| 1 |
cheisey |
1.6 |
c $Header: /u/u0/gcmpack/MITgcm/pkg/exf/exf_getffields.F,v 1.5 2002/12/17 19:47:41 cheisey Exp $ |
| 2 |
heimbach |
1.1 |
|
| 3 |
|
|
#include "EXF_CPPOPTIONS.h" |
| 4 |
|
|
|
| 5 |
heimbach |
1.3 |
subroutine exf_GetFFields( mycurrenttime, mycurrentiter, mythid ) |
| 6 |
heimbach |
1.1 |
|
| 7 |
|
|
c ================================================================== |
| 8 |
|
|
c SUBROUTINE exf_GetFFields |
| 9 |
|
|
c ================================================================== |
| 10 |
|
|
c |
| 11 |
|
|
c o Get the surface fluxes either from file or as derived from bulk |
| 12 |
|
|
c formulae that use the atmospheric state. |
| 13 |
|
|
c |
| 14 |
|
|
c The calculation of the bulk surface fluxes has been adapted from |
| 15 |
|
|
c the NCOM model which uses the formulae given in Large and Pond |
| 16 |
|
|
c (1981 & 1982 ) |
| 17 |
|
|
c |
| 18 |
|
|
c |
| 19 |
|
|
c Header taken from NCOM version: ncom1.4.1 |
| 20 |
|
|
c ----------------------------------------- |
| 21 |
|
|
c |
| 22 |
|
|
c Following procedures and coefficients in Large and Pond |
| 23 |
|
|
c (1981 ; 1982) |
| 24 |
|
|
c |
| 25 |
|
|
c Output: Bulk estimates of the turbulent surface fluxes. |
| 26 |
|
|
c ------- |
| 27 |
|
|
c |
| 28 |
|
|
c hs - sensible heat flux (W/m^2), into ocean |
| 29 |
|
|
c hl - latent heat flux (W/m^2), into ocean |
| 30 |
|
|
c |
| 31 |
|
|
c Input: |
| 32 |
|
|
c ------ |
| 33 |
|
|
c |
| 34 |
|
|
c us - mean wind speed (m/s) at height hu (m) |
| 35 |
|
|
c th - mean air temperature (K) at height ht (m) |
| 36 |
|
|
c qh - mean air humidity (kg/kg) at height hq (m) |
| 37 |
|
|
c sst - sea surface temperature (K) |
| 38 |
|
|
c tk0 - Kelvin temperature at 0 Celsius (K) |
| 39 |
|
|
c |
| 40 |
|
|
c Assume 1) a neutral 10m drag coefficient = |
| 41 |
|
|
c |
| 42 |
|
|
c cdn = .0027/u10 + .000142 + .0000764 u10 |
| 43 |
|
|
c |
| 44 |
|
|
c 2) a neutral 10m stanton number = |
| 45 |
|
|
c |
| 46 |
|
|
c ctn = .0327 sqrt(cdn), unstable |
| 47 |
|
|
c ctn = .0180 sqrt(cdn), stable |
| 48 |
|
|
c |
| 49 |
|
|
c 3) a neutral 10m dalton number = |
| 50 |
|
|
c |
| 51 |
|
|
c cen = .0346 sqrt(cdn) |
| 52 |
|
|
c |
| 53 |
|
|
c 4) the saturation humidity of air at |
| 54 |
|
|
c |
| 55 |
|
|
c t(k) = exf_BulkqSat(t) (kg/m^3) |
| 56 |
|
|
c |
| 57 |
|
|
c Note: 1) here, tstar = <wt>/u*, and qstar = <wq>/u*. |
| 58 |
|
|
c 2) wind speeds should all be above a minimum speed, |
| 59 |
|
|
c say 0.5 m/s. |
| 60 |
|
|
c 3) with optional iteration loop, niter=3, should suffice. |
| 61 |
|
|
c 4) this version is for analyses inputs with hu = 10m and |
| 62 |
|
|
c ht = hq. |
| 63 |
|
|
c 5) sst enters in Celsius. |
| 64 |
|
|
c |
| 65 |
|
|
c ------------------------------------ |
| 66 |
|
|
c |
| 67 |
|
|
c By setting CPP options in the header file *EXF_CPPOPTIONS.h* it |
| 68 |
|
|
c is possible to combine data sets in four different ways: |
| 69 |
|
|
c |
| 70 |
|
|
c The following options are available: |
| 71 |
|
|
c |
| 72 |
