| 1 | SUBROUTINE mass_redistribution(ngrid,nlayer,nq,ptimestep, & |
|---|
| 2 | rnat,pcapcal,pplay,pplev,pt,ptsrf,pq,pqs, & |
|---|
| 3 | pu,pv,pdt,pdtsrf,pdq,pdu,pdv,pdmassmr, & |
|---|
| 4 | pdtmr,pdtsrfmr,pdpsrfmr,pdumr,pdvmr,pdqmr,pdqsmr) |
|---|
| 5 | |
|---|
| 6 | USE watercommon_h, Only: Tsat_water,RLVTT |
|---|
| 7 | use surfdat_h |
|---|
| 8 | use radcommon_h, only: glat |
|---|
| 9 | USE tracer_h |
|---|
| 10 | USE planete_mod, only: bp |
|---|
| 11 | use comcstfi_mod, only: g |
|---|
| 12 | USE callkeys_mod, ONLY: water |
|---|
| 13 | |
|---|
| 14 | IMPLICIT NONE |
|---|
| 15 | !======================================================================= |
|---|
| 16 | ! subject: |
|---|
| 17 | ! -------- |
|---|
| 18 | ! Mass and momentum fluxes through sigma levels as the surface pressure is modified are also taken into account |
|---|
| 19 | ! |
|---|
| 20 | ! author: Jeremy Leconte 2012 (from F.Forget 1998) |
|---|
| 21 | ! ------ |
|---|
| 22 | ! |
|---|
| 23 | ! input: |
|---|
| 24 | ! ----- |
|---|
| 25 | ! ngrid nombre de points de verticales |
|---|
| 26 | ! (toutes les boucles de la physique sont au |
|---|
| 27 | ! moins vectorisees sur ngrid) |
|---|
| 28 | ! nlayer nombre de couches |
|---|
| 29 | ! pplay(ngrid,nlayer) Pressure levels |
|---|
| 30 | ! pplev(ngrid,nlayer+1) Pressure levels |
|---|
| 31 | ! nq Number of tracers |
|---|
| 32 | ! |
|---|
| 33 | ! pt(ngrid,nlayer) temperature (en K) |
|---|
| 34 | ! pq(ngrid,nlayer,nq) tracer specific concentration (kg/kg of air) |
|---|
| 35 | ! pu,pv (ngrid,nlayer) wind velocity (m/s) |
|---|
| 36 | ! |
|---|
| 37 | ! |
|---|
| 38 | ! pdX physical tendency of X before mass redistribution |
|---|
| 39 | ! |
|---|
| 40 | ! pdmassmr air Mass added to the atmosphere in each layer (kg/m2/s) |
|---|
| 41 | ! |
|---|
| 42 | ! output: |
|---|
| 43 | ! ------- |
|---|
| 44 | ! |
|---|
| 45 | ! pdXmr(ngrid) physical tendency of X after mass redistribution |
|---|
| 46 | ! |
|---|
| 47 | ! |
|---|
| 48 | ! |
|---|
| 49 | !======================================================================= |
|---|
| 50 | ! |
|---|
| 51 | ! 0. Declarations : |
|---|
| 52 | ! ------------------ |
|---|
| 53 | |
|---|
| 54 | !----------------------------------------------------------------------- |
|---|
| 55 | ! Arguments : |
|---|
| 56 | ! --------- |
|---|
| 57 | INTEGER ngrid, nlayer, nq |
|---|
| 58 | REAL ptimestep |
|---|
| 59 | REAL pcapcal(ngrid) |
|---|
