Changeset 4898 for branches/2014
- Timestamp:
- 2014-11-27T16:14:11+01:00 (9 years ago)
- Location:
- branches/2014/dev_CNRS_2014/NEMOGCM
- Files:
-
- 2 edited
-
CONFIG/SHARED/namelist_ref (modified) (1 diff)
-
NEMO/OPA_SRC/SBC/sbcblk_core.F90 (modified) (26 diffs)
Legend:
- Unmodified
- Added
- Removed
-
branches/2014/dev_CNRS_2014/NEMOGCM/CONFIG/SHARED/namelist_ref
r4897 r4898 304 304 305 305 cn_dir = './' ! root directory for the location of the bulk files 306 ln_2m = .false. ! air temperature and humidity referenced at 2m (T) instead 10m (F)307 306 ln_taudif = .false. ! HF tau contribution: use "mean of stress module - module of the mean stress" data 308 ln_bulk2z = .false. ! Air temperature/humidity and wind vectors are referenced at heights rn_zqt and rn_zu 309 rn_zqt = 3. ! Air temperature and humidity reference height (m) (ln_bulk2z) 310 rn_zu = 4. ! Wind vector reference height (m) (ln_bulk2z) 307 rn_zqt = 10. ! Air temperature and humidity reference height (m) 308 rn_zu = 10. ! Wind vector reference height (m) 311 309 rn_pfac = 1. ! multiplicative factor for precipitation (total & snow) 312 310 rn_efac = 1. ! multiplicative factor for evaporation (0. or 1.) -
branches/2014/dev_CNRS_2014/NEMOGCM/NEMO/OPA_SRC/SBC/sbcblk_core.F90
r4897 r4898 5 5 !!===================================================================== 6 6 !! History : 1.0 ! 2004-08 (U. Schweckendiek) Original code 7 !! 2.0 ! 2005-04 (L. Brodeau, A.M. Treguier) additions: 7 !! 2.0 ! 2005-04 (L. Brodeau, A.M. Treguier) additions: 8 8 !! - new bulk routine for efficiency 9 9 !! - WINDS ARE NOW ASSUMED TO BE AT T POINTS in input files !!!! 10 !! - file names and file characteristics in namelist 11 !! - Implement reading of 6-hourly fields 12 !! 3.0 ! 2006-06 (G. Madec) sbc rewritting 13 !! - ! 2006-12 (L. Brodeau) Original code for TURB_CORE_2Z10 !! - file names and file characteristics in namelist 11 !! - Implement reading of 6-hourly fields 12 !! 3.0 ! 2006-06 (G. Madec) sbc rewritting 13 !! - ! 2006-12 (L. Brodeau) Original code for turb_core_2z 14 14 !! 3.2 ! 2009-04 (B. Lemaire) Introduce iom_put 15 15 !! 3.3 ! 2010-10 (S. Masson) add diurnal cycle 16 16 !! 3.4 ! 2011-11 (C. Harris) Fill arrays required by CICE 17 !! 3.7 ! 2014-06 (L. Brodeau) simplification and optimization of CORE bulk 17 18 !!---------------------------------------------------------------------- 18 19 19 20 !!---------------------------------------------------------------------- 20 !! sbc_blk_core : bulk formulation as ocean surface boundary condition 21 !! (forced mode, CORE bulk formulea) 22 !! blk_oce_core : ocean: computes momentum, heat and freshwater fluxes 23 !! blk_ice_core : ice : computes momentum, heat and freshwater fluxes 24 !! turb_core : computes the CORE turbulent transfer coefficients 21 !! sbc_blk_core : bulk formulation as ocean surface boundary condition (forced mode, CORE bulk formulea) 22 !! blk_oce_core : computes momentum, heat and freshwater fluxes over ocean 23 !! blk_ice_core : computes momentum, heat and freshwater fluxes over ice 24 !! blk_bio_meanqsr : compute daily mean short wave radiation over the ocean 25 !! blk_ice_meanqsr : compute daily mean short wave radiation over the ice 26 !! turb_core_2z : Computes turbulent transfert coefficients 27 !! cd_neutral_10m : Estimate of the neutral drag coefficient at 10m 28 !! psi_m : universal profile stability function for momentum 29 !! psi_h : universal profile stability function for temperature and humidity 25 30 !!---------------------------------------------------------------------- 26 31 USE oce ! ocean dynamics and tracers … … 38 43 USE lbclnk ! ocean lateral boundary conditions (or mpp link) 39 44 USE prtctl ! Print control 40 USE sbcwave, ONLY : cdn_wave !wave module45 USE sbcwave, ONLY : cdn_wave ! wave module 41 46 #if defined key_lim3 || defined key_cice 42 47 USE sbc_ice ! Surface boundary condition: ice fields … … 52 57 PUBLIC turb_core_2z ! routine calles in sbcblk_mfs module 53 58 54 INTEGER , PARAMETER :: jpfld = 9 ! maximum number of files to read 59 INTEGER , PARAMETER :: jpfld = 9 ! maximum number of files to read 55 60 INTEGER , PARAMETER :: jp_wndi = 1 ! index of 10m wind velocity (i-component) (m/s) at T-point 56 61 INTEGER , PARAMETER :: jp_wndj = 2 ! index of 10m wind velocity (j-component) (m/s) at T-point … … 62 67 INTEGER , PARAMETER :: jp_snow = 8 ! index of snow (solid prcipitation) (kg/m2/s) 63 68 INTEGER , PARAMETER :: jp_tdif = 9 ! index of tau diff associated to HF tau (N/m2) at T-point 64 69 65 70 TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf ! structure of input fields (file informations, fields read) 66 71 67 72 ! !!! CORE bulk parameters 68 73 REAL(wp), PARAMETER :: rhoa = 1.22 ! air density … … 75 80 76 81 ! !!* Namelist namsbc_core : CORE bulk parameters 77 LOGICAL :: ln_2m ! logical flag for height of air temp. and hum78 82 LOGICAL :: ln_taudif ! logical flag to use the "mean of stress module - module of mean stress" data 79 83 REAL(wp) :: rn_pfac ! multiplication factor for precipitation 80 84 REAL(wp) :: rn_efac ! multiplication factor for evaporation (clem) 81 85 REAL(wp) :: rn_vfac ! multiplication factor for ice/ocean velocity in the calculation of wind stress (clem) 82 LOGICAL :: ln_bulk2z ! logical flag for case where z(q,t) and z(u) are specified in the namelist83 86 REAL(wp) :: rn_zqt ! z(q,t) : height of humidity and temperature measurements 84 87 REAL(wp) :: rn_zu ! z(u) : height of wind measurements … … 88 91 # include "vectopt_loop_substitute.h90" 89 92 !!