Changeset 12615 for NEMO/trunk/src/OCE/SBC
- Timestamp:
- 2020-03-26T16:18:49+01:00 (4 years ago)
- Location:
- NEMO/trunk/src/OCE/SBC
- Files:
-
- 6 edited
Legend:
- Unmodified
- Added
- Removed
-
NEMO/trunk/src/OCE/SBC/sbcblk.F90
r12489 r12615 639 639 END IF 640 640 641 !! CALL iom_put( "Cd_oce", zcd_oce) ! output value of pure ocean-atm. transfer coef.642 !! CALL iom_put( "Ch_oce", zch_oce) ! output value of pure ocean-atm. transfer coef.643 644 IF( ABS(rn_zu - rn_zqt) < 0.1_wp ) THEN645 !! If zu == zt, then ensuring once for all that:646 t_zu(:,:) = ztpot(:,:)647 q_zu(:,:) = zqair(:,:)648 ENDIF649 650 651 641 ! Turbulent fluxes over ocean => BULK_FORMULA @ sbcblk_phy.F90 652 642 ! ------------------------------------------------------------- … … 663 653 ELSE !== BLK formulation ==! turbulent fluxes computation 664 654 CALL BULK_FORMULA( rn_zu, ptsk(:,:), pssq(:,:), t_zu(:,:), q_zu(:,:), & 665 & zcd_oce(:,:), zch_oce(:,:), zce_oce(:,:), &666 & wndm(:,:), zU_zu(:,:), pslp(:,:), &667 & taum(:,:), psen(:,:), zqla(:,:), &668 & pEvap=pevp(:,:), prhoa=rhoa(:,:) )655 & zcd_oce(:,:), zch_oce(:,:), zce_oce(:,:), & 656 & wndm(:,:), zU_zu(:,:), pslp(:,:), & 657 & taum(:,:), psen(:,:), zqla(:,:), & 658 & pEvap=pevp(:,:), prhoa=rhoa(:,:), pfact_evap=rn_efac ) 669 659 670 660 zqla(:,:) = zqla(:,:) * tmask(:,:,1) … … 1046 1036 evap_ice (:,:,:) = rn_efac * qla_ice (:,:,:) * z1_rLsub ! sublimation 1047 1037 devap_ice(:,:,:) = rn_efac * dqla_ice(:,:,:) * z1_rLsub ! d(sublimation)/dT 1048 zevap (:,:) = rn_efac * ( emp(:,:) + tprecip(:,:) ) ! evaporation over ocean 1038 zevap (:,:) = rn_efac * ( emp(:,:) + tprecip(:,:) ) ! evaporation over ocean !LB: should we remove rn_efac here??? 1049 1039 1050 1040 ! --- evaporation minus precipitation --- ! -
NEMO/trunk/src/OCE/SBC/sbcblk_algo_coare3p0.F90
r12377 r12615 194 194 IF( kt == nit000 ) CALL SBCBLK_ALGO_COARE3P0_INIT(l_use_cs, l_use_wl) 195 195 196 l_zt_equal_zu = .FALSE. 197 IF( ABS(zu - zt) < 0.01_wp ) l_zt_equal_zu = .TRUE. ! testing "zu == zt" is risky with double precision 196 l_zt_equal_zu = ( ABS(zu - zt) < 0.01_wp ) ! testing "zu == zt" is risky with double precision 198 197 IF( .NOT. l_zt_equal_zu ) ALLOCATE( zeta_t(jpi,jpj) ) 199 198 … … 396 395 ! 397 396 DO_2D_11_11 398 399 400 401 402 403 404 405 406 407 408 397 ! 398 zw = pwnd(ji,jj) ! wind speed 399 ! 400 ! Charnock's constant, increases with the wind : 401 zgt10 = 0.5 + SIGN(0.5_wp,(zw - 10)) ! If zw<10. --> 0, else --> 1 402 zgt18 = 0.5 + SIGN(0.5_wp,(zw - 18.)) ! If zw<18. --> 0, else --> 1 403 ! 404 alfa_charn_3p0(ji,jj) = (1. - zgt10)*0.011 & ! wind is lower than 10 m/s 405 & + zgt10*((1. - zgt18)*(0.011 + (0.018 - 0.011) & 406 & *(zw - 10.)/(18. - 10.)) + zgt18*( 0.018 ) ) ! Hare et al. (1999) 407 ! 