|
|
c ALLOW_ATM_TEMP (UAT) |
| 73 |
|
|
c ALLOW_ATM_WIND (UAW) |
| 74 |
|
|
c |
| 75 |
|
|
c |
| 76 |
|
|
c UAT | UAW | action |
| 77 |
|
|
c ---------------------------------------------------- |
| 78 |
|
|
c undefined | undefined | Use surface fluxes. |
| 79 |
|
|
c undefined | defined | Assume cdn(u) given to |
| 80 |
|
|
c | | infer the wind stress. |
| 81 |
|
|
c defined | undefined | Compute wind field from |
| 82 |
|
|
c | | given stress assuming a |
| 83 |
|
|
c | | linear relation. |
| 84 |
|
|
c defined | defined | Use the bulk formulae. |
| 85 |
|
|
c ---------------------------------------------------- |
| 86 |
|
|
c |
| 87 |
|
|
c Implementations of the bulk formulae exist for the follwing |
| 88 |
|
|
c versions of the MITgcm: |
| 89 |
|
|
c |
| 90 |
|
|
c MITgcm : Patrick Heimbach |
| 91 |
|
|
c MITgcmUV: Christian Eckert |
| 92 |
|
|
c |
| 93 |
|
|
c started: Christian Eckert eckert@mit.edu 27-Aug-1999 |
| 94 |
|
|
c |
| 95 |
|
|
c changed: Christian Eckert eckert@mit.edu 14-Jan-2000 |
| 96 |
|
|
c - restructured the original version in order to have a |
| 97 |
|
|
c better interface to the MITgcmUV. |
| 98 |
|
|
c |
| 99 |
|
|
c Christian Eckert eckert@mit.edu 12-Feb-2000 |
| 100 |
|
|
c - Changed Routine names (package prefix: exf_) |
| 101 |
|
|
c |
| 102 |
|
|
c Patrick Heimbach, heimbach@mit.edu 04-May-2000 |
| 103 |
|
|
c - changed the handling of precip and sflux with respect |
| 104 |
|
|
c to CPP options ALLOW_BULKFORMULAE and ALLOW_ATM_TEMP |
| 105 |
|
|
c - included some CPP flags ALLOW_BULKFORMULAE to make |
| 106 |
|
|
c sure ALLOW_ATM_TEMP, ALLOW_ATM_WIND are used only in |
| 107 |
|
|
c conjunction with defined ALLOW_BULKFORMULAE |
| 108 |
|
|
c - statement functions discarded |
| 109 |
|
|
c |
| 110 |
|
|
c Ralf.Giering@FastOpt.de 25-Mai-2000 |
| 111 |
heimbach |
1.4 |
c - total rewrite using new subroutines |
| 112 |
heimbach |
1.1 |
c |
| 113 |
heimbach |
1.4 |
c Detlef Stammer: include river run-off. Nov. 21, 2001 |
| 114 |
|
|
c |
| 115 |
|
|
c heimbach@mit.edu, 10-Jan-2002 |
| 116 |
|
|
c - changes to enable field swapping |
| 117 |
heimbach |
1.1 |
c |
| 118 |
|
|
c ================================================================== |
| 119 |
|
|
c SUBROUTINE exf_GetFFields |
| 120 |
|
|
c ================================================================== |
| 121 |
|
|
|
| 122 |
|
|
implicit none |
| 123 |
|
|
|
| 124 |
|
|
c == global variables == |
| 125 |
|
|
|
| 126 |
|
|
#include "EEPARAMS.h" |
| 127 |
|
|
#include "SIZE.h" |
| 128 |
|
|
#include "PARAMS.h" |
| 129 |
|
|
#include "DYNVARS.h" |
| 130 |
|
|
#include "GRID.h" |
| 131 |
|
|
|
| 132 |
|
|
#include "exf_fields.h" |
| 133 |
|
|
#include "exf_constants.h" |
| 134 |
|
|
|
| 135 |
heimbach |
1.3 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 136 |
|
|
#include "tamc.h" |
| 137 |
|
|
#endif |
| 138 |
|
|
|
| 139 |
heimbach |
1.1 |
c == routine arguments == |
| 140 |
|
|
|
| 141 |
|
|
integer mythid |
| 142 |
|
|
integer mycurrentiter |
| 143 |
|
