1 | |
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2 | CCC $Header$ |
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3 | CCC TOP 1.0 , LOCEAN-IPSL (2005) |
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4 | C This software is governed by CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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5 | C --------------------------------------------------------------------------- |
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6 | CDIR$ LIST |
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7 | SUBROUTINE p4zche |
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8 | #if defined key_passivetrc && defined key_trc_pisces |
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9 | CCC--------------------------------------------------------------------- |
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10 | CCC |
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11 | CCC ROUTINE p4zche : PISCES MODEL |
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12 | CCC ***************************** |
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13 | CCC |
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14 | CCC PURPOSE. |
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15 | CCC -------- |
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16 | CCC *P4ZCHE* SETS CHEMICAL CONSTANTS |
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17 | CCC |
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18 | CCC |
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19 | CC EXTERNALS. |
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20 | CC ---------- |
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21 | CC rhop |
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22 | CC |
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23 | CC MODIFICATIONS: |
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24 | CC -------------- |
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25 | CC original : 1988 E. Maier-Reimer |
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26 | CC additions : 1998 O. Aumont |
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27 | CC modifications : 1999 C. Le Quere |
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28 | CC modifications : 2004 O. Aumont |
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29 | CC---------------------------------------------------------------------- |
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30 | CC parameters and commons |
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31 | CC ====================== |
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32 | CDIR$ nolist |
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33 | USE oce_trc |
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34 | USE trp_trc |
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35 | USE sms |
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36 | IMPLICIT NONE |
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37 | #include "domzgr_substitute.h90" |
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38 | CDIR$ list |
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39 | CC---------------------------------------------------------------------- |
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40 | CC local declarations |
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41 | CC ================== |
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42 | C |
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43 | INTEGER ji, jj, jk |
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44 | REAL tkel, sal, qtt, zbuf1, zbuf2 |
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45 | REAL pres, tc, cl, cpexp, cek0, oxy, cpexp2 |
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46 | REAL zsqrt, ztr, zlogt, cek1 |
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47 | REAL zqtt, qtt2, sal15, zis, zis2 |
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48 | REAL ckb, ck1, ck2, ckw, ak1, ak2, akb, aksp0, akw |
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49 | C |
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50 | C* 1. CHEMICAL CONSTANTS - SURFACE LAYER |
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51 | C --------------------------------------- |
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52 | C |
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53 | DO jj = 1,jpj |
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54 | DO ji = 1,jpi |
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55 | C |
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56 | C* 1.1 SET ABSOLUTE TEMPERATURE |
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57 | C ------------------------------ |
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58 | C |
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59 | tkel = tn(ji,jj,1)+273.16 |
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60 | qtt = tkel*0.01 |
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61 | qtt2=qtt*qtt |
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62 | sal = sn(ji,jj,1) + (1.-tmask(ji,jj,1))*35. |
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63 | zqtt=log(qtt) |
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64 | C |
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65 | C* 1.2 LN(K0) OF SOLUBILITY OF CO2 (EQ. 12, WEISS, 1980) |
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66 | C AND FOR THE ATMOSPHERE FOR NON IDEAL GAS |
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67 | C ------------------------------------------------------- |
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68 | C |
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69 | cek0 = c00+c01/qtt+c02*zqtt+sal*(c03+c04*qtt+c05*qtt2) |
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70 | cek1 = ca0+ca1/qtt+ca2*zqtt+ca3*qtt2+sal*(ca4 |
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71 | & +ca5*qtt+ca6*qtt2) |
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72 | C |
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73 | C* 1.3 LN(K0) OF SOLUBILITY OF O2 and N2 (EQ. 4, WEISS, 1970) |