---------------------------------------------------------------------- 90 !! NEMO/OPA 3. 3 , NEMO-consortium (2010)93 !! NEMO/OPA 3.7 , NEMO-consortium (2014) 91 94 !! $Id$ 92 95 !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) … … 97 100 !!--------------------------------------------------------------------- 98 101 !! *** ROUTINE sbc_blk_core *** 99 !! 102 !! 100 103 !! ** Purpose : provide at each time step the surface ocean fluxes 101 !! (momentum, heat, freshwater and runoff) 104 !! (momentum, heat, freshwater and runoff) 102 105 !! 103 106 !! ** Method : (1) READ each fluxes in NetCDF files: … … 123 126 !! - sfx salt flux due to freezing/melting (non-zero only if ice is present) 124 127 !! (set in limsbc(_2).F90) 128 !! 129 !! ** References : Large & Yeager, 2004 / Large & Yeager, 2008 130 !! Brodeau et al. Ocean Modelling 2010 125 131 !!---------------------------------------------------------------------- 126 132 INTEGER, INTENT(in) :: kt ! ocean time step 127 ! !133 ! 128 134 INTEGER :: ierror ! return error code 129 135 INTEGER :: ifpr ! dummy loop indice 130 136 INTEGER :: jfld ! dummy loop arguments 131 137 INTEGER :: ios ! Local integer output status for namelist read 132 ! !138 ! 133 139 CHARACTER(len=100) :: cn_dir ! Root directory for location of core files 134 140 TYPE(FLD_N), DIMENSION(jpfld) :: slf_i ! array of namelist informations on the fields to read … … 136 142 TYPE(FLD_N) :: sn_qlw , sn_tair, sn_prec, sn_snow ! " " 137 143 TYPE(FLD_N) :: sn_tdif ! " " 138 NAMELIST/namsbc_core/ cn_dir , ln_ 2m , ln_taudif, rn_pfac, rn_efac, rn_vfac, &144 NAMELIST/namsbc_core/ cn_dir , ln_taudif, rn_pfac, rn_efac, rn_vfac, & 139 145 & sn_wndi, sn_wndj, sn_humi , sn_qsr , & 140 146 & sn_qlw , sn_tair, sn_prec , sn_snow, & 141 & sn_tdif, rn_zqt , ln_bulk2z,rn_zu142 !!--------------------------------------------------------------------- 143 147 & sn_tdif, rn_zqt, rn_zu 148 !!--------------------------------------------------------------------- 149 ! 144 150 ! ! ====================== ! 145 151 IF( kt == nit000 ) THEN ! First call kt=nit000 ! … … 149 155 READ ( numnam_ref, namsbc_core, IOSTAT = ios, ERR = 901) 150 156 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_core in reference namelist', lwp ) 151 157 ! 152 158 REWIND( numnam_cfg ) ! Namelist namsbc_core in configuration namelist : CORE bulk parameters 153 159 READ ( numnam_cfg, namsbc_core, IOSTAT = ios, ERR = 902 ) 154 160 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_core in configuration namelist', lwp ) 155 161 156 IF(lwm)WRITE ( numond, namsbc_core )162 WRITE ( numond, namsbc_core ) 157 163 ! ! check: do we plan to use ln_dm2dc with non-daily forcing? 158 IF( ln_dm2dc .AND. sn_qsr%nfreqh /= 24 ) & 159 & CALL ctl_stop( 'sbc_blk_core: ln_dm2dc can be activated only with daily short-wave forcing' ) 164 IF( ln_dm2dc .AND. sn_qsr%nfreqh /= 24 ) & 165 & CALL ctl_stop( 'sbc_blk_core: ln_dm2dc can be activated only with daily short-wave forcing' ) 160 166 IF( ln_dm2dc .AND. sn_qsr%ln_tint ) THEN 161 167 CALL ctl_warn( 'sbc_blk_core: ln_dm2dc is taking care of the temporal interpolation of daily qsr', & 162 168 & ' ==> We force time interpolation = .false. for qsr' ) 163 169 sn_qsr%ln_tint = .false. 164 170 ENDIF … … 169 175 slf_i(jp_prec) = sn_prec ; slf_i(jp_snow) = sn_snow 170 176 slf_i(jp_tdif) = sn_tdif 171 ! 177 ! 172 178 lhftau = ln_taudif ! do we use HF tau information? 173 179 jfld = jpfld - COUNT( (/.NOT. lhftau/) ) … … 191 197 IF( MOD( kt - 1, nn_fsbc ) == 0 ) CALL blk_oce_core( kt, sf, sst_m, ssu_m, ssv_m ) 192 198 193 ! If diurnal cycle is activated, compute a daily mean short waves flux for biogeochemistery 199 ! If diurnal cycle is activated, compute a daily mean short waves flux for biogeochemistery 194 200 IF( ltrcdm2dc ) CALL blk_bio_meanqsr 195 201 … … 269 275 zwnd_j(:,:) = 0.e0 270 276 #if defined key_cyclone 271 CALL wnd_cyc( kt, zwnd_i, zwnd_j ) 277 CALL wnd_cyc( kt, zwnd_i, zwnd_j ) ! add analytical tropical cyclone (Vincent et al. JGR 2012) 272 278 DO jj = 2, jpjm1 273 279 DO ji = fs_2, fs_jpim1 ! vect. opt. … … 292 298 ! I Radiative FLUXES ! 293 299 ! ----------------------------------------------------------------------------- ! 294 300 295 301 ! ocean albedo assumed to be constant + modify now Qsr to include the diurnal cycle ! Short Wave 296 302 zztmp = 1. - albo … … 298 304 ELSE ; qsr(:,:) = zztmp * sf(jp_qsr)%fnow(:,:,1) * tmask(:,:,1) 299 305 ENDIF 300 !CDIR COLLAPSE301 306 zqlw(:,:) = ( sf(jp_qlw)%fnow(:,:,1) - Stef * zst(:,:)*zst(:,:)*zst(:,:)*zst(:,:) ) * tmask(:,:,1) ! Long Wave 302 307 ! ----------------------------------------------------------------------------- ! … … 305 310 306 311 ! ... specific humidity at SST and IST 307 !CDIR NOVERRCHK 308 !CDIR COLLAPSE 309 zqsatw(:,:) = zcoef_qsatw * EXP( -5107.4 / zst(:,:) ) 312 zqsatw(:,:) = zcoef_qsatw * EXP( -5107.4 / zst(:,:) ) 310 313 311 314 ! ... NCAR Bulk formulae, computation of Cd, Ch, Ce at T-point : 312 IF( ln_2m ) THEN 313 !! If air temp. and spec. hum. are given at different height (2m) than wind (10m) : 314 CALL TURB_CORE_2Z(2.,10., zst , sf(jp_tair)%fnow, & 315 & zqsatw, sf(jp_humi)%fnow, wndm, & 316 & Cd , Ch , Ce , & 317 & zt_zu , zq_zu ) 318 ELSE IF( ln_bulk2z ) THEN 319 !! If the height of the air temp./spec. hum. and wind are to be specified by hand : 320 IF( rn_zqt == rn_zu ) THEN 321 !! If air temp. and spec. hum. are at the same height as wind : 322 CALL TURB_CORE_1Z( rn_zu, zst , sf(jp_tair)%fnow(:,:,1), & 323 & zqsatw, sf(jp_humi)%fnow(:,:,1), wndm, & 324 & Cd , Ch , Ce ) 325 ELSE 326 !! If air temp. and spec. hum. are at a different height to wind : 327 CALL TURB_CORE_2Z(rn_zqt, rn_zu , zst , sf(jp_tair)%fnow, & 328 & zqsatw, sf(jp_humi)%fnow, wndm, & 329 & Cd , Ch , Ce , & 330 & zt_zu , zq_zu ) 331 ENDIF 332 ELSE 333 !! If air temp. and spec. hum. are given at same height than wind (10m) : 334 !gm bug? at the compiling phase, add a copy in temporary arrays... ==> check perf 335 ! CALL TURB_CORE_1Z( 10., zst (:,:), sf(jp_tair)%fnow(:,:), & 336 ! & zqsatw(:,:), sf(jp_humi)%fnow(:,:), wndm(:,:), & 337 ! & Cd (:,:), Ch (:,:), Ce (:,:) ) 338 !gm bug 339 ! ARPDBG - this won't compile with gfortran. Fix but check performance 340 ! as per comment above. 