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guez |
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SUBROUTINE orosetup(nlon, ktest, kkcrit, kkcrith, kcrit, kkenvh, kknu, kknu2, & |
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paphm1, papm1, pum1, pvm1, ptm1, pgeom1, pstd, prho, pri, pstab, ptau, & |
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pvph, ppsi, pzdep, pulow, pvlow, ptheta, pgamma, pmea, ppic, pval, pnu, & |
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pd1, pd2, pdmod) |
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! *gwsetup* |
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! interface from *orodrag* |
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! see ecmwf research department documentation of the "i.f.s." |
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! modifications f.lott for the new-gwdrag scheme november 1993 |
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USE dimens_m |
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USE dimphy |
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USE yomcst |
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USE yoegwd |
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IMPLICIT NONE |
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! 0.1 arguments |
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INTEGER nlon |
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INTEGER jl, jk |
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REAL zdelp |
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INTEGER kkcrit(nlon), kkcrith(nlon), kcrit(nlon), ktest(nlon), & |
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kkenvh(nlon) |
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REAL paphm1(nlon, klev+1), papm1(nlon, klev), pum1(nlon, klev), & |
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pvm1(nlon, klev), ptm1(nlon, klev), pgeom1(nlon, klev), & |
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prho(nlon, klev+1), pri(nlon, klev+1), pstab(nlon, klev+1), & |
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ptau(nlon, klev+1), pvph(nlon, klev+1), ppsi(nlon, klev+1), & |
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pzdep(nlon, klev) |
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REAL pulow(nlon), pvlow(nlon), ptheta(nlon), pgamma(nlon), pnu(nlon), & |
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pd1(nlon), pd2(nlon), pdmod(nlon) |
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REAL, INTENT (IN) :: pstd(nlon) |
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REAL pmea(nlon), ppic(nlon), pval(nlon) |
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! 0.2 local arrays |
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INTEGER ilevm1, ilevm2, ilevh |
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REAL zcons1, zcons2, zcons3, zhgeo |
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REAL zu, zphi, zvt1, zvt2, zst, zvar, zdwind, zwind |
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REAL zstabm, zstabp, zrhom, zrhop |
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REAL zggeenv, zggeom1, zgvar |
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LOGICAL lo |
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LOGICAL ll1(klon, klev+1) |
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INTEGER kknu(klon), kknu2(klon), kknub(klon), kknul(klon), kentp(klon), & |
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ncount(klon) |
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REAL zhcrit(klon, klev), zvpf(klon, klev), zdp(klon, klev) |
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REAL znorm(klon), zb(klon), zc(klon), zulow(klon), zvlow(klon), & |
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znup(klon), znum(klon) |
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!------------------------------------------------------------------ |
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!!print *, "Call sequence information: orosetup" |
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! 1. initialization |
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! 1.1 computational constants |
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ilevm1 = klev - 1 |
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ilevm2 = klev - 2 |
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ilevh = klev/3 |
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zcons1 = 1./rd |
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!old zcons2=g**2/cpd |
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zcons2 = rg**2/rcpd |
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!old zcons3=1.5*api |
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zcons3 = 1.5*rpi |
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! 2. |
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! 2.1 define low level wind, project winds in plane of |
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! low level wind, determine sector in which to take |
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! the variance and set indicator for critical levels. |