409 408 END_2D 410 409 ! … … 432 431 ! 433 432 DO_2D_11_11 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 433 ! 434 zta = pzeta(ji,jj) 435 ! 436 zphi_m = ABS(1. - 15.*zta)**.25 !!Kansas unstable 437 ! 438 zpsi_k = 2.*LOG((1. + zphi_m)/2.) + LOG((1. + zphi_m*zphi_m)/2.) & 439 & - 2.*ATAN(zphi_m) + 0.5*rpi 440 ! 441 zphi_c = ABS(1. - 10.15*zta)**.3333 !!Convective 442 ! 443 zpsi_c = 1.5*LOG((1. + zphi_c + zphi_c*zphi_c)/3.) & 444 & - 1.7320508*ATAN((1. + 2.*zphi_c)/1.7320508) + 1.813799447 445 ! 446 zf = zta*zta 447 zf = zf/(1. + zf) 448 zc = MIN(50._wp, 0.35_wp*zta) 449 zstab = 0.5 + SIGN(0.5_wp, zta) 450 ! 451 psi_m_coare(ji,jj) = (1. - zstab) * ( (1. - zf)*zpsi_k + zf*zpsi_c ) & ! (zta < 0) 452 & - zstab * ( 1. + 1.*zta & ! (zta > 0) 453 & + 0.6667*(zta - 14.28)/EXP(zc) + 8.525 ) ! " 454 ! 456 455 END_2D 457 456 ! … … 483 482 ! 484 483 DO_2D_11_11 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 484 ! 485 zta = pzeta(ji,jj) 486 ! 487 zphi_h = (ABS(1. - 15.*zta))**.5 !! Kansas unstable (zphi_h = zphi_m**2 when unstable, zphi_m when stable) 488 ! 489 zpsi_k = 2.*LOG((1. + zphi_h)/2.) 490 ! 491 zphi_c = (ABS(1. - 34.15*zta))**.3333 !! Convective 492 ! 493 zpsi_c = 1.5*LOG((1. + zphi_c + zphi_c*zphi_c)/3.) & 494 & -1.7320508*ATAN((1. + 2.*zphi_c)/1.7320508) + 1.813799447 495 ! 496 zf = zta*zta 497 zf = zf/(1. + zf) 498 zc = MIN(50._wp,0.35_wp*zta) 499 zstab = 0.5 + SIGN(0.5_wp, zta) 500 ! 501 psi_h_coare(ji,jj) = (1. - zstab) * ( (1. - zf)*zpsi_k + zf*zpsi_c ) & 502 & - zstab * ( (ABS(1. + 2.*zta/3.))**1.5 & 503 & + .6667*(zta - 14.28)/EXP(zc) + 8.525 ) 504 ! 506 505 END_2D 507 506 ! -
NEMO/trunk/src/OCE/SBC/sbcblk_algo_coare3p6.F90
r12377 r12615 194 194 IF( kt == nit000 ) CALL SBCBLK_ALGO_COARE3P6_INIT(l_use_cs, l_use_wl) 195 195 196 l_zt_equal_zu = .FALSE. 197 IF( ABS(zu - zt) < 0.01_wp ) l_zt_equal_zu = .TRUE. ! testing "zu == zt" is risky with double precision 196 l_zt_equal_zu = ( ABS(zu - zt) < 0.01_wp ) ! testing "zu == zt" is risky with double precision 198 197 IF( .NOT. l_zt_equal_zu ) ALLOCATE( zeta_t(jpi,jpj) ) 199 198 … … 432 431 ! 433 432 DO_2D_11_11 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 433 ! 434 zta = pzeta(ji,jj) 435 ! 436 zphi_m = ABS(1. - 15.*zta)**.25 !!Kansas unstable 437 ! 438 zpsi_k = 2.*LOG((1. + zphi_m)/2.) + LOG((1. + zphi_m*zphi_m)/2.) & 439 & - 2.*ATAN(zphi_m) + 0.5*rpi 440 ! 441 zphi_c = ABS(1. - 10.15*zta)**.3333 !!Convective 442 ! 443 zpsi_c = 1.5*LOG((1. + zphi_c + zphi_c*zphi_c)/3.) & 444 & - 1.7320508*ATAN((1. + 2.*zphi_c)/1.7320508) + 1.813799447 445 ! 446 zf = zta*zta 447 zf = zf/(1. + zf) 448 zc = MIN(50._wp, 0.35_wp*zta) 449 zstab = 0.5 + SIGN(0.5_wp, zta) 450 ! 