| 1 | !WRF:MODEL_LAYER:PHYSICS |
|---|
| 2 | ! |
|---|
| 3 | MODULE module_sf_slab |
|---|
| 4 | |
|---|
| 5 | !---SPECIFY CONSTANTS AND LAYERS FOR SOIL MODEL |
|---|
| 6 | !---SOIL DIFFUSION CONSTANT SET (M^2/S) |
|---|
| 7 | |
|---|
| 8 | REAL, PARAMETER :: DIFSL=5.e-7 |
|---|
| 9 | |
|---|
| 10 | !---FACTOR TO MAKE SOIL STEP MORE CONSERVATIVE |
|---|
| 11 | |
|---|
| 12 | REAL , PARAMETER :: SOILFAC=1.25 |
|---|
| 13 | |
|---|
| 14 | CONTAINS |
|---|
| 15 | |
|---|
| 16 | !---------------------------------------------------------------- |
|---|
| 17 | SUBROUTINE SLAB(T3D,QV3D,P3D,FLHC,FLQC, & |
|---|
| 18 | PSFC,XLAND,TMN,HFX,QFX,LH,TSK,QSFC,CHKLOWQ, & |
|---|
| 19 | GSW,GLW,CAPG,THC,SNOWC,EMISS,MAVAIL, & |
|---|
| 20 | DELTSM,ROVCP,XLV,DTMIN,IFSNOW, & |
|---|
| 21 | SVP1,SVP2,SVP3,SVPT0,EP2, & |
|---|
| 22 | KARMAN,EOMEG,STBOLT, & |
|---|
| 23 | TSLB,ZS,DZS,num_soil_layers,radiation, & |
|---|
| 24 | P1000mb, & |
|---|
| 25 | ids,ide, jds,jde, kds,kde, & |
|---|
| 26 | ims,ime, jms,jme, kms,kme, & |
|---|
| 27 | its,ite, jts,jte, kts,kte ) |
|---|
| 28 | !---------------------------------------------------------------- |
|---|
| 29 | IMPLICIT NONE |
|---|
| 30 | !---------------------------------------------------------------- |
|---|
| 31 | ! |
|---|
| 32 | ! SUBROUTINE SLAB CALCULATES THE GROUND TEMPERATURE TENDENCY |
|---|
| 33 | ! ACCORDING TO THE RESIDUAL OF THE SURFACE ENERGY BUDGET |
|---|
| 34 | ! (BLACKADAR, 1978B). |
|---|
| 35 | ! |
|---|
| 36 | ! CHANGES: |
|---|
| 37 | ! FOR SOIL SUB-TIMESTEPS UPDATE SURFACE HFX AND QFX AS TG |
|---|
| 38 | ! CHANGES TO PREVENT POSSIBLE INSTABILITY FOR LONG MODEL |
|---|
| 39 | ! STEPS (DT > ~200 SEC). |
|---|
| 40 | ! |
|---|
| 41 | ! PUT SNOW COVER CHECK ON SOIL SUB-TIMESTEPS |
|---|
| 42 | ! |
|---|
| 43 | ! MAKE UPPER LIMIT ON SOIL SUB-STEP LENGTH MORE CONSERVATIVE |
|---|
| 44 | ! |
|---|
| 45 | !---------------------------------------------------------------- |
|---|
| 46 | !-- T3D temperature (K) |
|---|
| 47 | !-- QV3D 3D water vapor mixing ratio (Kg/Kg) |
|---|
| 48 | !-- P3D 3D pressure (Pa) |
|---|
| 49 | !-- FLHC exchange coefficient for heat (m/s) |
|---|
| 50 | !-- FLQC exchange coefficient for moisture (m/s) |
|---|
| 51 | !-- PSFC surface pressure (Pa) |
|---|
| 52 | !-- XLAND land mask (1 for land, 2 for water) |
|---|
| 53 | !-- TMN soil temperature at lower boundary (K) |
|---|
| 54 | !-- HFX upward heat flux at the surface (W/m^2) |
|---|
| 55 | !-- QFX upward moisture flux at the surface (kg/m^2/s) |
|---|
| 56 | !-- LH latent heat flux at the surface (W/m^2) |
|---|
| 57 | !-- TSK surface temperature (K) |
|---|
| 58 | !-- GSW downward short wave flux at ground surface (W/m^2) |
|---|
| 59 | !-- GLW downward long wave flux at ground surface (W/m^2) |
|---|