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DO jl = 1, klon |
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kknu(jl) = klev |
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kknu2(jl) = klev |
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kknub(jl) = klev |
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kknul(jl) = klev |
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pgamma(jl) = max(pgamma(jl), gtsec) |
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ll1(jl, klev+1) = .FALSE. |
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end DO |
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! Ajouter une initialisation (L. Li, le 23fev99): |
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DO jk = klev, ilevh, -1 |
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DO jl = 1, klon |
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ll1(jl, jk) = .FALSE. |
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END DO |
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END DO |
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! define top of low level flow |
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DO jk = klev, ilevh, -1 |
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DO jl = 1, klon |
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lo = (paphm1(jl, jk)/paphm1(jl, klev+1)) >= gsigcr |
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IF (lo) THEN |
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kkcrit(jl) = jk |
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END IF |
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zhcrit(jl, jk) = ppic(jl) |
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zhgeo = pgeom1(jl, jk)/rg |
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ll1(jl, jk) = (zhgeo>zhcrit(jl, jk)) |
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IF (ll1(jl, jk) .NEQV. ll1(jl, jk+1)) THEN |
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kknu(jl) = jk |
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END IF |
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IF ( .NOT. ll1(jl, ilevh)) kknu(jl) = ilevh |
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end DO |
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end DO |
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DO jk = klev, ilevh, -1 |
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DO jl = 1, klon |
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zhcrit(jl, jk) = ppic(jl) - pval(jl) |
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zhgeo = pgeom1(jl, jk)/rg |
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ll1(jl, jk) = (zhgeo>zhcrit(jl, jk)) |
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IF (ll1(jl, jk) .NEQV. ll1(jl, jk+1)) THEN |
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kknu2(jl) = jk |
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END IF |
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IF ( .NOT. ll1(jl, ilevh)) kknu2(jl) = ilevh |
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end DO |
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end DO |
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DO jk = klev, ilevh, -1 |
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DO jl = 1, klon |
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zhcrit(jl, jk) = amax1(ppic(jl)-pmea(jl), pmea(jl)-pval(jl)) |
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zhgeo = pgeom1(jl, jk)/rg |
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ll1(jl, jk) = (zhgeo>zhcrit(jl, jk)) |
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IF (ll1(jl, jk) .NEQV. ll1(jl, jk+1)) THEN |
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kknub(jl) = jk |
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END IF |
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IF ( .NOT. ll1(jl, ilevh)) kknub(jl) = ilevh |
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end DO |
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end DO |
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DO jl = 1, klon |
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kknu(jl) = min(kknu(jl), nktopg) |
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kknu2(jl) = min(kknu2(jl), nktopg) |
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kknub(jl) = min(kknub(jl), nktopg) |
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kknul(jl) = klev |
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end DO |
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!c* initialize various arrays |
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DO jl = 1, klon |
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prho(jl, klev+1) = 0.0 |
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pstab(jl, klev+1) = 0.0 |
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pstab(jl, 1) = 0.0 |
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pri(jl, klev+1) = 9999.0 |
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ppsi(jl, klev+1) = 0.0 |