451 psi_m_coare(ji,jj) = (1. - zstab) * ( (1. - zf)*zpsi_k + zf*zpsi_c ) & ! (zta < 0) 452 & - zstab * ( 1. + 1.*zta & ! (zta > 0) 453 & + 0.6667*(zta - 14.28)/EXP(zc) + 8.525 ) ! " 454 ! 456 455 END_2D 457 456 ! … … 483 482 ! 484 483 DO_2D_11_11 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 484 ! 485 zta = pzeta(ji,jj) 486 ! 487 zphi_h = (ABS(1. - 15.*zta))**.5 !! Kansas unstable (zphi_h = zphi_m**2 when unstable, zphi_m when stable) 488 ! 489 zpsi_k = 2.*LOG((1. + zphi_h)/2.) 490 ! 491 zphi_c = (ABS(1. - 34.15*zta))**.3333 !! Convective 492 ! 493 zpsi_c = 1.5*LOG((1. + zphi_c + zphi_c*zphi_c)/3.) & 494 & -1.7320508*ATAN((1. + 2.*zphi_c)/1.7320508) + 1.813799447 495 ! 496 zf = zta*zta 497 zf = zf/(1. + zf) 498 zc = MIN(50._wp,0.35_wp*zta) 499 zstab = 0.5 + SIGN(0.5_wp, zta) 500 ! 501 psi_h_coare(ji,jj) = (1. - zstab) * ( (1. - zf)*zpsi_k + zf*zpsi_c ) & 502 & - zstab * ( (ABS(1. + 2.*zta/3.))**1.5 & 503 & + .6667*(zta - 14.28)/EXP(zc) + 8.525 ) 504 ! 506 505 END_2D 507 506 ! -
NEMO/trunk/src/OCE/SBC/sbcblk_algo_ecmwf.F90
r12377 r12615 98 98 & Qsw, rad_lw, slp, pdT_cs, & ! optionals for cool-skin (and warm-layer) 99 99 & pdT_wl, pHz_wl ) ! optionals for warm-layer only 100 !!---------------------------------------------------------------------- 100 !!---------------------------------------------------------------------------------- 101 101 !! *** ROUTINE turb_ecmwf *** 102 102 !! … … 184 184 LOGICAL :: l_zt_equal_zu = .FALSE. ! if q and t are given at same height as U 185 185 ! 186 REAL(wp), DIMENSION(jpi,jpj) :: 187 REAL(wp), DIMENSION(jpi,jpj) :: dt_zu, dq_zu 188 REAL(wp), DIMENSION(jpi,jpj) :: znu_a !: Nu_air, Viscosity of air186 REAL(wp), DIMENSION(jpi,jpj) :: u_star, t_star, q_star 187 REAL(wp), DIMENSION(jpi,jpj) :: dt_zu, dq_zu 188 REAL(wp), DIMENSION(jpi,jpj) :: znu_a !: Nu_air, Viscosity of air 189 189 REAL(wp), DIMENSION(jpi,jpj) :: Linv !: 1/L (inverse of Monin Obukhov length... 190 190 REAL(wp), DIMENSION(jpi,jpj) :: z0, z0t, z0q … … 196 196 CHARACTER(len=40), PARAMETER :: crtnm = 'turb_ecmwf@sbcblk_algo_ecmwf.F90' 197 197 !!---------------------------------------------------------------------------------- 198 199 198 IF( kt == nit000 ) CALL SBCBLK_ALGO_ECMWF_INIT(l_use_cs, l_use_wl) 200 199 201 l_zt_equal_zu = .FALSE. 202 IF( ABS(zu - zt) < 0.01_wp ) l_zt_equal_zu = .TRUE. ! testing "zu == zt" is risky with double precision 200 l_zt_equal_zu = ( ABS(zu - zt) < 0.01_wp ) ! testing "zu == zt" is risky with double precision 203 201 204 202 !! Initializations for cool skin and warm layer: … … 413 411 !!---------------------------------------------------------------------------------- 414 412 DO_2D_11_11 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 413 ! 414 zzeta = MIN( pzeta(ji,jj) , 5._wp ) !! Very stable conditions (L positif and big!): 415 ! 