| 1 |
SUBROUTINE orosetup(nlon, ktest, kkcrit, kkcrith, kcrit, kkenvh, kknu, kknu2, & |
| 2 |
paphm1, papm1, pum1, pvm1, ptm1, pgeom1, pstd, prho, pri, pstab, ptau, & |
| 3 |
pvph, ppsi, pzdep, pulow, pvlow, ptheta, pgamma, pmea, ppic, pval, pnu, & |
| 4 |
pd1, pd2, pdmod) |
| 5 |
|
| 6 |
! *gwsetup* |
| 7 |
! interface from *orodrag* |
| 8 |
! see ecmwf research department documentation of the "i.f.s." |
| 9 |
! modifications f.lott for the new-gwdrag scheme november 1993 |
| 10 |
|
| 11 |
USE dimens_m |
| 12 |
USE dimphy |
| 13 |
USE yomcst |
| 14 |
USE yoegwd |
| 15 |
|
| 16 |
IMPLICIT NONE |
| 17 |
|
| 18 |
! 0.1 arguments |
| 19 |
|
| 20 |
INTEGER nlon |
| 21 |
INTEGER jl, jk |
| 22 |
REAL zdelp |
| 23 |
|
| 24 |
INTEGER kkcrit(nlon), kkcrith(nlon), kcrit(nlon), ktest(nlon), & |
| 25 |
kkenvh(nlon) |
| 26 |
|
| 27 |
REAL paphm1(nlon, klev+1), papm1(nlon, klev), pum1(nlon, klev), & |
| 28 |
pvm1(nlon, klev), ptm1(nlon, klev), pgeom1(nlon, klev), & |
| 29 |
prho(nlon, klev+1), pri(nlon, klev+1), pstab(nlon, klev+1), & |
| 30 |
ptau(nlon, klev+1), pvph(nlon, klev+1), ppsi(nlon, klev+1), & |
| 31 |
pzdep(nlon, klev) |
| 32 |
REAL pulow(nlon), pvlow(nlon), ptheta(nlon), pgamma(nlon), pnu(nlon), & |
| 33 |
pd1(nlon), pd2(nlon), pdmod(nlon) |
| 34 |
REAL, INTENT (IN) :: pstd(nlon) |
| 35 |
REAL pmea(nlon), ppic(nlon), pval(nlon) |
| 36 |
|
| 37 |
! 0.2 local arrays |
| 38 |
|
| 39 |
INTEGER ilevm1, ilevm2, ilevh |
| 40 |
REAL zcons1, zcons2, zcons3, zhgeo |
| 41 |
REAL zu, zphi, zvt1, zvt2, zst, zvar, zdwind, zwind |
| 42 |
REAL zstabm, zstabp, zrhom, zrhop |
| 43 |
REAL zggeenv, zggeom1, zgvar |
| 44 |
LOGICAL lo |
| 45 |
LOGICAL ll1(klon, klev+1) |
| 46 |
INTEGER kknu(klon), kknu2(klon), kknub(klon), kknul(klon), kentp(klon), & |
| 47 |
ncount(klon) |
| 48 |
|
| 49 |
REAL zhcrit(klon, klev), zvpf(klon, klev), zdp(klon, klev) |
| 50 |
REAL znorm(klon), zb(klon), zc(klon), zulow(klon), zvlow(klon), & |
| 51 |
znup(klon), znum(klon) |
| 52 |
|
| 53 |
!------------------------------------------------------------------ |
| 54 |
|
| 55 |
!!print *, "Call sequence information: orosetup" |
| 56 |
! 1. initialization |
| 57 |
! 1.1 computational constants |
| 58 |
|
| 59 |
ilevm1 = klev - 1 |
| 60 |
ilevm2 = klev - 2 |
| 61 |
ilevh = klev/3 |
| 62 |
|
| 63 |
zcons1 = 1./rd |
| 64 |
!old zcons2=g**2/cpd |
| 65 |
zcons2 = rg**2/rcpd |
| 66 |
!old zcons3=1.5*api |
| 67 |
zcons3 = 1.5*rpi |
| 68 |
|
| 69 |
! 2. |
| 70 |
|
| 71 |
! 2.1 define low level wind, project winds in plane of |
| 72 |
! low level wind, determine sector in which to take |
| 73 |
! the variance and set indicator for critical levels. |
| 74 |
|
| 75 |
DO jl = 1, klon |
| 76 |
kknu(jl) = klev |
