Changeset 13899 for NEMO/branches/2020/tickets_icb_1900/src/ICE/icevar.F90
- Timestamp:
- 2020-11-27T17:26:33+01:00 (4 years ago)
- Location:
- NEMO/branches/2020/tickets_icb_1900
- Files:
-
- 2 edited
-
. (modified) (1 prop)
-
src/ICE/icevar.F90 (modified) (40 diffs)
Legend:
- Unmodified
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- Removed
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NEMO/branches/2020/tickets_icb_1900
- Property svn:externals
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NEMO/branches/2020/tickets_icb_1900/src/ICE/icevar.F90
r13226 r13899 51 51 !! ice_var_sshdyn : compute equivalent ssh in lead 52 52 !! ice_var_itd : convert N-cat to M-cat 53 !! ice_var_snwfra : fraction of ice covered by snow 54 !! ice_var_snwblow : distribute snow fall between ice and ocean 53 55 !!---------------------------------------------------------------------- 54 56 USE dom_oce ! ocean space and time domain … … 77 79 PUBLIC ice_var_sshdyn 78 80 PUBLIC ice_var_itd 81 PUBLIC ice_var_snwfra 82 PUBLIC ice_var_snwblow 79 83 80 84 INTERFACE ice_var_itd … … 84 88 !! * Substitutions 85 89 # include "do_loop_substitute.h90" 90 91 INTERFACE ice_var_snwfra 92 MODULE PROCEDURE ice_var_snwfra_1d, ice_var_snwfra_2d, ice_var_snwfra_3d 93 END INTERFACE 94 95 INTERFACE ice_var_snwblow 96 MODULE PROCEDURE ice_var_snwblow_1d, ice_var_snwblow_2d 97 END INTERFACE 98 86 99 !!---------------------------------------------------------------------- 87 100 !! NEMO/ICE 4.0 , NEMO Consortium (2018) … … 115 128 at_ip(:,:) = SUM( a_ip(:,:,:), dim=3 ) ! melt ponds 116 129 vt_ip(:,:) = SUM( v_ip(:,:,:), dim=3 ) 130 vt_il(:,:) = SUM( v_il(:,:,:), dim=3 ) 117 131 ! 118 132 ato_i(:,:) = 1._wp - at_i(:,:) ! open water fraction … … 166 180 ! 167 181 ! ! mean melt pond depth 168 WHERE( at_ip(:,:) > epsi20 ) ; hm_ip(:,:) = vt_ip(:,:) / at_ip(:,:) 169 ELSEWHERE ; hm_ip(:,:) = 0._wp 182 WHERE( at_ip(:,:) > epsi20 ) ; hm_ip(:,:) = vt_ip(:,:) / at_ip(:,:) ; hm_il(:,:) = vt_il(:,:) / at_ip(:,:) 183 ELSEWHERE ; hm_ip(:,:) = 0._wp ; hm_il(:,:) = 0._wp 170 184 END WHERE 171 185 ! … … 191 205 REAL(wp) :: zhmax, z1_zhmax ! - - 192 206 REAL(wp) :: zlay_i, zlay_s ! - - 193 REAL(wp), DIMENSION(jpi,jpj,jpl) :: z1_a_i, z1_v_i 207 REAL(wp), PARAMETER :: zhl_max = 0.015_wp ! pond lid thickness above which the ponds disappear from the albedo calculation 208 REAL(wp), PARAMETER :: zhl_min = 0.005_wp ! pond lid thickness below which the full pond area is used in the albedo calculation 209 REAL(wp), DIMENSION(jpi,jpj,jpl) :: z1_a_i, z1_v_i, z1_a_ip, za_s_fra 194 210 !!------------------------------------------------------------------- 195 211 … … 210 226 ELSEWHERE ; z1_v_i(:,:,:) = 0._wp 211 227 END WHERE 228 ! 