[13655] | 1 | MODULE sbcblk_algo_ice_lg15 |
---|
| 2 | !!====================================================================== |
---|
| 3 | !! *** MODULE sbcblk_algo_ice_lg15 *** |
---|
| 4 | !! Computes turbulent components of surface fluxes over sea-ice |
---|
| 5 | !! |
---|
| 6 | !! |
---|
| 7 | !! Lüpkes, C., and Gryanik, V. M. ( 2015), A stability‐dependent parametrization |
---|
| 8 | !! of transfer coefficients for momentum and heat over polar sea ice to be used in climate models, |
---|
| 9 | !! J. Geophys. Res. Atmos., 120, 552– 581, doi:10.1002/2014JD022418. |
---|
| 10 | !! |
---|
| 11 | !! => Despite the fact that the sea-ice concentration (frice) must be provided, |
---|
| 12 | !! only transfer coefficients, and air temp. + hum. height adjustement |
---|
| 13 | !! over ice are returned/performed. |
---|
| 14 | !! ==> 'frice' is only here to estimate the form drag caused by sea-ice... |
---|
| 15 | !! |
---|
| 16 | !! Routine turb_ice_lg15 maintained and developed in AeroBulk |
---|
| 17 | !! (https://github.com/brodeau/aerobulk/) |
---|
| 18 | !! |
---|
| 19 | !! Author: Laurent Brodeau, Summer 2020 |
---|
| 20 | !! |
---|
| 21 | !!---------------------------------------------------------------------- |
---|
| 22 | USE par_kind, ONLY: wp |
---|
| 23 | USE par_oce, ONLY: jpi, jpj |
---|
| 24 | USE phycst ! physical constants |
---|
[13719] | 25 | USE sbc_phy ! Catalog of functions for physical/meteorological parameters in the marine boundary layer |
---|
[13655] | 26 | USE sbcblk_algo_ice_cdn |
---|
| 27 | |
---|
| 28 | IMPLICIT NONE |
---|
| 29 | PRIVATE |
---|
| 30 | |
---|
| 31 | PUBLIC :: turb_ice_lg15 |
---|
| 32 | |
---|
| 33 | REAL(wp), PARAMETER :: ralpha_0 = 0.2_wp ! (Eq.12) (ECHAM6 value) |
---|
| 34 | |
---|
| 35 | !! To be namelist parameters in NEMO: |
---|
| 36 | REAL(wp), PARAMETER :: rz0_i_s_0 = 0.69e-3_wp ! Eq. 43 [m] |
---|
| 37 | REAL(wp), PARAMETER :: rz0_i_f_0 = 4.54e-4_wp ! bottom p.562 MIZ [m] |
---|
| 38 | |
---|
| 39 | LOGICAL, PARAMETER :: l_add_form_drag = .TRUE. |
---|
| 40 | LOGICAL, PARAMETER :: l_use_pond_info = .FALSE. |
---|
| 41 | LOGICAL, PARAMETER :: l_dbg_print = .FALSE. |
---|
| 42 | |
---|
| 43 | INTEGER , PARAMETER :: nbit = 8 ! number of itterations |
---|
| 44 | |
---|
| 45 | !!---------------------------------------------------------------------- |
---|
| 46 | CONTAINS |
---|
| 47 | |
---|
| 48 | SUBROUTINE turb_ice_lg15( zt, zu, Ts_i, t_zt, qs_i, q_zt, U_zu, frice, & |
---|
| 49 | & Cd_i, Ch_i, Ce_i, t_zu_i, q_zu_i, & |
---|
| 50 | & CdN, ChN, CeN, xz0, xu_star, xL, xUN10 ) |
---|
| 51 | !!---------------------------------------------------------------------- |
---|
| 52 | !! *** ROUTINE turb_ice_lg15 *** |
---|
| 53 | !! |
---|
| 54 | !! ** Purpose : Computes turbulent transfert coefficients of surface |
---|
| 55 | !! fluxes according to: |
---|