| 77 |
kknu2(jl) = klev |
| 78 |
kknub(jl) = klev |
| 79 |
kknul(jl) = klev |
| 80 |
pgamma(jl) = max(pgamma(jl), gtsec) |
| 81 |
ll1(jl, klev+1) = .FALSE. |
| 82 |
end DO |
| 83 |
|
| 84 |
! Ajouter une initialisation (L. Li, le 23fev99): |
| 85 |
|
| 86 |
DO jk = klev, ilevh, -1 |
| 87 |
DO jl = 1, klon |
| 88 |
ll1(jl, jk) = .FALSE. |
| 89 |
END DO |
| 90 |
END DO |
| 91 |
|
| 92 |
! define top of low level flow |
| 93 |
|
| 94 |
DO jk = klev, ilevh, -1 |
| 95 |
DO jl = 1, klon |
| 96 |
lo = (paphm1(jl, jk)/paphm1(jl, klev+1)) >= gsigcr |
| 97 |
IF (lo) THEN |
| 98 |
kkcrit(jl) = jk |
| 99 |
END IF |
| 100 |
zhcrit(jl, jk) = ppic(jl) |
| 101 |
zhgeo = pgeom1(jl, jk)/rg |
| 102 |
ll1(jl, jk) = (zhgeo>zhcrit(jl, jk)) |
| 103 |
IF (ll1(jl, jk) .NEQV. ll1(jl, jk+1)) THEN |
| 104 |
kknu(jl) = jk |
| 105 |
END IF |
| 106 |
IF ( .NOT. ll1(jl, ilevh)) kknu(jl) = ilevh |
| 107 |
end DO |
| 108 |
end DO |
| 109 |
DO jk = klev, ilevh, -1 |
| 110 |
DO jl = 1, klon |
| 111 |
zhcrit(jl, jk) = ppic(jl) - pval(jl) |
| 112 |
zhgeo = pgeom1(jl, jk)/rg |
| 113 |
ll1(jl, jk) = (zhgeo>zhcrit(jl, jk)) |
| 114 |
IF (ll1(jl, jk) .NEQV. ll1(jl, jk+1)) THEN |
| 115 |
kknu2(jl) = jk |
| 116 |
END IF |
| 117 |
IF ( .NOT. ll1(jl, ilevh)) kknu2(jl) = ilevh |
| 118 |
end DO |
| 119 |
end DO |
| 120 |
DO jk = klev, ilevh, -1 |
| 121 |
DO jl = 1, klon |
| 122 |
zhcrit(jl, jk) = amax1(ppic(jl)-pmea(jl), pmea(jl)-pval(jl)) |
| 123 |
zhgeo = pgeom1(jl, jk)/rg |
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ll1(jl, jk) = (zhgeo>zhcrit(jl, jk)) |
| 125 |
IF (ll1(jl, jk) .NEQV. ll1(jl, jk+1)) THEN |
| 126 |
kknub(jl) = jk |
| 127 |
END IF |
| 128 |
IF ( .NOT. ll1(jl, ilevh)) kknub(jl) = ilevh |
| 129 |
end DO |
| 130 |
end DO |
| 131 |
|
| 132 |
DO jl = 1, klon |
| 133 |
kknu(jl) = min(kknu(jl), nktopg) |
| 134 |
kknu2(jl) = min(kknu2(jl), nktopg) |
| 135 |
kknub(jl) = min(kknub(jl), nktopg) |
| 136 |
kknul(jl) = klev |
| 137 |
end DO |
| 138 |
|
| 139 |
!c* initialize various arrays |
| 140 |
|
| 141 |
DO jl = 1, klon |
| 142 |
prho(jl, klev+1) = 0.0 |
| 143 |
pstab(jl, klev+1) = 0.0 |
| 144 |
pstab(jl, 1) = 0.0 |
| 145 |
pri(jl, klev+1) = 9999.0 |
| 146 |
ppsi(jl, klev+1) = 0.0 |
| 147 |
pri(jl, 1) = 0.0 |
| 148 |
pvph(jl, 1) = 0.0 |
| 149 |
pulow(jl) = 0.0 |
| 150 |
pvlow(jl) = 0.0 |
| 151 |
zulow(jl) = 0.0 |
| 152 |
zvlow(jl) = 0.0 |
| 153 |
kkcrith(jl) = klev |
| 154 |
kkenvh(jl) = klev |
| 155 |
kentp(jl) = klev |
| 156 |
kcrit(jl) = 1 |
| 157 |
ncount(jl) = 0 |
| 158 |
ll1(jl, klev+1) = .FALSE. |
| 159 |
end DO |
| 160 |
|
| 161 |
! define low-level flow |
| 162 |
|
| 163 |
DO jk = klev, 2, -1 |
| 164 |
DO jl = 1, klon |
| 165 |
IF (ktest(jl)==1) THEN |
| 166 |