| 60 | !-- CAPG heat capacity for soil (J/K/m^3) |
|---|
| 61 | !-- THC thermal inertia (Cal/cm/K/s^0.5) |
|---|
| 62 | !-- SNOWC flag indicating snow coverage (1 for snow cover) |
|---|
| 63 | !-- EMISS surface emissivity (between 0 and 1) |
|---|
| 64 | !-- DELTSM time step (second) |
|---|
| 65 | !-- ROVCP R/CP |
|---|
| 66 | !-- XLV latent heat of melting (J/kg) |
|---|
| 67 | !-- DTMIN time step (minute) |
|---|
| 68 | !-- IFSNOW ifsnow=1 for snow-cover effects |
|---|
| 69 | !-- SVP1 constant for saturation vapor pressure (kPa) |
|---|
| 70 | !-- SVP2 constant for saturation vapor pressure (dimensionless) |
|---|
| 71 | !-- SVP3 constant for saturation vapor pressure (K) |
|---|
| 72 | !-- SVPT0 constant for saturation vapor pressure (K) |
|---|
| 73 | !-- EP1 constant for virtual temperature (R_v/R_d - 1) (dimensionless) |
|---|
| 74 | !-- EP2 constant for specific humidity calculation |
|---|
| 75 | ! (R_d/R_v) (dimensionless) |
|---|
| 76 | !-- KARMAN Von Karman constant |
|---|
| 77 | !-- EOMEG angular velocity of earth's rotation (rad/s) |
|---|
| 78 | !-- STBOLT Stefan-Boltzmann constant (W/m^2/K^4) |
|---|
| 79 | !-- TSLB soil temperature in 5-layer model |
|---|
| 80 | !-- ZS depths of centers of soil layers |
|---|
| 81 | !-- DZS thicknesses of soil layers |
|---|
| 82 | !-- num_soil_layers the number of soil layers |
|---|
| 83 | !-- ids start index for i in domain |
|---|
| 84 | !-- ide end index for i in domain |
|---|
| 85 | !-- jds start index for j in domain |
|---|
| 86 | !-- jde end index for j in domain |
|---|
| 87 | !-- kds start index for k in domain |
|---|
| 88 | !-- kde end index for k in domain |
|---|
| 89 | !-- ims start index for i in memory |
|---|
| 90 | !-- ime end index for i in memory |
|---|
| 91 | !-- jms start index for j in memory |
|---|
| 92 | !-- jme end index for j in memory |
|---|
| 93 | !-- kms start index for k in memory |
|---|
| 94 | !-- kme end index for k in memory |
|---|
| 95 | !-- its start index for i in tile |
|---|
| 96 | !-- ite end index for i in tile |
|---|
| 97 | !-- jts start index for j in tile |
|---|
| 98 | !-- jte end index for j in tile |
|---|
| 99 | !-- kts start index for k in tile |
|---|
| 100 | !-- kte end index for k in tile |
|---|
| 101 | !---------------------------------------------------------------- |
|---|
| 102 | INTEGER, INTENT(IN ) :: ids,ide, jds,jde, kds,kde, & |
|---|
| 103 | ims,ime, jms,jme, kms,kme, & |
|---|
| 104 | its,ite, jts,jte, kts,kte |
|---|
| 105 | |
|---|
| 106 | INTEGER, INTENT(IN) :: num_soil_layers |
|---|
| 107 | LOGICAL, INTENT(IN) :: radiation |
|---|
| 108 | |
|---|
| 109 | INTEGER, INTENT(IN ) :: IFSNOW |
|---|
| 110 | |
|---|
| 111 | ! |
|---|
| 112 | REAL, INTENT(IN ) :: DTMIN,XLV,ROVCP,DELTSM |
|---|
| 113 | |
|---|
