| 1 | MODULE ice |
|---|
| 2 | !!====================================================================== |
|---|
| 3 | !! *** MODULE ice *** |
|---|
| 4 | !! Sea Ice physics: diagnostics variables of ice defined in memory |
|---|
| 5 | !!===================================================================== |
|---|
| 6 | #if defined key_ice_lim |
|---|
| 7 | !!---------------------------------------------------------------------- |
|---|
| 8 | !! 'key_ice_lim' : LIM sea-ice model |
|---|
| 9 | !!---------------------------------------------------------------------- |
|---|
| 10 | !! History : |
|---|
| 11 | !! 2.0 ! 03-08 (C. Ethe) F90: Free form and module |
|---|
| 12 | !!---------------------------------------------------------------------- |
|---|
| 13 | !! LIM 2.0, UCL-LODYC-IPSL (2002) |
|---|
| 14 | !!---------------------------------------------------------------------- |
|---|
| 15 | !! * Modules used |
|---|
| 16 | USE par_ice ! LIM sea-ice parameters |
|---|
| 17 | |
|---|
| 18 | IMPLICIT NONE |
|---|
| 19 | PRIVATE |
|---|
| 20 | |
|---|
| 21 | !! * Share Module variables |
|---|
| 22 | INTEGER , PUBLIC :: & !!: ** ice-dynamic namelist (namicedyn) ** |
|---|
| 23 | nbiter = 1 , & !: number of sub-time steps for relaxation |
|---|
| 24 | nbitdr = 250 !: maximum number of iterations for relaxation |
|---|
| 25 | |
|---|
| 26 | REAL(wp), PUBLIC :: & !!: ** ice-dynamic namelist (namicedyn) ** |
|---|
| 27 | epsd = 1.0e-20, & !: tolerance parameter for dynamic |
|---|
| 28 | alpha = 0.5 , & !: coefficient for semi-implicit coriolis |
|---|
| 29 | dm = 0.6e+03, & !: diffusion constant for dynamics |
|---|
| 30 | om = 0.5 , & !: relaxation constant |
|---|
| 31 | resl = 5.0e-05, & !: maximum value for the residual of relaxation |
|---|
| 32 | cw = 5.0e-03, & !: drag coefficient for oceanic stress |
|---|
| 33 | angvg = 0.e0 , & !: turning angle for oceanic stress |
|---|
| 34 | pstar = 1.0e+04, & !: first bulk-rheology parameter |
|---|
| 35 | c_rhg = 20.e0 , & !: second bulk-rhelogy parameter |
|---|
| 36 | etamn = 0.e+07, & !: minimun value for viscosity |
|---|
| 37 | creepl = 2.e-08, & !: creep limit |
|---|
| 38 | ecc = 2.e0 , & !: eccentricity of the elliptical yield curve |
|---|
| 39 | ahi0 = 350.e0 !: sea-ice hor. eddy diffusivity coeff. (m2/s) |
|---|
| 40 | |
|---|
| 41 | REAL(wp), PUBLIC :: & !: |
|---|
| 42 | usecc2 , & !: = 1.0 / ( ecc * ecc ) |
|---|
| 43 | rhoco , & !: = rau0 * cw |
|---|
| 44 | sangvg, cangvg , & !: sin and cos of the turning angle for ocean stress |
|---|
| 45 | pstarh !: pstar / 2.0 |
|---|
| 46 | |
|---|
| 47 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & !: |
|---|
| 48 | u_oce, v_oce, & !: surface ocean velocity used in ice dynamics |
|---|
| 49 | ahiu , ahiv , & !: hor. diffusivity coeff. at ocean U- and V-points (m2/s) |
|---|
| 50 | pahu , pahv , & !: ice hor. eddy diffusivity coef. at ocean U- and V-points |
|---|
| 51 | hsnm , hicm , & !: mean snow and ice thicknesses |
|---|
| 52 | ust2s !: friction velocity |
|---|
| 53 | |
|---|
| 54 | |
|---|
| 55 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & !: |
|---|
| 56 | firic , & !: IR flux over the ice (only used for outputs) |
|---|
| 57 | fcsic , & !: Sensible heat flux over the ice (only used for outputs) |
|---|
| 58 | fleic , & !: Latent heat flux over the ice (only used for outputs) |
|---|
| 59 | qlatic , & !: latent flux |
|---|
| 60 | rdvosif, & !: Variation of volume at surface (only used for outputs) |
|---|
| 61 | rdvobif, & !: Variation of ice volume at the bottom ice (only used for outputs) |
|---|
| 62 | fdvolif, & !: Total variation of ice volume (only used for outputs) |