416 ! Unstable (Paulson 1970): 417 ! eq.3.20, Chap.3, p.33, IFS doc - Cy31r1 418 zx = SQRT(ABS(1._wp - 16._wp*zzeta)) 419 ztmp = 1._wp + SQRT(zx) 420 ztmp = ztmp*ztmp 421 psi_unst = LOG( 0.125_wp*ztmp*(1._wp + zx) ) & 422 & -2._wp*ATAN( SQRT(zx) ) + 0.5_wp*rpi 423 ! 424 ! Unstable: 425 ! eq.3.22, Chap.3, p.33, IFS doc - Cy31r1 426 psi_stab = -2._wp/3._wp*(zzeta - 5._wp/0.35_wp)*EXP(-0.35_wp*zzeta) & 427 & - zzeta - 2._wp/3._wp*5._wp/0.35_wp 428 ! 429 ! Combining: 430 stab = 0.5_wp + SIGN(0.5_wp, zzeta) ! zzeta > 0 => stab = 1 431 ! 432 psi_m_ecmwf(ji,jj) = (1._wp - stab) * psi_unst & ! (zzeta < 0) Unstable 433 & + stab * psi_stab ! (zzeta > 0) Stable 434 ! 437 435 END_2D 438 436 END FUNCTION psi_m_ecmwf … … 458 456 ! 459 457 DO_2D_11_11 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 458 ! 459 zzeta = MIN(pzeta(ji,jj) , 5._wp) ! Very stable conditions (L positif and big!): 460 ! 461 zx = ABS(1._wp - 16._wp*zzeta)**.25 ! this is actually (1/phi_m)**2 !!! 462 ! ! eq.3.19, Chap.3, p.33, IFS doc - Cy31r1 463 ! Unstable (Paulson 1970) : 464 psi_unst = 2._wp*LOG(0.5_wp*(1._wp + zx*zx)) ! eq.3.20, Chap.3, p.33, IFS doc - Cy31r1 465 ! 466 ! Stable: 467 psi_stab = -2._wp/3._wp*(zzeta - 5._wp/0.35_wp)*EXP(-0.35_wp*zzeta) & ! eq.3.22, Chap.3, p.33, IFS doc - Cy31r1 468 & - ABS(1._wp + 2._wp/3._wp*zzeta)**1.5_wp - 2._wp/3._wp*5._wp/0.35_wp + 1._wp 469 ! LB: added ABS() to avoid NaN values when unstable, which contaminates the unstable solution... 470 ! 471 stab = 0.5_wp + SIGN(0.5_wp, zzeta) ! zzeta > 0 => stab = 1 472 ! 473 ! 474 psi_h_ecmwf(ji,jj) = (1._wp - stab) * psi_unst & ! (zzeta < 0) Unstable 475 & + stab * psi_stab ! (zzeta > 0) Stable 476 ! 479 477 END_2D 480 478 END FUNCTION psi_h_ecmwf -
NEMO/trunk/src/OCE/SBC/sbcblk_algo_ncar.F90
r12377 r12615 112 112 REAL(wp), DIMENSION(jpi,jpj) :: stab ! stability test integer 113 113 !!---------------------------------------------------------------------------------- 114 ! 115 l_zt_equal_zu = .FALSE. 116 IF( ABS(zu - zt) < 0.01_wp ) l_zt_equal_zu = .TRUE. ! testing "zu == zt" is risky with double precision 114 l_zt_equal_zu = ( ABS(zu - zt) < 0.01_wp ) ! testing "zu == zt" is risky with double precision 117 115 118 116 U_blk = MAX( 0.5_wp , U_zu ) ! relative wind speed at zu (normally 10m), we don't want to fall under 0.5 m/s … … 143 141 ENDIF 144 142 145 !! Initializing values at z_u with z_t values: 146 t_zu = t_zt ; q_zu = q_zt 143 !! First guess of temperature and humidity at height zu: 144 t_zu = MAX( t_zt , 180._wp ) ! who knows what's given on masked-continental regions... 145 q_zu = MAX( q_zt , 1.e-6_wp ) ! " 147 146 148 147 !! ITERATION BLOCK -
NEMO/trunk/src/OCE/SBC/sbcblk_phy.F90