zdp(jl, jk) = papm1(jl, jk) - papm1(jl, jk-1) |
| 167 |
prho(jl, jk) = 2. * paphm1(jl, jk) * zcons1 & |
| 168 |
/ (ptm1(jl, jk) + ptm1(jl, jk-1)) |
| 169 |
pstab(jl, jk) = 2. * zcons2 / (ptm1(jl, jk) + ptm1(jl, jk-1)) & |
| 170 |
* (1. - rcpd * prho(jl, jk) & |
| 171 |
* (ptm1(jl, jk) - ptm1(jl, jk - 1)) / zdp(jl, jk)) |
| 172 |
pstab(jl, jk) = max(pstab(jl, jk), gssec) |
| 173 |
END IF |
| 174 |
end DO |
| 175 |
end DO |
| 176 |
|
| 177 |
! define blocked flow |
| 178 |
|
| 179 |
DO jk = klev, ilevh, -1 |
| 180 |
DO jl = 1, klon |
| 181 |
IF (jk>=kknub(jl) .AND. jk<=kknul(jl)) THEN |
| 182 |
pulow(jl) = pulow(jl) + pum1(jl, jk)*(paphm1(jl, jk+1)-paphm1(jl, jk) & |
| 183 |
) |
| 184 |
pvlow(jl) = pvlow(jl) + pvm1(jl, jk)*(paphm1(jl, jk+1)-paphm1(jl, jk) & |
| 185 |
) |
| 186 |
END IF |
| 187 |
end DO |
| 188 |
end DO |
| 189 |
DO jl = 1, klon |
| 190 |
pulow(jl) = pulow(jl)/(paphm1(jl, kknul(jl)+1)-paphm1(jl, kknub(jl))) |
| 191 |
pvlow(jl) = pvlow(jl)/(paphm1(jl, kknul(jl)+1)-paphm1(jl, kknub(jl))) |
| 192 |
znorm(jl) = max(sqrt(pulow(jl)**2+pvlow(jl)**2), gvsec) |
| 193 |
pvph(jl, klev+1) = znorm(jl) |
| 194 |
end DO |
| 195 |
|
| 196 |
! setup orography axes and define plane of profiles |
| 197 |
|
| 198 |
DO jl = 1, klon |
| 199 |
lo = (pulow(jl)<gvsec) .AND. (pulow(jl)>=-gvsec) |
| 200 |
IF (lo) THEN |
| 201 |
zu = pulow(jl) + 2.*gvsec |
| 202 |
ELSE |
| 203 |
zu = pulow(jl) |
| 204 |
END IF |
| 205 |
zphi = atan(pvlow(jl)/zu) |
| 206 |
ppsi(jl, klev+1) = ptheta(jl)*rpi/180. - zphi |
| 207 |
zb(jl) = 1. - 0.18*pgamma(jl) - 0.04*pgamma(jl)**2 |
| 208 |
zc(jl) = 0.48*pgamma(jl) + 0.3*pgamma(jl)**2 |
| 209 |
pd1(jl) = zb(jl) - (zb(jl)-zc(jl))*(sin(ppsi(jl, klev+1))**2) |
| 210 |
pd2(jl) = (zb(jl)-zc(jl))*sin(ppsi(jl, klev+1))*cos(ppsi(jl, klev+1)) |
| 211 |
pdmod(jl) = sqrt(pd1(jl)**2+pd2(jl)**2) |
| 212 |
end DO |
| 213 |
|
| 214 |
! define flow in plane of lowlevel stress |
| 215 |
|
| 216 |
DO jk = 1, klev |
| 217 |
DO jl = 1, klon |
| 218 |
IF (ktest(jl)==1) THEN |
| 219 |
zvt1 = pulow(jl)*pum1(jl, jk) + pvlow(jl)*pvm1(jl, jk) |
| 220 |
zvt2 = -pvlow(jl)*pum1(jl, jk) + pulow(jl)*pvm1(jl, jk) |
| 221 |
zvpf(jl, jk) = (zvt1*pd1(jl)+zvt2*pd2(jl))/(znorm(jl)*pdmod(jl)) |
| 222 |
END IF |
| 223 |
ptau(jl, jk) = 0.0 |
| 224 |
pzdep(jl, jk) = 0.0 |
| 225 |
ppsi(jl, jk) = 0.0 |
| 226 |
ll1(jl, jk) = .FALSE. |
| 227 |
end DO |
| 228 |
end DO |
| 229 |
DO jk = 2, klev |
| 230 |
DO jl = 1, klon |
| 231 |
IF (ktest(jl)==1) THEN |
| 232 |
zdp(jl, jk) = papm1(jl, jk) - papm1(jl, jk-1) |
| 233 |
pvph(jl, jk) = ((paphm1(jl, jk)-papm1(jl, jk-1))*zvpf(jl, jk)+(papm1( & |
| 234 |
jl, jk)-paphm1(jl, jk))*zvpf(jl, jk-1))/zdp(jl, jk) |
| 235 |
IF (pvph(jl, jk)<gvsec) THEN |