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pri(jl, 1) = 0.0 |
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pvph(jl, 1) = 0.0 |
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pulow(jl) = 0.0 |
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pvlow(jl) = 0.0 |
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zulow(jl) = 0.0 |
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zvlow(jl) = 0.0 |
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kkcrith(jl) = klev |
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kkenvh(jl) = klev |
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kentp(jl) = klev |
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kcrit(jl) = 1 |
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ncount(jl) = 0 |
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ll1(jl, klev+1) = .FALSE. |
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end DO |
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! define low-level flow |
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DO jk = klev, 2, -1 |
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DO jl = 1, klon |
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IF (ktest(jl)==1) THEN |
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zdp(jl, jk) = papm1(jl, jk) - papm1(jl, jk-1) |
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prho(jl, jk) = 2. * paphm1(jl, jk) * zcons1 & |
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/ (ptm1(jl, jk) + ptm1(jl, jk-1)) |
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pstab(jl, jk) = 2. * zcons2 / (ptm1(jl, jk) + ptm1(jl, jk-1)) & |
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* (1. - rcpd * prho(jl, jk) & |
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* (ptm1(jl, jk) - ptm1(jl, jk - 1)) / zdp(jl, jk)) |
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pstab(jl, jk) = max(pstab(jl, jk), gssec) |
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END IF |
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end DO |
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end DO |
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! define blocked flow |
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DO jk = klev, ilevh, -1 |
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DO jl = 1, klon |
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IF (jk>=kknub(jl) .AND. jk<=kknul(jl)) THEN |
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pulow(jl) = pulow(jl) + pum1(jl, jk)*(paphm1(jl, jk+1)-paphm1(jl, jk) & |
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) |
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pvlow(jl) = pvlow(jl) + pvm1(jl, jk)*(paphm1(jl, jk+1)-paphm1(jl, jk) & |
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) |
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END IF |
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end DO |
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end DO |
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DO jl = 1, klon |
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pulow(jl) = pulow(jl)/(paphm1(jl, kknul(jl)+1)-paphm1(jl, kknub(jl))) |
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pvlow(jl) = pvlow(jl)/(paphm1(jl, kknul(jl)+1)-paphm1(jl, kknub(jl))) |
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znorm(jl) = max(sqrt(pulow(jl)**2+pvlow(jl)**2), gvsec) |
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pvph(jl, klev+1) = znorm(jl) |
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end DO |
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! setup orography axes and define plane of profiles |
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DO jl = 1, klon |
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lo = (pulow(jl)<gvsec) .AND. (pulow(jl)>=-gvsec) |
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IF (lo) THEN |
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zu = pulow(jl) + 2.*gvsec |
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ELSE |
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zu = pulow(jl) |
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END IF |
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zphi = atan(pvlow(jl)/zu) |
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ppsi(jl, klev+1) = ptheta(jl)*rpi/180. - zphi |
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zb(jl) = 1. - 0.18*pgamma(jl) - 0.04*pgamma(jl)**2 |
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zc(jl) = 0.48*pgamma(jl) + 0.3*pgamma(jl)**2 |
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pd1(jl) = zb(jl) - (zb(jl)-zc(jl))*(sin(ppsi(jl, klev+1))**2) |
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pd2(jl) = (zb(jl)-zc(jl))*sin(ppsi(jl, klev+1))*cos(ppsi(jl, klev+1)) |
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pdmod(jl) = sqrt(pd1(jl)**2+pd2(jl)**2) |
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end DO |
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! define flow in plane of lowlevel stress |
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DO jk = 1, klev |