| 60 | INTEGER rnat(ngrid) |
|---|
| 61 | REAL pplay(ngrid,nlayer),pplev(ngrid,nlayer+1) |
|---|
| 62 | REAL pt(ngrid,nlayer),pdt(ngrid,nlayer) |
|---|
| 63 | REAL ptsrf(ngrid),pdtsrf(ngrid) |
|---|
| 64 | REAL pdtmr(ngrid,nlayer) |
|---|
| 65 | REAL pu(ngrid,nlayer) , pv(ngrid,nlayer) |
|---|
| 66 | REAL pdu(ngrid,nlayer) , pdv(ngrid,nlayer) |
|---|
| 67 | REAL pdmassmr(ngrid,nlayer) |
|---|
| 68 | REAL pdumr(ngrid,nlayer) , pdvmr(ngrid,nlayer) |
|---|
| 69 | REAL pq(ngrid,nlayer,nq),pdq(ngrid,nlayer,nq) |
|---|
| 70 | REAL pqs(ngrid,nq) |
|---|
| 71 | REAL pdqmr(ngrid,nlayer,nq),pdqsmr(ngrid,nq) |
|---|
| 72 | REAL pdpsrfmr(ngrid),pdtsrfmr(ngrid) |
|---|
| 73 | ! |
|---|
| 74 | ! Local variables : |
|---|
| 75 | ! ----------------- |
|---|
| 76 | |
|---|
| 77 | ! Boiling/sublimation |
|---|
| 78 | REAL Tsat(ngrid),zmassboil(ngrid) |
|---|
| 79 | |
|---|
| 80 | ! vertical reorganization of sigma levels |
|---|
| 81 | REAL zzu(nlayer),zzv(nlayer) |
|---|
| 82 | REAL zzq(nlayer,nq),zzt(nlayer) |
|---|
| 83 | ! Dummy variables |
|---|
| 84 | INTEGER n,l,ig,iq |
|---|
| 85 | REAL zdtsig(ngrid,nlayer) |
|---|
| 86 | REAL zmass(ngrid,nlayer),zzmass(nlayer),w(nlayer+1) |
|---|
| 87 | REAL zdmass_sum(ngrid,nlayer+1) |
|---|
| 88 | REAL zmflux(nlayer+1) |
|---|
| 89 | REAL zq1(nlayer) |
|---|
| 90 | REAL ztsrf(ngrid) |
|---|
| 91 | REAL ztm(nlayer+1) |
|---|
| 92 | REAL zum(nlayer+1) , zvm(nlayer+1) |
|---|
| 93 | REAL zqm(nlayer+1,nq),zqm1(nlayer+1) |
|---|
| 94 | REAL sigma(nlayer+1) |
|---|
| 95 | |
|---|
| 96 | ! local saved variables |
|---|
| 97 | LOGICAL, SAVE :: firstcall=.true. |
|---|
| 98 | !$OMP THREADPRIVATE(firstcall) |
|---|
| 99 | |
|---|
| 100 | !---------------------------------------------------------------------- |
|---|
| 101 | |
|---|
| 102 | ! Initialisation |
|---|
| 103 | ! -------------- |
|---|
| 104 | ! |
|---|
| 105 | IF (firstcall) THEN |
|---|
| 106 | firstcall=.false. |
|---|
| 107 | ENDIF |
|---|
| 108 | ! |
|---|
| 109 | !====================================================================== |
|---|
| 110 | ! Calcul of h2o condensation |
|---|
| 111 | ! ============================================================ |
|---|
| 112 | ! |
|---|
| 113 | ! Used variable : |
|---|
| 114 | ! pdmassmr : air Mass added to the atmosphere in each layer per unit time (kg/m2/s) |
|---|
| 115 | ! zdmass_sum(ngrid,l) : total air mass added to the atm above layer l per unit time (kg/m2/s) |
|---|
| 116 | ! |
|---|
| 117 | ! |