| 56 | !! Lüpkes, C., and Gryanik, V. M. ( 2015), A stability‐dependent |
---|
| 57 | !! parametrization of transfer coefficients for momentum and heat |
---|
| 58 | !! over polar sea ice to be used in climate models, |
---|
| 59 | !! J. Geophys. Res. Atmos., 120, 552– 581, doi:10.1002/2014JD022418. |
---|
| 60 | !! |
---|
| 61 | !! If relevant (zt /= zu), adjust temperature and humidity from height zt to zu |
---|
| 62 | !! Returns the effective bulk wind speed at zu to be used in the bulk formulas |
---|
| 63 | !! |
---|
| 64 | !! INPUT : |
---|
| 65 | !! ------- |
---|
| 66 | !! * zt : height for temperature and spec. hum. of air [m] |
---|
| 67 | !! * zu : height for wind speed (usually 10m) [m] |
---|
| 68 | !! * Ts_i : surface temperature of sea-ice [K] |
---|
| 69 | !! * t_zt : potential air temperature at zt [K] |
---|
| 70 | !! * qs_i : saturation specific humidity at temp. Ts_i over ice [kg/kg] |
---|
| 71 | !! * q_zt : specific humidity of air at zt [kg/kg] |
---|
| 72 | !! * U_zu : scalar wind speed at zu [m/s] |
---|
| 73 | !! * frice : sea-ice concentration (fraction) |
---|
| 74 | !! |
---|
| 75 | !! OUTPUT : |
---|
| 76 | !! -------- |
---|
| 77 | !! * Cd_i : drag coefficient over sea-ice |
---|
| 78 | !! * Ch_i : sensible heat coefficient over sea-ice |
---|
| 79 | !! * Ce_i : sublimation coefficient over sea-ice |
---|
| 80 | !! * t_zu_i : pot. air temp. adjusted at zu over sea-ice [K] |
---|
| 81 | !! * q_zu_i : spec. hum. of air adjusted at zu over sea-ice [kg/kg] |
---|
| 82 | !! |
---|
| 83 | !! OPTIONAL OUTPUT: |
---|
| 84 | !! ---------------- |
---|
| 85 | !! * CdN : neutral-stability drag coefficient |
---|
| 86 | !! * ChN : neutral-stability sensible heat coefficient |
---|
| 87 | !! * CeN : neutral-stability evaporation coefficient |
---|
| 88 | !! * xz0 : return the aerodynamic roughness length (integration constant for wind stress) [m] |
---|
| 89 | !! * xu_star : return u* the friction velocity [m/s] |
---|
| 90 | !! * xL : return the Obukhov length [m] |
---|
| 91 | !! * xUN10 : neutral wind speed at 10m [m/s] |
---|
| 92 | !! |
---|
| 93 | !! ** Author: L. Brodeau, January 2020 / AeroBulk (https://github.com/brodeau/aerobulk/) |
---|
| 94 | !!---------------------------------------------------------------------------------- |
---|
| 95 | REAL(wp), INTENT(in ) :: zt ! height for t_zt and q_zt [m] |
---|
| 96 | REAL(wp), INTENT(in ) :: zu ! height for U_zu [m] |
---|
| 97 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: Ts_i ! ice surface temperature [Kelvin] |
---|
| 98 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: t_zt ! potential air temperature [Kelvin] |
---|
| 99 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: qs_i ! sat. spec. hum. at ice/air interface [kg/kg] |
---|
| 100 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: q_zt ! spec. air humidity at zt [kg/kg] |
---|