| 114 | REAL, INTENT(IN ) :: SVP1,SVP2,SVP3,SVPT0 |
|---|
| 115 | REAL, INTENT(IN ) :: EP2,KARMAN,EOMEG,STBOLT |
|---|
| 116 | REAL, INTENT(IN ) :: P1000mb |
|---|
| 117 | |
|---|
| 118 | REAL, DIMENSION( ims:ime , 1:num_soil_layers, jms:jme ), & |
|---|
| 119 | INTENT(INOUT) :: TSLB |
|---|
| 120 | |
|---|
| 121 | REAL, DIMENSION(1:num_soil_layers), INTENT(IN)::ZS,DZS |
|---|
| 122 | |
|---|
| 123 | REAL, DIMENSION( ims:ime, kms:kme, jms:jme ) , & |
|---|
| 124 | INTENT(IN ) :: QV3D, & |
|---|
| 125 | P3D, & |
|---|
| 126 | T3D |
|---|
| 127 | ! |
|---|
| 128 | REAL, DIMENSION( ims:ime, jms:jme ) , & |
|---|
| 129 | INTENT(IN ) :: SNOWC, & |
|---|
| 130 | XLAND, & |
|---|
| 131 | EMISS, & |
|---|
| 132 | MAVAIL, & |
|---|
| 133 | TMN, & |
|---|
| 134 | GSW, & |
|---|
| 135 | GLW, & |
|---|
| 136 | THC |
|---|
| 137 | |
|---|
| 138 | !CHKLOWQ is declared as memory size |
|---|
| 139 | ! |
|---|
| 140 | REAL, DIMENSION( ims:ime, jms:jme ) , & |
|---|
| 141 | INTENT(INOUT) :: HFX, & |
|---|
| 142 | QFX, & |
|---|
| 143 | LH, & |
|---|
| 144 | CAPG, & |
|---|
| 145 | TSK, & |
|---|
| 146 | QSFC, & |
|---|
| 147 | CHKLOWQ |
|---|
| 148 | |
|---|
| 149 | REAL, DIMENSION( ims:ime, jms:jme ) , & |
|---|
| 150 | INTENT(IN ) :: PSFC |
|---|
| 151 | ! |
|---|
| 152 | REAL, DIMENSION( ims:ime, jms:jme ), INTENT(INOUT) :: & |
|---|
| 153 | FLHC, & |
|---|
| 154 | FLQC |
|---|
| 155 | |
|---|
| 156 | ! LOCAL VARS |
|---|
| 157 | |
|---|
| 158 | REAL, DIMENSION( its:ite ) :: QV1D, & |
|---|
| 159 | P1D, & |
|---|
| 160 | T1D |
|---|
| 161 | INTEGER :: I,J |
|---|
| 162 | |
|---|
| 163 | DO J=jts,jte |
|---|
| 164 | |
|---|
| 165 | DO i=its,ite |
|---|
| 166 | T1D(i) =T3D(i,1,j) |
|---|
| 167 | QV1D(i)=QV3D(i,1,j) |
|---|
| 168 | P1D(i) =P3D(i,1,j) |
|---|
| 169 | ENDDO |
|---|
| 170 | |
|---|
| 171 | ! the indices to the PSFC argument in the following call look |
|---|
| 172 | ! wrong; however, it is correct to call with its (and not ims) |
|---|
| 173 | ! because of the way PSFC is defined in SLAB1D. Whether *that* |
|---|
| 174 | ! is a good idea or not, this commenter cannot comment. JM |
|---|
| 175 | |
|---|
| 176 | CALL SLAB1D(J,T1D,QV1D,P1D,FLHC(ims,j),FLQC(ims,j), & |
|---|
| 177 | PSFC(its,j),XLAND(ims,j),TMN(ims,j),HFX(ims,j), & |
|---|
| 178 | QFX(ims,j),TSK(ims,j),QSFC(ims,j),CHKLOWQ(ims,j), & |
|---|
| 179 | LH(ims,j),GSW(ims,j),GLW(ims,j), & |
|---|
| 180 | CAPG(ims,j),THC(ims,j),SNOWC(ims,j),EMISS(ims,j), & |
|---|
| 181 | MAVAIL(ims,j),DELTSM,ROVCP,XLV,DTMIN,IFSNOW, & |
|---|
| 182 | SVP1,SVP2,SVP3,SVPT0,EP2,KARMAN,EOMEG,STBOLT, & |
|---|
| 183 | TSLB(ims,1,j),ZS,DZS,num_soil_layers,radiation, & |
|---|
| 184 | P1000mb, & |
|---|
| 185 | ids,ide, jds,jde, kds,kde, & |
|---|
| 186 | ims,ime, jms,jme, kms,kme, & |
|---|