341 CALL TURB_CORE_1Z( 10., zst , sf(jp_tair)%fnow(:,:,1), & 342 & zqsatw, sf(jp_humi)%fnow(:,:,1), wndm, & 343 & Cd , Ch , Ce ) 344 ENDIF 345 315 CALL turb_core_2z( rn_zqt, rn_zu, zst, sf(jp_tair)%fnow, zqsatw, sf(jp_humi)%fnow, wndm, & 316 & Cd, Ch, Ce, zt_zu, zq_zu ) 317 346 318 ! ... tau module, i and j component 347 319 DO jj = 1, jpj … … 355 327 356 328 ! ... add the HF tau contribution to the wind stress module? 357 IF( lhftau ) THEN 358 !CDIR COLLAPSE 329 IF( lhftau ) THEN 359 330 taum(:,:) = taum(:,:) + sf(jp_tdif)%fnow(:,:,1) 360 331 ENDIF … … 372 343 CALL lbc_lnk( vtau(:,:), 'V', -1. ) 373 344 345 374 346 ! Turbulent fluxes over ocean 375 347 ! ----------------------------- 376 IF( ln_2m .OR. ( ln_bulk2z .AND. rn_zqt /= rn_zu )) THEN377 ! Values of temp. and hum. adjusted to height of wind must be used378 zevap(:,:) = rn_efac * MAX( 0.e0, rhoa *Ce(:,:)*( zqsatw(:,:) - zq_zu(:,:) ) * wndm(:,:) )! Evaporation379 zqsb (:,:) = rhoa*cpa*Ch(:,:)*( zst (:,:) - zt_zu(:,:) ) * wndm(:,:)! Sensible Heat348 IF( ABS( rn_zu - rn_zqt) < 0.01_wp ) THEN 349 !! q_air and t_air are (or "are almost") given at 10m (wind reference height) 350 zevap(:,:) = rn_efac*MAX( 0._wp, rhoa*Ce(:,:)*( zqsatw(:,:) - sf(jp_humi)%fnow(:,:,1) )*wndm(:,:) ) ! Evaporation 351 zqsb (:,:) = cpa*rhoa*Ch(:,:)*( zst (:,:) - sf(jp_tair)%fnow(:,:,1) )*wndm(:,:) ! Sensible Heat 380 352 ELSE 381 !CDIR COLLAPSE 382 zevap(:,:) = rn_efac * MAX( 0.e0, rhoa *Ce(:,:)*( zqsatw(:,:) - sf(jp_humi)%fnow(:,:,1) ) * wndm(:,:) ) ! Evaporation383 !CDIR COLLAPSE 384 zqsb (:,:) = rhoa*cpa*Ch(:,:)*( zst (:,:) - sf(jp_tair)%fnow(:,:,1) ) *wndm(:,:) ! Sensible Heat353 !! q_air and t_air are not given at 10m (wind reference height) 354 ! Values of temp. and hum. adjusted to height of wind during bulk algorithm iteration must be used!!! 355 zevap(:,:) = rn_efac*MAX( 0.e0, rhoa*Ce(:,:)*( zqsatw(:,:) - zq_zu(:,:) )*wndm(:,:) ) ! Evaporation 356 zqsb (:,:) = cpa*rhoa*Ch(:,:)*( zst (:,:) - zt_zu(:,:) )*wndm(:,:) ! Sensible Heat 385 357 ENDIF 386 !CDIR COLLAPSE387 358 zqla (:,:) = Lv * zevap(:,:) ! Latent Heat 388 359 … … 401 372 ! III Total FLUXES ! 402 373 ! ----------------------------------------------------------------------------- ! 403 404 !CDIR COLLAPSE 374 ! 405 375 emp (:,:) = ( zevap(:,:) & ! mass flux (evap. - precip.) 406 376 & - sf(jp_prec)%fnow(:,:,1) * rn_pfac ) * tmask(:,:,1) 407 !CDIR COLLAPSE408 377 qns(:,:) = zqlw(:,:) - zqsb(:,:) - zqla(:,:) & ! Downward Non Solar flux 409 378 & - sf(jp_snow)%fnow(:,:,1) * rn_pfac * lfus & ! remove latent melting heat for solid precip 410 379 & - zevap(:,:) * pst(:,:) * rcp & ! remove evap heat content at SST 411 380 & + ( sf(jp_prec)%fnow(:,:,1) - sf(jp_snow)%fnow(:,:,1) ) * rn_pfac & ! add liquid precip heat content at Tair 412 & * ( sf(jp_tair)%fnow(:,:,1) - rt0 ) * rcp & 381 & * ( sf(jp_tair)%fnow(:,:,1) - rt0 ) * rcp & 413 382 & + sf(jp_snow)%fnow(:,:,1) * rn_pfac & ! add solid precip heat content at min(Tair,Tsnow) 414 383 & * ( MIN( sf(jp_tair)%fnow(:,:,1), rt0_snow ) - rt0 ) * cpic … … 434 403 ! 435 404 END SUBROUTINE blk_oce_core 436 437 438 SUBROUTINE blk_bio_meanqsr439 !!---------------------------------------------------------------------440 !! *** ROUTINE blk_bio_meanqsr441 !!442 !! ** Purpose : provide daily qsr_mean for PISCES when443 !! analytic diurnal cycle is applied in physic444 !!445 !! ** Method : add part where there is no ice446 !!447 !!---------------------------------------------------------------------448 IF( nn_timing == 1 ) CALL timing_start('blk_bio_meanqsr')449 !450 qsr_mean(:,:) = (1. - albo ) * sf(jp_qsr)%fnow(:,:,1)451 !452 IF( nn_timing == 1 ) CALL timing_stop('blk_bio_meanqsr')453 !454 END SUBROUTINE blk_bio_meanqsr455 456 457 SUBROUTINE blk_ice_meanqsr(palb,p_qsr_mean,pdim)458 !!---------------------------------------------------------------------459 !!460 !! ** Purpose : provide the daily qsr_mean over sea_ice for PISCES when461 !! analytic diurnal cycle is applied in physic462 !!463 !! ** Method : compute qsr464 !!465 !!---------------------------------------------------------------------466 REAL(wp), DIMENSION(:,:,:), INTENT(in ) :: palb ! ice albedo (clear sky) (alb_ice_cs) [%]467 REAL(wp), DIMENSION(:,:,:), INTENT( out) :: p_qsr_mean ! solar heat flux over ice (T-point) [W/m2]468 INTEGER , INTENT(in ) :: pdim ! number of ice categories469 !!470 INTEGER :: ijpl ! number of ice categories (size of 3rd dim of input arrays)471 INTEGER :: ji, jj, jl ! dummy loop indices472 REAL(wp) :: zztmp ! temporary variable473 !!