r12377 r12615 520 520 zCe = zz0*pqst(ji,jj)/zdq 521 521 522 CALL BULK_FORMULA ( pzu, pTs(ji,jj), pqs(ji,jj), pTa(ji,jj), pqa(ji,jj), &523 & zCd, zCh, zCe,&524 & pwnd(ji,jj), pUb(ji,jj), pslp(ji,jj),&525 & pTau(ji,jj), zQsen, zQlat )526 522 CALL BULK_FORMULA_SCLR( pzu, pTs(ji,jj), pqs(ji,jj), pTa(ji,jj), pqa(ji,jj), & 523 & zCd, zCh, zCe, & 524 & pwnd(ji,jj), pUb(ji,jj), pslp(ji,jj), & 525 & pTau(ji,jj), zQsen, zQlat ) 526 527 527 zTs2 = pTs(ji,jj)*pTs(ji,jj) 528 528 zQlw = emiss_w*(prlw(ji,jj) - stefan*zTs2*zTs2) ! Net longwave flux … … 535 535 536 536 537 SUBROUTINE BULK_FORMULA_VCTR( pzu, pTs, pqs, pTa, pqa, & 538 & pCd, pCh, pCe, & 539 & pwnd, pUb, pslp, & 540 & pTau, pQsen, pQlat, pEvap, prhoa ) 537 SUBROUTINE BULK_FORMULA_SCLR( pzu, pTs, pqs, pTa, pqa, & 538 & pCd, pCh, pCe, & 539 & pwnd, pUb, pslp, & 540 & pTau, pQsen, pQlat, & 541 & pEvap, prhoa, pfact_evap ) 542 !!---------------------------------------------------------------------------------- 543 REAL(wp), INTENT(in) :: pzu ! height above the sea-level where all this takes place (normally 10m) 544 REAL(wp), INTENT(in) :: pTs ! water temperature at the air-sea interface [K] 545 REAL(wp), INTENT(in) :: pqs ! satur. spec. hum. at T=pTs [kg/kg] 546 REAL(wp), INTENT(in) :: pTa ! potential air temperature at z=pzu [K] 547 REAL(wp), INTENT(in) :: pqa ! specific humidity at z=pzu [kg/kg] 548 REAL(wp), INTENT(in) :: pCd 549 REAL(wp), INTENT(in) :: pCh 550 REAL(wp), INTENT(in) :: pCe 551 REAL(wp), INTENT(in) :: pwnd ! wind speed module at z=pzu [m/s] 552 REAL(wp), INTENT(in) :: pUb ! bulk wind speed at z=pzu (inc. pot. effect of gustiness etc) [m/s] 553 REAL(wp), INTENT(in) :: pslp ! sea-level atmospheric pressure [Pa] 554 !! 555 REAL(wp), INTENT(out) :: pTau ! module of the wind stress [N/m^2] 556 REAL(wp), INTENT(out) :: pQsen ! [W/m^2] 557 REAL(wp), INTENT(out) :: pQlat ! [W/m^2] 558 !! 559 REAL(wp), INTENT(out), OPTIONAL :: pEvap ! Evaporation [kg/m^2/s] 560 REAL(wp), INTENT(out), OPTIONAL :: prhoa ! Air density at z=pzu [kg/m^3] 561 REAL(wp), INTENT(in) , OPTIONAL :: pfact_evap ! ABOMINATION: corrective factor for evaporation (doing this against my will! /laurent) 562 !! 563 REAL(wp) :: ztaa, zgamma, zrho, zUrho, zevap, zfact_evap 564 INTEGER :: jq 565 !!---------------------------------------------------------------------------------- 566 zfact_evap = 1._wp 567 IF( PRESENT(pfact_evap) ) zfact_evap = pfact_evap 568 569 !! Need ztaa, absolute temperature at pzu (formula to estimate rho_air needs absolute temperature, not the potential temperature "pTa") 570 ztaa = pTa ! first guess... 571 DO jq = 1, 4 572 zgamma = gamma_moist( 0.5*(ztaa+pTs) , pqa ) !LOLO: why not "0.5*(pqs+pqa)" rather then "pqa" ??? 573 ztaa = pTa - zgamma*pzu ! Absolute temp. is slightly colder... 