| 187 | its,ite, jts,jte, kts,kte ) |
|---|
| 188 | |
|---|
| 189 | ENDDO |
|---|
| 190 | |
|---|
| 191 | END SUBROUTINE SLAB |
|---|
| 192 | |
|---|
| 193 | !---------------------------------------------------------------- |
|---|
| 194 | SUBROUTINE SLAB1D(J,T1D,QV1D,P1D,FLHC,FLQC, & |
|---|
| 195 | PSFCPA,XLAND,TMN,HFX,QFX,TSK,QSFC,CHKLOWQ, & |
|---|
| 196 | LH,GSW,GLW,CAPG,THC,SNOWC,EMISS,MAVAIL, & |
|---|
| 197 | DELTSM,ROVCP,XLV,DTMIN,IFSNOW, & |
|---|
| 198 | SVP1,SVP2,SVP3,SVPT0,EP2, & |
|---|
| 199 | KARMAN,EOMEG,STBOLT, & |
|---|
| 200 | TSLB2D,ZS,DZS,num_soil_layers,radiation, & |
|---|
| 201 | P1000mb, & |
|---|
| 202 | ids,ide, jds,jde, kds,kde, & |
|---|
| 203 | ims,ime, jms,jme, kms,kme, & |
|---|
| 204 | its,ite, jts,jte, kts,kte ) |
|---|
| 205 | !---------------------------------------------------------------- |
|---|
| 206 | IMPLICIT NONE |
|---|
| 207 | !---------------------------------------------------------------- |
|---|
| 208 | ! |
|---|
| 209 | ! SUBROUTINE SLAB CALCULATES THE GROUND TEMPERATURE TENDENCY |
|---|
| 210 | ! ACCORDING TO THE RESIDUAL OF THE SURFACE ENERGY BUDGET |
|---|
| 211 | ! (BLACKADAR, 1978B). |
|---|
| 212 | ! |
|---|
| 213 | ! CHANGES: |
|---|
| 214 | ! FOR SOIL SUB-TIMESTEPS UPDATE SURFACE HFX AND QFX AS TG |
|---|
| 215 | ! CHANGES TO PREVENT POSSIBLE INSTABILITY FOR LONG MODEL |
|---|
| 216 | ! STEPS (DT > ~200 SEC). |
|---|
| 217 | ! |
|---|
| 218 | ! PUT SNOW COVER CHECK ON SOIL SUB-TIMESTEPS |
|---|
| 219 | ! |
|---|
| 220 | ! MAKE UPPER LIMIT ON SOIL SUB-STEP LENGTH MORE CONSERVATIVE |
|---|
| 221 | ! |
|---|
| 222 | !---------------------------------------------------------------- |
|---|
| 223 | |
|---|
| 224 | INTEGER, INTENT(IN ) :: ids,ide, jds,jde, kds,kde, & |
|---|
| 225 | ims,ime, jms,jme, kms,kme, & |
|---|
| 226 | its,ite, jts,jte, kts,kte,J |
|---|
| 227 | |
|---|
| 228 | INTEGER , INTENT(IN) :: num_soil_layers |
|---|
| 229 | LOGICAL, INTENT(IN ) :: radiation |
|---|
| 230 | |
|---|
| 231 | INTEGER, INTENT(IN ) :: IFSNOW |
|---|
| 232 | ! |
|---|
| 233 | REAL, INTENT(IN ) :: DTMIN,XLV,ROVCP,DELTSM |
|---|
| 234 | |
|---|
| 235 | REAL, INTENT(IN ) :: SVP1,SVP2,SVP3,SVPT0 |
|---|
| 236 | REAL, INTENT(IN ) :: EP2,KARMAN,EOMEG,STBOLT |
|---|
| 237 | REAL, INTENT(IN ) :: P1000mb |
|---|
| 238 | |
|---|
| 239 | REAL, DIMENSION( ims:ime , 1:num_soil_layers ), & |
|---|
| 240 | INTENT(INOUT) :: TSLB2D |
|---|
| 241 | |
|---|
| 242 | REAL, DIMENSION(1:num_soil_layers), INTENT(IN)::ZS,DZS |
|---|
| 243 | |
|---|
| 244 | ! |
|---|
| 245 | REAL, DIMENSION( ims:ime ) , & |
|---|
| 246 | INTENT(INOUT) :: HFX, & |
|---|
| 247 | QFX, & |
|---|
| 248 | LH, & |
|---|
| 249 | CAPG, & |
|---|
| 250 | TSK, & |
|---|
| 251 | QSFC, & |
|---|
| 252 | CHKLOWQ |
|---|
| 253 | ! |
|---|
| 254 | REAL, DIMENSION( ims:ime ) , & |