| 236 |
pvph(jl, jk) = gvsec |
| 237 |
kcrit(jl) = jk |
| 238 |
END IF |
| 239 |
END IF |
| 240 |
end DO |
| 241 |
end DO |
| 242 |
|
| 243 |
! 2.2 brunt-vaisala frequency and density at half levels. |
| 244 |
|
| 245 |
DO jk = ilevh, klev |
| 246 |
DO jl = 1, klon |
| 247 |
IF (ktest(jl)==1) THEN |
| 248 |
IF (jk>=(kknub(jl)+1) .AND. jk<=kknul(jl)) THEN |
| 249 |
zst = zcons2/ptm1(jl, jk)*(1.-rcpd*prho(jl, jk)*(ptm1(jl, & |
| 250 |
jk)-ptm1(jl, jk-1))/zdp(jl, jk)) |
| 251 |
pstab(jl, klev+1) = pstab(jl, klev+1) + zst*zdp(jl, jk) |
| 252 |
pstab(jl, klev+1) = max(pstab(jl, klev+1), gssec) |
| 253 |
prho(jl, klev+1) = prho(jl, klev+1) + paphm1(jl, jk)*2.*zdp(jl, jk)* & |
| 254 |
zcons1/(ptm1(jl, jk)+ptm1(jl, jk-1)) |
| 255 |
END IF |
| 256 |
END IF |
| 257 |
end DO |
| 258 |
end DO |
| 259 |
|
| 260 |
DO jl = 1, klon |
| 261 |
pstab(jl, klev + 1) = pstab(jl, klev + 1) & |
| 262 |
/ (papm1(jl, kknul(jl)) - papm1(jl, kknub(jl))) |
| 263 |
prho(jl, klev + 1) = prho(jl, klev + 1) & |
| 264 |
/ (papm1(jl, kknul(jl)) - papm1(jl, kknub(jl))) |
| 265 |
zvar = pstd(jl) |
| 266 |
end DO |
| 267 |
|
| 268 |
! 2.3 mean flow richardson number. |
| 269 |
! and critical height for froude layer |
| 270 |
|
| 271 |
DO jk = 2, klev |
| 272 |
DO jl = 1, klon |
| 273 |
IF (ktest(jl)==1) THEN |
| 274 |
zdwind = max(abs(zvpf(jl, jk)-zvpf(jl, jk-1)), gvsec) |
| 275 |
pri(jl, jk) = pstab(jl, jk)*(zdp(jl, jk)/(rg*prho(jl, jk)*zdwind))**2 |
| 276 |
pri(jl, jk) = max(pri(jl, jk), grcrit) |
| 277 |
END IF |
| 278 |
end DO |
| 279 |
end do |
| 280 |
|
| 281 |
! define top of 'envelope' layer |
| 282 |
|
| 283 |
DO jl = 1, klon |
| 284 |
pnu(jl) = 0.0 |
| 285 |
znum(jl) = 0.0 |
| 286 |
end DO |
| 287 |
|
| 288 |
DO jk = 2, klev - 1 |
| 289 |
DO jl = 1, klon |
| 290 |
|
| 291 |
IF (ktest(jl)==1) THEN |
| 292 |
|
| 293 |
IF (jk>=kknub(jl)) THEN |
| 294 |
|
| 295 |
znum(jl) = pnu(jl) |
| 296 |
zwind = (pulow(jl)*pum1(jl, jk)+pvlow(jl)*pvm1(jl, jk))/ & |
| 297 |
max(sqrt(pulow(jl)**2+pvlow(jl)**2), gvsec) |
| 298 |
zwind = max(sqrt(zwind**2), gvsec) |
| 299 |
zdelp = paphm1(jl, jk+1) - paphm1(jl, jk) |
| 300 |
zstabm = sqrt(max(pstab(jl, jk), gssec)) |
| 301 |
zstabp = sqrt(max(pstab(jl, jk+1), gssec)) |
| 302 |
zrhom = prho(jl, jk) |
| 303 |
zrhop = prho(jl, jk+1) |
| 304 |
pnu(jl) = pnu(jl) + (zdelp/rg)*((zstabp/zrhop+zstabm/zrhom)/2.)/ & |
| 305 |
zwind |
| 306 |
IF ((znum(jl)<=gfrcrit) .AND. (pnu(jl)>gfrcrit) .AND. (kkenvh( & |
| 307 |
jl)==klev)) kkenvh(jl) = jk |
| 308 |
|
| 309 |
END IF |
| 310 |
|
| 311 |
END IF |
| 312 |
|
| 313 |
end DO |
| 314 |
end do |
| 315 |
|
| 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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