Changeset 9987 for branches/UKMO/dev_r5518_obs_oper_update_icethick/NEMOGCM/NEMO/TOP_SRC/PISCES/P4Z/p4zche.F90
- Timestamp:
- 2018-07-23T11:33:03+02:00 (6 years ago)
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branches/UKMO/dev_r5518_obs_oper_update_icethick/NEMOGCM/NEMO/TOP_SRC/PISCES/P4Z/p4zche.F90
r7960 r9987 32 32 REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: fekeq ! chemistry of Fe 33 33 REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: chemc ! Solubilities of O2 and CO2 34 REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: chemo2 ! Solubilities of O2 and CO2 34 REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: chemo2 ! Solubilities of O2 and CO2 35 REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: tempis ! In situ temperature 35 36 36 37 REAL(wp), PUBLIC :: atcox = 0.20946 ! units atm … … 39 40 REAL(wp) :: o2atm = 1. / ( 1000. * 0.20946 ) 40 41 41 REAL(wp) :: akcc1 = -171.9065 ! coeff. for apparent solubility equilibrium 42 REAL(wp) :: akcc2 = -0.077993 ! Millero et al. 1995 from Mucci 1983 43 REAL(wp) :: akcc3 = 2839.319 44 REAL(wp) :: akcc4 = 71.595 45 REAL(wp) :: akcc5 = -0.77712 46 REAL(wp) :: akcc6 = 0.00284263 47 REAL(wp) :: akcc7 = 178.34 48 REAL(wp) :: akcc8 = -0.07711 49 REAL(wp) :: akcc9 = 0.0041249 50 51 REAL(wp) :: rgas = 83.143 ! universal gas constants 42 REAL(wp) :: rgas = 83.14472 ! universal gas constants 52 43 REAL(wp) :: oxyco = 1. / 22.4144 ! converts from liters of an ideal gas to moles 53 44 … … 55 46 REAL(wp) :: bor2 = 1. / 10.82 56 47 57 REAL(wp) :: ca0 = -162.8301 ! WEISS & PRICE 1980, units mol/(kg atm)58 REAL(wp) :: ca1 = 218.296859 REAL(wp) :: ca2 = 90.924160 REAL(wp) :: ca3 = -1.4769661 REAL(wp) :: ca4 = 0.02569562 REAL(wp) :: ca5 = -0.02522563 REAL(wp) :: ca6 = 0.004986764 65 REAL(wp) :: c10 = -3670.7 ! Coeff. for 1. dissoc. of carbonic acid (Edmond and Gieskes, 1970)66 REAL(wp) :: c11 = 62.00867 REAL(wp) :: c12 = -9.794468 REAL(wp) :: c13 = 0.011869 REAL(wp) :: c14 = -0.00011670 71 REAL(wp) :: c20 = -1394.7 ! coeff. for 2. dissoc. of carbonic acid (Millero, 1995)72 REAL(wp) :: c21 = -4.77773 REAL(wp) :: c22 = 0.018474 REAL(wp) :: c23 = -0.00011875 76 48 REAL(wp) :: st1 = 0.14 ! constants for calculate concentrations for sulfate 77 49 REAL(wp) :: st2 = 1./96.062 ! (Morris & Riley 1966) 78 REAL(wp) :: ks0 = 141.32879 REAL(wp) :: ks1 = -4276.180 REAL(wp) :: ks2 = -23.09381 REAL(wp) :: ks3 = -13856.82 REAL(wp) :: ks4 = 324.5783 REAL(wp) :: ks5 = -47.98684 REAL(wp) :: ks6 = 35474.85 REAL(wp) :: ks7 = -771.5486 REAL(wp) :: ks8 = 114.72387 REAL(wp) :: ks9 = -2698.88 REAL(wp) :: ks10 = 1776.89 REAL(wp) :: ks11 = 1.90 REAL(wp) :: ks12 = -0.00100591 50 92 51 REAL(wp) :: ft1 = 0.000067 ! constants for calculate concentrations for fluorides 93 52 REAL(wp) :: ft2 = 1./18.9984 ! (Dickson & Riley 1979 ) 94 REAL(wp) :: kf0 = -12.64195 REAL(wp) :: kf1 = 1590.296 REAL(wp) :: kf2 = 1.52597 REAL(wp) :: kf3 = 1.098 REAL(wp) :: kf4 = -0.00100599 100 REAL(wp) :: cb0 = -8966.90 ! Coeff. for 1. dissoc. of boric acid101 REAL(wp) :: cb1 = -2890.53 ! (Dickson and Goyet, 1994)102 REAL(wp) :: cb2 = -77.942103 REAL(wp) :: cb3 = 1.728104 REAL(wp) :: cb4 = -0.0996105 REAL(wp) :: cb5 = 148.0248106 REAL(wp) :: cb6 = 137.1942107 REAL(wp) :: cb7 = 1.62142108 REAL(wp) :: cb8 = -24.4344109 REAL(wp) :: cb9 = -25.085110 REAL(wp) :: cb10 = -0.2474111 REAL(wp) :: cb11 = 0.053105112 113 REAL(wp) :: cw0 = -13847.26 ! Coeff. for dissoc. of water (Dickson and Riley, 1979 )114 REAL(wp) :: cw1 = 148.9652115 REAL(wp) :: cw2 = -23.6521116 REAL(wp) :: cw3 = 118.67117 REAL(wp) :: cw4 = -5.977118 REAL(wp) :: cw5 = 1.0495119 REAL(wp) :: cw6 = -0.01615120 53 121 54 ! ! volumetric solubility constants for o2 in ml/L … … 185 118 REAL(wp) :: ztgg , ztgg2, ztgg3 , ztgg4 , ztgg5 186 119 REAL(wp) :: zpres, ztc , zcl , zcpexp, zoxy , zcpexp2 187 REAL(wp) :: zsqrt, ztr , zlogt , zcek1 188 REAL(wp) :: zis , zis2 , zsal15, zisqrt 120 REAL(wp) :: zsqrt, ztr , zlogt , zcek1, zc1, zplat 121 REAL(wp) :: zis , zis2 , zsal15, zisqrt, za1 , za2 189 122 REAL(wp) :: zckb , zck1 , zck2 , zckw , zak1 , zak2 , zakb , zaksp0, zakw 190 123 REAL(wp) :: zst , zft , zcks , zckf , zaksp1 … … 193 126 IF( nn_timing == 1 ) CALL timing_start('p4z_che') 194 127 ! 128 ! Computations of chemical constants require in situ temperature 129 ! Here a quite simple formulation is used to convert 130 ! potential temperature to in situ temperature. The errors is less than 131 ! 0.04°C relative to an exact computation 132 ! --------------------------------------------------------------------- 133 DO jk = 1, jpk 134 DO jj = 1, jpj 135 DO ji = 1, jpi 136 zpres = fsdept(ji,jj,jk) / 1000. 137 za1 = 0.04 * ( 1.0 + 0.185 * tsn(ji,jj,jk,jp_tem) + 0.035 * (tsn(ji,jj,jk,jp_sal) - 35.0) ) 138 za2 = 0.0075 * ( 1.0 - tsn(ji,jj,jk,jp_tem) / 30.0 ) 139 tempis(ji,jj,jk) = tsn(ji,jj,jk,jp_tem) - za1 * zpres + za2 * zpres**2 140 END DO 141 END DO 142 END DO 143 ! 195 144 ! CHEMICAL CONSTANTS - SURFACE LAYER 196 145 ! ---------------------------------- … … 200 149 DO ji = 1, jpi 201 150 ! ! SET ABSOLUTE TEMPERATURE 202 ztkel = t sn(ji,jj,1,jp_tem) + 273.16151 ztkel = tempis(ji,jj,1) + 273.15 203 152 zt = ztkel * 0.01 204 153 zt2 = zt * zt … … 208 157 ! ! LN(K0) OF SOLUBILITY OF CO2 (EQ. 12, WEISS, 1980) 209 158 ! ! AND FOR THE ATMOSPHERE FOR NON IDEAL GAS 210 zcek1 = ca0 + ca1 / zt + ca2 * zlogt + ca3 * zt2 + zsal * ( ca4 + ca5 * zt + ca6 * zt2 ) 211 ! ! LN(K0) OF SOLUBILITY OF O2 and N2 in ml/L (EQ. 8, GARCIA AND GORDON, 1992) 212 ztgg = LOG( ( 298.15 - tsn(ji,jj,1,jp_tem) ) / ztkel ) ! Set the GORDON & GARCIA scaled temperature 