|---|
| 255 | INTENT(IN ) :: SNOWC, & |
|---|
| 256 | XLAND, & |
|---|
| 257 | EMISS, & |
|---|
| 258 | MAVAIL, & |
|---|
| 259 | TMN, & |
|---|
| 260 | GSW, & |
|---|
| 261 | GLW, & |
|---|
| 262 | THC |
|---|
| 263 | ! |
|---|
| 264 | REAL, DIMENSION( its:ite ) , & |
|---|
| 265 | INTENT(IN ) :: QV1D, & |
|---|
| 266 | P1D, & |
|---|
| 267 | T1D |
|---|
| 268 | ! |
|---|
| 269 | REAL, DIMENSION( its:ite ) , & |
|---|
| 270 | INTENT(IN ) :: PSFCPA |
|---|
| 271 | |
|---|
| 272 | ! |
|---|
| 273 | REAL, DIMENSION( ims:ime ), INTENT(INOUT) :: & |
|---|
| 274 | FLHC, & |
|---|
| 275 | FLQC |
|---|
| 276 | ! LOCAL VARS |
|---|
| 277 | |
|---|
| 278 | REAL, DIMENSION( its:ite ) :: PSFC |
|---|
| 279 | |
|---|
| 280 | REAL, DIMENSION( its:ite ) :: & |
|---|
| 281 | THX, & |
|---|
| 282 | QX, & |
|---|
| 283 | SCR3 |
|---|
| 284 | |
|---|
| 285 | REAL, DIMENSION( its:ite ) :: DTHGDT, & |
|---|
| 286 | TG0, & |
|---|
| 287 | THTMN, & |
|---|
| 288 | XLD1, & |
|---|
| 289 | TSCVN, & |
|---|
| 290 | OLTG, & |
|---|
| 291 | UPFLUX, & |
|---|
| 292 | HM, & |
|---|
| 293 | RNET, & |
|---|
| 294 | XINET, & |
|---|
| 295 | QS, & |
|---|
| 296 | DTSDT |
|---|
| 297 | ! |
|---|
| 298 | REAL, DIMENSION( its:ite, num_soil_layers ) :: FLUX |
|---|
| 299 | ! |
|---|
| 300 | INTEGER :: I,K,NSOIL,ITSOIL,L,NK,RADSWTCH |
|---|
| 301 | REAL :: PS,PS1,XLDCOL,TSKX,RNSOIL,RHOG1,RHOG2,RHOG3,LAMDAG |
|---|
| 302 | REAL :: THG,ESG,QSG,HFXT,QFXT,CS,CSW,LAMG(4),THCON,PL |
|---|
| 303 | |
|---|
| 304 | !---------------------------------------------------------------------- |
|---|
| 305 | !-----DETERMINE IF ANY POINTS IN COLUMN ARE LAND (RATHER THAN OCEAN) |
|---|
| 306 | ! POINTS. IF NOT, SKIP DOWN TO THE PRINT STATEMENTS SINCE OCEAN |
|---|
| 307 | ! SURFACE TEMPERATURES ARE NOT ALLOWED TO CHANGE. |
|---|
| 308 | ! |
|---|
| 309 | ! from sfcrad |
|---|
| 310 | !---------------------------------------------------------------------- |
|---|
| 311 | DATA CSW/4.183E6/ |
|---|
| 312 | DATA LAMG/1.407E-8, -1.455E-5, 6.290E-3, 0.16857/ |
|---|
| 313 | |
|---|
| 314 | DO i=its,ite |
|---|
| 315 | ! in cmb |
|---|
| 316 | PSFC(I)=PSFCPA(I)/1000. |
|---|
| 317 | ENDDO |
|---|
| 318 | |
|---|
| 319 | |
|---|
| 320 | DO I=its,ite |
|---|
| 321 | ! PL cmb |
|---|
| 322 | PL=P1D(I)/1000. |
|---|
| 323 | SCR3(I)=T1D(I) |
|---|
| 324 | ! THCON=(100./PL)**ROVCP |
|---|
| 325 | THCON=(P1000mb*0.001/PL)**ROVCP |
|---|
| 326 | THX(I)=SCR3(I)*THCON |
|---|
| 327 | QX(I)=0. |
|---|
| 328 | ENDDO |
|---|
| 329 | |
|---|
| 330 | ! IF(IDRY.EQ.1) GOTO 81 |
|---|
| 331 | DO I=its,ite |
|---|
| 332 | QX(I)=QV1D(I) |
|---|
| 333 | ENDDO |
|---|
| 334 | 81 CONTINUE |
|---|
| 335 | |
|---|
| 336 | ! |
|---|
| 337 | !-----THE SLAB THERMAL CAPACITY CAPG(I) ARE DEPENDENT ON: |
