| 1 | subroutine convadj(ngrid,nlay,nq,ptimestep, |
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| 2 | & pplay,pplev,ppopsk, |
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| 3 | & pu,pv,ph,pq, |
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| 4 | & pdufi,pdvfi,pdhfi,pdqfi, |
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| 5 | & pduadj,pdvadj,pdhadj,pdqadj) |
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| 6 | |
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| 7 | USE tracer_h |
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| 8 | use comcstfi_mod, only: g |
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| 9 | use callkeys_mod, only: tracer,water |
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| 10 | |
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| 11 | implicit none |
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| 12 | |
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| 13 | !================================================================== |
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| 14 | ! |
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| 15 | ! Purpose |
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| 16 | ! ------- |
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| 17 | ! Calculates dry convective adjustment. If one tracer is CO2, |
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| 18 | ! we take into account the molecular mass variation (e.g. when |
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| 19 | ! CO2 condenses) to trigger convection (F. Forget 01/2005) |
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| 20 | ! |
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| 21 | ! Authors |
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| 22 | ! ------- |
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| 23 | ! Original author unknown. |
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| 24 | ! Modif. 2005 by F. Forget. |
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| 25 | ! |
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| 26 | !================================================================== |
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| 27 | |
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| 28 | ! ------------ |
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| 29 | ! Declarations |
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| 30 | ! ------------ |
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| 31 | |
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| 32 | |
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| 33 | ! Arguments |
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| 34 | ! --------- |
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| 35 | |
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| 36 | INTEGER ngrid,nlay |
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| 37 | REAL ptimestep |
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| 38 | REAL ph(ngrid,nlay),pdhfi(ngrid,nlay),pdhadj(ngrid,nlay) |
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| 39 | REAL pplay(ngrid,nlay),pplev(ngrid,nlay+1),ppopsk(ngrid,nlay) |
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| 40 | REAL pu(ngrid,nlay),pdufi(ngrid,nlay),pduadj(ngrid,nlay) |
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| 41 | REAL pv(ngrid,nlay),pdvfi(ngrid,nlay),pdvadj(ngrid,nlay) |
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| 42 | |
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| 43 | ! Tracers |
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| 44 | integer nq |
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| 45 | real pq(ngrid,nlay,nq), pdqfi(ngrid,nlay,nq) |
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| 46 | real pdqadj(ngrid,nlay,nq) |
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| 47 | |
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| 48 | |
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| 49 | ! Local |
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| 50 | ! ----- |
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| 51 | |
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| 52 | INTEGER ig,i,l,l1,l2,jj |
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| 53 | INTEGER jcnt, jadrs(ngrid) |
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| 54 | |
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| 55 | REAL sig(nlay+1),sdsig(nlay),dsig(nlay) |
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| 56 | REAL zu(ngrid,nlay),zv(ngrid,nlay) |
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| 57 | REAL zh(ngrid,nlay) |
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| 58 | REAL zu2(ngrid,nlay),zv2(ngrid,nlay) |
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| 59 | REAL zh2(ngrid,nlay), zhc(ngrid,nlay) |
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| 60 | REAL zhm,zsm,zdsm,zum,zvm,zalpha,zhmc |
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| 61 | |
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| 62 | ! Tracers |
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| 63 | INTEGER iq |
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| 64 | REAL zq(ngrid,nlay,nq), zq2(ngrid,nlay,nq) |
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| 65 | REAL zqm(nq),zqco2m |
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| 66 | |
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| 67 | LOGICAL vtest(ngrid),down |
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| 68 | |
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| 69 | ! for conservation test |
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| 70 | real masse,cadjncons |
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| 71 | |
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| 72 | EXTERNAL SCOPY |
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| 73 | |
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| 74 | ! -------------- |
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| 75 | ! Initialisation |
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| 76 | ! -------------- |
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| 77 | |
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| 78 | DO l=1,nlay |
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| 79 | DO ig=1,ngrid |
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| 80 | zh(ig,l)=ph(ig,l)+pdhfi(ig,l)*ptimestep |
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| 81 | zu(ig,l)=pu(ig,l)+pdufi(ig,l)*ptimestep |
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| 82 | zv(ig,l)=pv(ig,l)+pdvfi(ig,l)*ptimestep |
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| 83 | ENDDO |
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| 84 | ENDDO |
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| 85 | |
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| 86 | if(tracer) then |
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| 87 | DO iq =1, nq |
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| 88 | DO l=1,nlay |
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| 89 | DO ig=1,ngrid |