---------------------------------------------------------------------474 IF( nn_timing == 1 ) CALL timing_start('blk_ice_meanqsr')475 !476 ijpl = pdim ! number of ice categories477 zztmp = 1. / ( 1. - albo )478 ! ! ========================== !479 DO jl = 1, ijpl ! Loop over ice categories !480 ! ! ========================== !481 DO jj = 1 , jpj482 DO ji = 1, jpi483 p_qsr_mean(ji,jj,jl) = zztmp * ( 1. - palb(ji,jj,jl) ) * qsr_mean(ji,jj)484 END DO485 END DO486 END DO487 !488 IF( nn_timing == 1 ) CALL timing_stop('blk_ice_meanqsr')489 !490 END SUBROUTINE blk_ice_meanqsr491 405 492 406 … … 572 486 CASE( 'I' ) ! B-grid ice dynamics : I-point (i.e. F-point with sea-ice indexation) 573 487 ! and scalar wind at T-point ( = | U10m - U_ice | ) (masked) 574 !CDIR NOVERRCHK575 488 DO jj = 2, jpjm1 576 489 DO ji = 2, jpim1 ! B grid : NO vector opt … … 660 573 ! ----------------------------! 661 574 ! Downward Non Solar flux 662 p_qns (ji,jj,jl) = z_qlw (ji,jj,jl) - z_qsb (ji,jj,jl) - p_qla (ji,jj,jl) 575 p_qns (ji,jj,jl) = z_qlw (ji,jj,jl) - z_qsb (ji,jj,jl) - p_qla (ji,jj,jl) 663 576 ! Total non solar heat flux sensitivity for ice 664 p_dqns(ji,jj,jl) = - ( z_dqlw(ji,jj,jl) + z_dqsb(ji,jj,jl) + p_dqla(ji,jj,jl) ) 577 p_dqns(ji,jj,jl) = - ( z_dqlw(ji,jj,jl) + z_dqsb(ji,jj,jl) + p_dqla(ji,jj,jl) ) 665 578 END DO 666 579 ! … … 673 586 ! thin surface layer and penetrates inside the ice cover 674 587 ! ( Maykut and Untersteiner, 1971 ; Ebert and Curry, 1993 ) 675 676 !CDIR COLLAPSE 588 677 589 p_fr1(:,:) = ( 0.18 * ( 1.0 - zcoef_frca ) + 0.35 * zcoef_frca ) 678 !CDIR COLLAPSE679 590 p_fr2(:,:) = ( 0.82 * ( 1.0 - zcoef_frca ) + 0.65 * zcoef_frca ) 680 681 !CDIR COLLAPSE 591 682 592 p_tpr(:,:) = sf(jp_prec)%fnow(:,:,1) * rn_pfac ! total precipitation [kg/m2/s] 683 !CDIR COLLAPSE684 593 p_spr(:,:) = sf(jp_snow)%fnow(:,:,1) * rn_pfac ! solid precipitation [kg/m2/s] 685 CALL iom_put( 'snowpre', p_spr * 86400. ) ! Snow precipitation 686 CALL iom_put( 'precip' , p_tpr * 86400. ) ! Total precipitation 594 CALL iom_put( 'snowpre', p_spr * 86400. ) ! Snow precipitation 595 CALL iom_put( 'precip' , p_tpr * 86400. ) ! Total precipitation 687 596 ! 688 597 IF(ln_ctl) THEN … … 698 607 699 608 CALL wrk_dealloc( jpi,jpj, z_wnds_t ) 700 CALL wrk_dealloc( jpi,jpj,pdim, z_qlw, z_qsb, z_dqlw, z_dqsb ) 609 CALL wrk_dealloc( jpi,jpj,pdim, z_qlw, z_qsb, z_dqlw, z_dqsb ) 701 610 ! 702 611 IF( nn_timing == 1 ) CALL timing_stop('blk_ice_core') 703 612 ! 704 613 END SUBROUTINE blk_ice_core 705 706 707 SUBROUTINE TURB_CORE_1Z(zu, sst, T_a, q_sat, q_a, & 708 & dU , Cd , Ch , Ce ) 614 615 616 SUBROUTINE blk_bio_meanqsr 617 !!--------------------------------------------------------------------- 618 !! *** ROUTINE blk_bio_meanqsr 619 !! 620 !! ** Purpose : provide daily qsr_mean for PISCES when 621 !! analytic diurnal cycle is applied in physic 622 !! 623 !! ** Method : add part where there is no ice 624 !! 625 !!--------------------------------------------------------------------- 626 IF( nn_timing == 1 ) CALL timing_start('blk_bio_meanqsr') 627 ! 628 qsr_mean(:,:) = (1. - albo ) * sf(jp_qsr)%fnow(:,:,1) 629 ! 630 IF( nn_timing == 1 ) CALL timing_stop('blk_bio_meanqsr') 631 ! 632 END SUBROUTINE blk_bio_meanqsr 633 634 635 SUBROUTINE blk_ice_meanqsr( palb, p_qsr_mean, pdim ) 636 !!--------------------------------------------------------------------- 637 !! 638 !! ** Purpose : provide the daily qsr_mean over sea_ice for PISCES when 639 !! analytic diurnal cycle is applied in physic 640 !! 641 !! ** Method : compute qsr 642 !! 643 !!--------------------------------------------------------------------- 644 REAL(wp), DIMENSION(:,:,:), INTENT(in ) :: palb ! ice albedo (clear sky) (alb_ice_cs) [%] 645 REAL(wp), DIMENSION(:,:,:), INTENT( out) :: p_qsr_mean ! solar heat flux over ice (T-point) [W/m2] 646 INTEGER , INTENT(in ) :: pdim ! number of ice categories 647 ! 648 INTEGER :: ijpl ! number of ice categories (size of 3rd dim of input arrays) 649 INTEGER :: ji, jj, jl ! dummy loop indices 650 REAL(wp) :: zztmp ! temporary variable 651 !!--------------------------------------------------------------------- 652 IF( nn_timing == 1 ) CALL timing_start('blk_ice_meanqsr') 653 ! 654 ijpl = pdim ! number of ice categories 655 zztmp = 1. / ( 1. - albo ) 656 ! ! ========================== ! 657 DO jl = 1, ijpl ! Loop over ice categories ! 658 ! ! ========================== ! 659 DO jj = 1 , jpj 660 DO ji = 1, jpi 661 p_qsr_mean(ji,jj,jl) = zztmp * ( 1. - palb(ji,jj,jl) ) * qsr_mean(ji,jj) 662 END DO 663 END DO 664 END DO 665 ! 666 IF( nn_timing == 1 ) CALL timing_stop('blk_ice_meanqsr') 667 ! 668 END SUBROUTINE blk_ice_meanqsr 669 670 671 SUBROUTINE turb_core_2z( zt, zu, sst, T_zt, q_sat, q_zt, dU, & 672 & Cd, Ch, Ce , T_zu, q_zu ) 709 673 !!---------------------------------------------------------------------- 710 674 !! *** ROUTINE turb_core *** 711 675 !! 712 676 !! ** Purpose : Computes turbulent transfert coefficients of surface 713 !! fluxes according to Large & Yeager (2004) 714 !! 715 !! ** Method : I N E R T I A L D I S S I P A T I O N M E T H O D 716 !! Momentum, Latent and sensible heat exchange coefficients 717 !! Caution: this procedure should only be used in cases when air 718 !! temperature (T_air), air specific humidity (q_air) and wind (dU) 719 !! are provided at the same height 'zzu'! 720 !! 721 !! References : Large & Yeager, 2004 : ??? 722 !!---------------------------------------------------------------------- 723 REAL(wp) , INTENT(in ) :: zu ! altitude of wind measurement [m] 724 REAL(wp), DIMENSION(:,:), INTENT(in ) :: sst ! sea surface temperature [Kelvin] 725 REAL(wp), DIMENSION(:,:), INTENT(in ) :: T_a ! potential air temperature [Kelvin] 726 REAL(wp), DIMENSION(:,:), INTENT(in ) :: q_sat ! sea surface specific humidity [kg/kg] 727 REAL(wp), DIMENSION(:,:), INTENT(in ) :: q_a ! specific air humidity [kg/kg] 728 REAL(wp), DIMENSION(:,:), INTENT(in ) :: dU ! wind module |U(zu)-U(0)| [m/s] 729 REAL(wp), DIMENSION(:,:), INTENT( out) :: Cd ! transfert coefficient for momentum (tau) 730 REAL(wp), DIMENSION(:,:), INTENT( out) :: Ch ! transfert coefficient for temperature (Q_sens) 731 REAL(wp), DIMENSION(:,:), INTENT( out) :: Ce ! transfert coefficient for evaporation (Q_lat) 732 !! 