Changeset 11826 for NEMO/branches/2019/dev_r11085_ASINTER-05_Brodeau_Advanced_Bulk/src/OCE/SBC/sbcblk_phy.F90

Timestamp:

2019-10-29T15:11:56+01:00 (4 years ago)

Author:

laurent

Message:

SBCBLK-related physical constants all moved into "sbcblk_phy.F90".

File:

• NEMO/branches/2019/dev_r11085_ASINTER-05_Brodeau_Advanced_Bulk/src/OCE/SBC/sbcblk_phy.F90 (modified) (3 diffs)

NEMO/branches/2019/dev_r11085_ASINTER-05_Brodeau_Advanced_Bulk/src/OCE/SBC/sbcblk_phy.F90

@@ -18 +18 @@
    !!   q_sat         : saturation humidity as a function of SLP and temperature
    !!   q_air_rh      : specific humidity as a function of RH (fraction, not %), t_air and SLP
-   
+
    USE dom_oce        ! ocean space and time domain
    USE phycst         ! physical constants
@@ -24 +24 @@
    IMPLICIT NONE
    PRIVATE
+
+   !!  (mainly removed from sbcblk.F90)
+   REAL(wp), PARAMETER, PUBLIC :: rCp_dry = 1005.0_wp   !: Specic heat of dry air, constant pressure      [J/K/kg]
+   REAL(wp), PARAMETER, PUBLIC :: rCp_vap = 1860.0_wp   !: Specic heat of water vapor, constant pressure  [J/K/kg]
+   REAL(wp), PARAMETER, PUBLIC :: R_dry   = 287.05_wp   !: Specific gas constant for dry air              [J/K/kg]
+   REAL(wp), PARAMETER, PUBLIC :: R_vap   = 461.495_wp  !: Specific gas constant for water vapor          [J/K/kg]
+   REAL(wp), PARAMETER, PUBLIC :: reps0   = R_dry/R_vap !: ratio of gas constant for dry air and water vapor => ~ 0.622
+   REAL(wp), PARAMETER, PUBLIC :: rctv0   = R_vap/R_dry !: for virtual temperature (== (1-eps)/eps) => ~ 0.608
+   REAL(wp), PARAMETER, PUBLIC :: rCp_air = 1000.5_wp   !: specific heat of air (only used for ice fluxes now...)
+   REAL(wp), PARAMETER, PUBLIC :: rCd_ice = 1.4e-3_wp   !: transfer coefficient over ice
+   REAL(wp), PARAMETER, PUBLIC :: albo    = 0.066_wp    !: ocean albedo assumed to be constant
+   !
+   REAL(wp), PARAMETER, PUBLIC :: rho0_a  = 1.2_wp      !: Approx. of density of air                       [kg/m^3]
+   REAL(wp), PARAMETER, PUBLIC :: rho0_w  = 1025._wp    !: Density of sea-water  (ECMWF->1025)             [kg/m^3]
+   REAL(wp), PARAMETER, PUBLIC :: radrw = rho0_a/rho0_w !: Density ratio
+   REAL(wp), PARAMETER, PUBLIC :: sq_radrw = SQRT(rho0_a/rho0_w)
+   REAL(wp), PARAMETER, PUBLIC :: rCp0_w  = 4190._wp    !: Specific heat capacity of seawater (ECMWF 4190) [J/K/kg]
+   REAL(wp), PARAMETER, PUBLIC :: rnu0_w  = 1.e-6_wp    !: kinetic viscosity of water                      [m^2/s]
+   REAL(wp), PARAMETER, PUBLIC :: rk0_w   = 0.6_wp      !: thermal conductivity of water (at 20C)          [W/m/K]
+   !
+   REAL(wp), PARAMETER, PUBLIC :: emiss_w = 1._wp       !: Surface emissivity (black-body long-wave radiation) of sea-water []
+   !                                                    !: Theoretically close to 0.97! Yet, taken equal as 1 to account for
+   !                                                    !: the small fraction of downwelling shortwave reflected at the
+   !                                                    !: surface (Lind & Katsaros, 1986)
+   REAL(wp), PARAMETER, PUBLIC :: rdct_qsat_salt = 0.98_wp  !: reduction factor on specific humidity at saturation (q_sat(T_s)) due to salt
+   REAL(wp), PARAMETER, PUBLIC :: rtt0 = 273.16_wp        !: triple point of temperature    [K]
+   !
+   REAL(wp), PARAMETER, PUBLIC :: rcst_cs = -16._wp*9.80665_wp*rho0_w*rCp0_w*rnu0_w*rnu0_w*rnu0_w/(rk0_w*rk0_w) !: for cool-skin parameterizations... (grav = 9.80665_wp)
+   !                              => see eq.(14) in Fairall et al. 1996   (eq.(6) of Zeng aand Beljaars is WRONG! (typo?)
+
 
    INTERFACE gamma_moist
@@ -508 +538 @@
             zCh = zz0*ptst(ji,jj)/zdt
             zCe = zz0*pqst(ji,jj)/zdq
-            
+
             CALL TURB_FLUXES( pzu, pTs(ji,jj), pqs(ji,jj), pTa(ji,jj), pqa(ji,jj), zCd, zCh, zCe, &
                &              pwnd(ji,jj), pUb(ji,jj), pslp(ji,jj), &
                &              pTau(ji,jj), zQsen, zQlat )
-            
-            zTs2  = pTs(ji,jj)*pTs(ji,jj)            
+
+            zTs2  = pTs(ji,jj)*pTs(ji,jj)
             zQlw  = emiss_w*(prlw(ji,jj) - stefan*zTs2*zTs2) ! Net longwave flux