229 WHERE( a_ip(:,:,:) > epsi20 ) ; z1_a_ip(:,:,:) = 1._wp / a_ip(:,:,:) 230 ELSEWHERE ; z1_a_ip(:,:,:) = 0._wp 231 END WHERE 212 232 ! !--- ice thickness 213 233 h_i(:,:,:) = v_i (:,:,:) * z1_a_i(:,:,:) … … 224 244 ! !--- ice age 225 245 o_i(:,:,:) = oa_i(:,:,:) * z1_a_i(:,:,:) 226 ! !--- pond fraction and thickness 246 ! !--- pond and lid thickness 247 h_ip(:,:,:) = v_ip(:,:,:) * z1_a_ip(:,:,:) 248 h_il(:,:,:) = v_il(:,:,:) * z1_a_ip(:,:,:) 249 ! !--- melt pond effective area (used for albedo) 227 250 a_ip_frac(:,:,:) = a_ip(:,:,:) * z1_a_i(:,:,:) 228 WHERE( a_ip_frac(:,:,:) > epsi20 ) ; h_ip(:,:,:) = v_ip(:,:,:) * z1_a_i(:,:,:) / a_ip_frac(:,:,:) 229 ELSEWHERE ; h_ip(:,:,:) = 0._wp 230 END WHERE 251 WHERE ( h_il(:,:,:) <= zhl_min ) ; a_ip_eff(:,:,:) = a_ip_frac(:,:,:) ! lid is very thin. Expose all the pond 252 ELSEWHERE( h_il(:,:,:) >= zhl_max ) ; a_ip_eff(:,:,:) = 0._wp ! lid is very thick. Cover all the pond up with ice and snow 253 ELSEWHERE ; a_ip_eff(:,:,:) = a_ip_frac(:,:,:) * & ! lid is in between. Expose part of the pond 254 & ( h_il(:,:,:) - zhl_min ) / ( zhl_max - zhl_min ) 255 END WHERE 256 ! 257 CALL ice_var_snwfra( h_s, za_s_fra ) ! calculate ice fraction covered by snow 258 a_ip_eff = MIN( a_ip_eff, 1._wp - za_s_fra ) ! make sure (a_ip_eff + a_s_fra) <= 1 231 259 ! 232 260 ! !--- salinity (with a minimum value imposed everywhere) … … 243 271 zlay_i = REAL( nlay_i , wp ) ! number of layers 244 272 DO jl = 1, jpl 245 DO_3D _11_11(1, nlay_i )273 DO_3D( 1, 1, 1, 1, 1, nlay_i ) 246 274 IF ( v_i(ji,jj,jl) > epsi20 ) THEN !--- icy area 247 275 ! … … 292 320 sv_i(:,:,:) = s_i (:,:,:) * v_i (:,:,:) 293 321 v_ip(:,:,:) = h_ip(:,:,:) * a_ip(:,:,:) 322 v_il(:,:,:) = h_il(:,:,:) * a_ip(:,:,:) 294 323 ! 295 324 END SUBROUTINE ice_var_eqv2glo … … 347 376 z1_dS = 1._wp / ( zsi1 - zsi0 ) 348 377 DO jl = 1, jpl 349 DO_2D _11_11378 DO_2D( 1, 1, 1, 1 ) 350 379 zalpha(ji,jj,jl) = MAX( 0._wp , MIN( ( zsi1 - s_i(ji,jj,jl) ) * z1_dS , 1._wp ) ) 351 380 ! ! force a constant profile when SSS too low (Baltic Sea) … … 356 385 ! Computation of the profile 357 386 DO jl = 1, jpl 358 DO_3D _11_11(1, nlay_i )387 DO_3D( 1, 1, 1, 1, 1, nlay_i ) 359 388 ! ! linear profile with 0 surface value 360 389 zs0 = z_slope_s(ji,jj,jl) * ( REAL(jk,wp) - 0.5_wp ) * h_i(ji,jj,jl) * r1_nlay_i … … 486 515 ! Zap ice energy and use ocean heat to melt ice 487 516 !----------------------------------------------------------------- 488 DO_3D _11_11(1, nlay_i )517 DO_3D( 1, 1, 1, 1, 1, nlay_i ) 489 518 ! update exchanges with ocean 490 519 hfx_res(ji,jj) = hfx_res(ji,jj) - (1._wp - zswitch(ji,jj) ) * e_i(ji,jj,jk,jl) * r1_Dt_ice ! W.m-2 <0 … … 493 522 END_3D 494 523 ! 495 DO_3D _11_11(1, nlay_s )524 DO_3D( 1, 1, 1, 1, 1, nlay_s ) 496 525 ! update exchanges with ocean 497 526 hfx_res(ji,jj) = hfx_res(ji,jj) - (1._wp - zswitch(ji,jj) ) * e_s(ji,jj,jk,jl) * r1_Dt_ice ! W.m-2 <0 … … 503 532 ! zap ice and snow volume, add water and salt to ocean 504 533 !