733 INTEGER :: j_itt 734 INTEGER , PARAMETER :: nb_itt = 3 735 REAL(wp), PARAMETER :: grav = 9.8 ! gravity 736 REAL(wp), PARAMETER :: kappa = 0.4 ! von Karman s constant 737 738 REAL(wp), DIMENSION(:,:), POINTER :: dU10 ! dU [m/s] 739 REAL(wp), DIMENSION(:,:), POINTER :: dT ! air/sea temperature differeence [K] 740 REAL(wp), DIMENSION(:,:), POINTER :: dq ! air/sea humidity difference [K] 741 REAL(wp), DIMENSION(:,:), POINTER :: Cd_n10 ! 10m neutral drag coefficient 742 REAL(wp), DIMENSION(:,:), POINTER :: Ce_n10 ! 10m neutral latent coefficient 743 REAL(wp), DIMENSION(:,:), POINTER :: Ch_n10 ! 10m neutral sensible coefficient 744 REAL(wp), DIMENSION(:,:), POINTER :: sqrt_Cd_n10 ! root square of Cd_n10 745 REAL(wp), DIMENSION(:,:), POINTER :: sqrt_Cd ! root square of Cd 746 REAL(wp), DIMENSION(:,:), POINTER :: T_vpot ! virtual potential temperature [K] 747 REAL(wp), DIMENSION(:,:), POINTER :: T_star ! turbulent scale of tem. fluct. 748 REAL(wp), DIMENSION(:,:), POINTER :: q_star ! turbulent humidity of temp. fluct. 749 REAL(wp), DIMENSION(:,:), POINTER :: U_star ! turb. scale of velocity fluct. 750 REAL(wp), DIMENSION(:,:), POINTER :: L ! Monin-Obukov length [m] 751 REAL(wp), DIMENSION(:,:), POINTER :: zeta ! stability parameter at height zu 752 REAL(wp), DIMENSION(:,:), POINTER :: U_n10 ! neutral wind velocity at 10m [m] 753 REAL(wp), DIMENSION(:,:), POINTER :: xlogt, xct, zpsi_h, zpsi_m 754 755 INTEGER , DIMENSION(:,:), POINTER :: stab ! 1st guess stability test integer 756 !!---------------------------------------------------------------------- 757 ! 758 IF( nn_timing == 1 ) CALL timing_start('TURB_CORE_1Z') 759 ! 760 CALL wrk_alloc( jpi,jpj, stab ) ! integer 761 CALL wrk_alloc( jpi,jpj, dU10, dT, dq, Cd_n10, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd, L ) 762 CALL wrk_alloc( jpi,jpj, T_vpot, T_star, q_star, U_star, zeta, U_n10, xlogt, xct, zpsi_h, zpsi_m ) 763 764 !! * Start 765 !! Air/sea differences 766 dU10 = max(0.5, dU) ! we don't want to fall under 0.5 m/s 767 dT = T_a - sst ! assuming that T_a is allready the potential temp. at zzu 768 dq = q_a - q_sat 769 !! 770 !! Virtual potential temperature 771 T_vpot = T_a*(1. + 0.608*q_a) 772 !! 773 !! Neutral Drag Coefficient 774 stab = 0.5 + sign(0.5,dT) ! stable : stab = 1 ; unstable : stab = 0 775 IF ( ln_cdgw ) THEN 776 cdn_wave = cdn_wave - rsmall*(tmask(:,:,1)-1) 777 Cd_n10(:,:) = cdn_wave 778 ELSE 779 Cd_n10 = 1.e-3 * ( 2.7/dU10 + 0.142 + dU10/13.09 ) ! L & Y eq. (6a) 780 ENDIF 781 sqrt_Cd_n10 = sqrt(Cd_n10) 782 Ce_n10 = 1.e-3 * ( 34.6 * sqrt_Cd_n10 ) ! L & Y eq. (6b) 783 Ch_n10 = 1.e-3*sqrt_Cd_n10*(18.*stab + 32.7*(1.-stab)) ! L & Y eq. (6c), (6d) 784 !! 785 !! Initializing transfert coefficients with their first guess neutral equivalents : 786 Cd = Cd_n10 ; Ce = Ce_n10 ; Ch = Ch_n10 ; sqrt_Cd = sqrt(Cd) 787 788 !! * Now starting iteration loop 789 DO j_itt=1, nb_itt 790 !! Turbulent scales : 791 U_star = sqrt_Cd*dU10 ! L & Y eq. (7a) 792 T_star = Ch/sqrt_Cd*dT ! L & Y eq. (7b) 793 q_star = Ce/sqrt_Cd*dq ! L & Y eq. (7c) 794 795 !! Estimate the Monin-Obukov length : 796 L = U_star*U_star / ( kappa*grav*(T_star/T_vpot + q_star/(q_a + 1./0.608)) ) 797 !!gm !lolo suggestion ...... TO BE TAKEN ? 798 !! L = U_star*U_star / ( kappa*grav/T_vpot*(T_star*(1. + 0.608*q_a) + 0.608*T_a*q_star) ) 799 !!gm !lolo. 800 801 !! Stability parameters : 802 zeta = zu/L ; zeta = sign( min(abs(zeta),10.0), zeta ) 803 zpsi_h = psi_h(zeta) 804 zpsi_m = psi_m(zeta) 805 806 IF ( ln_cdgw ) THEN 807 sqrt_Cd=kappa/((kappa/sqrt_Cd_n10) - zpsi_m) ; Cd=sqrt_Cd*sqrt_Cd; 808 ELSE 809 !! Shifting the wind speed to 10m and neutral stability : 810 U_n10 = dU10*1./(1. + sqrt_Cd_n10/kappa*(log(zu/10.) - zpsi_m)) ! L & Y eq. (9a) 811 812 !! Updating the neutral 10m transfer coefficients : 813 Cd_n10 = 1.e-3 * (2.7/U_n10 + 0.142 + U_n10/13.09) ! L & Y eq. (6a) 814 sqrt_Cd_n10 = sqrt(Cd_n10) 815 Ce_n10 = 1.e-3 * (34.6 * sqrt_Cd_n10) ! L & Y eq. (6b) 816 stab = 0.5 + sign(0.5,zeta) 817 Ch_n10 = 1.e-3*sqrt_Cd_n10*(18.*stab + 32.7*(1.-stab)) ! L & Y eq. (6c), (6d) 818 819 !! Shifting the neutral 10m transfer coefficients to ( zu , zeta ) : 820 !! 821 xct = 1. + sqrt_Cd_n10/kappa*(log(zu/10) - zpsi_m) 822 Cd = Cd_n10/(xct*xct) ; sqrt_Cd = sqrt(Cd) 823 ENDIF 824 !! 825 xlogt = log(zu/10.) - zpsi_h 826 !! 827 xct = 1. + Ch_n10*xlogt/kappa/sqrt_Cd_n10 828 Ch = Ch_n10*sqrt_Cd/sqrt_Cd_n10/xct 829 !! 830 xct = 1. + Ce_n10*xlogt/kappa/sqrt_Cd_n10 831 Ce = Ce_n10*sqrt_Cd/sqrt_Cd_n10/xct 832 !! 833 END DO 834 !! 835 CALL wrk_dealloc( jpi,jpj, stab ) ! integer 836 CALL wrk_dealloc( jpi,jpj, dU10, dT, dq, Cd_n10, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd, L ) 837 CALL wrk_dealloc( jpi,jpj, T_vpot, T_star, q_star, U_star, zeta, U_n10, xlogt, xct, zpsi_h, zpsi_m ) 838 ! 839 IF( nn_timing == 1 ) CALL timing_stop('TURB_CORE_1Z') 840 ! 841 END SUBROUTINE TURB_CORE_1Z 842 843 844 SUBROUTINE TURB_CORE_2Z(zt, zu, sst, T_zt, q_sat, q_zt, dU, Cd, Ch, Ce, T_zu, q_zu) 845 !!---------------------------------------------------------------------- 846 !! *** ROUTINE turb_core *** 847 !! 