1 | MODULE phycst |
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2 | !!====================================================================== |
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3 | !! *** MODULE phycst *** |
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4 | !! Definition of of both ocean and ice parameters used in the code |
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5 | !!===================================================================== |
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6 | !! History : OPA ! 1990-10 (C. Levy - G. Madec) Original code |
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7 | !! 8.1 ! 1991-11 (G. Madec, M. Imbard) cosmetic changes |
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8 | !! NEMO 1.0 ! 2002-08 (G. Madec, C. Ethe) F90, add ice constants |
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9 | !! - ! 2006-08 (G. Madec) style |
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10 | !! 3.2 ! 2006-08 (S. Masson, G. Madec) suppress useless variables + style |
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11 | !!---------------------------------------------------------------------- |
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12 | |
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13 | !!---------------------------------------------------------------------- |
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14 | !! phy_cst : define and print physical constant and domain parameters |
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15 | !!---------------------------------------------------------------------- |
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16 | USE par_oce ! ocean parameters |
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17 | USE in_out_manager ! I/O manager |
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18 | |
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19 | IMPLICIT NONE |
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20 | PRIVATE |
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21 | |
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22 | PUBLIC phy_cst ! routine called by inipar.F90 |
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23 | |
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24 | REAL(wp), PUBLIC :: rpi = 3.141592653589793_wp !: pi |
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25 | REAL(wp), PUBLIC :: rad = 3.141592653589793_wp / 180._wp !: conversion from degre into radian |
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26 | REAL(wp), PUBLIC :: rsmall = 0.5 * EPSILON( 1.e0 ) !: smallest real computer value |
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27 | |
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28 | REAL(wp), PUBLIC :: rday = 24.*60.*60. !: day (s) |
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29 | REAL(wp), PUBLIC :: rsiyea !: sideral year (s) |
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30 | REAL(wp), PUBLIC :: rsiday !: sideral day (s) |
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31 | REAL(wp), PUBLIC :: raamo = 12._wp !: number of months in one year |
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32 | REAL(wp), PUBLIC :: rjjhh = 24._wp !: number of hours in one day |
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33 | REAL(wp), PUBLIC :: rhhmm = 60._wp !: number of minutes in one hour |
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34 | REAL(wp), PUBLIC :: rmmss = 60._wp !: number of seconds in one minute |
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35 | !! REAL(wp), PUBLIC :: omega = 7.292115083046061e-5_wp , & !: change the last digit! |
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36 | REAL(wp), PUBLIC :: omega !: earth rotation parameter |
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37 | REAL(wp), PUBLIC :: ra = 6371229._wp !: earth radius (meter) |
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38 | REAL(wp), PUBLIC :: grav = 9.80665_wp !: gravity (m/s2) |
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39 | |
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40 | REAL(wp), PUBLIC :: rtt = 273.16_wp !: triple point of temperature (Kelvin) |
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41 | REAL(wp), PUBLIC :: rt0 = 273.15_wp !: freezing point of water (Kelvin) |
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42 | #if defined key_lim3 |
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43 | REAL(wp), PUBLIC :: rt0_snow = 273.16_wp !: melting point of snow (Kelvin) |
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44 | REAL(wp), PUBLIC :: rt0_ice = 273.16_wp !: melting point of ice (Kelvin) |
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45 | #else |
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46 | REAL(wp), PUBLIC :: rt0_snow = 273.15_wp !: melting point of snow (Kelvin) |
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47 | REAL(wp), PUBLIC :: rt0_ice = 273.05_wp !: melting point of ice (Kelvin) |
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48 | #endif |
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49 | |
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50 | REAL(wp), PUBLIC :: rau0 = 1035._wp !: reference volumic mass (density) (kg/m3) |
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51 | REAL(wp), PUBLIC :: rau0r !: reference specific volume (m3/kg) |
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52 | REAL(wp), PUBLIC :: rcp = 4.e+3_wp !: ocean specific heat |
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53 | REAL(wp), PUBLIC :: ro0cpr !: = 1. / ( rau0 * rcp ) |
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54 | |
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55 | #if defined key_lim3 |
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56 | REAL(wp), PUBLIC :: rcdsn = 0.31_wp !: thermal conductivity of snow |
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57 | REAL(wp), PUBLIC :: rcdic = 2.034396_wp !: thermal conductivity of fresh ice |
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58 | REAL(wp), PUBLIC :: cpic = 2067.0 !: specific heat of sea ice |
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59 | REAL(wp), PUBLIC :: lsub = 2.834e+6 !: pure ice latent heat of sublimation (J.kg-1) |
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60 | REAL(wp), PUBLIC :: lfus = 0.334e+6 !: latent heat of fusion of fresh ice (J.kg-1) |
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61 | REAL(wp), PUBLIC :: rhoic = 917._wp !: volumic mass of sea ice (kg/m3) |
