dfi |
|---|
| 295 | ENDDO !L_NSPECTI |
|---|
| 296 | eprefIRgrid(j,1,iaer) = & |
|---|
| 297 | eprefIRgrid(j,1,iaer) & |
|---|
| 298 | + QREFir(iaer,l)*dfi |
|---|
| 299 | ENDDO !nsize |
|---|
| 300 | ENDIF ! -------------------------- |
|---|
| 301 | checkgrid(j,1,iaer,idomain) = .true. |
|---|
| 302 | ENDIF !checkgrid |
|---|
| 303 | ENDDO !grid_i |
|---|
| 304 | ! 2.4 Linear interpolation |
|---|
| 305 | k1 = (1-kx) |
|---|
| 306 | k2 = kx |
|---|
| 307 | IF (idomain.EQ.1) THEN ! VISIBLE ------------------------ |
|---|
| 308 | DO m=1,L_NSPECTV |
|---|
| 309 | QVISsQREF3d(ig,lg,m,iaer) = & |
|---|
| 310 | k1*epVISgrid(grid_i,1,m,iaer) + & |
|---|
| 311 | k2*epVISgrid(grid_i+1,1,m,iaer) |
|---|
| 312 | omegaVIS3d(ig,lg,m,iaer) = & |
|---|
| 313 | k1*omegVISgrid(grid_i,1,m,iaer) + & |
|---|
| 314 | k2*omegVISgrid(grid_i+1,1,m,iaer) |
|---|
| 315 | gVIS3d(ig,lg,m,iaer) = & |
|---|
| 316 | k1*gVISgrid(grid_i,1,m,iaer) + & |
|---|
| 317 | k2*gVISgrid(grid_i+1,1,m,iaer) |
|---|
| 318 | ENDDO !L_NSPECTV |
|---|
| 319 | QREFvis3d(ig,lg,iaer) = & |
|---|
| 320 | k1*eprefVISgrid(grid_i,1,iaer) + & |
|---|
| 321 | k2*eprefVISgrid(grid_i+1,1,iaer) |
|---|
| 322 | ELSE ! INFRARED ----------------------- |
|---|
| 323 | DO m=1,L_NSPECTI |
|---|
| 324 | QIRsQREF3d(ig,lg,m,iaer) = & |
|---|
| 325 | k1*epIRgrid(grid_i,1,m,iaer) + & |
|---|
| 326 | k2*epIRgrid(grid_i+1,1,m,iaer) |
|---|
| 327 | omegaIR3d(ig,lg,m,iaer) = & |
|---|
| 328 | k1*omegIRgrid(grid_i,1,m,iaer) + & |
|---|
| 329 | k2*omegIRgrid(grid_i+1,1,m,iaer) |
|---|
| 330 | gIR3d(ig,lg,m,iaer) = & |
|---|
| 331 | k1*gIRgrid(grid_i,1,m,iaer) + & |
|---|
| 332 | k2*gIRgrid(grid_i+1,1,m,iaer) |
|---|
| 333 | ENDDO !L_NSPECTI |
|---|
| 334 | QREFir3d(ig,lg,iaer) = & |
|---|
| 335 | k1*eprefIRgrid(grid_i,1,iaer) + & |
|---|
| 336 | k2*eprefIRgrid(grid_i+1,1,iaer) |
|---|
| 337 | ENDIF ! -------------------------------- |
|---|
| 338 | ENDDO !nlayermx |
|---|
| 339 | ENDDO !ngridmx |
|---|
| 340 | |
|---|
| 341 | ENDDO ! idomain |
|---|
| 342 | |
|---|
| 343 | |
|---|
| 344 | ENDIF ! nsize = 1 |
|---|
| 345 | ENDDO ! iaer (loop on aerosol kind) |
|---|
| 346 | |
|---|
| 347 | ! open(116,file='QIRsQREF3dO.dat') |
|---|
| 348 | ! write(116,*) QIRsQREF3d |
|---|
| 349 | ! close(116) |
|---|
| 350 | ! open(117,file='omegaIR3dO.dat') |
|---|
| 351 | ! write(117,*) omegaIR3d |
|---|
| 352 | ! close(117) |
|---|
| 353 | ! open(118,file='gIR3dO.dat') |
|---|
| 354 | ! write(118,*) gIR3d |
|---|
| 355 | ! close(118) |
|---|
| 356 | ! stop |
|---|
| 357 | |
|---|
| 358 | RETURN |
|---|
| 359 | END subroutine aeroptproperties |
|---|
