- Timestamp:
- 2020-11-30T13:56:26+01:00 (3 years ago)
- Location:
- NEMO/branches/2020/SI3_vp_rheology
- Files:
-
- 4 edited
-
cfgs/SHARED/namelist_ice_ref (modified) (1 diff)
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src/ICE/ice.F90 (modified) (1 diff)
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src/ICE/icedyn_rhg.F90 (modified) (6 diffs)
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src/ICE/iceistate.F90 (modified) (1 diff)
Legend:
- Unmodified
- Added
- Removed
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NEMO/branches/2020/SI3_vp_rheology/cfgs/SHARED/namelist_ice_ref
r13474 r13920 98 98 rn_relast = 0.333 ! ratio of elastic timescale to ice time step: Telast = dt_ice * rn_relast 99 99 ! advised value: 1/3 (nn_nevp=100) or 1/9 (nn_nevp=300) 100 ln_rhg_VP = .false. ! VP rheology 101 nn_nout_vp = 10 ! number of outer iterations 102 nn_ninn_vp = 1500 ! number of inner iterations 103 ln_zebra_vp = .true. ! activate zebra solver 104 rn_relaxu_vp = 0.95 ! relaxation factor for u-velocity 105 rn_relaxv_vp = 0.95 ! relaxation factor for v-velocity 106 rn_uerr_max_vp = 0.80 ! maximum error on velocity 107 rn_uerr_min_vp = 1.0e-04 ! velocity to decide convergence 108 nn_cvgchk_vp = 5 ! iteration step for convergence check 100 109 nn_rhg_chkcvg = 0 ! check convergence of rheology 101 110 ! = 0 no check -
NEMO/branches/2020/SI3_vp_rheology/src/ICE/ice.F90
r13641 r13920 150 150 ! 151 151 ! !!** ice-rheology namelist (namdyn_rhg) ** 152 ! -- evp 152 153 LOGICAL , PUBLIC :: ln_aEVP !: using adaptive EVP (T or F) 153 REAL(wp), PUBLIC :: rn_creepl !: creep limit : has to be under 1.0e-9154 REAL(wp), PUBLIC :: rn_creepl !: creep limit (has to be low enough, circa 10-9 m/s, depending on rheology) 154 155 REAL(wp), PUBLIC :: rn_ecc !: eccentricity of the elliptical yield curve 155 156 INTEGER , PUBLIC :: nn_nevp !: number of iterations for subcycling 156 157 REAL(wp), PUBLIC :: rn_relast !: ratio => telast/rDt_ice (1/3 or 1/9 depending on nb of subcycling nevp) 157 158 INTEGER , PUBLIC :: nn_rhg_chkcvg !: check ice rheology convergence 159 ! -- vp 160 INTEGER , PUBLIC :: nn_nout_vp !: Number of outer iterations 161 INTEGER , PUBLIC :: nn_ninn_vp !: Number of inner iterations (linear system solver) 162 LOGICAL , PUBLIC :: ln_zebra_vp !: activate zebra (solve the linear system problem every odd j-band, then one every even one) 163 REAL(wp), PUBLIC :: rn_relaxu_vp !: U-relaxation factor (MV: can probably be merged with V-factor once ok) 164 REAL(wp), PUBLIC :: rn_relaxv_vp !: V-relaxation factor 165 REAL(wp), PUBLIC :: rn_uerr_max_vp !: maximum velocity error, above which a forcing error is considered and solver is stopped 166 REAL(wp), PUBLIC :: rn_uerr_min_vp !: minimum velocity error, beyond which convergence is assumed 167 INTEGER , PUBLIC :: nn_cvgchk_vp !: Number of iterations every each convergence is checked 158 168 ! 159 169 ! !!** ice-advection namelist (namdyn_adv) ** -
NEMO/branches/2020/SI3_vp_rheology/src/ICE/icedyn_rhg.F90
r13472 r13920 17 17 USE ice ! sea-ice: variables 18 18 USE icedyn_rhg_evp ! sea-ice: EVP rheology 19 USE icedyn_rhg_vp ! sea-ice: VP rheology 19 20 USE icectl ! sea-ice: control prints 20 21 ! … … 34 35 INTEGER, PARAMETER :: np_rhgEVP = 1 ! EVP rheology 35 36 !! INTEGER, PARAMETER :: np_rhgEAP = 2 ! EAP rheology 37 INTEGER, PARAMETER :: np_rhgVP = 3 ! VP rheology 36 38 37 39 ! ** namelist (namrhg) ** 38 40 LOGICAL :: ln_rhg_EVP ! EVP rheology 41 LOGICAL :: ln_rhg_VP ! EVP rheology 39 42 ! 40 43 !!---------------------------------------------------------------------- … … 77 80 ! !------------------------! 78 81 CALL ice_dyn_rhg_evp( kt, Kmm, stress1_i, stress2_i, stress12_i, shear_i, divu_i, delta_i ) 79 ! 