|
_RL mycurrenttime |
| 144 |
|
|
|
| 145 |
|
|
c == local variables == |
| 146 |
|
|
|
| 147 |
|
|
integer bi,bj |
| 148 |
|
|
integer i,j,k |
| 149 |
|
|
|
| 150 |
|
|
#ifdef ALLOW_BULKFORMULAE |
| 151 |
|
|
|
| 152 |
|
|
#ifdef ALLOW_ATM_TEMP |
| 153 |
|
|
integer iter |
| 154 |
|
|
_RL aln |
| 155 |
|
|
_RL delq |
| 156 |
|
|
_RL deltap |
| 157 |
|
|
_RL hqol |
| 158 |
|
|
_RL htol |
| 159 |
|
|
_RL huol |
| 160 |
|
|
_RL psimh |
| 161 |
|
|
_RL psixh |
| 162 |
|
|
_RL qstar |
| 163 |
|
|
_RL rd |
| 164 |
|
|
_RL re |
| 165 |
|
|
_RL rdn |
| 166 |
|
|
_RL rh |
| 167 |
heimbach |
1.3 |
_RL ssttmp |
| 168 |
heimbach |
1.1 |
_RL ssq |
| 169 |
|
|
_RL stable |
| 170 |
|
|
_RL tstar |
| 171 |
|
|
_RL t0 |
| 172 |
|
|
_RL ustar |
| 173 |
|
|
_RL uzn |
| 174 |
heimbach |
1.3 |
_RL shn |
| 175 |
heimbach |
1.1 |
_RL xsq |
| 176 |
|
|
_RL x |
| 177 |
heimbach |
1.3 |
_RL tau |
| 178 |
heimbach |
1.1 |
_RL evap(1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
| 179 |
heimbach |
1.3 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 180 |
|
|
integer ikey_1 |
| 181 |
|
|
integer ikey_2 |
| 182 |
|
|
#endif |
| 183 |
heimbach |
1.1 |
#endif /* ALLOW_ATM_TEMP */ |
| 184 |
|
|
|
| 185 |
heimbach |
1.3 |
_RL ustmp |
| 186 |
heimbach |
1.1 |
_RL us |
| 187 |
|
|
_RL cw |
| 188 |
|
|
_RL sw |
| 189 |
|
|
_RL sh |
| 190 |
|
|
_RL hs(1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
| 191 |
|
|
_RL hl(1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
| 192 |
|
|
_RL hfl |
| 193 |
|
|
|
| 194 |
|
|
#endif /* ALLOW_BULKFORMULAE */ |
| 195 |
|
|
|
| 196 |
|
|
c == external functions == |
| 197 |
|
|
|
| 198 |
|
|
integer ilnblnk |
| 199 |
|
|
external ilnblnk |
| 200 |
|
|
|
| 201 |
|
|
#ifdef ALLOW_BULKFORMULAE |
| 202 |
|
|
_RL exf_BulkqSat |
| 203 |
|
|
external exf_BulkqSat |
| 204 |
|
|
_RL exf_BulkCdn |
| 205 |
|
|
external exf_BulkCdn |
| 206 |
|
|
_RL exf_BulkRhn |
| 207 |
|
|
external exf_BulkRhn |
| 208 |
|
|
#endif /* ALLOW_BULKFORMULAE */ |
| 209 |
cheisey |
1.6 |
|
| 210 |
|
|
#ifndef ALLOW_ATM_WIND |
| 211 |
|
|
_RL TMP1 |
| 212 |
|
|
_RL TMP2 |
| 213 |
|
|
_RL TMP3 |
| 214 |
|
|
_RL TMP4 |
| 215 |
|
|
_RL TMP5 |
| 216 |
|
|
#endif |
| 217 |
heimbach |
1.1 |
|
| 218 |
|
|
c == end of interface == |
| 219 |
|
|
|
| 220 |
|
|
c determine forcing field records |
| 221 |
|
|
|
| 222 |
|
|
#ifdef ALLOW_BULKFORMULAE |
| 223 |
|
|
|
| 224 |
heimbach |
1.3 |
#if (defined (ALLOW_ATM_TEMP) || defined (ALLOW_ATM_WIND)) |
| 225 |
heimbach |
1.4 |
cph This statement cannot be a PARAMETER statement in the header, |
| 226 |
|
|
cph but must come here; it's not fortran77 standard |
| 227 |
heimbach |
1.3 |
aln = log(ht/zref) |
| 228 |
|
|
#endif |
| 229 |
|
|
|
| 230 |
heimbach |
1.1 |
c Determine where we are in time and set counters, flags and |
| 231 |
|
|
c the linear interpolation factors accordingly. |
| 232 |
|
|
#ifdef ALLOW_ATM_TEMP |
| 233 |
|
|
c Atmospheric temperature. |
| 234 |
heimbach |
1.3 |
call exf_set_atemp( mycurrenttime, mycurrentiter, mythid ) |