| 101 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: U_zu ! relative wind module at zu [m/s] |
---|
| 102 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: frice ! sea-ice concentration (fraction) |
---|
| 103 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj) :: Cd_i ! drag coefficient over sea-ice |
---|
| 104 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj) :: Ch_i ! transfert coefficient for heat over ice |
---|
| 105 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj) :: Ce_i ! transfert coefficient for sublimation over ice |
---|
| 106 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj) :: t_zu_i ! pot. air temp. adjusted at zu [K] |
---|
| 107 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj) :: q_zu_i ! spec. humidity adjusted at zu [kg/kg] |
---|
| 108 | !!---------------------------------------------------------------------------------- |
---|
| 109 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj), OPTIONAL :: CdN |
---|
| 110 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj), OPTIONAL :: ChN |
---|
| 111 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj), OPTIONAL :: CeN |
---|
| 112 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj), OPTIONAL :: xz0 ! Aerodynamic roughness length [m] |
---|
| 113 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj), OPTIONAL :: xu_star ! u*, friction velocity |
---|
| 114 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj), OPTIONAL :: xL ! zeta (zu/L) |
---|
| 115 | REAL(wp), INTENT(out), DIMENSION(jpi,jpj), OPTIONAL :: xUN10 ! Neutral wind at zu |
---|
| 116 | !!---------------------------------------------------------------------------------- |
---|
| 117 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: Ubzu |
---|
| 118 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: xtmp1, xtmp2 ! temporary stuff |
---|
| 119 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: dt_zu, dq_zu |
---|
| 120 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: zz0_s, zz0_f, RiB ! third dimensions (size=2): |
---|
| 121 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: zCdN_s, zChN_s, zCdN_f, zChN_f |
---|
| 122 | !! |
---|
| 123 | INTEGER :: jit |
---|
| 124 | LOGICAL :: l_zt_equal_zu = .FALSE. ! if q and t are given at same height as U |
---|
| 125 | !! |
---|
| 126 | LOGICAL :: lreturn_cdn=.FALSE., lreturn_chn=.FALSE., lreturn_cen=.FALSE. |
---|
| 127 | LOGICAL :: lreturn_z0=.FALSE., lreturn_ustar=.FALSE., lreturn_L=.FALSE., lreturn_UN10=.FALSE. |
---|
| 128 | !! |
---|
| 129 | CHARACTER(len=40), PARAMETER :: crtnm = 'turb_ice_lg15@sbcblk_algo_ice_lg15.f90' |
---|
| 130 | !!---------------------------------------------------------------------------------- |
---|
| 131 | ALLOCATE ( Ubzu(jpi,jpj) ) |
---|
| 132 | ALLOCATE ( xtmp1(jpi,jpj), xtmp2(jpi,jpj) ) |
---|
| 133 | ALLOCATE ( dt_zu(jpi,jpj), dq_zu(jpi,jpj) ) |