848 !! ** Purpose : Computes turbulent transfert coefficients of surface 849 !! fluxes according to Large & Yeager (2004). 850 !! 851 !! ** Method : I N E R T I A L D I S S I P A T I O N M E T H O D 852 !! Momentum, Latent and sensible heat exchange coefficients 853 !! Caution: this procedure should only be used in cases when air 854 !! temperature (T_air) and air specific humidity (q_air) are at a 855 !! different height to wind (dU). 856 !! 857 !! References : Large & Yeager, 2004 : ??? 677 !! fluxes according to Large & Yeager (2004) and Large & Yeager (2008) 678 !! If relevant (zt /= zu), adjust temperature and humidity from height zt to zu 679 !! 680 !! ** Method : Monin Obukhov Similarity Theory 681 !! + Large & Yeager (2004,2008) closure: CD_n10 = f(U_n10) 682 !! 683 !! ** References : Large & Yeager, 2004 / Large & Yeager, 2008 684 !! 685 !! ** Last update: Laurent Brodeau, June 2014: 686 !! - handles both cases zt=zu and zt/=zu 687 !! - optimized: less 2D arrays allocated and less operations 688 !! - better first guess of stability by checking air-sea difference of virtual temperature 689 !! rather than temperature difference only... 690 !! - added function "cd_neutral_10m" that uses the improved parametrization of 691 !! Large & Yeager 2008. Drag-coefficient reduction for Cyclone conditions! 692 !! - using code-wide physical constants defined into "phycst.mod" rather than redifining them 693 !! => 'vkarmn' and 'grav' 858 694 !!---------------------------------------------------------------------- 859 695 REAL(wp), INTENT(in ) :: zt ! height for T_zt and q_zt [m] … … 863 699 REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: q_sat ! sea surface specific humidity [kg/kg] 864 700 REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: q_zt ! specific air humidity [kg/kg] 865 REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: dU ! relative wind module |U(zu)-U(0)|[m/s]701 REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: dU ! relative wind module at zu [m/s] 866 702 REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: Cd ! transfer coefficient for momentum (tau) 867 703 REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: Ch ! transfer coefficient for sensible heat (Q_sens) … … 869 705 REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: T_zu ! air temp. shifted at zu [K] 870 706 REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: q_zu ! spec. hum. shifted at zu [kg/kg] 871 872 INTEGER :: j_itt 873 INTEGER , PARAMETER :: nb_itt = 5 ! number of itterations 874 REAL(wp), PARAMETER :: grav = 9.8 ! gravity 875 REAL(wp), PARAMETER :: kappa = 0.4 ! von Karman's constant 876 877 REAL(wp), DIMENSION(:,:), POINTER :: dU10 ! dU [m/s] 878 REAL(wp), DIMENSION(:,:), POINTER :: dT ! air/sea temperature differeence [K] 879 REAL(wp), DIMENSION(:,:), POINTER :: dq ! air/sea humidity difference [K] 880 REAL(wp), DIMENSION(:,:), POINTER :: Cd_n10 ! 10m neutral drag coefficient 707 ! 708 INTEGER :: j_itt 709 INTEGER , PARAMETER :: nb_itt = 5 ! number of itterations 710 LOGICAL :: l_zt_equal_zu = .FALSE. ! if q and t are given at different height than U 711 ! 712 REAL(wp), DIMENSION(:,:), POINTER :: U_zu ! relative wind at zu [m/s] 881 713 REAL(wp), DIMENSION(:,:), POINTER :: Ce_n10 ! 10m neutral latent coefficient 882 714 REAL(wp), DIMENSION(:,:), POINTER :: Ch_n10 ! 10m neutral sensible coefficient 883 715 REAL(wp), DIMENSION(:,:), POINTER :: sqrt_Cd_n10 ! root square of Cd_n10 884 716 REAL(wp), DIMENSION(:,:), POINTER :: sqrt_Cd ! root square of Cd 885 REAL(wp), DIMENSION(:,:), POINTER :: T_vpot ! virtual potential temperature [K]886 REAL(wp), DIMENSION(:,:), POINTER :: T_star ! turbulent scale of tem. fluct.887 REAL(wp), DIMENSION(:,:), POINTER :: q_star ! turbulent humidity of temp. fluct.888 REAL(wp), DIMENSION(:,:), POINTER :: U_star ! turb. scale of velocity fluct.889 REAL(wp), DIMENSION(:,:), POINTER :: L ! Monin-Obukov length [m]890 717 REAL(wp), DIMENSION(:,:), POINTER :: zeta_u ! stability parameter at height zu 891 718 REAL(wp), DIMENSION(:,:), POINTER :: zeta_t ! stability parameter at height zt 892 REAL(wp), DIMENSION(:,:), POINTER :: U_n10 ! neutral wind velocity at 10m [m] 893 REAL(wp), DIMENSION(:,:), POINTER :: xlogt, xct, zpsi_hu, zpsi_ht, zpsi_m 894 895 INTEGER , DIMENSION(:,:), POINTER :: stab ! 1st stability test integer 719 REAL(wp), DIMENSION(:,:), POINTER :: zpsi_h_u, zpsi_m_u 720 REAL(wp), DIMENSION(:,:), POINTER :: ztmp0, ztmp1, ztmp2 721 REAL(wp), DIMENSION(:,:), POINTER :: stab ! 1st stability test integer 896 722 !!---------------------------------------------------------------------- 897 ! 898 IF( nn_timing == 1 ) CALL timing_start('TURB_CORE_2Z') 899 ! 900 CALL wrk_alloc( jpi,jpj, dU10, dT, dq, Cd_n10, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd, L ) 901 CALL wrk_alloc( jpi,jpj, T_vpot, T_star, q_star, U_star, zeta_u, zeta_t, U_n10 ) 902 CALL wrk_alloc( jpi,jpj, xlogt, xct, zpsi_hu, zpsi_ht, zpsi_m ) 903 CALL wrk_alloc( jpi,jpj, stab ) ! interger 904 905 !! Initial air/sea differences 906 dU10 = max(0.5, dU) ! we don't want to fall under 0.5 m/s 907 dT = T_zt - sst 908 dq = q_zt - q_sat 909 910 !! Neutral Drag Coefficient : 911 stab = 0.5 + sign(0.5,dT) ! stab = 1 if dT > 0 -> STABLE 912 IF( ln_cdgw ) THEN 913 cdn_wave = cdn_wave - rsmall*(tmask(:,:,1)-1) 914 Cd_n10(:,:) = cdn_wave 723 724 IF( nn_timing == 1 ) CALL timing_start('turb_core_2z') 725 726 CALL wrk_alloc( jpi,jpj, U_zu, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd ) 727 CALL wrk_alloc( jpi,jpj, zeta_u, stab ) 728 CALL wrk_alloc( jpi,jpj, zpsi_h_u, zpsi_m_u, ztmp0, ztmp1, ztmp2 ) 729 730 l_zt_equal_zu = .FALSE. 