| 235 |
heimbach |
1.1 |
|
| 236 |
|
|
c Atmospheric humidity. |
| 237 |
heimbach |
1.3 |
call exf_set_aqh( mycurrenttime, mycurrentiter, mythid ) |
| 238 |
heimbach |
1.1 |
|
| 239 |
|
|
c Net long wave radiative flux. |
| 240 |
heimbach |
1.3 |
call exf_set_lwflux( mycurrenttime, mycurrentiter, mythid ) |
| 241 |
heimbach |
1.1 |
|
| 242 |
|
|
c Net short wave radiative flux. |
| 243 |
heimbach |
1.3 |
call exf_set_swflux( mycurrenttime, mycurrentiter, mythid ) |
| 244 |
heimbach |
1.1 |
|
| 245 |
|
|
c Precipitation. |
| 246 |
heimbach |
1.3 |
call exf_set_precip( mycurrenttime, mycurrentiter, mythid ) |
| 247 |
heimbach |
1.1 |
|
| 248 |
heimbach |
1.3 |
#ifdef ALLOW_ATEMP_CONTROL |
| 249 |
|
|
call ctrl_getatemp ( mycurrenttime, mycurrentiter, mythid ) |
| 250 |
|
|
#endif |
| 251 |
|
|
|
| 252 |
|
|
#ifdef ALLOW_AQH_CONTROL |
| 253 |
|
|
call ctrl_getaqh ( mycurrenttime, mycurrentiter, mythid ) |
| 254 |
|
|
#endif |
| 255 |
heimbach |
1.1 |
|
| 256 |
|
|
#else |
| 257 |
|
|
|
| 258 |
|
|
c Atmospheric heat flux. |
| 259 |
heimbach |
1.3 |
call exf_set_hflux( mycurrenttime, mycurrentiter, mythid ) |
| 260 |
heimbach |
1.1 |
|
| 261 |
|
|
c Salt flux. |
| 262 |
heimbach |
1.3 |
call exf_set_sflux( mycurrenttime, mycurrentiter, mythid ) |
| 263 |
heimbach |
1.1 |
|
| 264 |
|
|
#ifdef ALLOW_KPP |
| 265 |
|
|
c Net short wave radiative flux. |
| 266 |
heimbach |
1.3 |
call exf_set_swflux( mycurrenttime, mycurrentiter, mythid ) |
| 267 |
heimbach |
1.1 |
|
| 268 |
|
|
#endif /* ALLOW_KPP */ |
| 269 |
|
|
|
| 270 |
|
|
#endif /* ALLOW_ATM_TEMP */ |
| 271 |
|
|
|
| 272 |
|
|
#ifdef ALLOW_ATM_WIND |
| 273 |
|
|
c Zonal wind. |
| 274 |
heimbach |
1.3 |
call exf_set_uwind( mycurrenttime, mycurrentiter, mythid ) |
| 275 |
heimbach |
1.1 |
|
| 276 |
|
|
c Meridional wind. |
| 277 |
heimbach |
1.3 |
call exf_set_vwind( mycurrenttime, mycurrentiter, mythid ) |
| 278 |
|
|
|
| 279 |
|
|
#ifdef ALLOW_UWIND_CONTROL |
| 280 |
|
|
call ctrl_getuwind ( mycurrenttime, mycurrentiter, mythid ) |
| 281 |
|
|
#endif |
| 282 |
|
|
|
| 283 |
|
|
#ifdef ALLOW_VWIND_CONTROL |
| 284 |
|
|
call ctrl_getvwind ( mycurrenttime, mycurrentiter, mythid ) |
| 285 |
|
|
#endif |
| 286 |
heimbach |
1.1 |
|
| 287 |
|
|
#else |
| 288 |
|
|
c Zonal wind stress. |
| 289 |
heimbach |
1.3 |
call exf_set_ustress( mycurrenttime, mycurrentiter, mythid ) |
| 290 |
heimbach |
1.1 |
|
| 291 |
|
|
c Meridional wind stress. |
| 292 |
heimbach |
1.3 |
call exf_set_vstress( mycurrenttime, mycurrentiter, mythid ) |
| 293 |
heimbach |
1.1 |
|
| 294 |
|
|
#endif /* ALLOW_ATM_WIND */ |
| 295 |
|
|
|
| 296 |
|
|
#else /* ALLOW_BULKFORMULAE undefined */ |
| 297 |
|
|
c Atmospheric heat flux. |
| 298 |
heimbach |
1.3 |
call exf_set_hflux( mycurrenttime, mycurrentiter, mythid ) |
| 299 |
heimbach |
1.1 |
|
| 300 |
|
|
c Salt flux. |
| 301 |
heimbach |
1.3 |
call exf_set_sflux( mycurrenttime, mycurrentiter, mythid ) |
| 302 |
heimbach |
1.1 |
|
| 303 |
|
|
c Zonal wind stress. |
| 304 |