----------------------------------------------------------------- 505 DO_2D _11_11534 DO_2D( 1, 1, 1, 1 ) 506 535 ! update exchanges with ocean 507 536 sfx_res(ji,jj) = sfx_res(ji,jj) + (1._wp - zswitch(ji,jj) ) * sv_i(ji,jj,jl) * rhoi * r1_Dt_ice … … 521 550 a_ip (ji,jj,jl) = a_ip (ji,jj,jl) * zswitch(ji,jj) 522 551 v_ip (ji,jj,jl) = v_ip (ji,jj,jl) * zswitch(ji,jj) 552 v_il (ji,jj,jl) = v_il (ji,jj,jl) * zswitch(ji,jj) 523 553 ! 524 554 END_2D … … 542 572 543 573 544 SUBROUTINE ice_var_zapneg( pdt, pato_i, pv_i, pv_s, psv_i, poa_i, pa_i, pa_ip, pv_ip, p e_s, pe_i )574 SUBROUTINE ice_var_zapneg( pdt, pato_i, pv_i, pv_s, psv_i, poa_i, pa_i, pa_ip, pv_ip, pv_il, pe_s, pe_i ) 545 575 !!------------------------------------------------------------------- 546 576 !! *** ROUTINE ice_var_zapneg *** … … 557 587 REAL(wp), DIMENSION(:,:,:) , INTENT(inout) :: pa_ip ! melt pond fraction 558 588 REAL(wp), DIMENSION(:,:,:) , INTENT(inout) :: pv_ip ! melt pond volume 589 REAL(wp), DIMENSION(:,:,:) , INTENT(inout) :: pv_il ! melt pond lid volume 559 590 REAL(wp), DIMENSION(:,:,:,:), INTENT(inout) :: pe_s ! snw heat content 560 591 REAL(wp), DIMENSION(:,:,:,:), INTENT(inout) :: pe_i ! ice heat content … … 574 605 ! zap ice energy and send it to the ocean 575 606 !---------------------------------------- 576 DO_3D _11_11(1, nlay_i )607 DO_3D( 1, 1, 1, 1, 1, nlay_i ) 577 608 IF( pe_i(ji,jj,jk,jl) < 0._wp .OR. pa_i(ji,jj,jl) <= 0._wp ) THEN 578 609 hfx_res(ji,jj) = hfx_res(ji,jj) - pe_i(ji,jj,jk,jl) * z1_dt ! W.m-2 >0 … … 581 612 END_3D 582 613 ! 583 DO_3D _11_11(1, nlay_s )614 DO_3D( 1, 1, 1, 1, 1, nlay_s ) 584 615 IF( pe_s(ji,jj,jk,jl) < 0._wp .OR. pa_i(ji,jj,jl) <= 0._wp ) THEN 585 616 hfx_res(ji,jj) = hfx_res(ji,jj) - pe_s(ji,jj,jk,jl) * z1_dt ! W.m-2 <0 … … 591 622 ! zap ice and snow volume, add water and salt to ocean 592 623 !----------------------------------------------------- 593 DO_2D _11_11624 DO_2D( 1, 1, 1, 1 ) 594 625 IF( pv_i(ji,jj,jl) < 0._wp .OR. pa_i(ji,jj,jl) <= 0._wp ) THEN 595 626 wfx_res(ji,jj) = wfx_res(ji,jj) + pv_i (ji,jj,jl) * rhoi * z1_dt … … 613 644 WHERE( pa_ip (:,:,:) < 0._wp ) pa_ip (:,:,:) = 0._wp 614 645 WHERE( pv_ip (:,:,:) < 0._wp ) pv_ip (:,:,:) = 0._wp ! in theory one should change wfx_pnd(-) and wfx_sum(+) 615 !but it does not change conservation, so keep it this way is ok646 WHERE( pv_il (:,:,:) < 0._wp ) pv_il (:,:,:) = 0._wp ! but it does not change conservation, so keep it this way is ok 616 647 ! 617 648 END SUBROUTINE ice_var_zapneg 618 649 619 650 620 SUBROUTINE ice_var_roundoff( pa_i, pv_i, pv_s, psv_i, poa_i, pa_ip, pv_ip, p e_s, pe_i )651 SUBROUTINE ice_var_roundoff( pa_i, pv_i, pv_s, psv_i, poa_i, pa_ip, pv_ip, pv_il, pe_s, pe_i ) 621 652 !!