|---|
| 338 | ! THC(I) - SOIL THERMAL INERTIAL, ONLY. |
|---|
| 339 | ! |
|---|
| 340 | DO I=its,ite |
|---|
| 341 | CAPG(I)=3.298E6*THC(I) |
|---|
| 342 | IF(num_soil_layers .gt. 1)THEN |
|---|
| 343 | |
|---|
| 344 | ! CAPG REPRESENTS SOIL HEAT CAPACITY (J/K/M^3) WHEN DIFSL=5.E-7 (M^2/S) |
|---|
| 345 | ! TO GIVE A CORRECT THERMAL INERTIA (=CAPG*DIFSL^0.5) |
|---|
| 346 | |
|---|
| 347 | CAPG(I)=5.9114E7*THC(I) |
|---|
| 348 | ENDIF |
|---|
| 349 | ENDDO |
|---|
| 350 | ! |
|---|
| 351 | XLDCOL=2.0 |
|---|
| 352 | DO 10 I=its,ite |
|---|
| 353 | XLDCOL=AMIN1(XLDCOL,XLAND(I)) |
|---|
| 354 | 10 CONTINUE |
|---|
| 355 | ! |
|---|
| 356 | IF(XLDCOL.GT.1.5)GOTO 90 |
|---|
| 357 | ! |
|---|
| 358 | ! |
|---|
| 359 | !-----CONVERT SLAB TEMPERATURE TO POTENTIAL TEMPERATURE AND |
|---|
| 360 | ! SET XLD1(I) = 0. FOR OCEAN POINTS: |
|---|
| 361 | ! |
|---|
| 362 | ! |
|---|
| 363 | DO 20 I=its,ite |
|---|
| 364 | IF((XLAND(I)-1.5).GE.0)THEN |
|---|
| 365 | XLD1(I)=0. |
|---|
| 366 | ELSE |
|---|
| 367 | XLD1(I)=1. |
|---|
| 368 | ENDIF |
|---|
| 369 | 20 CONTINUE |
|---|
| 370 | ! |
|---|
| 371 | !-----CONVERT 'TSK(THETAG)' TO 'TG' FOR 'IUP' CALCULATION .... |
|---|
| 372 | ! IF WE ARE USING THE BLACKADAR MULTI-LEVEL (HIGH-RESOLUTION) |
|---|
| 373 | ! PBL MODEL |
|---|
| 374 | ! |
|---|
| 375 | DO 50 I=its,ite |
|---|
| 376 | IF(XLD1(I).LT.0.5)GOTO 50 |
|---|
| 377 | |
|---|
| 378 | ! PS cmb |
|---|
| 379 | PS=PSFC(I) |
|---|
| 380 | |
|---|
| 381 | ! TSK is Temperature at gound sfc |
|---|
| 382 | ! TG0(I)=TSK(I)*(PS*0.01)**ROVCP |
|---|
| 383 | TG0(I)=TSK(I) |
|---|
| 384 | 50 CONTINUE |
|---|
| 385 | ! |
|---|
| 386 | !-----COMPUTE THE SURFACE ENERGY BUDGET: |
|---|
| 387 | ! |
|---|
| 388 | ! IF(ISOIL.EQ.1)NSOIL=1 |
|---|
| 389 | IF(num_soil_layers .gt. 1)NSOIL=1 |
|---|
| 390 | |
|---|
| 391 | |
|---|
| 392 | IF (radiation) then |
|---|
| 393 | RADSWTCH=1 |
|---|
| 394 | ELSE |
|---|
| 395 | RADSWTCH=0 |
|---|
| 396 | ENDIF |
|---|
| 397 | |
|---|
| 398 | DO 70 I=its,ite |
|---|
| 399 | IF(XLD1(I).LT.0.5)GOTO 70 |
|---|
| 400 | ! OLTG(I)=TSK(I)*(100./PSFC(I))**ROVCP |
|---|
| 401 | OLTG(I)=TSK(I)*(P1000mb*0.001/PSFC(I))**ROVCP |
|---|
| 402 | UPFLUX(I)=RADSWTCH*STBOLT*TG0(I)**4 |
|---|
| 403 | XINET(I)=EMISS(I)*(GLW(I)-UPFLUX(I)) |
|---|
| 404 | RNET(I)=GSW(I)+XINET(I) |
|---|
| 405 | HM(I)=1.18*EOMEG*(TG0(I)-TMN(I)) |
|---|
| 406 | ! MOISTURE FLUX CALCULATED HERE (OVERWRITES SFC LAYER VALUE FOR LAND) |
|---|
| 407 | ESG=SVP1*EXP(SVP2*(TG0(I)-SVPT0)/(TG0(I)-SVP3)) |
|---|
| 408 | QSG=EP2*ESG/(PSFC(I)-ESG) |
|---|
| 409 | THG=TSK(I)*(100./PSFC(I))**ROVCP |
|---|
| 410 | HFX(I)=FLHC(I)*(THG-THX(I)) |
|---|
| 411 | QFX(I)=FLQC(I)*(QSG-QX(I)) |
|---|
| 412 | LH(I)=QFX(I)*XLV |
|---|
| 413 | QS(I)=HFX(I)+QFX(I)*XLV |
|---|
| 414 | ! IF(ISOIL.EQ.0)THEN |