heimbach |
1.3 |
call exf_set_ustress( mycurrenttime, mycurrentiter, mythid ) |
| 305 |
heimbach |
1.1 |
|
| 306 |
|
|
c Meridional wind stress. |
| 307 |
heimbach |
1.3 |
call exf_set_vstress( mycurrenttime, mycurrentiter, mythid ) |
| 308 |
heimbach |
1.1 |
|
| 309 |
|
|
#ifdef ALLOW_KPP |
| 310 |
|
|
c Net short wave radiative flux. |
| 311 |
heimbach |
1.3 |
call exf_set_swflux( mycurrenttime, mycurrentiter, mythid ) |
| 312 |
|
|
#endif |
| 313 |
heimbach |
1.1 |
|
| 314 |
|
|
#endif /* ALLOW_BULKFORMULAE */ |
| 315 |
|
|
|
| 316 |
|
|
c Loop over tiles. |
| 317 |
heimbach |
1.3 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 318 |
|
|
C-- HPF directive to help TAMC |
| 319 |
|
|
CHPF$ INDEPENDENT |
| 320 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
| 321 |
heimbach |
1.1 |
do bj = mybylo(mythid),mybyhi(mythid) |
| 322 |
heimbach |
1.3 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 323 |
|
|
C-- HPF directive to help TAMC |
| 324 |
|
|
CHPF$ INDEPENDENT |
| 325 |
|
|
#endif |
| 326 |
heimbach |
1.1 |
do bi = mybxlo(mythid),mybxhi(mythid) |
| 327 |
heimbach |
1.3 |
|
| 328 |
heimbach |
1.1 |
k = 1 |
| 329 |
|
|
|
| 330 |
|
|
do j = 1-oly,sny+oly |
| 331 |
|
|
do i = 1-olx,snx+olx |
| 332 |
|
|
|
| 333 |
|
|
#ifdef ALLOW_BULKFORMULAE |
| 334 |
|
|
|
| 335 |
heimbach |
1.3 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 336 |
|
|
act1 = bi - myBxLo(myThid) |
| 337 |
|
|
max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
| 338 |
|
|
act2 = bj - myByLo(myThid) |
| 339 |
|
|
max2 = myByHi(myThid) - myByLo(myThid) + 1 |
| 340 |
|
|
act3 = myThid - 1 |
| 341 |
|
|
max3 = nTx*nTy |
| 342 |
|
|
act4 = ikey_dynamics - 1 |
| 343 |
|
|
|
| 344 |
|
|
ikey_1 = i |
| 345 |
|
|
& + sNx*(j-1) |
| 346 |
|
|
& + sNx*sNy*act1 |
| 347 |
|
|
& + sNx*sNy*max1*act2 |
| 348 |
|
|
& + sNx*sNy*max1*max2*act3 |
| 349 |
|
|
& + sNx*sNy*max1*max2*max3*act4 |
| 350 |
|
|
#endif |
| 351 |
|
|
|
| 352 |
heimbach |
1.1 |
c Compute the turbulent surface fluxes. |
| 353 |
|
|
c (Bulk formulae estimates) |
| 354 |
|
|
|
| 355 |
|
|
#ifdef ALLOW_ATM_WIND |
| 356 |
|
|
c Wind speed and direction. |
| 357 |
heimbach |
1.3 |
ustmp = uwind(i,j,bi,bj)*uwind(i,j,bi,bj) + |
| 358 |
|
|
& vwind(i,j,bi,bj)*vwind(i,j,bi,bj) |
| 359 |
|
|
if ( ustmp .ne. 0. _d 0 ) then |
| 360 |
|
|
us = sqrt(ustmp) |
| 361 |
heimbach |
1.1 |
cw = uwind(i,j,bi,bj)/us |
| 362 |
|
|
sw = vwind(i,j,bi,bj)/us |
| 363 |
|
|
else |
| 364 |
heimbach |
1.3 |
us = 0. _d 0 |
| 365 |
heimbach |
1.1 |
cw = 0. _d 0 |
| 366 |
|
|
sw = 0. _d 0 |
| 367 |
|
|
endif |
| 368 |
|
|
sh = max(us,umin) |
| 369 |
|
|
#else |
| 370 |
|
|
#ifdef ALLOW_ATM_TEMP |
| 371 |
|
|
|
| 372 |
heimbach |
1.3 |
c The variables us, sh and rdn have to be computed from |
| 373 |
|
|
c given wind stresses inverting relationship for neutral |
| 374 |
|
|
c drag coeff. cdn. |
| 375 |
heimbach |
1.1 |
c The inversion is based on linear and quadratic form of |
| 376 |
|
|
c cdn(umps); ustar can be directly computed from stress; |