------------------------------------------------------------------- 622 653 !! *** ROUTINE ice_var_roundoff *** … … 631 662 REAL(wp), DIMENSION(:,:) , INTENT(inout) :: pa_ip ! melt pond fraction 632 663 REAL(wp), DIMENSION(:,:) , INTENT(inout) :: pv_ip ! melt pond volume 664 REAL(wp), DIMENSION(:,:) , INTENT(inout) :: pv_il ! melt pond lid volume 633 665 REAL(wp), DIMENSION(:,:,:), INTENT(inout) :: pe_s ! snw heat content 634 666 REAL(wp), DIMENSION(:,:,:), INTENT(inout) :: pe_i ! ice heat content … … 643 675 WHERE( pe_i (1:npti,:,:) < 0._wp ) pe_i (1:npti,:,:) = 0._wp ! e_i must be >= 0 644 676 WHERE( pe_s (1:npti,:,:) < 0._wp ) pe_s (1:npti,:,:) = 0._wp ! e_s must be >= 0 645 IF( ln_pnd_ H12) THEN677 IF( ln_pnd_LEV ) THEN 646 678 WHERE( pa_ip(1:npti,:) < 0._wp ) pa_ip(1:npti,:) = 0._wp ! a_ip must be >= 0 647 679 WHERE( pv_ip(1:npti,:) < 0._wp ) pv_ip(1:npti,:) = 0._wp ! v_ip must be >= 0 680 IF( ln_pnd_lids ) THEN 681 WHERE( pv_il(1:npti,:) < 0._wp .AND. pv_il(1:npti,:) > -epsi10 ) pv_il(1:npti,:) = 0._wp ! v_il must be >= 0 682 ENDIF 648 683 ENDIF 649 684 ! … … 764 799 !! ** Purpose : converting N-cat ice to jpl ice categories 765 800 !!------------------------------------------------------------------- 766 SUBROUTINE ice_var_itd_1c1c( phti, phts, pati , ph_i, ph_s, pa_i, &767 & ptmi, ptms, ptmsu, psmi, patip, phtip, pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip)801 SUBROUTINE ice_var_itd_1c1c( phti, phts, pati , ph_i, ph_s, pa_i, & 802 & ptmi, ptms, ptmsu, psmi, patip, phtip, phtil, pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip, ph_il ) 768 803 !!------------------------------------------------------------------- 769 804 !! ** Purpose : converting 1-cat ice to 1 ice category … … 771 806 REAL(wp), DIMENSION(:), INTENT(in) :: phti, phts, pati ! input ice/snow variables 772 807 REAL(wp), DIMENSION(:), INTENT(inout) :: ph_i, ph_s, pa_i ! output ice/snow variables 773 REAL(wp), DIMENSION(:), INTENT(in) :: ptmi, ptms, ptmsu, psmi, patip, phtip ! input ice/snow temp & sal & ponds774 REAL(wp), DIMENSION(:), INTENT(inout) :: pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip ! output ice/snow temp & sal & ponds808 REAL(wp), DIMENSION(:), INTENT(in) :: ptmi, ptms, ptmsu, psmi, patip, phtip, phtil ! input ice/snow temp & sal & ponds 809 REAL(wp), DIMENSION(:), INTENT(inout) :: pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip, ph_il ! output ice/snow temp & sal & ponds 775 810 !!