574 END DO 575 zrho = rho_air(ztaa, pqa, pslp) 576 zrho = rho_air(ztaa, pqa, pslp-zrho*grav*pzu) ! taking into account that we are pzu m above the sea level where SLP is given! 577 578 zUrho = pUb*MAX(zrho, 1._wp) ! rho*U10 579 580 pTau = zUrho * pCd * pwnd ! Wind stress module 581 582 zevap = zUrho * pCe * (pqa - pqs) 583 pQsen = zUrho * pCh * (pTa - pTs) * cp_air(pqa) 584 pQlat = L_vap(pTs) * zevap 585 586 IF( PRESENT(pEvap) ) pEvap = - zfact_evap * zevap 587 IF( PRESENT(prhoa) ) prhoa = zrho 588 589 END SUBROUTINE BULK_FORMULA_SCLR 590 591 SUBROUTINE BULK_FORMULA_VCTR( pzu, pTs, pqs, pTa, pqa, & 592 & pCd, pCh, pCe, & 593 & pwnd, pUb, pslp, & 594 & pTau, pQsen, pQlat, & 595 & pEvap, prhoa, pfact_evap ) 541 596 !!---------------------------------------------------------------------------------- 542 597 REAL(wp), INTENT(in) :: pzu ! height above the sea-level where all this takes place (normally 10m) … … 558 613 REAL(wp), DIMENSION(jpi,jpj), INTENT(out), OPTIONAL :: pEvap ! Evaporation [kg/m^2/s] 559 614 REAL(wp), DIMENSION(jpi,jpj), INTENT(out), OPTIONAL :: prhoa ! Air density at z=pzu [kg/m^3] 560 !! 561 REAL(wp) :: ztaa, zgamma, zrho, zUrho, zevap 562 INTEGER :: ji, jj, jq ! dummy loop indices 563 !!---------------------------------------------------------------------------------- 564 DO_2D_11_11 565 566 !! Need ztaa, absolute temperature at pzu (formula to estimate rho_air needs absolute temperature, not the potential temperature "pTa") 567 ztaa = pTa(ji,jj) ! first guess... 568 DO jq = 1, 4 569 zgamma = gamma_moist( 0.5*(ztaa+pTs(ji,jj)) , pqa(ji,jj) ) 570 ztaa = pTa(ji,jj) - zgamma*pzu ! Absolute temp. is slightly colder... 571 END DO 572 zrho = rho_air(ztaa, pqa(ji,jj), pslp(ji,jj)) 573 zrho = rho_air(ztaa, pqa(ji,jj), pslp(ji,jj)-zrho*grav*pzu) ! taking into account that we are pzu m above the sea level where SLP is given! 574 575 zUrho = pUb(ji,jj)*MAX(zrho, 1._wp) ! rho*U10 576 577 pTau(ji,jj) = zUrho * pCd(ji,jj) * pwnd(ji,jj) ! Wind stress module 578 579 zevap = zUrho * pCe(ji,jj) * (pqa(ji,jj) - pqs(ji,jj)) 580 pQsen(ji,jj) = zUrho * pCh(ji,jj) * (pTa(ji,jj) - pTs(ji,jj)) * cp_air(pqa(ji,jj)) 581 pQlat(ji,jj) = L_vap(pTs(ji,jj)) * zevap 582 583 IF( PRESENT(pEvap) ) pEvap(ji,jj) = - zevap 615 REAL(wp), INTENT(in) , OPTIONAL :: pfact_evap ! ABOMINATION: corrective factor for evaporation (doing this against my will! /laurent) 616 !! 617 REAL(wp) :: ztaa, zgamma, zrho, zUrho, zevap, zfact_evap 618 INTEGER :: ji, jj 619 !!