| 377 |
|
|
|
| 378 |
heimbach |
1.3 |
ustmp = ustress(i,j,bi,bj)*ustress(i,j,bi,bj) + |
| 379 |
|
|
& vstress(i,j,bi,bj)*vstress(i,j,bi,bj) |
| 380 |
|
|
if ( ustmp .ne. 0. _d 0 ) then |
| 381 |
|
|
ustar = sqrt(ustmp/atmrho) |
| 382 |
|
|
cw = ustress(i,j,bi,bj)/sqrt(ustmp) |
| 383 |
|
|
sw = vstress(i,j,bi,bj)/sqrt(ustmp) |
| 384 |
|
|
else |
| 385 |
|
|
ustar = 0. _d 0 |
| 386 |
|
|
cw = 0. _d 0 |
| 387 |
|
|
sw = 0. _d 0 |
| 388 |
|
|
endif |
| 389 |
heimbach |
1.1 |
|
| 390 |
|
|
if ( ustar .eq. 0. _d 0 ) then |
| 391 |
|
|
us = 0. _d 0 |
| 392 |
|
|
else if ( ustar .lt. ustofu11 ) then |
| 393 |
|
|
tmp1 = -cquadrag_2/cquadrag_1/2 |
| 394 |
|
|
tmp2 = sqrt(tmp1*tmp1 + ustar*ustar/cquadrag_1) |
| 395 |
|
|
us = sqrt(tmp1 + tmp2) |
| 396 |
|
|
else |
| 397 |
|
|
tmp3 = clindrag_2/clindrag_1/3 |
| 398 |
|
|
tmp4 = ustar*ustar/clindrag_1/2 - tmp3**3 |
| 399 |
|
|
tmp5 = sqrt(ustar*ustar/clindrag_1* |
| 400 |
|
|
& (ustar*ustar/clindrag_1/4 - tmp3**3)) |
| 401 |
|
|
us = (tmp4 + tmp5)**(1/3) + |
| 402 |
|
|
& tmp3**2 * (tmp4 + tmp5)**(-1/3) - tmp3 |
| 403 |
|
|
endif |
| 404 |
|
|
|
| 405 |
|
|
if ( us .ne. 0 ) then |
| 406 |
|
|
rdn = ustar/us |
| 407 |
|
|
else |
| 408 |
|
|
rdn = 0. _d 0 |
| 409 |
|
|
end if |
| 410 |
|
|
|
| 411 |
|
|
sh = max(us,umin) |
| 412 |
|
|
#endif /* ALLOW_ATM_TEMP */ |
| 413 |
|
|
#endif /* ALLOW_ATM_WIND */ |
| 414 |
|
|
|
| 415 |
|
|
#ifdef ALLOW_ATM_TEMP |
| 416 |
heimbach |
1.3 |
|
| 417 |
heimbach |
1.1 |
c Initial guess: z/l=0.0; hu=ht=hq=z |
| 418 |
|
|
c Iterations: converge on z/l and hence the fluxes. |
| 419 |
|
|
c t0 : virtual temperature (K) |
| 420 |
|
|
c ssq : sea surface humidity (kg/kg) |
| 421 |
|
|
c deltap : potential temperature diff (K) |
| 422 |
|
|
|
| 423 |
|
|
if ( atemp(i,j,bi,bj) .ne. 0. _d 0 ) then |
| 424 |
|
|
t0 = atemp(i,j,bi,bj)* |
| 425 |
|
|
& (exf_one + humid_fac*aqh(i,j,bi,bj)) |
| 426 |
heimbach |
1.3 |
ssttmp = theta(i,j,k,bi,bj) |
| 427 |
heimbach |
1.1 |
ssq = saltsat* |
| 428 |
heimbach |
1.3 |
& exf_BulkqSat(ssttmp + cen2kel)/ |
| 429 |
heimbach |
1.1 |
& atmrho |
| 430 |
|
|
deltap = atemp(i,j,bi,bj) + gamma_blk*ht - |
| 431 |
heimbach |
1.3 |
& ssttmp - cen2kel |
| 432 |
heimbach |
1.1 |
delq = aqh(i,j,bi,bj) - ssq |
| 433 |
|
|
stable = exf_half + sign(exf_half, deltap) |
| 434 |
heimbach |
1.3 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 435 |
|
|
CADJ STORE sh = comlev1_exf_1, key = ikey_1 |
| 436 |
|
|
#endif |
| 437 |
heimbach |
1.1 |
rdn = sqrt(exf_BulkCdn(sh)) |
| 438 |
|
|
ustar = rdn*sh |
| 439 |
|
|
tstar = exf_BulkRhn(stable)*deltap |
| 440 |
|
|
qstar = cdalton*delq |
| 441 |
|
|
|
| 442 |
|
|
do iter = 1,niter_bulk |
| 443 |
|
|
|
| 444 |
heimbach |
1.3 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 445 |
|
|
ikey_2 = iter |
| 446 |
|
|
& + niter_bulk*(i-1) |
| 447 |
|
|
& + sNx*niter_bulk*(j-1) |
| 448 |
|
|
& + sNx*niter_bulk*sNy*act1 |
| 449 |
|
|
& + sNx*niter_bulk*sNy*max1*act2 |
| 450 |
|
|
& + sNx*niter_bulk*sNy*max1*max2*act3 |