------------------------------------------------------------------- 776 811 ! == thickness and concentration == ! … … 786 821 pa_ip(:) = patip(:) 787 822 ph_ip(:) = phtip(:) 823 ph_il(:) = phtil(:) 788 824 789 825 END SUBROUTINE ice_var_itd_1c1c 790 826 791 SUBROUTINE ice_var_itd_Nc1c( phti, phts, pati , ph_i, ph_s, pa_i, &792 & ptmi, ptms, ptmsu, psmi, patip, phtip, pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip)827 SUBROUTINE ice_var_itd_Nc1c( phti, phts, pati , ph_i, ph_s, pa_i, & 828 & ptmi, ptms, ptmsu, psmi, patip, phtip, phtil, pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip, ph_il ) 793 829 !!------------------------------------------------------------------- 794 830 !! ** Purpose : converting N-cat ice to 1 ice category … … 796 832 REAL(wp), DIMENSION(:,:), INTENT(in) :: phti, phts, pati ! input ice/snow variables 797 833 REAL(wp), DIMENSION(:) , INTENT(inout) :: ph_i, ph_s, pa_i ! output ice/snow variables 798 REAL(wp), DIMENSION(:,:), INTENT(in) :: ptmi, ptms, ptmsu, psmi, patip, phtip ! input ice/snow temp & sal & ponds799 REAL(wp), DIMENSION(:) , INTENT(inout) :: pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip ! output ice/snow temp & sal & ponds834 REAL(wp), DIMENSION(:,:), INTENT(in) :: ptmi, ptms, ptmsu, psmi, patip, phtip, phtil ! input ice/snow temp & sal & ponds 835 REAL(wp), DIMENSION(:) , INTENT(inout) :: pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip, ph_il ! output ice/snow temp & sal & ponds 800 836 ! 801 837 REAL(wp), ALLOCATABLE, DIMENSION(:) :: z1_ai, z1_vi, z1_vs … … 832 868 ! == ponds == ! 833 869 pa_ip(:) = SUM( patip(:,:), dim=2 ) 834 WHERE( pa_ip(:) /= 0._wp ) ; ph_ip(:) = SUM( phtip(:,:) * patip(:,:), dim=2 ) / pa_ip(:) 835 ELSEWHERE ; ph_ip(:) = 0._wp 870 WHERE( pa_ip(:) /= 0._wp ) 871 ph_ip(:) = SUM( phtip(:,:) * patip(:,:), dim=2 ) / pa_ip(:) 872 ph_il(:) = SUM( phtil(:,:) * patip(:,:), dim=2 ) / pa_ip(:) 873 ELSEWHERE 874 ph_ip(:) = 0._wp 875 ph_il(:) = 0._wp 836 876 END WHERE 837 877 ! … … 840 880 END SUBROUTINE ice_var_itd_Nc1c 841 881 842 SUBROUTINE ice_var_itd_1cMc( phti, phts, pati , ph_i, ph_s, pa_i, &843 & ptmi, ptms, ptmsu, psmi, patip, phtip, pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip)882 SUBROUTINE ice_var_itd_1cMc( phti, phts, pati , ph_i, ph_s, pa_i, & 883 & ptmi, ptms, ptmsu, psmi, patip, phtip, phtil, pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip, ph_il ) 844 884 !!------------------------------------------------------------------- 845 885 !! … … 863 903 REAL(wp), DIMENSION(:), INTENT(in) :: phti, phts, pati ! input ice/snow variables 864 904 REAL(wp), DIMENSION(:,:), INTENT(inout) :: ph_i, ph_s, pa_i ! output ice/snow variables 865 REAL(wp), DIMENSION(:) , INTENT(in) :: ptmi, ptms, ptmsu, psmi, patip, phtip ! input ice/snow temp & sal & ponds866 REAL(wp), DIMENSION(:,:), INTENT(inout) :: pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip ! output ice/snow temp & sal & ponds905 REAL(wp), DIMENSION(:) , INTENT(in) :: ptmi, ptms, ptmsu, psmi, patip, phtip, phtil ! input ice/snow temp & sal & ponds 906 REAL(wp), DIMENSION(:,:), INTENT(inout) :: pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip, ph_il ! output ice/snow temp & sal & ponds 867 907 ! 