---|
| 134 | ALLOCATE ( zz0_s(jpi,jpj), zz0_f(jpi,jpj), RiB(jpi,jpj), & |
---|
| 135 | & zCdN_s(jpi,jpj), zChN_s(jpi,jpj), zCdN_f(jpi,jpj), zChN_f(jpi,jpj) ) |
---|
| 136 | |
---|
| 137 | lreturn_cdn = PRESENT(CdN) |
---|
| 138 | lreturn_chn = PRESENT(ChN) |
---|
| 139 | lreturn_cen = PRESENT(CeN) |
---|
| 140 | lreturn_z0 = PRESENT(xz0) |
---|
| 141 | lreturn_ustar = PRESENT(xu_star) |
---|
| 142 | lreturn_L = PRESENT(xL) |
---|
| 143 | lreturn_UN10 = PRESENT(xUN10) |
---|
| 144 | |
---|
| 145 | l_zt_equal_zu = ( ABS(zu - zt) < 0.01_wp ) |
---|
| 146 | |
---|
| 147 | !! Scalar wind speed cannot be below 0.2 m/s |
---|
| 148 | Ubzu = MAX( U_zu, wspd_thrshld_ice ) |
---|
| 149 | |
---|
| 150 | !! First guess of temperature and humidity at height zu: |
---|
| 151 | t_zu_i = MAX( t_zt , 100._wp ) ! who knows what's given on masked-continental regions... |
---|
| 152 | q_zu_i = MAX( q_zt , 0.1e-6_wp ) ! " |
---|
| 153 | |
---|
| 154 | !! Air-Ice & Air-Sea differences (and we don't want them to be 0!) |
---|
| 155 | dt_zu = t_zu_i - Ts_i ; dt_zu = SIGN( MAX(ABS(dt_zu),1.E-6_wp), dt_zu ) |
---|
| 156 | dq_zu = q_zu_i - qs_i ; dq_zu = SIGN( MAX(ABS(dq_zu),1.E-9_wp), dq_zu ) |
---|
| 157 | |
---|
| 158 | !! Very crude first guess: |
---|
| 159 | Cd_i(:,:) = 1.4e-3_wp |
---|
| 160 | Ch_i(:,:) = 1.4e-3_wp |
---|
| 161 | Ce_i(:,:) = 1.4e-3_wp |
---|
| 162 | |
---|
| 163 | !! For skin drag : |
---|
| 164 | zz0_s(:,:) = rz0_i_s_0 !#LB/RFI! ! Room for improvement. We use the same z0_skin everywhere (= rz0_i_s_0)... |
---|
| 165 | zCdN_s(:,:) = Cd_from_z0( zu, zz0_s(:,:) ) |
---|
| 166 | zChN_s(:,:) = vkarmn2 / ( LOG( zu / zz0_s(:,:) ) * LOG( zu / (ralpha_0*zz0_s(:,:)) ) ) ! (Eq.11,12) [ "" ] |
---|
| 167 | |
---|
| 168 | !! For form drag in MIZ: |
---|
| 169 | zz0_f(:,:) = 0._wp |
---|
| 170 | zCdN_f(:,:) = 0._wp |
---|
| 171 | zChN_f(:,:) = 0._wp |
---|
| 172 | IF ( l_add_form_drag ) THEN |
---|
| 173 | zz0_f(:,:) = rz0_i_f_0 !#LB/RFI! ! Room for improvement. We use the same z0_form everywhere !!! |
---|
| 174 | zCdN_f(:,:) = CdN_f_LG15_light( zu, frice(:,:), zz0_f(:,:) ) |
---|
| 175 | zChN_f(:,:) = zCdN_f(:,:)/( 1._wp + LOG(1._wp/ralpha_0)/vkarmn*SQRT(zCdN_f(:,:)) ) ! (Eq.60,61) [ "" ] |
---|
| 176 | END IF |
---|
| 177 | |
---|
| 178 | !! Some other first guess values, needed to compute wind at zt: |
---|
| 179 | Cd_i(:,:) = zCdN_s(:,:) + zCdN_f(:,:) |
---|
| 180 | Ch_i(:,:) = zChN_s(:,:) + zChN_f(:,:) |
---|
| 181 | RiB(:,:) = Ri_bulk( zt, Ts_i(:,:), t_zt(:,:), qs_i(:,:), q_zt(:,:), Ubzu(:,:) ) ! over ice (index=1) |
---|
| 182 | |
---|
| 183 | |
---|
| 184 | !! ITERATION BLOCK |
---|
| 185 | DO jit = 1, nbit |
---|
| 186 | |
---|
| 187 | IF(l_dbg_print) PRINT *, 'LOLO: LOOP #', INT(jit,1) |
---|
| 188 | IF(l_dbg_print) PRINT *, 'LOLO: theta_zu, Ts_i, Ubzu =', REAL(t_zu_i(:,:),4), REAL(Ts_i(:,:),4), REAL(Ubzu(:,:),4) |
---|