|---|
| 118 | ! Surface tracer Tendencies set to 0 |
|---|
| 119 | ! ------------------------------------- |
|---|
| 120 | pdqsmr(1:ngrid,1:nq)=0. |
|---|
| 121 | |
|---|
| 122 | ztsrf(1:ngrid) = ptsrf(1:ngrid) + pdtsrf(1:ngrid)*ptimestep |
|---|
| 123 | |
|---|
| 124 | |
|---|
| 125 | DO ig=1,ngrid |
|---|
| 126 | zdmass_sum(ig,nlayer+1)=0. |
|---|
| 127 | DO l = nlayer, 1, -1 |
|---|
| 128 | zmass(ig,l) = (pplev(ig,l)-pplev(ig,l+1))/glat(ig) |
|---|
| 129 | zdmass_sum(ig,l)= zdmass_sum(ig,l+1)+pdmassmr(ig,l) |
|---|
| 130 | END DO |
|---|
| 131 | END DO |
|---|
| 132 | |
|---|
| 133 | |
|---|
| 134 | if (water) then |
|---|
| 135 | do ig=1,ngrid |
|---|
| 136 | call Tsat_water(pplev(ig,1)+zdmass_sum(ig,1)*g*ptimestep,Tsat(ig)) |
|---|
| 137 | enddo |
|---|
| 138 | call writediagfi(ngrid,'Tsat','saturation temperature at surface','',2,Tsat) |
|---|
| 139 | |
|---|
| 140 | do ig=1,ngrid |
|---|
| 141 | if (ztsrf(ig).gt.Tsat(ig)) then |
|---|
| 142 | zmassboil(ig)=(ptsrf(ig)-Tsat(ig))*pcapcal(ig)/RLVTT/ptimestep |
|---|
| 143 | if ((zmassboil(ig)*ptimestep.gt.pqs(ig,igcm_h2o_vap)).and.(rnat(ig).eq.1)) then |
|---|
| 144 | zmassboil(ig)=pqs(ig,igcm_h2o_vap)/ptimestep |
|---|
| 145 | endif |
|---|
| 146 | zmassboil(ig)=zmassboil(ig)*0.0 !momentary, should be 1. JL12 |
|---|
| 147 | pdqsmr(ig,igcm_h2o_vap)=-zmassboil(ig) |
|---|
| 148 | pdtsrfmr(ig)=-zmassboil(ig)*RLVTT/pcapcal(ig) |
|---|
| 149 | ztsrf(ig)=ptsrf(ig)+pdtsrfmr(ig)*ptimestep |
|---|
| 150 | else |
|---|
| 151 | zmassboil(ig)=0. |
|---|
| 152 | pdtsrfmr(ig)=0. |
|---|
| 153 | endif |
|---|
| 154 | enddo |
|---|
| 155 | endif |
|---|
| 156 | |
|---|
| 157 | ! ************************* |
|---|
| 158 | ! UPDATE SURFACE |
|---|
| 159 | ! ************************* |
|---|
| 160 | ! Changing pressure at the surface: |
|---|
| 161 | ! """""""""""""""""""""""""""""""""""" |
|---|
| 162 | |
|---|
| 163 | pdpsrfmr(1:ngrid) = (zdmass_sum(1:ngrid,1)+zmassboil(1:ngrid))*g |
|---|
| 164 | |
|---|
| 165 | do ig = 1, ngrid |
|---|
| 166 | IF(ABS(pdpsrfmr(ig)*ptimestep).GT.pplev(ig,1)) THEN |
|---|
| 167 | PRINT*,'STOP in condens in mass_redistribution' |
|---|
| 168 | PRINT*,'condensing more than total mass' |
|---|
| 169 | PRINT*,'Grid point ',ig |
|---|
| 170 | PRINT*,'Ps = ',pplev(ig,1) |
|---|
| 171 | PRINT*,'d Ps = ',pdpsrfmr(ig)*ptimestep |
|---|
| 172 | STOP |
|---|
| 173 | ENDIF |
|---|
| 174 | enddo ! of DO ig=1,ngrid |
|---|
| 175 | |
|---|
| 176 | |
|---|