|---|
| 415 | IF(num_soil_layers .EQ. 1)THEN |
|---|
| 416 | DTHGDT(I)=(RNET(I)-QS(I))/CAPG(I)-HM(I) |
|---|
| 417 | ELSE |
|---|
| 418 | DTHGDT(I)=0. |
|---|
| 419 | ENDIF |
|---|
| 420 | 70 CONTINUE |
|---|
| 421 | ! IF(ISOIL.EQ.1)THEN |
|---|
| 422 | IF(num_soil_layers .gt. 1)THEN |
|---|
| 423 | NSOIL=1+IFIX(SOILFAC*4*DIFSL/DZS(1)*DELTSM/DZS(1)) |
|---|
| 424 | RNSOIL=1./FLOAT(NSOIL) |
|---|
| 425 | ! |
|---|
| 426 | ! SOIL SUB-TIMESTEP |
|---|
| 427 | ! |
|---|
| 428 | DO ITSOIL=1,NSOIL |
|---|
| 429 | DO I=its,ite |
|---|
| 430 | DO L=1,num_soil_layers-1 |
|---|
| 431 | IF(XLD1(I).LT.0.5)GOTO 75 |
|---|
| 432 | IF(L.EQ.1.AND.ITSOIL.GT.1)THEN |
|---|
| 433 | ! PS1=(PSFC(I)*0.01)**ROVCP |
|---|
| 434 | PS1=(PSFCPA(I)/P1000mb)**ROVCP |
|---|
| 435 | |
|---|
| 436 | ! for rk scheme A and B are the same |
|---|
| 437 | PS=PSFC(I) |
|---|
| 438 | THG=TSLB2D(I,1)/PS1 |
|---|
| 439 | ESG=SVP1*EXP(SVP2*(TSLB2D(I,1)-SVPT0)/(TSLB2D(I,1) & |
|---|
| 440 | -SVP3)) |
|---|
| 441 | QSG=EP2*ESG/(PS-ESG) |
|---|
| 442 | ! UPDATE FLUXES FOR NEW GROUND TEMPERATURE |
|---|
| 443 | HFXT=FLHC(I)*(THG-THX(I)) |
|---|
| 444 | QFXT=FLQC(I)*(QSG-QX(I)) |
|---|
| 445 | QS(I)=HFXT+QFXT*XLV |
|---|
| 446 | ! SUM HFX AND QFX OVER SOIL TIMESTEPS |
|---|
| 447 | HFX(I)=HFX(I)+HFXT |
|---|
| 448 | QFX(I)=QFX(I)+QFXT |
|---|
| 449 | ENDIF |
|---|
| 450 | FLUX(I,1)=RNET(I)-QS(I) |
|---|
| 451 | FLUX(I,L+1)=-DIFSL*CAPG(I)*(TSLB2D(I,L+1)-TSLB2D(I,L))/( & |
|---|
| 452 | ZS(L+1)-ZS(L)) |
|---|
| 453 | DTSDT(I)=-(FLUX(I,L+1)-FLUX(I,L))/(DZS(L)*CAPG(I)) |
|---|
| 454 | TSLB2D(I,L)=TSLB2D(I,L)+DTSDT(I)*DELTSM*RNSOIL |
|---|
| 455 | IF(IFSNOW.EQ.1.AND.L.EQ.1)THEN |
|---|
| 456 | IF((SNOWC(I).GT.0..AND.TSLB2D(I,1).GT.273.16))THEN |
|---|
| 457 | TSLB2D(I,1)=273.16 |
|---|
| 458 | ENDIF |
|---|
| 459 | ENDIF |
|---|
| 460 | IF(L.EQ.1)DTHGDT(I)=DTHGDT(I)+RNSOIL*DTSDT(I) |
|---|
| 461 | IF(ITSOIL.EQ.NSOIL.AND.L.EQ.1)THEN |
|---|
| 462 | ! AVERAGE HFX AND QFX OVER SOIL TIMESTEPS FOR OUTPUT TO PBL |
|---|
| 463 | HFX(I)=HFX(I)*RNSOIL |
|---|
| 464 | QFX(I)=QFX(I)*RNSOIL |
|---|
| 465 | LH(I)=QFX(I)*XLV |
|---|
| 466 | ENDIF |
|---|
| 467 | 75 CONTINUE |
|---|
| 468 | ENDDO |
|---|
| 469 | ENDDO |
|---|
| 470 | ENDDO |
|---|
| 471 | ENDIF |
|---|
| 472 | ! |
|---|
| 473 | DO 80 I=its,ite |
|---|
| 474 | IF(XLD1(I).LT.0.5) GOTO 80 |
|---|
| 475 | TSKX=TG0(I)+DELTSM*DTHGDT(I) |
|---|
| 476 | |
|---|
| 477 | ! TSK is temperature |
|---|
| 478 | ! TSK(I)=TSKX*(100./PS1)**ROVCP |
|---|
| 479 | TSK(I)=TSKX |
|---|
| 480 | 80 CONTINUE |
|---|
| 481 | |
|---|
| 482 | ! |
|---|
| 483 | !-----MODIFY THE THE GROUND TEMPERATURE IF THE SNOW COVER EFFECTS ARE |
|---|
| 484 | ! CONSIDERED: LIMIT THE GROUND TEMPERATURE UNDER 0 C. |
|---|
| 485 | ! |
|---|
| 486 | IF(IFSNOW.EQ.0)GOTO 90 |