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| 90 | zq(ig,l,iq)=pq(ig,l,iq)+pdqfi(ig,l,iq)*ptimestep |
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| 91 | ENDDO |
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| 92 | ENDDO |
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| 93 | ENDDO |
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| 94 | end if |
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| 95 | |
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| 96 | CALL scopy(ngrid*nlay,zh,1,zh2,1) |
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| 97 | CALL scopy(ngrid*nlay,zu,1,zu2,1) |
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| 98 | CALL scopy(ngrid*nlay,zv,1,zv2,1) |
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| 99 | CALL scopy(ngrid*nlay*nq,zq,1,zq2,1) |
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| 100 | |
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| 101 | ! ----------------------------- |
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| 102 | ! Detection of unstable columns |
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| 103 | ! ----------------------------- |
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| 104 | ! If ph(above) < ph(below) we set vtest=.true. |
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| 105 | |
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| 106 | DO ig=1,ngrid |
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| 107 | vtest(ig)=.false. |
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| 108 | ENDDO |
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| 109 | |
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| 110 | CALL scopy(ngrid*nlay,zh2,1,zhc,1) |
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| 111 | |
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| 112 | ! Find out which grid points are convectively unstable |
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| 113 | DO l=2,nlay |
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| 114 | DO ig=1,ngrid |
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| 115 | IF (zhc(ig,l).LT.zhc(ig,l-1)) THEN |
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| 116 | vtest(ig)=.true. |
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| 117 | ENDIF |
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| 118 | ENDDO |
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| 119 | ENDDO |
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| 120 | |
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| 121 | ! Make a list of them |
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| 122 | jcnt=0 |
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| 123 | DO ig=1,ngrid |
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| 124 | IF(vtest(ig)) THEN |
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| 125 | jcnt=jcnt+1 |
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| 126 | jadrs(jcnt)=ig |
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| 127 | ENDIF |
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| 128 | ENDDO |
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| 129 | |
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| 130 | |
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| 131 | ! --------------------------------------------------------------- |
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| 132 | ! Adjustment of the "jcnt" unstable profiles indicated by "jadrs" |
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| 133 | ! --------------------------------------------------------------- |
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| 134 | |
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| 135 | DO jj = 1, jcnt ! loop on every convective grid point |
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| 136 | |
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| 137 | i = jadrs(jj) |
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| 138 | |
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| 139 | ! Calculate sigma in this column |
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| 140 | DO l=1,nlay+1 |
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| 141 | sig(l)=pplev(i,l)/pplev(i,1) |
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| 142 | |
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| 143 | ENDDO |
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| 144 | DO l=1,nlay |
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| 145 | dsig(l)=sig(l)-sig(l+1) |
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| 146 | sdsig(l)=ppopsk(i,l)*dsig(l) |
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| 147 | ENDDO |
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| 148 | l2 = 1 |
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| 149 | |
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| 150 | ! Test loop upwards on l2 |
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| 151 | |
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| 152 | DO |
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| 153 | l2 = l2 + 1 |
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| 154 | IF (l2 .GT. nlay) EXIT |
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| 155 | IF (zhc(i, l2).LT.zhc(i, l2-1)) THEN |
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| 156 | |
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| 157 | ! l2 is the highest level of the unstable column |
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| 158 | |
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| 159 | l1 = l2 - 1 |
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| 160 | l = l1 |
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| 161 | zsm = sdsig(l2) |
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| 162 | zdsm = dsig(l2) |
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| 163 | zhm = zh2(i, l2) |
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| 164 | |
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| 165 | ! Test loop downwards |
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| 166 | |
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| 167 | DO |
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| 168 | zsm = zsm + sdsig(l) |
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| 169 | zdsm = zdsm + dsig(l) |
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| 170 | zhm = zhm + sdsig(l) * (zh2(i, l) - zhm) / zsm |
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| 171 | zhmc = zhm |
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| 172 | |
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| 173 | ! do we have to extend the column downwards? |
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| 174 | |
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| 175 | down = .false. |
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| 176 | IF (l1 .ne. 1) then !-- and then |
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| 177 | IF (zhmc.LT.zhc(i, l1-1)) then |
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| 178 | down = .true. |
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| 179 | END IF |