| 177 | ! *************************************************************** |
|---|
| 178 | ! Correction to account for redistribution between sigma or hybrid |
|---|
| 179 | ! layers when changing surface pressure |
|---|
| 180 | ! zzx quantities have dimension (nlayer) to speed up calculation |
|---|
| 181 | ! ************************************************************* |
|---|
| 182 | |
|---|
| 183 | DO ig=1,ngrid |
|---|
| 184 | zzt(1:nlayer) = pt(ig,1:nlayer) + pdt(ig,1:nlayer) * ptimestep |
|---|
| 185 | zzu(1:nlayer) = pu(ig,1:nlayer) + pdu(ig,1:nlayer) * ptimestep |
|---|
| 186 | zzv(1:nlayer) = pv(ig,1:nlayer) + pdv(ig,1:nlayer) * ptimestep |
|---|
| 187 | zzq(1:nlayer,1:nq)=pq(ig,1:nlayer,1:nq)+pdq(ig,1:nlayer,1:nq)*ptimestep ! must add the water that has fallen??? |
|---|
| 188 | |
|---|
| 189 | ! Mass fluxes of air through the sigma levels (kg.m-2.s-1) (>0 when up) |
|---|
| 190 | ! """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" |
|---|
| 191 | zmflux(1) = zmassboil(ig) |
|---|
| 192 | sigma(1)=1 |
|---|
| 193 | DO l=1,nlayer |
|---|
| 194 | ! Ehouarn: shouldn't we rather compute sigma levels than use bp()? |
|---|
| 195 | ! sigma(l+1)=pplev(ig,l+1)/pplev(ig,1) |
|---|
| 196 | ! zmflux(l+1) = zmflux(l) + pdmassmr(ig,l) - & |
|---|
| 197 | ! (sigma(l)-sigma(l+1))*(zdmass_sum(ig,1)+zmflux(1)) |
|---|
| 198 | ! if (abs(zmflux(l+1)).lt.1E-13.OR.sigma(l+1).eq.0.) zmflux(l+1)=0. |
|---|
| 199 | ! Ehouarn: but for now leave things as before |
|---|
| 200 | zmflux(l+1) = zmflux(l) + pdmassmr(ig,l) - (bp(l)-bp(l+1))*(zdmass_sum(ig,1)+zmflux(1)) |
|---|
| 201 | ! zmflux set to 0 if very low to avoid: top layer is disappearing in v1ld |
|---|
| 202 | if (abs(zmflux(l+1)).lt.1E-13.OR.bp(l+1).eq.0.) zmflux(l+1)=0. |
|---|
| 203 | END DO |
|---|
| 204 | |
|---|
| 205 | ! Mass of each layer |
|---|
| 206 | ! ------------------ |
|---|
| 207 | zzmass(1:nlayer)=zmass(ig,1:nlayer)*(1.+pdpsrfmr(ig)*ptimestep/pplev(ig,1)) |
|---|
| 208 | |
|---|
| 209 | |
|---|
| 210 | ! Corresponding fluxes for T,U,V,Q |
|---|
| 211 | ! """""""""""""""""""""""""""""""" |
|---|
| 212 | |
|---|
| 213 | ! averaging operator for TRANSPORT |
|---|
| 214 | ! """""""""""""""""""""""""""""""" |
|---|
| 215 | ! Value transfert at the surface interface when condensation |
|---|
| 216 | ! sublimation: |
|---|
| 217 | ztm(1) = ztsrf(ig) |
|---|
| 218 | zum(1) = 0. |
|---|
| 219 | zvm(1) = 0. |
|---|
| 220 | zqm(1,1:nq)=0. ! most tracer do not condense ! |