---------------------------------------------------------------------------------- 620 zfact_evap = 1._wp 621 IF( PRESENT(pfact_evap) ) zfact_evap = pfact_evap 622 623 DO_2D_11_11 624 625 CALL BULK_FORMULA_SCLR( pzu, pTs(ji,jj), pqs(ji,jj), pTa(ji,jj), pqa(ji,jj), & 626 & pCd(ji,jj), pCh(ji,jj), pCe(ji,jj), & 627 & pwnd(ji,jj), pUb(ji,jj), pslp(ji,jj), & 628 & pTau(ji,jj), pQsen(ji,jj), pQlat(ji,jj), & 629 & pEvap=zevap, prhoa=zrho, pfact_evap=zfact_evap ) 630 631 IF( PRESENT(pEvap) ) pEvap(ji,jj) = zevap 584 632 IF( PRESENT(prhoa) ) prhoa(ji,jj) = zrho 585 633 586 634 END_2D 587 635 END SUBROUTINE BULK_FORMULA_VCTR 588 589 590 SUBROUTINE BULK_FORMULA_SCLR( pzu, pTs, pqs, pTa, pqa, &591 & pCd, pCh, pCe, &592 & pwnd, pUb, pslp, &593 & pTau, pQsen, pQlat, pEvap, prhoa )594 !!----------------------------------------------------------------------------------595 REAL(wp), INTENT(in) :: pzu ! height above the sea-level where all this takes place (normally 10m)596 REAL(wp), INTENT(in) :: pTs ! water temperature at the air-sea interface [K]597 REAL(wp), INTENT(in) :: pqs ! satur. spec. hum. at T=pTs [kg/kg]598 REAL(wp), INTENT(in) :: pTa ! potential air temperature at z=pzu [K]599 REAL(wp), INTENT(in) :: pqa ! specific humidity at z=pzu [kg/kg]600 REAL(wp), INTENT(in) :: pCd601 REAL(wp), INTENT(in) :: pCh602 REAL(wp), INTENT(in) :: pCe603 REAL(wp), INTENT(in) :: pwnd ! wind speed module at z=pzu [m/s]604 REAL(wp), INTENT(in) :: pUb ! bulk wind speed at z=pzu (inc. pot. effect of gustiness etc) [m/s]605 REAL(wp), INTENT(in) :: pslp ! sea-level atmospheric pressure [Pa]606 !!607 REAL(wp), INTENT(out) :: pTau ! module of the wind stress [N/m^2]608 REAL(wp), INTENT(out) :: pQsen ! [W/m^2]609 REAL(wp), INTENT(out) :: pQlat ! [W/m^2]610 !!611 REAL(wp), INTENT(out), OPTIONAL :: pEvap ! Evaporation [kg/m^2/s]612 REAL(wp), INTENT(out), OPTIONAL :: prhoa ! Air density at z=pzu [kg/m^3]613 !!614 REAL(wp) :: ztaa, zgamma, zrho, zUrho, zevap615 INTEGER :: jq616 !!----------------------------------------------------------------------------------617 618 !! Need ztaa, absolute temperature at pzu (formula to estimate rho_air needs absolute temperature, not the potential temperature "pTa")619 ztaa = pTa ! first guess...620 DO jq = 1, 4621 zgamma = gamma_moist( 0.5*(ztaa+pTs) , pqa )622 ztaa = pTa - zgamma*pzu ! Absolute temp. is slightly colder...623 END DO624 zrho = rho_air(ztaa, pqa, pslp)625 zrho = rho_air(ztaa, pqa, pslp-zrho*grav*pzu) ! taking into account that we are pzu m above the sea level where SLP is given!626 627 zUrho = pUb*MAX(zrho, 1._wp) ! rho*U10628 629 pTau = zUrho * pCd * pwnd ! Wind stress module630 631 zevap = zUrho * pCe * (pqa - pqs)632 pQsen = zUrho * pCh * (pTa - pTs) * cp_air(pqa)633 pQlat = L_vap(pTs) * zevap634 635 IF( PRESENT(pEvap) ) pEvap = - zevap636 IF( PRESENT(prhoa) ) prhoa = zrho637 638 END SUBROUTINE BULK_FORMULA_SCLR639 640 641 636 642 637
Note: See TracChangeset
for help on using the changeset viewer.