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| 180 | END IF |
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| 181 | |
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| 182 | ! this could be a problem... |
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| 183 | |
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| 184 | if (down) then |
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| 185 | |
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| 186 | l1 = l1 - 1 |
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| 187 | l = l1 |
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| 188 | |
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| 189 | else |
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| 190 | |
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| 191 | ! can we extend the column upwards? |
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| 192 | |
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| 193 | if (l2 .eq. nlay) exit |
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| 194 | |
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| 195 | if (zhc(i, l2+1) .ge. zhmc) exit |
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| 196 | |
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| 197 | l2 = l2 + 1 |
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| 198 | l = l2 |
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| 199 | |
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| 200 | end if |
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| 201 | |
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| 202 | enddo |
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| 203 | |
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| 204 | ! New constant profile (average value) |
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| 205 | |
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| 206 | |
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| 207 | zalpha=0. |
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| 208 | zum=0. |
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| 209 | zvm=0. |
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| 210 | do iq=1,nq |
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| 211 | zqm(iq) = 0. |
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| 212 | end do |
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| 213 | DO l = l1, l2 |
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| 214 | zalpha=zalpha+ABS(zh2(i,l)-zhm)*dsig(l) |
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| 215 | zh2(i, l) = zhm |
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| 216 | ! modifs by RDW !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 217 | zum=zum+dsig(l)*zu2(i,l) |
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| 218 | zvm=zvm+dsig(l)*zv2(i,l) |
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| 219 | ! zum=zum+dsig(l)*zu(i,l) |
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| 220 | ! zvm=zvm+dsig(l)*zv(i,l) |
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| 221 | do iq=1,nq |
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| 222 | zqm(iq) = zqm(iq)+dsig(l)*zq2(i,l,iq) |
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| 223 | ! zqm(iq) = zqm(iq)+dsig(l)*zq(i,l,iq) |
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| 224 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 225 | |
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| 226 | ! to conserve tracers/ KE, we must calculate zum, zvm and zqm using |
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| 227 | ! the up-to-date column values. If we do not do this, there are cases |
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| 228 | ! where convection stops at one level and starts at the next where we |
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| 229 | ! can break conservation of stuff (particularly tracers) significantly. |
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| 230 | |
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| 231 | end do |
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| 232 | ENDDO |
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| 233 | zalpha=zalpha/(zhm*(sig(l1)-sig(l2+1))) |
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| 234 | zum=zum/(sig(l1)-sig(l2+1)) |
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| 235 | zvm=zvm/(sig(l1)-sig(l2+1)) |
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| 236 | do iq=1,nq |
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| 237 | zqm(iq) = zqm(iq)/(sig(l1)-sig(l2+1)) |
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| 238 | end do |
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| 239 | |
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| 240 | IF(zalpha.GT.1.) THEN |
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| 241 | zalpha=1. |
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| 242 | ELSE |
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| 243 | ! IF(zalpha.LT.0.) STOP |
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| 244 | IF(zalpha.LT.1.e-4) zalpha=1.e-4 |
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| 245 | ENDIF |
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| 246 | |
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| 247 | DO l=l1,l2 |
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| 248 | zu2(i,l)=zu2(i,l)+zalpha*(zum-zu2(i,l)) |
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| 249 | zv2(i,l)=zv2(i,l)+zalpha*(zvm-zv2(i,l)) |
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| 250 | do iq=1,nq |
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| 251 | ! zq2(i,l,iq)=zq2(i,l,iq)+zalpha*(zqm(iq)-zq2(i,l,iq)) |
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| 252 | zq2(i,l,iq)=zqm(iq) |
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| 253 | end do |
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| 254 | ENDDO |
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| 255 | |
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| 256 | |
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| 257 | l2 = l2 + 1 |
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| 258 | |
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| 259 | END IF ! End of l1 to l2 instability treatment |
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| 260 | ! We now continue to test from l2 upwards |
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| 261 | |
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| 262 | ENDDO ! End of upwards loop on l2 |
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| 263 | |
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| 264 | |
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| 265 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 266 | ! check conservation |
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| 267 | cadjncons=0.0 |
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| 268 | if(water)then |
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| 269 | do l = 1, nlay |
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| 270 | masse = (pplev(i,l) - pplev(i,l+1))/g |