| 451 |
|
|
& + sNx*niter_bulk*sNy*max1*max2*max3*act4 |
| 452 |
|
|
#endif |
| 453 |
|
|
|
| 454 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
| 455 |
|
|
CADJ STORE rdn = comlev1_exf_2, key = ikey_2 |
| 456 |
|
|
CADJ STORE ustar = comlev1_exf_2, key = ikey_2 |
| 457 |
|
|
CADJ STORE qstar = comlev1_exf_2, key = ikey_2 |
| 458 |
|
|
CADJ STORE tstar = comlev1_exf_2, key = ikey_2 |
| 459 |
|
|
CADJ STORE sh = comlev1_exf_2, key = ikey_2 |
| 460 |
|
|
CADJ STORE us = comlev1_exf_2, key = ikey_2 |
| 461 |
|
|
#endif |
| 462 |
|
|
|
| 463 |
heimbach |
1.1 |
huol = czol*(tstar/t0 + |
| 464 |
|
|
& qstar/(exf_one/humid_fac+aqh(i,j,bi,bj)))/ |
| 465 |
|
|
& ustar**2 |
| 466 |
|
|
huol = max(huol,zolmin) |
| 467 |
|
|
stable = exf_half + sign(exf_half, huol) |
| 468 |
|
|
htol = huol*ht/hu |
| 469 |
|
|
hqol = huol*hq/hu |
| 470 |
|
|
|
| 471 |
|
|
c Evaluate all stability functions assuming hq = ht. |
| 472 |
|
|
xsq = max(sqrt(abs(exf_one - 16.*huol)),exf_one) |
| 473 |
|
|
x = sqrt(xsq) |
| 474 |
|
|
psimh = -psim_fac*huol*stable + |
| 475 |
|
|
& (exf_one - stable)* |
| 476 |
|
|
& log((exf_one + x*(exf_two + x))* |
| 477 |
|
|
& (exf_one + xsq)/8.) - exf_two*atan(x) + |
| 478 |
|
|
& pi*exf_half |
| 479 |
|
|
xsq = max(sqrt(abs(exf_one - 16.*htol)),exf_one) |
| 480 |
|
|
psixh = -psim_fac*htol*stable + (exf_one - stable)* |
| 481 |
|
|
& exf_two*log((exf_one + xsq)/exf_two) |
| 482 |
|
|
|
| 483 |
|
|
c Shift wind speed using old coefficient |
| 484 |
heimbach |
1.3 |
ccc rd = rdn/(exf_one + rdn/karman* |
| 485 |
|
|
ccc & (log(hu/zref) - psimh) ) |
| 486 |
heimbach |
1.1 |
rd = rdn/(exf_one - rdn/karman*psimh ) |
| 487 |
heimbach |
1.3 |
shn = sh*rd/rdn |
| 488 |
|
|
uzn = max(shn, umin) |
| 489 |
heimbach |
1.1 |
|
| 490 |
|
|
c Update the transfer coefficients at 10 meters |
| 491 |
|
|
c and neutral stability. |
| 492 |
heimbach |
1.3 |
|
| 493 |
heimbach |
1.1 |
rdn = sqrt(exf_BulkCdn(uzn)) |
| 494 |
|
|
|
| 495 |
|
|
c Shift all coefficients to the measurement height |
| 496 |
|
|
c and stability. |
| 497 |
|
|
c rd = rdn/(exf_one + rdn/karman*(log(hu/zref) - psimh)) |
| 498 |
|
|
rd = rdn/(exf_one - rdn/karman*psimh) |
| 499 |
|
|
rh = exf_BulkRhn(stable)/(exf_one + |
| 500 |
|
|
& exf_BulkRhn(stable)/ |
| 501 |
|
|
& karman*(aln - psixh)) |
| 502 |
|
|
re = cdalton/(exf_one + cdalton/karman*(aln - psixh)) |
| 503 |
|
|
|
| 504 |
|
|
c Update ustar, tstar, qstar using updated, shifted |
| 505 |
|
|
c coefficients. |
| 506 |
|
|
ustar = rd*sh |
| 507 |
|
|
qstar = re*delq |
| 508 |
|
|
tstar = rh*deltap |
| 509 |
heimbach |
1.3 |
tau = atmrho*ustar**2 |
| 510 |
|
|
tau = tau*us/sh |
| 511 |
heimbach |
1.1 |
|
| 512 |
|
|
enddo |
| 513 |
|
|
|
| 514 |
heimbach |
1.3 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 515 |
|
|
CADJ STORE ustar = comlev1_exf_1, key = ikey_1 |
| 516 |
|
|
CADJ STORE qstar = comlev1_exf_1, key = ikey_1 |
| 517 |
|
|
CADJ STORE tstar = comlev1_exf_1, key = ikey_1 |
| 518 |
|
|
CADJ STORE tau = comlev1_exf_1, key = ikey_1 |