731 IF( ABS(zu - zt) < 0.01 ) l_zt_equal_zu = .TRUE. ! testing "zu == zt" is risky with double precision 732 733 IF( .NOT. l_zt_equal_zu ) CALL wrk_alloc( jpi,jpj, zeta_t ) 734 735 U_zu = MAX( 0.5 , dU ) ! relative wind speed at zu (normally 10m), we don't want to fall under 0.5 m/s 736 737 !! First guess of stability: 738 ztmp0 = T_zt*(1. + 0.608*q_zt) - sst*(1. + 0.608*q_sat) ! air-sea difference of virtual pot. temp. at zt 739 stab = 0.5 + sign(0.5,ztmp0) ! stab = 1 if dTv > 0 => STABLE, 0 if unstable 740 741 !! Neutral coefficients at 10m: 742 IF( ln_cdgw ) THEN ! wave drag case 743 cdn_wave(:,:) = cdn_wave(:,:) + rsmall * ( 1._wp - tmask(:,:,1) ) 744 ztmp0 (:,:) = cdn_wave(:,:) 915 745 ELSE 916 Cd_n10 = 1.e-3*( 2.7/dU10 + 0.142 + dU10/13.09 )746 ztmp0 = cd_neutral_10m( U_zu ) 917 747 ENDIF 918 sqrt_Cd_n10 = sqrt(Cd_n10)748 sqrt_Cd_n10 = SQRT( ztmp0 ) 919 749 Ce_n10 = 1.e-3*( 34.6 * sqrt_Cd_n10 ) 920 750 Ch_n10 = 1.e-3*sqrt_Cd_n10*(18.*stab + 32.7*(1. - stab)) 921 751 922 752 !! Initializing transf. coeff. with their first guess neutral equivalents : 923 Cd = Cd_n10 ; Ce = Ce_n10 ; Ch = Ch_n10 ; sqrt_Cd = sqrt(Cd)924 925 !! Initializing z_u values with z_t values:926 T_zu = T_zt ;q_zu = q_zt753 Cd = ztmp0 ; Ce = Ce_n10 ; Ch = Ch_n10 ; sqrt_Cd = sqrt_Cd_n10 754 755 !! Initializing values at z_u with z_t values: 756 T_zu = T_zt ; q_zu = q_zt 927 757 928 758 !! * Now starting iteration loop 929 759 DO j_itt=1, nb_itt 930 dT = T_zu - sst ; dq = q_zu - q_sat ! Updating air/sea differences 931 T_vpot = T_zu*(1. + 0.608*q_zu) ! Updating virtual potential temperature at zu 932 U_star = sqrt_Cd*dU10 ! Updating turbulent scales : (L & Y eq. (7)) 933 T_star = Ch/sqrt_Cd*dT ! 934 q_star = Ce/sqrt_Cd*dq ! 935 !! 936 L = (U_star*U_star) & ! Estimate the Monin-Obukov length at height zu 937 & / (kappa*grav/T_vpot*(T_star*(1.+0.608*q_zu) + 0.608*T_zu*q_star)) 760 ! 761 ztmp1 = T_zu - sst ! Updating air/sea differences 762 ztmp2 = q_zu - q_sat 763 764 ! Updating turbulent scales : (L&Y 2004 eq. (7)) 765 ztmp1 = Ch/sqrt_Cd*ztmp1 ! theta* 766 ztmp2 = Ce/sqrt_Cd*ztmp2 ! q* 767 768 ztmp0 = T_zu*(1. + 0.608*q_zu) ! virtual potential temperature at zu 769 770 ! Estimate the inverse of Monin-Obukov length (1/L) at height zu: 771 ztmp0 = (vkarmn*grav/ztmp0*(ztmp1*(1.+0.608*q_zu) + 0.608*T_zu*ztmp2)) / (Cd*U_zu*U_zu) 772 ! ( Cd*U_zu*U_zu is U*^2 at zu) 773 938 774 !! Stability parameters : 939 zeta_u = zu/L ; zeta_u = sign( min(abs(zeta_u),10.0), zeta_u ) 940 zeta_t = zt/L ; zeta_t = sign( min(abs(zeta_t),10.0), zeta_t ) 941 zpsi_hu = psi_h(zeta_u) 942 zpsi_ht = psi_h(zeta_t) 943 zpsi_m = psi_m(zeta_u) 944 !! 945 !! Shifting the wind speed to 10m and neutral stability : (L & Y eq.(9a)) 946 ! U_n10 = dU10/(1. + sqrt_Cd_n10/kappa*(log(zu/10.) - psi_m(zeta_u))) 947 U_n10 = dU10/(1. + sqrt_Cd_n10/kappa*(log(zu/10.) - zpsi_m)) 948 !! 949 !! Shifting temperature and humidity at zu : (L & Y eq. (9b-9c)) 950 ! T_zu = T_zt - T_star/kappa*(log(zt/zu) + psi_h(zeta_u) - psi_h(zeta_t)) 951 T_zu = T_zt - T_star/kappa*(log(zt/zu) + zpsi_hu - zpsi_ht) 952 ! q_zu = q_zt - q_star/kappa*(log(zt/zu) + psi_h(zeta_u) - psi_h(zeta_t)) 953 q_zu = q_zt - q_star/kappa*(log(zt/zu) + zpsi_hu - zpsi_ht) 954 !! 955 !! q_zu cannot have a negative value : forcing 0 956 stab = 0.5 + sign(0.5,q_zu) ; q_zu = stab*q_zu 957 !! 958 IF( ln_cdgw ) THEN 959 sqrt_Cd=kappa/((kappa/sqrt_Cd_n10) - zpsi_m) ; Cd=sqrt_Cd*sqrt_Cd; 775 zeta_u = zu*ztmp0 ; zeta_u = sign( min(abs(zeta_u),10.0), zeta_u ) 776 zpsi_h_u = psi_h( zeta_u ) 777 zpsi_m_u = psi_m( zeta_u ) 778 779 !! Shifting temperature and humidity at zu (L&Y 2004 eq. (9b-9c)) 780 IF ( .NOT. l_zt_equal_zu ) THEN 781 zeta_t = zt*ztmp0 ; zeta_t = sign( min(abs(zeta_t),10.0), zeta_t ) 782 stab = LOG(zu/zt) - zpsi_h_u + psi_h(zeta_t) ! stab just used as temp array!!! 783 T_zu = T_zt + ztmp1/vkarmn*stab ! ztmp1 is still theta* 784 q_zu = q_zt + ztmp2/vkarmn*stab ! ztmp2 is still q* 785 q_zu = max(0., q_zu) 786 END IF 787 788 IF( ln_cdgw ) THEN ! surface wave case 789 sqrt_Cd = vkarmn / ( vkarmn / sqrt_Cd_n10 - zpsi_m_u ) 790 Cd = sqrt_Cd * sqrt_Cd 960 791 ELSE 961 !! Updating the neutral 10m transfer coefficients : 962 Cd_n10 = 1.e-3 * (2.7/U_n10 + 0.142 + U_n10/13.09) ! L & Y eq. (6a) 963 sqrt_Cd_n10 = sqrt(Cd_n10) 964 Ce_n10 = 1.e-3 * (34.6 * sqrt_Cd_n10) ! L & Y eq. (6b) 965 stab = 0.5 + sign(0.5,zeta_u) 966 Ch_n10 = 1.e-3*sqrt_Cd_n10*(18.*stab + 32.7*(1.-stab)) ! L & Y eq. (6c-6d) 967 !! 968 !! 969 !! Shifting the neutral 10m transfer coefficients to (zu,zeta_u) : 970 xct = 1. + sqrt_Cd_n10/kappa*(log(zu/10.) - zpsi_m) ! L & Y eq. (10a) 971 Cd = Cd_n10/(xct*xct) ; sqrt_Cd = sqrt(Cd) 792 ! Update neutral wind speed at 10m and neutral Cd at 10m (L&Y 2004 eq. 9a)... 793 ! In very rare low-wind conditions, the old way of estimating the 794 ! neutral wind speed at 10m leads to a negative value that causes the code 795 ! to crash. To prevent this a threshold of 0.25m/s is imposed. 796 ztmp0 = MAX( 0.25 , U_zu/(1. + sqrt_Cd_n10/vkarmn*(LOG(zu/10.) - zpsi_m_u)) ) ! U_n10 797 ztmp0 = cd_neutral_10m(ztmp0) ! Cd_n10 798 sqrt_Cd_n10 = sqrt(ztmp0) 799 800 Ce_n10 = 1.e-3 * (34.6 * sqrt_Cd_n10) ! L&Y 2004 eq. (6b) 801 stab = 0.5 + sign(0.5,zeta_u) ! update stability 802 Ch_n10 = 1.e-3*sqrt_Cd_n10*(18.*stab + 32.7*(1. - stab)) ! L&Y 2004 eq. (6c-6d) 803 804 !! Update of transfer coefficients: 805 ztmp1 = 1. + sqrt_Cd_n10/vkarmn*(LOG(zu/10.) - zpsi_m_u) ! L&Y 2004 eq. (10a) 806 Cd = ztmp0 / ( ztmp1*ztmp1 ) 807 sqrt_Cd = SQRT( Cd ) 972 808 ENDIF 973 !! 