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| 271 | iq = igcm_h2o_vap |
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| 272 | cadjncons = cadjncons + |
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| 273 | & masse*(zq2(i,l,iq)-zq(i,l,iq))/ptimestep |
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| 274 | end do |
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| 275 | endif |
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| 276 | |
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| 277 | if(cadjncons.lt.-1.e-6)then |
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| 278 | print*,'convadj has just crashed...' |
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| 279 | print*,'i = ',i |
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| 280 | print*,'l1 = ',l1 |
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| 281 | print*,'l2 = ',l2 |
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| 282 | print*,'cadjncons = ',cadjncons |
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| 283 | do l = 1, nlay |
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| 284 | print*,'dsig = ',dsig(l) |
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| 285 | end do |
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| 286 | do l = 1, nlay |
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| 287 | print*,'dsig = ',dsig(l) |
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| 288 | end do |
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| 289 | do l = 1, nlay |
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| 290 | print*,'sig = ',sig(l) |
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| 291 | end do |
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| 292 | do l = 1, nlay |
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| 293 | print*,'pplay(ig,:) = ',pplay(i,l) |
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| 294 | end do |
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| 295 | do l = 1, nlay+1 |
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| 296 | print*,'pplev(ig,:) = ',pplev(i,l) |
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| 297 | end do |
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| 298 | do l = 1, nlay |
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| 299 | print*,'ph(ig,:) = ',ph(i,l) |
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| 300 | end do |
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| 301 | do l = 1, nlay |
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| 302 | print*,'ph(ig,:) = ',ph(i,l) |
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| 303 | end do |
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| 304 | do l = 1, nlay |
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| 305 | print*,'ph(ig,:) = ',ph(i,l) |
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| 306 | end do |
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| 307 | do l = 1, nlay |
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| 308 | print*,'zh(ig,:) = ',zh(i,l) |
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| 309 | end do |
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| 310 | do l = 1, nlay |
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| 311 | print*,'zh2(ig,:) = ',zh2(i,l) |
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| 312 | end do |
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| 313 | do l = 1, nlay |
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| 314 | print*,'zq(ig,:,vap) = ',zq(i,l,igcm_h2o_vap) |
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| 315 | end do |
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| 316 | do l = 1, nlay |
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| 317 | print*,'zq2(ig,:,vap) = ',zq2(i,l,igcm_h2o_vap) |
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| 318 | end do |
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| 319 | print*,'zqm(vap) = ',zqm(igcm_h2o_vap) |
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| 320 | print*,'jadrs=',jadrs |
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| 321 | |
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| 322 | call abort |
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| 323 | endif |
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| 324 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 325 | |
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| 326 | |
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| 327 | ENDDO |
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| 328 | |
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| 329 | DO l=1,nlay |
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| 330 | DO ig=1,ngrid |
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| 331 | pdhadj(ig,l)=(zh2(ig,l)-zh(ig,l))/ptimestep |
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| 332 | pduadj(ig,l)=(zu2(ig,l)-zu(ig,l))/ptimestep |
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| 333 | pdvadj(ig,l)=(zv2(ig,l)-zv(ig,l))/ptimestep |
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| 334 | ENDDO |
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| 335 | ENDDO |
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| 336 | |
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| 337 | if(tracer) then |
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| 338 | do iq=1, nq |
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| 339 | do l=1,nlay |
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| 340 | DO ig=1,ngrid |
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| 341 | pdqadj(ig,l,iq)=(zq2(ig,l,iq)-zq(ig,l,iq))/ptimestep |
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| 342 | end do |
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| 343 | end do |
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| 344 | end do |
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| 345 | end if |
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| 346 | |
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| 347 | |
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| 348 | ! output |
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| 349 | ! if (ngrid.eq.1) then |
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| 350 | ! ig=1 |
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| 351 | ! iq =1 |
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| 352 | ! write(*,*)'**** l, pq(ig,l,iq),zq(ig,l,iq),zq2(ig,l,iq)' |
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| 353 | ! do l=nlay,1,-1 |
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| 354 | ! write(*,*) l, pq(ig,l,iq),zq(ig,l,iq),zq2(ig,l,iq) |
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| 355 | ! end do |
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| 356 | ! end if |
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| 357 | |
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| 358 | |
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| 359 | return |
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| 360 | end |
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