1 | MODULE sbc_oce |
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2 | !!====================================================================== |
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3 | !! *** MODULE sbc_oce *** |
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4 | !! Surface module : variables defined in core memory |
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5 | !!====================================================================== |
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6 | !! History : 3.0 ! 2006-06 (G. Madec) Original code |
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7 | !! - ! 2008-08 (G. Madec) namsbc moved from sbcmod |
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8 | !!---------------------------------------------------------------------- |
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9 | USE par_oce ! ocean parameters |
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10 | |
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11 | IMPLICIT NONE |
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12 | PRIVATE |
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13 | |
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14 | PUBLIC sbc_tau2wnd ! compute wind speed based on the wind stress |
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15 | |
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16 | !!---------------------------------------------------------------------- |
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17 | !! Namelist for the Ocean Surface Boundary Condition |
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18 | !!---------------------------------------------------------------------- |
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19 | ! !! * namsbc namelist * |
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20 | LOGICAL , PUBLIC :: ln_ana = .FALSE. !: analytical boundary condition flag |
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21 | LOGICAL , PUBLIC :: ln_flx = .FALSE. !: flux formulation |
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22 | LOGICAL , PUBLIC :: ln_blk_clio = .FALSE. !: CLIO bulk formulation |
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23 | LOGICAL , PUBLIC :: ln_blk_core = .FALSE. !: CORE bulk formulation |
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24 | LOGICAL , PUBLIC :: ln_cpl = .FALSE. !: coupled formulation (overwritten by key_sbc_coupled ) |
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25 | LOGICAL , PUBLIC :: ln_dm2dc = .FALSE. !: Daily mean to Diurnal Cycle short wave (qsr) |
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26 | LOGICAL , PUBLIC :: ln_rnf = .FALSE. !: runoffs / runoff mouths |
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27 | LOGICAL , PUBLIC :: ln_ssr = .FALSE. !: Sea Surface restoring on SST and/or SSS |
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28 | INTEGER , PUBLIC :: nn_ice = 0 !: flag on ice in the surface boundary condition (=0/1/2/3) |
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29 | INTEGER , PUBLIC :: nn_fwb = 0 !: FreshWater Budget: |
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30 | ! !: = 0 unchecked |
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31 | ! !: = 1 global mean of e-p-r set to zero at each nn_fsbc time step |
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32 | ! !: = 2 annual global mean of e-p-r set to zero |
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33 | INTEGER , PUBLIC :: nn_ico_cpl = 0 !: ice-ocean coupling indicator |
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34 | ! !: = 0 LIM-3 old case |
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35 | ! !: = 1 stresses computed using now ocean velocity |
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36 | ! !: = 2 combination of 0 and 1 cases |
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37 | |
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38 | !!---------------------------------------------------------------------- |
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39 | !! Ocean Surface Boundary Condition fields |
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40 | !!---------------------------------------------------------------------- |
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41 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: utau !: sea surface i-stress (ocean referential) [N/m2] |
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42 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: vtau !: sea surface j-stress (ocean referential) [N/m2] |
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43 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: wndm !: wind speed module at T-point (=|U10m-Uoce|) [m/s] |
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44 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: qsr !: sea heat flux: solar [W/m2] |
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45 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: qns !: sea heat flux: non solar [W/m2] |
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46 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: qsr_tot !: total solar heat flux (over sea and ice) [W/m2] |
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47 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: qns_tot !: total non solar heat flux (over sea and ice) [W/m2] |
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48 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: emp !: freshwater budget: volume flux [Kg/m2/s] |
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49 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: emps !: freshwater budget: concentration/dillution [Kg/m2/s] |
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50 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: emp_tot !: total evaporation - (liquid + solid) precpitation over oce and ice |
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51 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: tprecip !: total precipitation [Kg/m2/s] |
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52 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: sprecip !: solid precipitation [Kg/m2/s] |
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53 | !!$ REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: rrunoff !: runoff |
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54 | !!$ REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: calving !: calving |
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55 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: fr_i !: ice fraction (between 0 to 1) - |
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56 | |
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57 | !!---------------------------------------------------------------------- |
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58 | !! Sea Surface Mean fields |
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59 | !!---------------------------------------------------------------------- |
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60 | INTEGER , PUBLIC :: nn_fsbc !: frequency of sbc computation (as well as sea-ice model) |
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61 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: ssu_m !: mean (nn_fsbc time-step) surface sea i-current (U-point) [m/s] |
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62 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: ssv_m !: mean (nn_fsbc time-step) surface sea j-current (V-point) [m/s] |
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63 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: sst_m !: mean (nn_fsbc time-step) surface sea temperature [Celsius] |
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64 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: sss_m !: mean (nn_fsbc time-step) surface sea salinity [psu] |
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65 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: ssh_m !: mean (nn_fsbc time-step) sea surface height [m] |
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66 | |
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67 | !!---------------------------------------------------------------------- |
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68 | !! OPA 9.0 , LOCEAN-IPSL (2006) |
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69 | !! $ Id: $ |
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70 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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71 | !!====================================================================== |
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72 | CONTAINS |
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73 | |
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74 | SUBROUTINE sbc_tau2wnd |
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75 | !!--------------------------------------------------------------------- |
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76 | !! *** ROUTINE sbc_tau2wnd *** |
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77 | !! |
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78 | !! ** Purpose : Estimation of wind speed as a function of wind stress |
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79 | !! |
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80 | !! ** Method : |tau|=rhoa*Cd*|U|^2 |
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81 | !!--------------------------------------------------------------------- |
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82 | USE dom_oce ! ocean space and time domain |
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83 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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84 | REAL(wp) :: zrhoa = 1.22 ! Air density kg/m3 |
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85 | REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient |
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86 | REAL(wp) :: ztx, zty, ztau, zcoef ! temporary variables |
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87 | INTEGER :: ji, jj ! dummy indices |
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88 | !! * Substitutions |
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89 | # include "vectopt_loop_substitute.h90" |
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90 | !!--------------------------------------------------------------------- |
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91 | zcoef = 0.5 / ( zrhoa * zcdrag ) |
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92 | !CDIR NOVERRCHK |
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93 | DO jj = 2, jpjm1 |
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94 | !CDIR NOVERRCHK |
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95 | DO ji = fs_2, fs_jpim1 ! vect. opt. |
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96 | ztx = utau(ji-1,jj ) + utau(ji,jj) |
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97 | zty = vtau(ji ,jj-1) + vtau(ji,jj) |
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98 | ztau = SQRT( ztx * ztx + zty * zty ) |
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99 | wndm(ji,jj) = SQRT ( ztau * zcoef ) * tmask(ji,jj,1) |
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100 | END DO |
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101 | END DO |
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102 | CALL lbc_lnk( wndm(:,:) , 'T', 1. ) |
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103 | |
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104 | END SUBROUTINE sbc_tau2wnd |
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105 | |
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106 | END MODULE sbc_oce |
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