|---|
| 221 | if (water) zqm(1,igcm_h2o_vap)=1. ! flux is 100% h2o at surface |
|---|
| 222 | |
|---|
| 223 | ! Van Leer scheme: |
|---|
| 224 | w(1:nlayer+1)=-zmflux(1:nlayer+1)*ptimestep |
|---|
| 225 | call vl1d(nlayer,zzt,2.,zzmass,w,ztm) |
|---|
| 226 | call vl1d(nlayer,zzu,2.,zzmass,w,zum) |
|---|
| 227 | call vl1d(nlayer,zzv,2.,zzmass,w,zvm) |
|---|
| 228 | do iq=1,nq |
|---|
| 229 | zq1(1:nlayer)=zzq(1:nlayer,iq) |
|---|
| 230 | zqm1(1)=zqm(1,iq) |
|---|
| 231 | ! print*,iq |
|---|
| 232 | ! print*,zq1 |
|---|
| 233 | call vl1d(nlayer,zq1,2.,zzmass,w,zqm1) |
|---|
| 234 | do l=2,nlayer |
|---|
| 235 | zzq(l,iq)=zq1(l) |
|---|
| 236 | zqm(l,iq)=zqm1(l) |
|---|
| 237 | enddo |
|---|
| 238 | enddo |
|---|
| 239 | |
|---|
| 240 | ! Surface condensation affects low winds |
|---|
| 241 | if (zmflux(1).lt.0) then |
|---|
| 242 | zum(1)= zzu(1) * (w(1)/zzmass(1)) |
|---|
| 243 | zvm(1)= zzv(1) * (w(1)/zzmass(1)) |
|---|
| 244 | if (w(1).gt.zzmass(1)) then ! ensure numerical stability |
|---|
| 245 | zum(1)= (zzu(1)-zum(2))*zzmass(1)/w(1) + zum(2) |
|---|
| 246 | zvm(1)= (zzv(1)-zvm(2))*zzmass(1)/w(1) + zvm(2) |
|---|
| 247 | end if |
|---|
| 248 | end if |
|---|
| 249 | |
|---|
| 250 | ztm(nlayer+1)= zzt(nlayer) ! should not be used, but... |
|---|
| 251 | zum(nlayer+1)= zzu(nlayer) ! should not be used, but... |
|---|
| 252 | zvm(nlayer+1)= zzv(nlayer) ! should not be used, but... |
|---|
| 253 | zqm(nlayer+1,1:nq)= zzq(nlayer,1:nq) |
|---|
| 254 | |
|---|
| 255 | ! Tendencies on T, U, V, Q |
|---|
| 256 | ! """""""""""""""""""""""" |
|---|
| 257 | DO l=1,nlayer |
|---|
| 258 | |
|---|
| 259 | ! Tendencies on T |
|---|
| 260 | pdtmr(ig,l) = (1/zzmass(l)) * & |
|---|
| 261 | (zmflux(l)*(ztm(l) - zzt(l))-zmflux(l+1)*(ztm(l+1)-zzt(l))) |
|---|
| 262 | !JL12 the last term in Newcondens has been set to zero because we are only dealing with redistribution here |
|---|
| 263 | |
|---|
| 264 | ! Tendencies on U |
|---|
| 265 | pdumr(ig,l) = (1/zzmass(l)) *( zmflux(l)*(zum(l) - zzu(l)) - zmflux(l+1)*(zum(l+1) - zzu(l)) ) |
|---|
| 266 | |
|---|
| 267 | ! Tendencies on V |
|---|
| 268 | pdvmr(ig,l) = (1/zzmass(l)) *( zmflux(l)*(zvm(l) - zzv(l)) - zmflux(l+1)*(zvm(l+1) - zzv(l)) ) |
|---|
| 269 | |
|---|
| 270 | END DO |
|---|
| 271 | |
|---|
| 272 | ! Tendencies on Q |
|---|
| 273 | do iq=1,nq |
|---|
| 274 | DO l=1,nlayer |
|---|
| 275 | pdqmr(ig,l,iq)= (1/zzmass(l)) * & |
|---|