868 908 REAL(wp), ALLOCATABLE, DIMENSION(:) :: zfra, z1_hti … … 954 994 pt_su(:,jl) = ptmsu(:) 955 995 ps_i (:,jl) = psmi (:) 956 ps_i (:,jl) = psmi (:)957 996 END DO 958 997 ! … … 975 1014 END WHERE 976 1015 END DO 1016 ! keep the same v_il/v_i ratio for each category 1017 WHERE( ( phti(:) * pati(:) ) /= 0._wp ) ; zfra(:) = ( phtil(:) * patip(:) ) / ( phti(:) * pati(:) ) 1018 ELSEWHERE ; zfra(:) = 0._wp 1019 END WHERE 1020 DO jl = 1, jpl 1021 WHERE( pa_ip(:,jl) /= 0._wp ) ; ph_il(:,jl) = zfra(:) * ( ph_i(:,jl) * pa_i(:,jl) ) / pa_ip(:,jl) 1022 ELSEWHERE ; ph_il(:,jl) = 0._wp 1023 END WHERE 1024 END DO 977 1025 DEALLOCATE( zfra ) 978 1026 ! 979 1027 END SUBROUTINE ice_var_itd_1cMc 980 1028 981 SUBROUTINE ice_var_itd_NcMc( phti, phts, pati , ph_i, ph_s, pa_i, &982 & ptmi, ptms, ptmsu, psmi, patip, phtip, pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip)1029 SUBROUTINE ice_var_itd_NcMc( phti, phts, pati , ph_i, ph_s, pa_i, & 1030 & ptmi, ptms, ptmsu, psmi, patip, phtip, phtil, pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip, ph_il ) 983 1031 !!------------------------------------------------------------------- 984 1032 !! … … 995 1043 !! 996 1044 !! 2) Expand the filling to the cat jlmin-1 and jlmax+1 997 1045 !! by removing 25% ice area from jlmin and jlmax (resp.) 998 1046 !! 999 1047 !! 3) Expand the filling to the empty cat between jlmin and jlmax … … 1011 1059 REAL(wp), DIMENSION(:,:), INTENT(in) :: phti, phts, pati ! input ice/snow variables 1012 1060 REAL(wp), DIMENSION(:,:), INTENT(inout) :: ph_i, ph_s, pa_i ! output ice/snow variables 1013 REAL(wp), DIMENSION(:,:), INTENT(in) :: ptmi, ptms, ptmsu, psmi, patip, phtip ! input ice/snow temp & sal & ponds1014 REAL(wp), DIMENSION(:,:), INTENT(inout) :: pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip ! output ice/snow temp & sal & ponds1061 REAL(wp), DIMENSION(:,:), INTENT(in) :: ptmi, ptms, ptmsu, psmi, patip, phtip, phtil ! input ice/snow temp & sal & ponds 1062 REAL(wp), DIMENSION(:,:), INTENT(inout) :: pt_i, pt_s, pt_su, ps_i, pa_ip, ph_ip, ph_il ! output ice/snow temp & sal & ponds 1015 1063 ! 1016 1064 INTEGER , ALLOCATABLE, DIMENSION(:,:) :: jlfil, jlfil2 … … 1041 1089 pa_ip(:,:) = patip(:,:) 1042 1090 ph_ip(:,:) = phtip(:,:) 1091 ph_il(:,:) = phtil(:,:) 1043 1092 ! ! ---------------------- ! 