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DO jl = 1, klon |
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IF (ktest(jl)==1) THEN |
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zvt1 = pulow(jl)*pum1(jl, jk) + pvlow(jl)*pvm1(jl, jk) |
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zvt2 = -pvlow(jl)*pum1(jl, jk) + pulow(jl)*pvm1(jl, jk) |
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zvpf(jl, jk) = (zvt1*pd1(jl)+zvt2*pd2(jl))/(znorm(jl)*pdmod(jl)) |
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END IF |
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ptau(jl, jk) = 0.0 |
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pzdep(jl, jk) = 0.0 |
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ppsi(jl, jk) = 0.0 |
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ll1(jl, jk) = .FALSE. |
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end DO |
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end DO |
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DO jk = 2, klev |
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DO jl = 1, klon |
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IF (ktest(jl)==1) THEN |
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zdp(jl, jk) = papm1(jl, jk) - papm1(jl, jk-1) |
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pvph(jl, jk) = ((paphm1(jl, jk)-papm1(jl, jk-1))*zvpf(jl, jk)+(papm1( & |
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jl, jk)-paphm1(jl, jk))*zvpf(jl, jk-1))/zdp(jl, jk) |
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IF (pvph(jl, jk)<gvsec) THEN |
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pvph(jl, jk) = gvsec |
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kcrit(jl) = jk |
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END IF |
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END IF |
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end DO |
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end DO |
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! 2.2 brunt-vaisala frequency and density at half levels. |
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DO jk = ilevh, klev |
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DO jl = 1, klon |
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IF (ktest(jl)==1) THEN |
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IF (jk>=(kknub(jl)+1) .AND. jk<=kknul(jl)) THEN |
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zst = zcons2/ptm1(jl, jk)*(1.-rcpd*prho(jl, jk)*(ptm1(jl, & |
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jk)-ptm1(jl, jk-1))/zdp(jl, jk)) |
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pstab(jl, klev+1) = pstab(jl, klev+1) + zst*zdp(jl, jk) |
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pstab(jl, klev+1) = max(pstab(jl, klev+1), gssec) |
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prho(jl, klev+1) = prho(jl, klev+1) + paphm1(jl, jk)*2.*zdp(jl, jk)* & |
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zcons1/(ptm1(jl, jk)+ptm1(jl, jk-1)) |
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END IF |
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END IF |
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end DO |
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end DO |
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DO jl = 1, klon |
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pstab(jl, klev + 1) = pstab(jl, klev + 1) & |
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/ (papm1(jl, kknul(jl)) - papm1(jl, kknub(jl))) |
| 263 |
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prho(jl, klev + 1) = prho(jl, klev + 1) & |
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/ (papm1(jl, kknul(jl)) - papm1(jl, kknub(jl))) |
| 265 |
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zvar = pstd(jl) |
| 266 |
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end DO |
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| 268 |
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! 2.3 mean flow richardson number. |
| 269 |
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! and critical height for froude layer |
| 270 |
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DO jk = 2, klev |
| 272 |
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DO jl = 1, klon |
| 273 |
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IF (ktest(jl)==1) THEN |
| 274 |
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zdwind = max(abs(zvpf(jl, jk)-zvpf(jl, jk-1)), gvsec) |
| 275 |
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pri(jl, jk) = pstab(jl, jk)*(zdp(jl, jk)/(rg*prho(jl, jk)*zdwind))**2 |
| 276 |
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pri(jl, jk) = max(pri(jl, jk), grcrit) |
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END IF |
| 278 |
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end DO |
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end do |
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! define top of 'envelope' layer |
| 282 |
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| 283 |