| 276 | (zmflux(l)*(zqm(l,iq)-zzq(l,iq))- zmflux(l+1)*(zqm(l+1,iq)-zzq(l,iq)) - pdmassmr(ig,l)*zzq(l,iq)) |
|---|
| 277 | END DO |
|---|
| 278 | enddo |
|---|
| 279 | |
|---|
| 280 | END DO ! loop on ig |
|---|
| 281 | |
|---|
| 282 | CONTAINS |
|---|
| 283 | |
|---|
| 284 | ! ***************************************************************** |
|---|
| 285 | SUBROUTINE vl1d(llm,q,pente_max,zzmass,w,qm) |
|---|
| 286 | ! |
|---|
| 287 | ! |
|---|
| 288 | ! Operateur de moyenne inter-couche pour calcul de transport type |
|---|
| 289 | ! Van-Leer " pseudo amont " dans la verticale |
|---|
| 290 | ! q,w sont des arguments d'entree pour le s-pg .... |
|---|
| 291 | ! masse : masse de la couche Dp/g |
|---|
| 292 | ! w : masse d'atm ``transferee'' a chaque pas de temps (kg.m-2) |
|---|
| 293 | ! pente_max = 2 conseillee |
|---|
| 294 | ! |
|---|
| 295 | ! |
|---|
| 296 | ! -------------------------------------------------------------------- |
|---|
| 297 | |
|---|
| 298 | IMPLICIT NONE |
|---|
| 299 | |
|---|
| 300 | ! Arguments: |
|---|
| 301 | ! ---------- |
|---|
| 302 | integer,intent(in) :: llm |
|---|
| 303 | real zzmass(llm),pente_max |
|---|
| 304 | REAL q(llm),qm(llm+1) |
|---|
| 305 | REAL w(llm+1) |
|---|
| 306 | ! |
|---|
| 307 | ! Local |
|---|
| 308 | ! --------- |
|---|
| 309 | ! |
|---|
| 310 | INTEGER l |
|---|
| 311 | ! |
|---|
| 312 | real dzq(llm),dzqw(llm),adzqw(llm),dzqmax |
|---|
| 313 | real sigw, Mtot, MQtot |
|---|
| 314 | integer m |
|---|
| 315 | ! integer ismax,ismin |
|---|
| 316 | |
|---|
| 317 | |
|---|
| 318 | ! On oriente tout dans le sens de la pression |
|---|
| 319 | ! W > 0 WHEN DOWN !!!!!!!!!!!!! |
|---|
| 320 | |
|---|
| 321 | do l=2,llm |
|---|
| 322 | dzqw(l)=q(l-1)-q(l) |
|---|
| 323 | adzqw(l)=abs(dzqw(l)) |
|---|
| 324 | enddo |
|---|
| 325 | |
|---|
| 326 | do l=2,llm-1 |
|---|
| 327 | if(dzqw(l)*dzqw(l+1).gt.0.) then |
|---|
| 328 | dzq(l)=0.5*(dzqw(l)+dzqw(l+1)) |
|---|
| 329 | else |
|---|
| 330 | dzq(l)=0. |
|---|
| 331 | endif |
|---|
| 332 | dzqmax=pente_max*min(adzqw(l),adzqw(l+1)) |
|---|
| 333 | dzq(l)=sign(min(abs(dzq(l)),dzqmax),dzq(l)) |
|---|
| 334 | enddo |
|---|
| 335 | |
|---|
| 336 | dzq(1)=0. |
|---|
| 337 | dzq(llm)=0. |
|---|
| 338 | |
|---|
| 339 | do l = 1,llm-1 |
|---|
| 340 | |
|---|
| 341 | ! Regular scheme (transfered mass < layer mass) |
|---|
| 342 | ! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
|---|
| 343 | if(w(l+1).gt.0. .and. w(l+1).le.zzmass(l+1)) then |
|---|