1044 1093 ELSEIF( icat == 1 ) THEN ! input cat = 1 ! … … 1046 1095 CALL ice_var_itd_1cMc( phti(:,1), phts(:,1), pati (:,1), & 1047 1096 & ph_i(:,:), ph_s(:,:), pa_i (:,:), & 1048 & ptmi(:,1), ptms(:,1), ptmsu(:,1), psmi(:,1), patip(:,1), phtip(:,1), &1049 & pt_i(:,:), pt_s(:,:), pt_su(:,:), ps_i(:,:), pa_ip(:,:), ph_ip(:,:) )1097 & ptmi(:,1), ptms(:,1), ptmsu(:,1), psmi(:,1), patip(:,1), phtip(:,1), phtil(:,1), & 1098 & pt_i(:,:), pt_s(:,:), pt_su(:,:), ps_i(:,:), pa_ip(:,:), ph_ip(:,:), ph_il(:,:) ) 1050 1099 ! ! ---------------------- ! 1051 1100 ELSEIF( jpl == 1 ) THEN ! output cat = 1 ! … … 1053 1102 CALL ice_var_itd_Nc1c( phti(:,:), phts(:,:), pati (:,:), & 1054 1103 & ph_i(:,1), ph_s(:,1), pa_i (:,1), & 1055 & ptmi(:,:), ptms(:,:), ptmsu(:,:), psmi(:,:), patip(:,:), phtip(:,:), &1056 & pt_i(:,1), pt_s(:,1), pt_su(:,1), ps_i(:,1), pa_ip(:,1), ph_ip(:,1) )1104 & ptmi(:,:), ptms(:,:), ptmsu(:,:), psmi(:,:), patip(:,:), phtip(:,:), phtil(:,:), & 1105 & pt_i(:,1), pt_s(:,1), pt_su(:,1), ps_i(:,1), pa_ip(:,1), ph_ip(:,1), ph_il(:,1) ) 1057 1106 ! ! ----------------------- ! 1058 1107 ELSE ! input cat /= output cat ! … … 1196 1245 END WHERE 1197 1246 END DO 1247 ! keep the same v_il/v_i ratio for each category 1248 WHERE( SUM( phti(:,:) * pati(:,:), dim=2 ) /= 0._wp ) 1249 zfra(:) = SUM( phtil(:,:) * patip(:,:), dim=2 ) / SUM( phti(:,:) * pati(:,:), dim=2 ) 1250 ELSEWHERE 1251 zfra(:) = 0._wp 1252 END WHERE 1253 DO jl = 1, jpl 1254 WHERE( pa_ip(:,jl) /= 0._wp ) ; ph_il(:,jl) = zfra(:) * ( ph_i(:,jl) * pa_i(:,jl) ) / pa_ip(:,jl) 1255 ELSEWHERE ; ph_il(:,jl) = 0._wp 1256 END WHERE 1257 END DO 1198 1258 DEALLOCATE( zfra ) 1199 1259 ! … … 1201 1261 ! 1202 1262 END SUBROUTINE ice_var_itd_NcMc 1263 1264 !!------------------------------------------------------------------- 1265 !! INTERFACE ice_var_snwfra 1266 !! 1267 !! ** Purpose : fraction of ice covered by snow 1268 !! 1269 !! ** Method : In absence of proper snow model on top of sea ice, 1270 !! we argue that snow does not cover the whole ice because 1271 !! of wind blowing... 1272 !! 1273 !! ** Arguments : ph_s: snow thickness 1274 !! 1275 !! ** Output : pa_s_fra: fraction of ice covered by snow 1276 !! 1277 !!------------------------------------------------------------------- 1278 SUBROUTINE ice_var_snwfra_3d( ph_s, pa_s_fra ) 1279 REAL(wp), DIMENSION(:,:,:), INTENT(in ) :: ph_s ! snow thickness 1280 REAL(wp), DIMENSION(:,:,:), INTENT( out) :: pa_s_fra ! ice fraction covered by snow 1281 IF ( nn_snwfra == 0 ) THEN ! basic 0 or 1 snow cover 1282 WHERE( ph_s > 0._wp ) ; pa_s_fra = 1._wp 1283 ELSEWHERE ; pa_s_fra = 0._wp 1284 END WHERE 1285 ELSEIF( nn_snwfra == 1 ) THEN ! snow cover depends on hsnow (met-office style) 1286 pa_s_fra = 1._wp - EXP( -0.2_wp * rhos * ph_s ) 1287 ELSEIF( nn_snwfra == 2 ) THEN ! snow cover depends on hsnow (cice style) 1288 pa_s_fra = ph_s / ( ph_s + 0.02_wp ) 1289 ENDIF 1290 END SUBROUTINE ice_var_snwfra_3d 1291 1292 SUBROUTINE ice_var_snwfra_2d( ph_s, pa_s_fra ) 1293 