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DO jl = 1, klon |
| 284 |
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pnu(jl) = 0.0 |
| 285 |
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znum(jl) = 0.0 |
| 286 |
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end DO |
| 287 |
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| 288 |
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DO jk = 2, klev - 1 |
| 289 |
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DO jl = 1, klon |
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| 291 |
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IF (ktest(jl)==1) THEN |
| 292 |
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| 293 |
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IF (jk>=kknub(jl)) THEN |
| 294 |
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| 295 |
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znum(jl) = pnu(jl) |
| 296 |
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zwind = (pulow(jl)*pum1(jl, jk)+pvlow(jl)*pvm1(jl, jk))/ & |
| 297 |
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max(sqrt(pulow(jl)**2+pvlow(jl)**2), gvsec) |
| 298 |
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zwind = max(sqrt(zwind**2), gvsec) |
| 299 |
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zdelp = paphm1(jl, jk+1) - paphm1(jl, jk) |
| 300 |
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zstabm = sqrt(max(pstab(jl, jk), gssec)) |
| 301 |
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zstabp = sqrt(max(pstab(jl, jk+1), gssec)) |
| 302 |
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zrhom = prho(jl, jk) |
| 303 |
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zrhop = prho(jl, jk+1) |
| 304 |
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pnu(jl) = pnu(jl) + (zdelp/rg)*((zstabp/zrhop+zstabm/zrhom)/2.)/ & |
| 305 |
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zwind |
| 306 |
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IF ((znum(jl)<=gfrcrit) .AND. (pnu(jl)>gfrcrit) .AND. (kkenvh( & |
| 307 |
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jl)==klev)) kkenvh(jl) = jk |
| 308 |
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| 309 |
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END IF |
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END IF |
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end DO |
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end do |
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| 316 |
|
|
! calculation of a dynamical mixing height for the breaking |
| 317 |
|
|
! of gravity waves: |
| 318 |
|
|
|
| 319 |
|
|
DO jl = 1, klon |
| 320 |
|
|
znup(jl) = 0.0 |
| 321 |
|
|
znum(jl) = 0.0 |
| 322 |
|
|
end DO |
| 323 |
|
|
|
| 324 |
|
|
DO jk = klev - 1, 2, -1 |
| 325 |
|
|
DO jl = 1, klon |
| 326 |
|
|
|
| 327 |
|
|
IF (ktest(jl)==1) THEN |
| 328 |
|
|
|
| 329 |
|
|
znum(jl) = znup(jl) |
| 330 |
|
|
zwind = (pulow(jl)*pum1(jl, jk)+pvlow(jl)*pvm1(jl, jk))/ & |
| 331 |
|
|
max(sqrt(pulow(jl)**2+pvlow(jl)**2), gvsec) |
| 332 |
|
|
zwind = max(sqrt(zwind**2), gvsec) |
| 333 |
|
|
zdelp = paphm1(jl, jk+1) - paphm1(jl, jk) |
| 334 |
|
|
zstabm = sqrt(max(pstab(jl, jk), gssec)) |
| 335 |
|
|
zstabp = sqrt(max(pstab(jl, jk+1), gssec)) |
| 336 |
|
|
zrhom = prho(jl, jk) |
| 337 |
|
|
zrhop = prho(jl, jk+1) |
| 338 |
|
|
znup(jl) = znup(jl) + (zdelp/rg)*((zstabp/zrhop+zstabm/zrhom)/2.)/ & |
| 339 |
|
|
zwind |
| 340 |
|
|
IF ((znum(jl)<=rpi/2.) .AND. (znup(jl)>rpi/2.) .AND. (kkcrith( & |
| 341 |
|
|
jl)==klev)) kkcrith(jl) = jk |
| 342 |
|
|
|
| 343 |
|
|
END IF |
| 344 |
|
|
|
| 345 |
|
|
end DO |
| 346 |
|
|
end DO |
| 347 |
|
|
|
| 348 |
|
|
DO jl = 1, klon |
| 349 |
|
|
kkcrith(jl) = min0(kkcrith(jl), kknu2(jl)) |
| 350 |
|
|
kkcrith(jl) = max0(kkcrith(jl), ilevh*2) |
| 351 |
|
|
end DO |
| 352 |
|
|
|
| 353 |
|
|
! directional info for flow blocking |
| 354 |
|
|
|
| 355 |
|
|
DO jk = ilevh, klev |
| 356 |
|
|
DO jl = 1, klon |
| 357 |
|
|
IF (jk>=kkenvh(jl)) THEN |
| 358 |
|
|
lo = (pum1(jl, jk)<gvsec) .AND. (pum1(jl, jk)>=-gvsec) |
| 359 |
|
|
IF (lo) THEN |
| 360 |
|
|
zu = pum1(jl, jk) + 2.*gvsec |
| 361 |
|
|
ELSE |
| 362 |
|
|
zu = pum1(jl, jk) |
| 363 |
|
|
END IF |
| 364 |
|
|
zphi = atan(pvm1(jl, jk)/zu) |
| 365 |
|
|
ppsi(jl, jk) = ptheta(jl)*rpi/180. - zphi |
| 366 |
|
|
END IF |
| 367 |
|
|
end DO |
| 368 |
|
|
end DO |
| 369 |
|
|
! forms the vertical 'leakiness' |
| 370 |
|
|
|
| 371 |
|
|
DO jk = ilevh, klev |
| 372 |
|
|
DO jl = 1, klon |
| 373 |
|
|
IF (jk>=kkenvh(jl)) THEN |
| 374 |
|
|
zggeenv = amax1(1., (pgeom1(jl, kkenvh(jl))+pgeom1(jl, & |
| 375 |
|
|
kkenvh(jl)-1))/2.) |
| 376 |
|
|
zggeom1 = amax1(pgeom1(jl, jk), 1.) |
| 377 |
|
|
zgvar = amax1(pstd(jl)*rg, 1.) |
| 378 |
|
|
!mod pzdep(jl, jk)=sqrt((zggeenv-zggeom1)/(zggeom1+zgvar)) |
| 379 |
|
|
pzdep(jl, jk) = (pgeom1(jl, kkenvh(jl)-1)-pgeom1(jl, jk))/ & |
| 380 |
|
|
(pgeom1(jl, kkenvh(jl)-1)-pgeom1(jl, klev)) |
| 381 |
|
|
END IF |
| 382 |
|
|
end DO |
| 383 |
|
|
end DO |
| 384 |
|
|
|
| 385 |
|
|
END SUBROUTINE orosetup |
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