| 519 |
|
|
CADJ STORE cw = comlev1_exf_1, key = ikey_1 |
| 520 |
|
|
CADJ STORE sw = comlev1_exf_1, key = ikey_1 |
| 521 |
|
|
#endif |
| 522 |
|
|
|
| 523 |
heimbach |
1.1 |
hs(i,j,bi,bj) = atmcp*tau*tstar/ustar |
| 524 |
|
|
hl(i,j,bi,bj) = flamb*tau*qstar/ustar |
| 525 |
|
|
evap(i,j,bi,bj) = tau*qstar/ustar |
| 526 |
|
|
ustress(i,j,bi,bj) = tau*cw |
| 527 |
|
|
vstress(i,j,bi,bj) = tau*sw |
| 528 |
|
|
else |
| 529 |
|
|
ustress(i,j,bi,bj) = 0. _d 0 |
| 530 |
|
|
vstress(i,j,bi,bj) = 0. _d 0 |
| 531 |
|
|
hflux (i,j,bi,bj) = 0. _d 0 |
| 532 |
|
|
hs(i,j,bi,bj) = 0. _d 0 |
| 533 |
|
|
hl(i,j,bi,bj) = 0. _d 0 |
| 534 |
|
|
endif |
| 535 |
|
|
|
| 536 |
|
|
#else |
| 537 |
|
|
#ifdef ALLOW_ATM_WIND |
| 538 |
|
|
ustress(i,j,bi,bj) = atmrho*exf_BulkCdn(sh)*us* |
| 539 |
|
|
& uwind(i,j,bi,bj) |
| 540 |
|
|
vstress(i,j,bi,bj) = atmrho*exf_BulkCdn(sh)*us* |
| 541 |
|
|
& vwind(i,j,bi,bj) |
| 542 |
|
|
#endif /* ALLOW_ATM_WIND */ |
| 543 |
|
|
#endif /* ALLOW_ATM_TEMP */ |
| 544 |
|
|
enddo |
| 545 |
|
|
enddo |
| 546 |
|
|
enddo |
| 547 |
|
|
enddo |
| 548 |
|
|
|
| 549 |
|
|
c Add all contributions. |
| 550 |
|
|
do bj = mybylo(mythid),mybyhi(mythid) |
| 551 |
|
|
do bi = mybxlo(mythid),mybxhi(mythid) |
| 552 |
|
|
do j = 1,sny |
| 553 |
|
|
do i = 1,snx |
| 554 |
|
|
c Net surface heat flux. |
| 555 |
|
|
#ifdef ALLOW_ATM_TEMP |
| 556 |
|
|
hfl = 0. _d 0 |
| 557 |
|
|
hfl = hfl - hs(i,j,bi,bj) |
| 558 |
|
|
hfl = hfl - hl(i,j,bi,bj) |
| 559 |
|
|
hfl = hfl + lwflux(i,j,bi,bj) |
| 560 |
|
|
#ifndef ALLOW_KPP |
| 561 |
|
|
hfl = hfl + swflux(i,j,bi,bj) |
| 562 |
|
|
#endif /* ALLOW_KPP undef */ |
| 563 |
|
|
c Heat flux: |
| 564 |
heimbach |
1.3 |
hflux(i,j,bi,bj) = hfl*maskc(i,j,1,bi,bj) |
| 565 |
heimbach |
1.1 |
c Salt flux from Precipitation and Evaporation. |
| 566 |
|
|
sflux(i,j,bi,bj) = precip(i,j,bi,bj) - evap(i,j,bi,bj) |
| 567 |
|
|
#endif /* ALLOW_ATM_TEMP */ |
| 568 |
|
|
|
| 569 |
|
|
#else |
| 570 |
heimbach |
1.3 |
hflux(i,j,bi,bj) = hflux(i,j,bi,bj)*maskc(i,j,1,bi,bj) |
| 571 |
|
|
sflux(i,j,bi,bj) = sflux(i,j,bi,bj)*maskc(i,j,1,bi,bj) |
| 572 |
heimbach |
1.1 |
#endif /* ALLOW_BULKFORMULAE */ |
| 573 |
heimbach |
1.4 |
|
| 574 |
|
|
#ifdef ALLOW_RUNOFF |
| 575 |
|
|
sflux(i,j,bi,bj) = sflux(i,j,bi,bj) + |
| 576 |
|
|
& runoff(i,j,bi,bj)*maskc(i,j,1,bi,bj) |
| 577 |
|
|
#endif /* ALLOW_RUNOFF */ |
| 578 |
|
|
|
| 579 |
heimbach |
1.1 |
enddo |
| 580 |
|
|
enddo |
| 581 |
|
|
enddo |
| 582 |
|
|
enddo |
| 583 |
|
|
|
| 584 |
|
|
c Update the tile edges. |
| 585 |
|
|
_EXCH_XY_R8(hflux, mythid) |
| 586 |
|
|
_EXCH_XY_R8(sflux, mythid) |
| 587 |
cheisey |
1.5 |
c _EXCH_XY_R8(ustress, mythid) |
| 588 |
|
|
c _EXCH_XY_R8(vstress, mythid) |
| 589 |
|
|
CALL EXCH_UV_XY_RS(ustress, vstress, .TRUE., myThid) |
| 590 |
heimbach |
1.1 |
|
| 591 |
|
|
#ifdef ALLOW_KPP |
| 592 |
|
|
_EXCH_XY_R8(swflux, mythid) |
| 593 |
|
|
#endif /* ALLOW_KPP */ |
| 594 |
|
|
|
| 595 |
|
|
end |
Parent Directory
| 
Revision Log
| 
Revision Graph