| 189 | IF(l_dbg_print) PRINT *, 'LOLO: q_zu =', REAL(q_zu_i(:,:),4) |
---|
| 190 | IF(l_dbg_print) PRINT *, 'LOLO: CdN_s, zCdN_f =', REAL(zCdN_s(:,:),4), REAL(zCdN_f(:,:),4) |
---|
| 191 | |
---|
| 192 | |
---|
| 193 | !! Bulk Richardson Number |
---|
| 194 | !! ====================== |
---|
| 195 | !! PROBLEM: when computed at z=zu, with adjusted theta and q, it is numerically unstable in some rare events (unstable) |
---|
| 196 | !! => fix: compute RiB at zt, with ajusted wind at zt... => seems to be more stable |
---|
| 197 | IF( .NOT. l_zt_equal_zu ) THEN |
---|
| 198 | ! U_zt = U_zu + u_star/vkarmn*(LOG(zt/zu) + psi_m_coare(zu/L) - psi_m_coare(zt/L)) |
---|
| 199 | xtmp1(:,:) = zCdN_s(:,:) + zCdN_f(:,:) ! total neutral drag coeff! |
---|
| 200 | xtmp2(:,:) = zz0_s(:,:) + zz0_f(:,:) ! total roughness length z0 |
---|
| 201 | xtmp1 = LOG(zt/zu) + f_h_louis( zu, RiB(:,:), xtmp1(:,:), xtmp2(:,:) ) & |
---|
| 202 | & - f_h_louis( zt, RiB(:,:), xtmp1(:,:), xtmp2(:,:) ) |
---|
| 203 | xtmp2(:,:) = MAX( Ubzu(:,:) + (SQRT(Cd_i(:,:))*Ubzu)*xtmp1 , wspd_thrshld_ice ) ! wind at zt ( SQRT(Cd_i(:,:))*Ubzu == u* !) |
---|
| 204 | xtmp2(:,:) = MIN( xtmp2(:,:) , Ubzu(:,:) ) |
---|
| 205 | IF(l_dbg_print) PRINT *, 'LOLO: ADJUSTED WIND AT ZT =', xtmp2 |
---|
| 206 | ELSE |
---|
| 207 | xtmp2(:,:) = Ubzu(:,:) |
---|
| 208 | END IF |
---|
| 209 | RiB(:,:) = Ri_bulk( zt, Ts_i(:,:), t_zt(:,:), qs_i(:,:), q_zt(:,:), xtmp2(:,:) ) ! over ice (index=1) |
---|
| 210 | IF(l_dbg_print) PRINT *, 'LOLO: RiB_zt =', RiB(:,:) |
---|
| 211 | |
---|
| 212 | |
---|
| 213 | ! Momentum and Heat transfer coefficients WITHOUT FORM DRAG / (Eq.6) and (Eq.10): |
---|
| 214 | Cd_i(:,:) = zCdN_s(:,:) * f_m_louis( zu, RiB(:,:), zCdN_s(:,:), zz0_s(:,:) ) ! (Eq.6) |
---|
| 215 | Ch_i(:,:) = zChN_s(:,:) * f_h_louis( zu, RiB(:,:), zCdN_s(:,:), zz0_s(:,:) ) ! (Eq.10) / LOLO: why "zCdN_s" (xtmp1) and not "zChn" ??? |
---|
| 216 | IF(l_dbg_print) PRINT *, 'LOLO: f_m_louis_s =', f_m_louis( zu, RiB(:,:), zCdN_s(:,:), zz0_s(:,:) ) |
---|
| 217 | IF(l_dbg_print) PRINT *, 'LOLO: f_h_louis_s =', f_h_louis( zu, RiB(:,:), zCdN_s(:,:), zz0_s(:,:) ) |
---|
| 218 | IF(l_dbg_print) PRINT *, 'LOLO: Cd / skin only / ice =', REAL(Cd_i(:,:),4) |
---|
| 219 | |
---|
| 220 | |
---|
| 221 | IF ( l_add_form_drag ) THEN |
---|
| 222 | !! Form-drag-related NEUTRAL momentum and Heat transfer coefficients: |
---|
| 223 | !! MIZ: |
---|
| 224 | Cd_i(:,:) = Cd_i(:,:) + zCdN_f(:,:) * f_m_louis( zu, RiB(:,:), zCdN_f(:,:), zz0_f(:,:) ) ! (Eq.6) |
---|
| 225 | Ch_i(:,:) = Ch_i(:,:) + zChN_f(:,:) * f_h_louis( zu, RiB(:,:), zCdN_f(:,:), zz0_f(:,:) ) ! (Eq.10) / LOLO: why "zCdN_f" and not "zChn" ??? |
---|
| 226 | IF(l_dbg_print) PRINT *, 'LOLO: f_m_louis_f =', f_m_louis( zu, RiB(:,:), zCdN_f(:,:), zz0_f(:,:) ) |
---|
| 227 | IF(l_dbg_print) PRINT *, 'LOLO: f_h_louis_f =', f_h_louis( zu, RiB(:,:), zCdN_f(:,:), zz0_f(:,:) ) |