213 ztgg2 = ztgg * ztgg 214 ztgg3 = ztgg2 * ztgg 215 ztgg4 = ztgg3 * ztgg 216 ztgg5 = ztgg4 * ztgg 217 zoxy = ox0 + ox1 * ztgg + ox2 * ztgg2 + ox3 * ztgg3 + ox4 * ztgg4 + ox5 * ztgg5 & 218 + zsal * ( ox6 + ox7 * ztgg + ox8 * ztgg2 + ox9 * ztgg3 ) + ox10 * zsal2 219 159 zcek1 = 9345.17/ztkel - 60.2409 + 23.3585 * LOG(zt) + zsal*(0.023517 - 0.00023656*ztkel & 160 & + 0.0047036e-4*ztkel**2) 220 161 ! ! SET SOLUBILITIES OF O2 AND CO2 221 chemc(ji,jj,1) = EXP( zcek1 ) * 1.e-6 * rhop(ji,jj,1) / 1000. ! mol/(L uatm) 222 chemc(ji,jj,2) = ( EXP( zoxy ) * o2atm ) * oxyco ! mol/(L atm) 162 chemc(ji,jj,1) = EXP( zcek1 ) * 1.e-6 * rhop(ji,jj,1) / 1000. ! mol/(kg uatm) 163 chemc(ji,jj,2) = -1636.75 + 12.0408*ztkel - 0.0327957*ztkel**2 + 0.0000316528*ztkel**3 164 chemc(ji,jj,3) = 57.7 - 0.118*ztkel 223 165 ! 224 166 END DO … … 233 175 !CDIR NOVERRCHK 234 176 DO ji = 1, jpi 235 ztkel = t sn(ji,jj,jk,jp_tem) + 273.16177 ztkel = tempis(ji,jj,jk) + 273.15 236 178 zsal = tsn(ji,jj,jk,jp_sal) + ( 1.- tmask(ji,jj,jk) ) * 35. 237 179 zsal2 = zsal * zsal 238 ztgg = LOG( ( 298.15 - t sn(ji,jj,jk,jp_tem) ) / ztkel ) ! Set the GORDON & GARCIA scaled temperature180 ztgg = LOG( ( 298.15 - tempis(ji,jj,jk) ) / ztkel ) ! Set the GORDON & GARCIA scaled temperature 239 181 ztgg2 = ztgg * ztgg 240 182 ztgg3 = ztgg2 * ztgg … … 259 201 DO ji = 1, jpi 260 202 261 ! SET PRESSION 262 zpres = 1.025e-1 * fsdept(ji,jj,jk) 203 ! SET PRESSION ACCORDING TO SAUNDER (1980) 204 zplat = SIN ( ABS(gphit(ji,jj)*3.141592654/180.) ) 205 zc1 = 5.92E-3 + zplat**2 * 5.25E-3 206 zpres = ((1-zc1)-SQRT(((1-zc1)**2)-(8.84E-6*fsdept(ji,jj,jk)))) / 4.42E-6 207 zpres = zpres / 10.0 263 208 264 209 ! SET ABSOLUTE TEMPERATURE 265 ztkel = t sn(ji,jj,jk,jp_tem) + 273.16210 ztkel = tempis(ji,jj,jk) + 273.15 266 211 zsal = tsn(ji,jj,jk,jp_sal) + ( 1.-tmask(ji,jj,jk) ) * 35. 267 212 zsqrt = SQRT( zsal ) … … 272 217 zis2 = zis * zis 273 218 zisqrt = SQRT( zis ) 274 ztc = t sn(ji,jj,jk,jp_tem) + ( 1.- tmask(ji,jj,jk) ) * 20.219 ztc = tempis(ji,jj,jk) + ( 1.- tmask(ji,jj,jk) ) * 20. 275 220 276 221 ! CHLORINITY (WOOSTER ET AL., 1969) … … 284 229 285 230 ! DISSOCIATION CONSTANT FOR SULFATES on free H scale (Dickson 1990) 286 zcks = EXP( ks1 * ztr + ks0 + ks2 * zlogt & 287 & + ( ks3 * ztr + ks4 + ks5 * zlogt ) * zisqrt & 288 & + ( ks6 * ztr + ks7 + ks8 * zlogt ) * zis & 289 & + ks9 * ztr * zis * zisqrt + ks10 * ztr *zis2 + LOG( ks11 + ks12 *zsal ) ) 231 zcks = EXP(-4276.1 * ztr + 141.328 - 23.093 * zlogt & 232 & + (-13856. * ztr + 324.57 - 47.986 * zlogt) * zisqrt & 233 & + (35474. * ztr - 771.54 + 114.723 * zlogt) * zis & 234 & - 2698. * ztr * zis**1.5 + 1776.* ztr * zis2 & 235 & + LOG(1.0 - 0.001005 * zsal)) 236 ! 