| 1 | SUBROUTINE coefdifv( np,nlev, |
|---|
| 2 | $ pu,pv,ph,pphi, |
|---|
| 3 | $ pcdzv,pcdzh) |
|---|
| 4 | USE constlim, ONLY : ccdzh, cdzmin, cpgam, cdzconst, dgcdrag |
|---|
| 5 | USE vdif_mod, ONLY : lmixmin |
|---|
| 6 | USE phys_const, ONLY : g |
|---|
| 7 | IMPLICIT NONE |
|---|
| 8 | |
|---|
| 9 | c======================================================================= |
|---|
| 10 | c |
|---|
| 11 | c calcul des coeficients de la diffusion verticale |
|---|
| 12 | c |
|---|
| 13 | c======================================================================= |
|---|
| 14 | c |
|---|
| 15 | c----------------------------------------------------------------------- |
|---|
| 16 | c Declarations: |
|---|
| 17 | c ------------- |
|---|
| 18 | |
|---|
| 19 | c Arguments: |
|---|
| 20 | c ---------- |
|---|
| 21 | |
|---|
| 22 | INTEGER np,nlev |
|---|
| 23 | REAL pu(np,nlev),pv(np,nlev) |
|---|
| 24 | REAL ph(np,nlev),pphi(np,nlev) |
|---|
| 25 | REAL pcdzv(np,nlev),pcdzh(np,nlev) |
|---|
| 26 | |
|---|
| 27 | c Local: |
|---|
| 28 | c ------ |
|---|
| 29 | |
|---|
| 30 | INTEGER ilev,ip |
|---|
| 31 | REAL z1(np),z2(np) |
|---|
| 32 | REAL z1odz(np),zdzu2(np),zhbar(np) |
|---|
| 33 | |
|---|
| 34 | c----------------------------------------------------------------------- |
|---|
| 35 | c initialisations: |
|---|
| 36 | c ---------------- |
|---|
| 37 | |
|---|
| 38 | c----------------------------------------------------------------------- |
|---|
| 39 | c couche de surface: |
|---|
| 40 | c ------------------ |
|---|
| 41 | |
|---|
| 42 | DO 210 ip=1,np |
|---|
| 43 | z1(ip)=pu(ip,1)*pu(ip,1)+pv(ip,1)*pv(ip,1) |
|---|
| 44 | pcdzv(ip,1)=dgcdrag(ip)*(SQRT(z1(ip))+1.) / ph(ip,1) |
|---|
| 45 | pcdzh(ip,1)=pcdzv(ip,1) |
|---|
| 46 | 210 CONTINUE |
|---|
| 47 | c |
|---|
| 48 | c |
|---|
| 49 | c----------------------------------------------------------------------- |
|---|
| 50 | c autres couches: |
|---|
| 51 | c --------------- |
|---|
| 52 | |
|---|
| 53 | PRINT*,'Coeff k' |
|---|
| 54 | DO 310 ilev=1,nlev-1 |
|---|
| 55 | DO 320 ip=1,np |
|---|
| 56 | z1(ip)=pu(ip,ilev+1)-pu(ip,ilev) |
|---|
| 57 | z2(ip)=pv(ip,ilev+1)-pv(ip,ilev) |
|---|
| 58 | z1(ip)=z1(ip)*z1(ip)+z2(ip)*z2(ip) |
|---|
| 59 | z1odz(ip)=g/(pphi(ip,ilev+1)-pphi(ip,ilev)) |
|---|
| 60 | zdzu2(ip)=z1(ip)*z1odz(ip)*z1odz(ip) |
|---|
| 61 | zhbar(ip)=0.5*(ph(ip,ilev)+ph(ip,ilev+1)) |
|---|
| 62 | z1(ip)=( (ph(ip,ilev+1)-ph(ip,ilev))*z1odz(ip)- |
|---|
| 63 | $ cpgam ) * ccdzh/zhbar(ip) |
|---|
| 64 | pcdzv(ip,ilev+1)=cdzconst(ilev+1)* |
|---|
| 65 | $ SQRT(AMAX1(zdzu2(ip)-z1(ip),cdzmin)) / |
|---|
| 66 | c $ SQRT(cdzmin) / |
|---|
| 67 | $ (zhbar(ip)*zhbar(ip)) |
|---|
| 68 | IF(ip.eq.np/2+1) PRINT*,lmixmin*lmixmin* |
|---|
| 69 | s SQRT(AMAX1(zdzu2(ip)-z1(ip),cdzmin)) |
|---|
| 70 | pcdzh(ip,ilev+1)=pcdzv(ip,ilev+1) |
|---|
| 71 | 320 CONTINUE |
|---|
| 72 | 310 CONTINUE |
|---|
| 73 | |
|---|
| 74 | c----------------------------------------------------------------------- |
|---|
| 75 | |
|---|
| 76 | RETURN |
|---|
| 77 | END |
|---|