974 xlogt = log(zu/10.) - zpsi_hu 975 !! 976 xct = 1. + Ch_n10*xlogt/kappa/sqrt_Cd_n10 ! L & Y eq. (10b) 977 Ch = Ch_n10*sqrt_Cd/sqrt_Cd_n10/xct 978 !! 979 xct = 1. + Ce_n10*xlogt/kappa/sqrt_Cd_n10 ! L & Y eq. (10c) 980 Ce = Ce_n10*sqrt_Cd/sqrt_Cd_n10/xct 981 !! 982 !! 809 ! 810 ztmp0 = (LOG(zu/10.) - zpsi_h_u) / vkarmn / sqrt_Cd_n10 811 ztmp2 = sqrt_Cd / sqrt_Cd_n10 812 ztmp1 = 1. + Ch_n10*ztmp0 813 Ch = Ch_n10*ztmp2 / ztmp1 ! L&Y 2004 eq. (10b) 814 ! 815 ztmp1 = 1. + Ce_n10*ztmp0 816 Ce = Ce_n10*ztmp2 / ztmp1 ! L&Y 2004 eq. (10c) 817 ! 983 818 END DO 984 !! 985 CALL wrk_dealloc( jpi,jpj, dU10, dT, dq, Cd_n10, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd, L ) 986 CALL wrk_dealloc( jpi,jpj, T_vpot, T_star, q_star, U_star, zeta_u, zeta_t, U_n10 ) 987 CALL wrk_dealloc( jpi,jpj, xlogt, xct, zpsi_hu, zpsi_ht, zpsi_m ) 988 CALL wrk_dealloc( jpi,jpj, stab ) ! interger 989 ! 990 IF( nn_timing == 1 ) CALL timing_stop('TURB_CORE_2Z') 991 ! 992 END SUBROUTINE TURB_CORE_2Z 993 994 995 FUNCTION psi_m(zta) !! Psis, L & Y eq. (8c), (8d), (8e) 819 820 CALL wrk_dealloc( jpi,jpj, U_zu, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd ) 821 CALL wrk_dealloc( jpi,jpj, zeta_u, stab ) 822 CALL wrk_dealloc( jpi,jpj, zpsi_h_u, zpsi_m_u, ztmp0, ztmp1, ztmp2 ) 823 824 IF( .NOT. l_zt_equal_zu ) CALL wrk_dealloc( jpi,jpj, zeta_t ) 825 826 IF( nn_timing == 1 ) CALL timing_stop('turb_core_2z') 827 ! 828 END SUBROUTINE turb_core_2z 829 830 831 FUNCTION cd_neutral_10m( zw10 ) 832 !!---------------------------------------------------------------------- 833 !! Estimate of the neutral drag coefficient at 10m as a function 834 !! of neutral wind speed at 10m 835 !! 836 !! Origin: Large & Yeager 2008 eq.(11a) and eq.(11b) 837 !! 838 !! Author: L. Brodeau, june 2014 839 !!---------------------------------------------------------------------- 840 REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: zw10 ! scalar wind speed at 10m (m/s) 841 REAL(wp), DIMENSION(jpi,jpj) :: cd_neutral_10m 842 ! 843 REAL(wp), DIMENSION(:,:), POINTER :: rgt33 844 !!---------------------------------------------------------------------- 845 ! 846 CALL wrk_alloc( jpi,jpj, rgt33 ) 847 ! 848 !! When wind speed > 33 m/s => Cyclone conditions => special treatment 849 rgt33 = 0.5_wp + SIGN( 0.5_wp, (zw10 - 33._wp) ) ! If zw10 < 33. => 0, else => 1 850 cd_neutral_10m = 1.e-3 * ( & 851 & (rgt33 + 1._wp)*( 2.7_wp/zw10 + 0.142_wp + zw10/13.09_wp - 3.14807E-10*zw10**6) & ! zw10< 33. 852 & + rgt33 * 2.34 ) ! zw10 >= 33. 853 ! 854 CALL wrk_dealloc( jpi,jpj, rgt33) 855 ! 856 END FUNCTION cd_neutral_10m 857 858 859 FUNCTION psi_m(pta) !! Psis, L&Y 2004 eq. (8c), (8d), (8e) 996 860 !------------------------------------------------------------------------------- 997 REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: zta 998 999 REAL(wp), PARAMETER :: pi = 3.141592653589793_wp 861 ! universal profile stability function for momentum 862 !------------------------------------------------------------------------------- 863 REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pta 864 ! 1000 865 REAL(wp), DIMENSION(jpi,jpj) :: psi_m 1001 866 REAL(wp), DIMENSION(:,:), POINTER :: X2, X, stabit 1002 867 !------------------------------------------------------------------------------- 1003 868 ! 1004 869 CALL wrk_alloc( jpi,jpj, X2, X, stabit ) 1005 1006 X2 = sqrt(abs(1. - 16.*zta)) ; X2 = max(X2 , 1.0) ; X = sqrt(X2)1007 stabit = 0.5 + sign(0.5,zta)1008 psi_m = -5.* zta*stabit & ! Stable1009 & + (1. - stabit)*(2 *log((1. + X)/2) + log((1. + X2)/2) - 2*atan(X) + pi/2) ! Unstable1010 870 ! 871 X2 = SQRT( ABS( 1. - 16.*pta ) ) ; X2 = MAX( X2 , 1. ) ; X = SQRT( X2 ) 872 stabit = 0.5 + SIGN( 0.5 , pta ) 873 psi_m = -5.*pta*stabit & ! Stable 874 & + (1. - stabit)*(2.*LOG((1. + X)*0.5) + LOG((1. + X2)*0.5) - 2.*ATAN(X) + rpi*0.5) ! Unstable 875 ! 1011 876 CALL wrk_dealloc( jpi,jpj, X2, X, stabit ) 1012 877 ! 1013 1014 1015 1016 FUNCTION psi_h( zta ) !! Psis, L & Yeq. (8c), (8d), (8e)878 END FUNCTION psi_m 879 880 881 FUNCTION psi_h( pta ) !! Psis, L&Y 2004 eq. (8c), (8d), (8e) 1017 882 !------------------------------------------------------------------------------- 1018 REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: zta 883 ! universal profile stability function for temperature and humidity 884 !------------------------------------------------------------------------------- 885 REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pta 1019 886 ! 1020 887 REAL(wp), DIMENSION(jpi,jpj) :: psi_h 1021 REAL(wp), DIMENSION(:,:), POINTER :: X2, X, stabit888 REAL(wp), DIMENSION(:,:), POINTER :: X2, X, stabit 1022 889 !------------------------------------------------------------------------------- 1023 890 ! 1024 891 CALL wrk_alloc( jpi,jpj, X2, X, stabit ) 1025 892 ! 1026 X2 = sqrt(abs(1. - 16.*zta)) ; X2 = max(X2 , 1.) ; X = sqrt(X2)1027 stabit = 0.5 + sign(0.5,zta)1028 psi_h = -5.* zta*stabit & ! Stable1029 & + (1. - stabit)*(2.* log( (1. + X2)/2. ))! Unstable1030 893 X2 = SQRT( ABS( 1. - 16.*pta ) ) ; X2 = MAX( X2 , 1. ) ; X = SQRT( X2 ) 894 stabit = 0.5 + SIGN( 0.5 , pta ) 895 psi_h = -5.*pta*stabit & ! Stable 896 & + (1. - stabit)*(2.*LOG( (1. + X2)*0.5 )) ! Unstable 897 ! 1031 898 CALL wrk_dealloc( jpi,jpj, X2, X, stabit ) 1032 899 ! 1033 1034 900 END FUNCTION psi_h 901 1035 902 !!====================================================================== 1036 903 END MODULE sbcblk_core
Note: See TracChangeset
for help on using the changeset viewer.