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74 | C ------------------------------------------------------------ |
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75 | C |
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76 | oxy = ox0+ox1/qtt+ox2*zqtt+sal*(ox3+ox4*qtt+ox5*qtt2) |
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77 | C |
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78 | C* 1.4 SET SOLUBILITIES OF O2 AND CO2 |
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79 | C ----------------------------------- |
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80 | C |
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81 | chemc(ji,jj,1) = exp(cek0)*1.E-6*rhop(ji,jj,1)/1000. |
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82 | chemc(ji,jj,2) = exp(oxy)*oxyco |
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83 | chemc(ji,jj,3) = exp(cek1)*1.E-6*rhop(ji,jj,1)/1000. |
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84 | C |
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85 | ENDDO |
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86 | END DO |
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87 | C |
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88 | C* 2 CHEMICAL CONSTANTS - DEEP OCEAN |
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89 | C ------------------------------------- |
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90 | C |
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91 | DO jk = 1,jpk |
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92 | DO jj = 1,jpj |
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93 | DO ji = 1,jpi |
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94 | C |
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95 | C* 2.1 SET PRESSION |
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96 | C ----------------- |
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97 | C |
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98 | pres = 1.025e-1*fsdept(ji,jj,jk) |
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99 | C |
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100 | C* 2.2 SET ABSOLUTE TEMPERATURE |
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101 | C ------------------------------ |
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102 | C |
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103 | tkel = tn(ji,jj,jk)+273.16 |
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104 | qtt = tkel*0.01 |
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105 | sal = sn(ji,jj,jk) + (1.-tmask(ji,jj,jk))*35. |
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106 | zsqrt = sqrt(sal) |
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107 | sal15 = zsqrt*sal |
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108 | zlogt = log(tkel) |
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109 | ztr = 1./tkel |
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110 | zis = 19.924*sal/(1000.-1.005*sal) |
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111 | zis2 = zis*zis |
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112 | tc = tn(ji,jj,jk) + (1.-tmask(ji,jj,jk))*20. |
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113 | C |
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114 | C* 2.3 CHLORINITY (WOOSTER ET AL., 1969) |
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115 | C --------------------------------------- |
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116 | C |
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117 | cl = sal*salchl |
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118 | C |
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119 | C* 2.4 DISSOCIATION CONSTANT FOR CARBONATE AND BORATE |
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120 | C ------------------------------------------------------- |
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121 | C |
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122 | ckb = (cb0+cb1*zsqrt+cb2*sal+cb3*sal15+cb4*sal*sal)*ztr |
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123 | & +(cb5+cb6*zsqrt+cb7*sal)+ |
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124 | & (cb8+cb9*zsqrt+cb10*sal)*zlogt+cb11*zsqrt*tkel |
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125 | ck1 = c10*ztr+c11+c12*zlogt+c13*sal+c14*sal**2 |
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126 | ck2 = c20*ztr+c21+c22*sal+c23*sal**2 |
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127 | C |
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128 | C* 2.5 PKW (H2O) (DICKSON AND RILEY, 1979) |
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129 | C ----------------------------------------- |
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130 | C |
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131 | ckw = cw0*ztr+cw1+cw2*zlogt+(cw3*ztr+cw4+cw5*zlogt)* |
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132 | & zsqrt+cw6*sal |
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133 | C |
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134 | C* 2.6 K1, K2 OF CARBONIC ACID, KB OF BORIC ACID, KW (H2O) (LIT.?) |
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135 | C ----------------------------------------------------------------- |
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136 | C |
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137 | ak1 = 10**(ck1) |
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138 | ak2 = 10**(ck2) |
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139 | akb = exp(ckb) |
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140 | akw = exp(ckw) |
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141 | C |
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142 | C*2.7 APPARENT SOLUBILITY PRODUCT K'SP OF CALCITE IN SEAWATER |
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143 | C (S=27-43, T=2-25 DEG C) AT pres =0 (ATMOSPH. PRESSURE) |
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144 | C (INGLE, 1800, EQ. 6) |
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145 | C ------------------------------------------------------------- |