82 ! 83 ! !---------------------------------------------! 84 CASE( np_rhgVP ) ! Viscous-Plastic rheology ! 85 ! !---------------------------------------------! 86 CALL ice_dyn_rhg_vp ( kt, shear_i, divu_i, delta_i ) 80 87 END SELECT 81 88 ! 82 89 IF( lrst_ice ) THEN !* write EVP fields in the restart file 83 90 IF( ln_rhg_EVP ) CALL rhg_evp_rst( 'WRITE', kt ) 91 ! MV note: no restart needed for VP as there is no time equation for stress tensor 84 92 ENDIF 85 93 ! … … 108 116 INTEGER :: ios, ioptio ! Local integer output status for namelist read 109 117 !! 110 NAMELIST/namdyn_rhg/ ln_rhg_EVP, ln_aEVP, rn_creepl, rn_ecc , nn_nevp, rn_relast, nn_rhg_chkcvg 118 NAMELIST/namdyn_rhg/ ln_rhg_EVP, ln_aEVP, rn_creepl, rn_ecc , nn_nevp, rn_relast, nn_rhg_chkcvg, & !-- evp 119 & ln_rhg_VP, nn_nout_vp, nn_ninn_vp, ln_zebra_vp, rn_relaxu_vp, rn_relaxv_vp, rn_uerr_max_vp, rn_uerr_min_vp, nn_cvgchk_vp !-- vp 111 120 !!------------------------------------------------------------------- 112 121 ! … … 124 133 WRITE(numout,*) ' rheology EVP (icedyn_rhg_evp) ln_rhg_EVP = ', ln_rhg_EVP 125 134 WRITE(numout,*) ' use adaptive EVP (aEVP) ln_aEVP = ', ln_aEVP 126 WRITE(numout,*) ' creep limit rn_creepl = ', rn_creepl 127 WRITE(numout,*) ' eccentricity of the elliptical yield curve rn_ecc = ', rn_ecc 135 WRITE(numout,*) ' creep limit rn_creepl = ', rn_creepl ! also used by vp 136 WRITE(numout,*) ' eccentricity of the elliptical yield curve rn_ecc = ', rn_ecc ! also used by vp 128 137 WRITE(numout,*) ' number of iterations for subcycling nn_nevp = ', nn_nevp 129 138 WRITE(numout,*) ' ratio of elastic timescale over ice time step rn_relast = ', rn_relast 130 WRITE(numout,*) ' check convergence of rheology nn_rhg_chkcvg = ', nn_rhg_chkcvg 139 WRITE(numout,*) ' check convergence of rheology nn_rhg_chkcvg = ', nn_rhg_chkcvg ! maybe duplicates nn_cvgchk_vp ? 140 WRITE(numout,*) ' rheology VP (icedyn_rhg_VP) ln_rhg_VP = ', ln_rhg_VP 141 WRITE(numout,*) ' number of outer iterations nn_nout_vp = ', nn_nout_vp 142 WRITE(numout,*) ' number of inner iterations nn_ninn_vp = ', nn_ninn_vp 143 WRITE(numout,*) ' activate zebra solver ln_zebra_vp = ', ln_zebra_vp 144 WRITE(numout,*) ' relaxation factor for u rn_relaxu_vp = ', rn_relaxu_vp 145 WRITE(numout,*) ' relaxation factor for v rn_relaxv_vp = ', rn_relaxv_vp 146 WRITE(numout,*) ' maximum error on velocity rn_uerr_max_vp = ', rn_uerr_max_vp 147 WRITE(numout,*) ' velocity to decide convergence rn_uerr_min_vp = ', rn_uerr_min_vp 148 WRITE(numout,*) ' iteration step for convergence check nn_cvgchk_vp = ', nn_cvgchk_vp 131 149 IF ( nn_rhg_chkcvg == 0 ) THEN ; WRITE(numout,*) ' no check' 132 150 ELSEIF( nn_rhg_chkcvg == 1 ) THEN ; WRITE(numout,*) ' check cvg at the main time step' … … 139 157 IF( ln_rhg_EVP ) THEN ; ioptio = ioptio + 1 ; nice_rhg = np_rhgEVP ; ENDIF 140 158 !! IF( ln_rhg_EAP ) THEN ; ioptio = ioptio + 1 ; nice_rhg = np_rhgEAP ; ENDIF 159 IF( ln_rhg_VP ) THEN ; ioptio = ioptio + 1 ; nice_rhg = np_rhgVP ; ENDIF 141 160 IF( ioptio /= 1 ) CALL ctl_stop( 'ice_dyn_rhg_init: choose one and only one ice rheology' ) 142 161 ! 143 162 IF( ln_rhg_EVP ) CALL rhg_evp_rst( 'READ' ) !* read or initialize all required files 163 ! no restart for VP as there is no explicit time dependency in the equation 144 164 ! 145 165 END SUBROUTINE ice_dyn_rhg_init -
NEMO/branches/2020/SI3_vp_rheology/src/ICE/iceistate.F90
r13472 r13920 174 174 u_ice (:,:) = 0._wp 175 175 v_ice (:,:) = 0._wp 176 177 CALL lbc_lnk_multi( 'ice_istate' , u_ice, 'U', -1., v_ice, 'V', -1. ) ! required for VP rheology 176 178 ! 177 179 !------------------------------------------------------------------------
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