237 aphscale(ji,jj,jk) = ( 1. + zst / zcks ) 290 238 291 239 ! DISSOCIATION CONSTANT FOR FLUORIDES on free H scale (Dickson and Riley 79) 292 zckf = EXP( kf1 * ztr + kf0 + kf2 * zisqrt + LOG( kf3 + kf4 * zsal ) ) 240 zckf = EXP( 1590.2*ztr - 12.641 + 1.525*zisqrt & 241 & + LOG(1.0d0 - 0.001005d0*zsal) & 242 & + LOG(1.0d0 + zst/zcks)) 293 243 294 244 ! DISSOCIATION CONSTANT FOR CARBONATE AND BORATE 295 zckb = ( cb0 + cb1 * zsqrt + cb2 * zsal + cb3 * zsal15 + cb4 * zsal * zsal ) * ztr & 296 & + ( cb5 + cb6 * zsqrt + cb7 * zsal ) & 297 & + ( cb8 + cb9 * zsqrt + cb10 * zsal ) * zlogt + cb11 * zsqrt * ztkel & 298 & + LOG( ( 1.+ zst / zcks + zft / zckf ) / ( 1.+ zst / zcks ) ) 299 300 zck1 = c10 * ztr + c11 + c12 * zlogt + c13 * zsal + c14 * zsal * zsal 301 zck2 = c20 * ztr + c21 + c22 * zsal + c23 * zsal**2 245 zckb= (-8966.90 - 2890.53*zsqrt - 77.942*zsal & 246 & + 1.728*zsal15 - 0.0996*zsal*zsal)*ztr & 247 & + (148.0248 + 137.1942*zsqrt + 1.62142*zsal) & 248 & + (-24.4344 - 25.085*zsqrt - 0.2474*zsal) & 249 & * zlogt + 0.053105*zsqrt*ztkel 250 251 252 ! DISSOCIATION COEFFICIENT FOR CARBONATE ACCORDING TO 253 ! MEHRBACH (1973) REFIT BY MILLERO (1995), seawater scale 254 zck1 = -1.0*(3633.86*ztr - 61.2172 + 9.6777*zlogt & 255 - 0.011555*zsal + 0.0001152*zsal*zsal) 256 zck2 = -1.0*(471.78*ztr + 25.9290 - 3.16967*zlogt & 257 - 0.01781*zsal + 0.0001122*zsal*zsal) 302 258 303 259 ! PKW (H2O) (DICKSON AND RILEY, 1979) 304 zckw = cw0 * ztr + cw1 + cw2 * zlogt + ( cw3 * ztr + cw4 + cw5 * zlogt ) * zsqrt + cw6 * zsal 305 260 zckw = -13847.26*ztr + 148.9652 - 23.6521 * zlogt & 261 & + (118.67*ztr - 5.977 + 1.0495 * zlogt) & 262 & * zsqrt - 0.01615 * zsal 306 263 307 264 ! APPARENT SOLUBILITY PRODUCT K'SP OF CALCITE IN SEAWATER 308 265 ! (S=27-43, T=2-25 DEG C) at pres =0 (atmos. pressure) (MUCCI 1983) 309 zaksp0 = akcc1 + akcc2 * ztkel + akcc3 * ztr + akcc4 * LOG10( ztkel ) & 310 & + ( akcc5 + akcc6 * ztkel + akcc7 * ztr ) * zsqrt + akcc8 * zsal + akcc9 * zsal15 266 zaksp0 = -171.9065 -0.077993*ztkel + 2839.319*ztr + 71.595*LOG10( ztkel ) & 267 & + (-0.77712 + 0.00284263*ztkel + 178.34*ztr) * zsqrt & 268 & - 0.07711*zsal + 0.0041249*zsal15 311 269 312 270 ! K1, K2 OF CARBONIC ACID, KB OF BORIC ACID, KW (H2O) (LIT.?) … … 378 336 !! *** ROUTINE p4z_che_alloc *** 379 337 !!---------------------------------------------------------------------- 380 ALLOCATE( sio3eq(jpi,jpj,jpk), fekeq(jpi,jpj,jpk), chemc(jpi,jpj,2), chemo2(jpi,jpj,jpk), STAT=p4z_che_alloc ) 338 ALLOCATE( sio3eq(jpi,jpj,jpk), fekeq(jpi,jpj,jpk), chemc(jpi,jpj,3), chemo2(jpi,jpj,jpk), & 339 & tempis(jpi,jpj,jpk), STAT=p4z_che_alloc ) 381 340 ! 382 341 IF( p4z_che_alloc /= 0 ) CALL ctl_warn('p4z_che_alloc : failed to allocate arrays.') … … 396 355 397 356 !!====================================================================== 398 END MODULE 357 END MODULE p4zche
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