|---|
| 487 | DO 85 I=its,ite |
|---|
| 488 | IF(XLD1(I).LT.0.5)GOTO 85 |
|---|
| 489 | ! PS1=(PSFC(I)*0.01)**ROVCP |
|---|
| 490 | ! TSCVN(I)=TSK(I)*PS1 |
|---|
| 491 | TSCVN(I)=TSK(I) |
|---|
| 492 | IF((SNOWC(I).GT.0..AND.TSCVN(I).GT.273.16))THEN |
|---|
| 493 | TSCVN(I)=273.16 |
|---|
| 494 | ELSE |
|---|
| 495 | TSCVN(I)=TSCVN(I) |
|---|
| 496 | ENDIF |
|---|
| 497 | ! TSK(I)=TSCVN(I)/PS1 |
|---|
| 498 | TSK(I)=TSCVN(I) |
|---|
| 499 | 85 CONTINUE |
|---|
| 500 | ! |
|---|
| 501 | 90 CONTINUE |
|---|
| 502 | DO I=its,ite |
|---|
| 503 | ! QSFC and CHKLOWQ needed by Eta PBL |
|---|
| 504 | ! WA added check for flqc = 0 to accomodate TEMF (and others?) |
|---|
| 505 | if ( FLQC(I) .ne. 0.) then |
|---|
| 506 | QSFC(I)=QX(I)+QFX(I)/FLQC(I) |
|---|
| 507 | else |
|---|
| 508 | QSFC(I) = QX(I) |
|---|
| 509 | end if |
|---|
| 510 | CHKLOWQ(I)=MAVAIL(I) |
|---|
| 511 | ENDDO |
|---|
| 512 | ! |
|---|
| 513 | 140 CONTINUE |
|---|
| 514 | |
|---|
| 515 | END SUBROUTINE SLAB1D |
|---|
| 516 | |
|---|
| 517 | !================================================================ |
|---|
| 518 | SUBROUTINE slabinit(TSK,TMN, & |
|---|
| 519 | TSLB,ZS,DZS,num_soil_layers, & |
|---|
| 520 | allowed_to_read, start_of_simulation, & |
|---|
| 521 | ids,ide, jds,jde, kds,kde, & |
|---|
| 522 | ims,ime, jms,jme, kms,kme, & |
|---|
| 523 | its,ite, jts,jte, kts,kte ) |
|---|
| 524 | !---------------------------------------------------------------- |
|---|
| 525 | IMPLICIT NONE |
|---|
| 526 | !---------------------------------------------------------------- |
|---|
| 527 | LOGICAL , INTENT(IN) :: allowed_to_read |
|---|
| 528 | LOGICAL , INTENT(IN) :: start_of_simulation |
|---|
| 529 | INTEGER, INTENT(IN ) :: ids,ide, jds,jde, kds,kde, & |
|---|
| 530 | ims,ime, jms,jme, kms,kme, & |
|---|
| 531 | its,ite, jts,jte, kts,kte |
|---|
| 532 | |
|---|
| 533 | INTEGER, INTENT(IN ) :: num_soil_layers |
|---|
| 534 | ! |
|---|
| 535 | REAL, DIMENSION( ims:ime , 1:num_soil_layers , jms:jme ), INTENT(INOUT) :: TSLB |
|---|
| 536 | |
|---|
| 537 | REAL, DIMENSION(1:num_soil_layers), INTENT(IN) :: ZS,DZS |
|---|
| 538 | |
|---|
| 539 | REAL, DIMENSION( ims:ime, jms:jme ) , & |
|---|
| 540 | INTENT(IN) :: TSK, & |
|---|
| 541 | TMN |
|---|
| 542 | |
|---|
| 543 | ! LOCAR VAR |
|---|
| 544 | |
|---|
| 545 | INTEGER :: L,J,I,itf,jtf |
|---|
| 546 | CHARACTER*1024 message |
|---|
| 547 | |
|---|
| 548 | !---------------------------------------------------------------- |
|---|
| 549 | |
|---|
| 550 | itf=min0(ite,ide-1) |
|---|
| 551 | jtf=min0(jte,jde-1) |
|---|
| 552 | |
|---|
| 553 | END SUBROUTINE slabinit |
|---|
| 554 | !------------------------------------------------------------------- |
|---|
| 555 | |
|---|
| 556 | END MODULE module_sf_slab |
|---|