REAL(wp), DIMENSION(:,:), INTENT(in ) :: ph_s ! snow thickness 1294 REAL(wp), DIMENSION(:,:), INTENT( out) :: pa_s_fra ! ice fraction covered by snow 1295 IF ( nn_snwfra == 0 ) THEN ! basic 0 or 1 snow cover 1296 WHERE( ph_s > 0._wp ) ; pa_s_fra = 1._wp 1297 ELSEWHERE ; pa_s_fra = 0._wp 1298 END WHERE 1299 ELSEIF( nn_snwfra == 1 ) THEN ! snow cover depends on hsnow (met-office style) 1300 pa_s_fra = 1._wp - EXP( -0.2_wp * rhos * ph_s ) 1301 ELSEIF( nn_snwfra == 2 ) THEN ! snow cover depends on hsnow (cice style) 1302 pa_s_fra = ph_s / ( ph_s + 0.02_wp ) 1303 ENDIF 1304 END SUBROUTINE ice_var_snwfra_2d 1305 1306 SUBROUTINE ice_var_snwfra_1d( ph_s, pa_s_fra ) 1307 REAL(wp), DIMENSION(:), INTENT(in ) :: ph_s ! snow thickness 1308 REAL(wp), DIMENSION(:), INTENT( out) :: pa_s_fra ! ice fraction covered by snow 1309 IF ( nn_snwfra == 0 ) THEN ! basic 0 or 1 snow cover 1310 WHERE( ph_s > 0._wp ) ; pa_s_fra = 1._wp 1311 ELSEWHERE ; pa_s_fra = 0._wp 1312 END WHERE 1313 ELSEIF( nn_snwfra == 1 ) THEN ! snow cover depends on hsnow (met-office style) 1314 pa_s_fra = 1._wp - EXP( -0.2_wp * rhos * ph_s ) 1315 ELSEIF( nn_snwfra == 2 ) THEN ! snow cover depends on hsnow (cice style) 1316 pa_s_fra = ph_s / ( ph_s + 0.02_wp ) 1317 ENDIF 1318 END SUBROUTINE ice_var_snwfra_1d 1319 1320 !!-------------------------------------------------------------------------- 1321 !! INTERFACE ice_var_snwblow 1322 !! 1323 !! ** Purpose : Compute distribution of precip over the ice 1324 !! 1325 !! Snow accumulation in one thermodynamic time step 1326 !! snowfall is partitionned between leads and ice. 1327 !! If snow fall was uniform, a fraction (1-at_i) would fall into leads 1328 !! but because of the winds, more snow falls on leads than on sea ice 1329 !! and a greater fraction (1-at_i)^beta of the total mass of snow 1330 !! (beta < 1) falls in leads. 1331 !! In reality, beta depends on wind speed, 1332 !! and should decrease with increasing wind speed but here, it is 1333 !! considered as a constant. an average value is 0.66 1334 !!-------------------------------------------------------------------------- 1335 !!gm I think it can be usefull to set this as a FUNCTION, not a SUBROUTINE.... 1336 SUBROUTINE ice_var_snwblow_2d( pin, pout ) 1337 REAL(wp), DIMENSION(:,:), INTENT(in ) :: pin ! previous fraction lead ( 1. - a_i_b ) 1338 REAL(wp), DIMENSION(:,:), INTENT(inout) :: pout 1339 pout = ( 1._wp - ( pin )**rn_snwblow ) 1340 END SUBROUTINE ice_var_snwblow_2d 1341 1342 SUBROUTINE ice_var_snwblow_1d( pin, pout ) 1343 REAL(wp), DIMENSION(:), INTENT(in ) :: pin 1344 REAL(wp), DIMENSION(:), INTENT(inout) :: pout 1345 pout = ( 1._wp - ( pin )**rn_snwblow ) 1346 END SUBROUTINE ice_var_snwblow_1d 1203 1347 1204 1348 #else
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