---|
| 228 | |
---|
| 229 | IF(l_dbg_print) PRINT *, 'LOLO: Cd / form only / ice =', REAL(zCdN_f(:,:) * f_m_louis( zu, RiB(:,:), zCdN_f(:,:), zz0_f(:,:) ),4) |
---|
| 230 | |
---|
| 231 | END IF |
---|
| 232 | |
---|
| 233 | IF(l_dbg_print) PRINT *, 'LOLO: Cd, Ch / TOTAL / ice =', REAL(Cd_i(:,:),4), REAL(Ch_i(:,:),4) |
---|
| 234 | |
---|
| 235 | |
---|
| 236 | !! Adjusting temperature and humidity from zt to zu: |
---|
| 237 | IF( .NOT. l_zt_equal_zu ) THEN |
---|
| 238 | |
---|
| 239 | !! Over ice: |
---|
| 240 | xtmp1(:,:) = zCdN_s(:,:) + zCdN_f(:,:) ! total neutral drag coeff! |
---|
| 241 | xtmp2(:,:) = zz0_s(:,:) + zz0_f(:,:) ! total roughness length z0 |
---|
| 242 | xtmp1 = LOG(zt/zu) + f_h_louis( zu, RiB(:,:), xtmp1(:,:), xtmp2(:,:) ) & |
---|
| 243 | & - f_h_louis( zt, RiB(:,:), xtmp1(:,:), xtmp2(:,:) ) |
---|
| 244 | xtmp2 = 1._wp/SQRT(Cd_i(:,:)) |
---|
| 245 | |
---|
| 246 | t_zu_i(:,:) = t_zt - (Ch_i(:,:) * dt_zu(:,:) * xtmp2) / vkarmn * xtmp1 ! t_star = Ch * dt_zu / SQRT(Cd) |
---|
| 247 | q_zu_i(:,:) = q_zt - (Ch_i(:,:) * dq_zu(:,:) * xtmp2) / vkarmn * xtmp1 ! q_star = Ce * dq_zu / SQRT(Cd) |
---|
| 248 | q_zu_i(:,:) = MAX(0._wp, q_zu_i(:,:)) |
---|
| 249 | |
---|
| 250 | dt_zu(:,:) = t_zu_i(:,:) - Ts_i |
---|
| 251 | dq_zu(:,:) = q_zu_i(:,:) - qs_i |
---|
| 252 | |
---|
| 253 | dt_zu = SIGN( MAX(ABS(dt_zu),1.E-6_wp), dt_zu ) |
---|
| 254 | dq_zu = SIGN( MAX(ABS(dq_zu),1.E-9_wp), dq_zu ) |
---|
| 255 | END IF |
---|
| 256 | |
---|
| 257 | IF(l_dbg_print) PRINT *, ''!LOLO |
---|
| 258 | |
---|
| 259 | END DO !DO jit = 1, nbit |
---|
| 260 | |
---|
| 261 | Ce_i(:,:) = Ch_i(:,:) |
---|
| 262 | |
---|
| 263 | IF( lreturn_cdn ) CdN = zCdN_s(:,:)+zCdN_f(:,:) |
---|
| 264 | IF( lreturn_chn ) ChN = zChN_s(:,:)+zChN_f(:,:) |
---|
| 265 | IF( lreturn_cen ) CeN = zChN_s(:,:)+zChN_f(:,:) |
---|
| 266 | |
---|
| 267 | IF( lreturn_z0 ) xz0 = z0_from_Cd( zu, zCdN_s(:,:)+zCdN_f(:,:) ) |
---|
| 268 | |
---|
| 269 | IF( lreturn_ustar ) xu_star = SQRT(Cd_i) * Ubzu |
---|
| 270 | |
---|
| 271 | IF( lreturn_L ) THEN |
---|
| 272 | xtmp1 = SQRT(Cd_i) |
---|
| 273 | xL = 1./One_on_L( t_zu_i, q_zu_i, xtmp1*Ubzu, Ch_i*dt_zu(:,:)/xtmp1, Ce_i*dq_zu(:,:)/xtmp1 ) |
---|
| 274 | END IF |
---|
| 275 | |
---|
| 276 | IF( lreturn_UN10 ) THEN |
---|
| 277 | xtmp1 = zCdN_s(:,:) + zCdN_f(:,:) ! => CdN |
---|
| 278 | xUN10 = SQRT(Cd_i) * Ubzu/vkarmn * LOG( 10._wp / z0_from_Cd(zu, xtmp1) ) |
---|
| 279 | END IF |
---|
| 280 | |
---|
| 281 | DEALLOCATE ( Ubzu ) |
---|
| 282 | DEALLOCATE ( xtmp1, xtmp2 ) |
---|
| 283 | DEALLOCATE ( dt_zu, dq_zu ) |
---|
| 284 | DEALLOCATE ( zz0_s, zz0_f, RiB, zCdN_s, zChN_s, zCdN_f, zChN_f ) |
---|
| 285 | |
---|
| 286 | END SUBROUTINE turb_ice_lg15 |
---|
| 287 | |
---|
| 288 | !!====================================================================== |
---|
| 289 | END MODULE sbcblk_algo_ice_lg15 |
---|