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62 | REAL(wp), PUBLIC :: tmut = 0.054 !: decrease of seawater meltpoint with salinity |
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63 | #else |
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64 | REAL(wp), PUBLIC :: rcdsn = 0.22_wp !: conductivity of the snow |
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65 | REAL(wp), PUBLIC :: rcdic = 2.034396_wp !: conductivity of the ice |
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66 | REAL(wp), PUBLIC :: rcpsn = 6.9069e+5_wp !: density times specific heat for snow |
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67 | REAL(wp), PUBLIC :: rcpic = 1.8837e+6_wp !: volumetric latent heat fusion of sea ice |
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68 | REAL(wp), PUBLIC :: lfus = 0.3337e+6 !: latent heat of fusion of fresh ice (J.kg-1) |
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69 | REAL(wp), PUBLIC :: xlsn = 110.121e+6_wp !: volumetric latent heat fusion of snow |
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70 | REAL(wp), PUBLIC :: xlic = 300.33e+6_wp !: volumetric latent heat fusion of ice |
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71 | REAL(wp), PUBLIC :: xsn = 2.8e+6 !: latent heat of sublimation of snow |
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72 | REAL(wp), PUBLIC :: rhoic = 900._wp !: volumic mass of sea ice (kg/m3) |
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73 | #endif |
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74 | REAL(wp), PUBLIC :: rhosn = 330._wp !: volumic mass of snow (kg/m3) |
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75 | REAL(wp), PUBLIC :: emic = 0.97_wp !: emissivity of snow or ice |
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76 | REAL(wp), PUBLIC :: sice = 6.0_wp !: reference salinity of ice (psu) |
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77 | REAL(wp), PUBLIC :: soce = 34.7_wp !: reference salinity of sea (psu) |
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78 | REAL(wp), PUBLIC :: cevap = 2.5e+6_wp !: latent heat of evaporation (water) |
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79 | REAL(wp), PUBLIC :: srgamma = 0.9_wp !: correction factor for solar radiation (Oberhuber, 1974) |
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80 | REAL(wp), PUBLIC :: vkarmn = 0.4_wp !: von Karman constant |
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81 | REAL(wp), PUBLIC :: stefan = 5.67e-8_wp !: Stefan-Boltzmann constant |
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82 | !!---------------------------------------------------------------------- |
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83 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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84 | !! $Id$ |
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85 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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86 | !!---------------------------------------------------------------------- |
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87 | |
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88 | CONTAINS |
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89 | |
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90 | SUBROUTINE phy_cst |
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91 | !!---------------------------------------------------------------------- |
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92 | !! *** ROUTINE phy_cst *** |
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93 | !! |
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94 | !! ** Purpose : Print model parameters and set and print the constants |
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95 | !!---------------------------------------------------------------------- |
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96 | CHARACTER (len=64) :: cform = "(A12, 3(A13, I7) )" |
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97 | !!---------------------------------------------------------------------- |
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98 | |
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99 | ! ! Define additional parameters |
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100 | rsiyea = 365.25 * rday * 2. * rpi / 6.283076 |
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101 | rsiday = rday / ( 1. + rday / rsiyea ) |
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102 | omega = 2. * rpi / rsiday |
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103 | |
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104 | rau0r = 1. / rau0 |
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105 | ro0cpr = 1. / ( rau0 * rcp ) |
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106 | |
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107 | |
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108 | IF(lwp) THEN ! control print |
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109 | WRITE(numout,*) |
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110 | WRITE(numout,*) ' phy_cst : initialization of ocean parameters and constants' |
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111 | WRITE(numout,*) ' ~~~~~~~' |
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112 | WRITE(numout,*) ' Domain info' |
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113 | WRITE(numout,*) ' dimension of model' |
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114 | WRITE(numout,*) ' Local domain Global domain Data domain ' |
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115 | WRITE(numout,cform) ' ',' jpi : ', jpi, ' jpiglo : ', jpiglo, ' jpidta : ', jpidta |
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116 | WRITE(numout,cform) ' ',' jpj : ', jpj, ' jpjglo : ', jpjglo, ' jpjdta : ', jpjdta |
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117 | WRITE(numout,cform) ' ',' jpk : ', jpk, ' jpk : ', jpk , ' jpkdta : ', jpkdta |
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118 | WRITE(numout,*) ' ',' jpij : ', jpij |
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119 | WRITE(numout,*) ' mpp local domain info (mpp)' |
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120 | WRITE(numout,*) ' jpni : ', jpni, ' jpreci : ', jpreci |
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121 | WRITE(numout,*) ' jpnj : ', jpnj, ' jprecj : ', jprecj |
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122 | WRITE(numout,*) ' jpnij : ', jpnij |