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146 | C |
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147 | aksp0 = 1.E-7*(akcc1+akcc2*sal**(1./3.)+akcc3*log10(sal) |
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148 | & +akcc4*tkel*tkel) |
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149 | C |
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150 | C* 2.8 FORMULA FOR CPEXP AFTER EDMOND AND GIESKES (1970) |
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151 | C (REFERENCE TO CULBERSON AND PYTKOQICZ (1968) AS MADE |
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152 | C IN BROECKER ET AL. (1982) IS INCORRECT; HERE RGAS IS |
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153 | C TAKEN TENFOLD TO CORRECT FOR THE NOTATION OF pres IN |
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154 | C DBAR INSTEAD OF BAR AND THE EXPRESSION FOR CPEXP IS |
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155 | C MULTIPLIED BY LN(10.) TO ALLOW USE OF EXP-FUNCTION |
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156 | C WITH BASIS E IN THE FORMULA FOR AKSPP (CF. EDMOND |
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157 | C AND GIESKES (1970), P. 1285 AND P. 1286 (THE SMALL |
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158 | C FORMULA ON P. 1286 IS RIGHT AND CONSISTENT WITH THE |
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159 | C SIGN IN PARTIAL MOLAR VOLUME CHANGE AS SHOWN ON |
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160 | C P. 1285)) |
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161 | C ----------------------------------------------------------- |
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162 | C |
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163 | cpexp = pres /(rgas*tkel) |
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164 | cpexp2 = pres * pres/(rgas*tkel) |
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165 | C |
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166 | C* 2.9 KB OF BORIC ACID, K1,K2 OF CARBONIC ACID PRESSURE |
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167 | C CORRECTION AFTER CULBERSON AND PYTKOWICZ (1968) |
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168 | C (CF. BROECKER ET AL., 1982) |
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169 | C -------------------------------------------------------- |
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170 | C |
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171 | zbuf1 = -(devk1(3)+devk2(3)*tc+devk3(3)*tc*tc) |
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172 | zbuf2 = 0.5*(devk4(3)+devk5(3)*tc) |
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173 | akb3(ji,jj,jk) = akb*exp(zbuf1*cpexp+zbuf2*cpexp2) |
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174 | |
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175 | zbuf1 = -(devk1(1)+devk2(1)*tc+devk3(1)*tc*tc) |
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176 | zbuf2 = 0.5*(devk4(1)+devk5(1)*tc) |
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177 | ak13(ji,jj,jk) = ak1*exp(zbuf1*cpexp+zbuf2*cpexp2) |
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178 | |
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179 | zbuf1 = -(devk1(2)+devk2(2)*tc+devk3(2)*tc*tc) |
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180 | zbuf2 = 0.5*(devk4(2)+devk5(2)*tc) |
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181 | ak23(ji,jj,jk) = ak2*exp(zbuf1*cpexp+zbuf2*cpexp2) |
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182 | |
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183 | zbuf1 = -(devk1(4)+devk2(4)*tc+devk3(4)*tc*tc) |
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184 | zbuf2 = 0.5*(devk4(4)+devk5(4)*tc) |
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185 | akw3(ji,jj,jk) = akw*exp(zbuf1*cpexp+zbuf2*cpexp2) |
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186 | C |
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187 | C 2.10 APPARENT SOLUBILITY PRODUCT K'SP OF CALCITE (OR ARAGONITE) |
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188 | C AS FUNCTION OF PRESSURE FOLLWING EDMOND AND GIESKES (1970) |
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189 | C (P. 1285) AND BERNER (1976) |
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190 | C ----------------------------------------------------------------- |
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191 | C |
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192 | aksp(ji,jj,jk) = aksp0*exp(cpexp*(devks-devkst*tc)) |
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193 | C |
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194 | C* 2.11 TOTAL BORATE CONCENTR. [MOLES/L] |
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195 | C -------------------------------------- |
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196 | C |
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197 | borat(ji,jj,jk) = bor1*cl*bor2 |
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198 | C |
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199 | C 2.12 Iron and SIO3 saturation concentration from ... |
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200 | C ---------------------------------------------------- |
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201 | C |
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202 | sio3eq(ji,jj,jk)=exp(log(10.)*(6.44-968./tkel))*1E-6 |
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203 | fekeq(ji,jj,jk)=10**(17.27-1565.7/(273.15+tc)) |
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204 | C |
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205 | ENDDO |
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206 | ENDDO |
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207 | END DO |
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208 | C |
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209 | #endif |
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210 | C |
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211 | RETURN |
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212 | END |
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