|---|
| 63 | rdvonif, & !: Lateral Variation of ice volume (only used for outputs) |
|---|
| 64 | sist , & !: Sea-Ice Surface Temperature (Kelvin ??? degree ??? I don't know) |
|---|
| 65 | tfu , & !: Melting point temperature of sea water |
|---|
| 66 | hsnif , & !: Snow thickness |
|---|
| 67 | hicif , & !: Ice thickness |
|---|
| 68 | hicifp , & !: Ice production/melting |
|---|
| 69 | frld , & !: Leads fraction = 1-a/totalarea |
|---|
| 70 | phicif , & !: ice thickness at previous time |
|---|
| 71 | pfrld , & !: Leads fraction at previous time |
|---|
| 72 | qstoif , & !: Energy stored in the brine pockets |
|---|
| 73 | fbif , & !: Heat flux at the ice base |
|---|
| 74 | rdmsnif, & !: Variation of snow mass |
|---|
| 75 | rdmicif, & !: Variation of ice mass |
|---|
| 76 | qldif , & !: heat balance of the lead (or of the open ocean) |
|---|
| 77 | qcmif , & !: Energy needed to bring the ocean surface layer until its freezing |
|---|
| 78 | fdtcn , & !: net downward heat flux from the ice to the ocean |
|---|
| 79 | qdtcn , & !: energy from the ice to the ocean |
|---|
| 80 | ! ! point (at a factor 2) |
|---|
| 81 | thcm , & !: part of the solar energy used in the lead heat budget |
|---|
| 82 | fstric , & !: Solar flux transmitted trough the ice |
|---|
| 83 | ffltbif, & !: Array linked with the max heat contained in brine pockets (?) |
|---|
| 84 | fscmbq , & !: Linked with the solar flux below the ice (?) |
|---|
| 85 | fsbbq , & !: Also linked with the solar flux below the ice (?) |
|---|
| 86 | qfvbq , & !: Array used to store energy in case of toral lateral ablation (?) |
|---|
| 87 | dmgwi !: Variation of the mass of snow ice |
|---|
| 88 | |
|---|
| 89 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & !: |
|---|
| 90 | albege , & !: Albedo of the snow or ice (only for outputs) |
|---|
| 91 | albecn , & !: Albedo of the ocean (only for outputs) |
|---|
| 92 | tauc , & !: Cloud optical depth |
|---|
| 93 | sdvt !: u*^2/(Stress/density) |
|---|
| 94 | |
|---|
| 95 | |
|---|
| 96 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & !: |
|---|
| 97 | u_ice, v_ice, & !: two components of the ice velocity (m/s) |
|---|
| 98 | tio_u, tio_v !: two components of the ice-ocean stress (N/m2) |
|---|
| 99 | |
|---|
| 100 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpsmax) :: & !: |
|---|
| 101 | scal0 !: ??? |
|---|
| 102 | |
|---|
| 103 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jplayersp1) :: & !: |
|---|
| 104 | tbif !: Temperature inside the ice/snow layer |
|---|
| 105 | |
|---|
| 106 | REAL(wp), DIMENSION(jpi,jpj,0:jpkmax+1) :: & !: |
|---|
| 107 | reslum !: Relative absorption of solar radiation in each ocean level |
|---|
| 108 | |
|---|
| 109 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & !: |
|---|
| 110 | sxice, syice, sxxice, syyice, sxyice, & !: moments for advection |
|---|
| 111 | sxsn, sysn, sxxsn, syysn, sxysn, & !: |
|---|
| 112 | sxa, sya, sxxa, syya, sxya, & !: |
|---|
| 113 | sxc0, syc0, sxxc0, syyc0, sxyc0, & !: |
|---|
| 114 | sxc1, syc1, sxxc1, syyc1, sxyc1, & !: |
|---|
| 115 | sxc2, syc2, sxxc2, syyc2, sxyc2, & !: |
|---|
| 116 | sxst, syst, sxxst, syyst, sxyst !: |
|---|
| 117 | |
|---|
| 118 | #else |
|---|
| 119 | !!---------------------------------------------------------------------- |
|---|
| 120 | !! Default option Empty module NO LIM sea-ice model |
|---|
| 121 | !!---------------------------------------------------------------------- |
|---|
| 122 | #endif |
|---|
| 123 | |
|---|
| 124 | !!====================================================================== |
|---|
| 125 | END MODULE ice |
|---|