| 344 | sigw=w(l+1)/zzmass(l+1) |
|---|
| 345 | qm(l+1)=(q(l+1)+0.5*(1.-sigw)*dzq(l+1)) |
|---|
| 346 | else if(w(l+1).le.0. .and. -w(l+1).le.zzmass(l)) then |
|---|
| 347 | sigw=w(l+1)/zzmass(l) |
|---|
| 348 | qm(l+1)=(q(l)-0.5*(1.+sigw)*dzq(l)) |
|---|
| 349 | |
|---|
| 350 | ! Extended scheme (transfered mass > layer mass) |
|---|
| 351 | ! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
|---|
| 352 | else if(w(l+1).gt.0.) then |
|---|
| 353 | m=l+1 |
|---|
| 354 | Mtot = zzmass(m) |
|---|
| 355 | MQtot = zzmass(m)*q(m) |
|---|
| 356 | do while ((m.lt.llm).and.(w(l+1).gt.(Mtot+zzmass(m+1)))) |
|---|
| 357 | m=m+1 |
|---|
| 358 | Mtot = Mtot + zzmass(m) |
|---|
| 359 | MQtot = MQtot + zzmass(m)*q(m) |
|---|
| 360 | end do |
|---|
| 361 | if (m.lt.llm) then |
|---|
| 362 | sigw=(w(l+1)-Mtot)/zzmass(m+1) |
|---|
| 363 | qm(l+1)= (1/w(l+1))*(MQtot + (w(l+1)-Mtot)*(q(m+1)+0.5*(1.-sigw)*dzq(m+1)) ) |
|---|
| 364 | else |
|---|
| 365 | ! w(l+1) = Mtot |
|---|
| 366 | ! qm(l+1) = Mqtot / Mtot |
|---|
| 367 | write(*,*) 'top layer is disappearing !',l,Mtot,w(l+1),qm(l+1) |
|---|
| 368 | print*,zzmass |
|---|
| 369 | print*,w |
|---|
| 370 | print*,q |
|---|
| 371 | print*,qm |
|---|
| 372 | stop |
|---|
| 373 | end if |
|---|
| 374 | else ! if(w(l+1).lt.0) |
|---|
| 375 | m = l-1 |
|---|
| 376 | Mtot = zzmass(m+1) |
|---|
| 377 | MQtot = zzmass(m+1)*q(m+1) |
|---|
| 378 | if (m.gt.0) then ! because some compilers will have problems |
|---|
| 379 | ! evaluating zzmass(0) |
|---|
| 380 | do while ((m.gt.0).and.(-w(l+1).gt.(Mtot+zzmass(m)))) |
|---|
| 381 | m=m-1 |
|---|
| 382 | Mtot = Mtot + zzmass(m+1) |
|---|
| 383 | MQtot = MQtot + zzmass(m+1)*q(m+1) |
|---|
| 384 | if (m.eq.0) exit |
|---|
| 385 | end do |
|---|
| 386 | endif |
|---|
| 387 | if (m.gt.0) then |
|---|
| 388 | sigw=(w(l+1)+Mtot)/zzmass(m) |
|---|
| 389 | qm(l+1)= (-1/w(l+1))*(MQtot + (-w(l+1)-Mtot)*(q(m)-0.5*(1.+sigw)*dzq(m)) ) |
|---|
| 390 | else |
|---|
| 391 | qm(l+1)= (-1/w(l+1))*(MQtot + (-w(l+1)-Mtot)*qm(1)) |
|---|
| 392 | end if |
|---|
| 393 | end if |
|---|
| 394 | enddo |
|---|
| 395 | |
|---|
| 396 | ! boundary conditions (not used in newcondens !!) |
|---|
| 397 | ! qm(llm+1)=0. |
|---|
| 398 | ! if(w(1).gt.0.) then |
|---|
| 399 | ! qm(1)=q(1) |
|---|
| 400 | ! else |
|---|
| 401 | ! qm(1)=0. |
|---|
| 402 | ! end if |
|---|
| 403 | |
|---|
| 404 | END SUBROUTINE vl1d |
|---|
| 405 | |
|---|
| 406 | END SUBROUTINE mass_redistribution |
|---|