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123 | WRITE(numout,*) ' lateral domain boundary condition type : jperio = ', jperio |
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124 | WRITE(numout,*) |
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125 | WRITE(numout,*) ' Constants' |
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126 | WRITE(numout,*) |
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127 | WRITE(numout,*) ' mathematical constant rpi = ', rpi |
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128 | WRITE(numout,*) ' day rday = ', rday, ' s' |
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129 | WRITE(numout,*) ' sideral year rsiyea = ', rsiyea, ' s' |
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130 | WRITE(numout,*) ' sideral day rsiday = ', rsiday, ' s' |
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131 | WRITE(numout,*) ' omega omega = ', omega, ' s-1' |
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132 | WRITE(numout,*) |
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133 | WRITE(numout,*) ' nb of months per year raamo = ', raamo, ' months' |
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134 | WRITE(numout,*) ' nb of hours per day rjjhh = ', rjjhh, ' hours' |
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135 | WRITE(numout,*) ' nb of minutes per hour rhhmm = ', rhhmm, ' mn' |
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136 | WRITE(numout,*) ' nb of seconds per minute rmmss = ', rmmss, ' s' |
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137 | WRITE(numout,*) |
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138 | WRITE(numout,*) ' earth radius ra = ', ra, ' m' |
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139 | WRITE(numout,*) ' gravity grav = ', grav , ' m/s^2' |
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140 | WRITE(numout,*) |
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141 | WRITE(numout,*) ' triple point of temperature rtt = ', rtt , ' K' |
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142 | WRITE(numout,*) ' freezing point of water rt0 = ', rt0 , ' K' |
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143 | WRITE(numout,*) ' melting point of snow rt0_snow = ', rt0_snow, ' K' |
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144 | WRITE(numout,*) ' melting point of ice rt0_ice = ', rt0_ice , ' K' |
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145 | WRITE(numout,*) |
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146 | WRITE(numout,*) ' ocean reference volumic mass rau0 = ', rau0 , ' kg/m^3' |
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147 | WRITE(numout,*) ' ocean reference specific volume rau0r = ', rau0r, ' m^3/Kg' |
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148 | WRITE(numout,*) ' ocean specific heat rcp = ', rcp |
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149 | WRITE(numout,*) ' 1. / ( rau0 * rcp ) = ro0cpr = ', ro0cpr |
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150 | WRITE(numout,*) |
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151 | WRITE(numout,*) ' thermal conductivity of the snow = ', rcdsn , ' J/s/m/K' |
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152 | WRITE(numout,*) ' thermal conductivity of the ice = ', rcdic , ' J/s/m/K' |
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153 | #if defined key_lim3 |
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154 | WRITE(numout,*) ' fresh ice specific heat = ', cpic , ' J/kg/K' |
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155 | WRITE(numout,*) ' latent heat of fusion of fresh ice / snow = ', lfus , ' J/kg' |
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156 | WRITE(numout,*) ' latent heat of subl. of fresh ice / snow = ', lsub , ' J/kg' |
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157 | #else |
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158 | WRITE(numout,*) ' density times specific heat for snow = ', rcpsn , ' J/m^3/K' |
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159 | WRITE(numout,*) ' density times specific heat for ice = ', rcpic , ' J/m^3/K' |
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160 | WRITE(numout,*) ' volumetric latent heat fusion of sea ice = ', xlic , ' J/m' |
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161 | WRITE(numout,*) ' volumetric latent heat fusion of snow = ', xlsn , ' J/m' |
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162 | WRITE(numout,*) ' latent heat of sublimation of snow = ', xsn , ' J/kg' |
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163 | #endif |
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164 | WRITE(numout,*) ' density of sea ice = ', rhoic , ' kg/m^3' |
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165 | WRITE(numout,*) ' density of snow = ', rhosn , ' kg/m^3' |
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166 | WRITE(numout,*) ' emissivity of snow or ice = ', emic |
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167 | WRITE(numout,*) ' salinity of ice = ', sice , ' psu' |
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168 | WRITE(numout,*) ' salinity of sea = ', soce , ' psu' |
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169 | WRITE(numout,*) ' latent heat of evaporation (water) = ', cevap , ' J/m^3' |
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170 | WRITE(numout,*) ' correction factor for solar radiation = ', srgamma |
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171 | WRITE(numout,*) ' von Karman constant = ', vkarmn |
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172 | WRITE(numout,*) ' Stefan-Boltzmann constant = ', stefan , ' J/s/m^2/K^4' |
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173 | WRITE(numout,*) |
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174 | WRITE(numout,*) ' conversion: degre ==> radian rad = ', rad |
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175 | WRITE(numout,*) |
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176 | WRITE(numout,*) ' smallest real computer value rsmall = ', rsmall |
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177 | ENDIF |
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178 | |
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179 | END SUBROUTINE phy_cst |
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180 | |
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181 | !!====================================================================== |
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182 | END MODULE phycst |
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