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 | !! 3.4 ! 2011-11 (C. Harris) minor changes for CICE constants |
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12 | !!---------------------------------------------------------------------- |
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13 | |
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14 | !!---------------------------------------------------------------------- |
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15 | !! phy_cst : define and print physical constant and domain parameters |
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16 | !!---------------------------------------------------------------------- |
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17 | USE par_oce ! ocean parameters |
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18 | USE in_out_manager ! I/O manager |
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19 | |
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20 | IMPLICIT NONE |
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21 | PRIVATE |
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22 | |
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23 | PUBLIC phy_cst ! routine called by inipar.F90 |
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24 | |
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25 | REAL(wp), PUBLIC :: rpi = 3.141592653589793_wp !: pi |
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26 | REAL(wp), PUBLIC :: rad = 3.141592653589793_wp / 180._wp !: conversion from degre into radian |
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27 | REAL(wp), PUBLIC :: rsmall = 0.5 * EPSILON( 1.e0 ) !: smallest real computer value |
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28 | |
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29 | REAL(wp), PUBLIC :: rday = 24.*60.*60. !: day [s] |
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30 | REAL(wp), PUBLIC :: rsiyea !: sideral year [s] |
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31 | REAL(wp), PUBLIC :: rsiday !: sideral day [s] |
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32 | REAL(wp), PUBLIC :: raamo = 12._wp !: number of months in one year |
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33 | REAL(wp), PUBLIC :: rjjhh = 24._wp !: number of hours in one day |
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34 | REAL(wp), PUBLIC :: rhhmm = 60._wp !: number of minutes in one hour |
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35 | REAL(wp), PUBLIC :: rmmss = 60._wp !: number of seconds in one minute |
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36 | REAL(wp), PUBLIC :: omega !: earth rotation parameter [s-1] |
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37 | REAL(wp), PUBLIC :: ra = 6371229._wp !: earth radius [m] |
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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 fresh water [Kelvin] |
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42 | |
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43 | |
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44 | |
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45 | |
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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 | |
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49 | REAL(wp), PUBLIC :: rau0 !: volumic mass of reference [kg/m3] |
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50 | REAL(wp), PUBLIC :: r1_rau0 !: = 1. / rau0 [m3/kg] |
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51 | REAL(wp), PUBLIC :: rcp !: ocean specific heat [J/Kelvin] |
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52 | REAL(wp), PUBLIC :: r1_rcp !: = 1. / rcp [Kelvin/J] |
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53 | REAL(wp), PUBLIC :: rau0_rcp !: = rau0 * rcp |
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54 | REAL(wp), PUBLIC :: r1_rau0_rcp !: = 1. / ( rau0 * rcp ) |
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55 | |
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56 | REAL(wp), PUBLIC :: rhosn = 330._wp !: volumic mass of snow [kg/m3] |
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57 | REAL(wp), PUBLIC :: emic = 0.97_wp !: emissivity of snow or ice |
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58 | REAL(wp), PUBLIC :: sice = 6.0_wp !: salinity of ice [psu] |
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59 | REAL(wp), PUBLIC :: soce = 34.7_wp !: salinity of sea [psu] |
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60 | REAL(wp), PUBLIC :: cevap = 2.5e+6_wp !: latent heat of evaporation (water) |
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61 | REAL(wp), PUBLIC :: srgamma = 0.9_wp !: correction factor for solar radiation (Oberhuber, 1974) |
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62 | REAL(wp), PUBLIC :: vkarmn = 0.4_wp !: von Karman constant |
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63 | REAL(wp), PUBLIC :: stefan = 5.67e-8_wp !: Stefan-Boltzmann constant |
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64 | |
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65 | REAL(wp), PUBLIC :: rhoic = 900._wp !: volumic mass of sea ice [kg/m3] |
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66 | REAL(wp), PUBLIC :: rcdic = 2.034396_wp !: conductivity of the ice [W/m/K] |
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67 | REAL(wp), PUBLIC :: rcpic = 1.8837e+6_wp !: volumetric specific heat for ice [J/m3/K] |
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68 | REAL(wp), PUBLIC :: cpic !: = rcpic / rhoic (specific heat for ice) [J/Kg/K] |
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69 | REAL(wp), PUBLIC :: rcdsn = 0.22_wp !: conductivity of the snow [W/m/K] |
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70 | REAL(wp), PUBLIC :: rcpsn = 6.9069e+5_wp !: volumetric specific heat for snow [J/m3/K] |
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71 | REAL(wp), PUBLIC :: xlsn = 110.121e+6_wp !: volumetric latent heat fusion of snow [J/m3] |
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72 | REAL(wp), PUBLIC :: lfus !: = xlsn / rhosn (latent heat of fusion of fresh ice) [J/Kg] |
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73 | REAL(wp), PUBLIC :: xlic = 300.33e+6_wp !: volumetric latent heat fusion of ice [J/m3] |
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74 | REAL(wp), PUBLIC :: xsn = 2.8e+6_wp !: volumetric latent heat of sublimation of snow [J/m3] |
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75 | !!---------------------------------------------------------------------- |
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76 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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77 | !! $Id$ |
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78 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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79 | !!---------------------------------------------------------------------- |
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80 | |
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81 | CONTAINS |
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82 | |
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83 | SUBROUTINE phy_cst |
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84 | !!---------------------------------------------------------------------- |
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85 | !! *** ROUTINE phy_cst *** |
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86 | !! |
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87 | !! ** Purpose : Print model parameters and set and print the constants |
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88 | !!---------------------------------------------------------------------- |
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89 | CHARACTER (len=64) :: cform = "(A12, 3(A13, I7) )" |
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90 | !!---------------------------------------------------------------------- |
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91 | |
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92 | IF(lwp) WRITE(numout,*) |
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93 | IF(lwp) WRITE(numout,*) ' phy_cst : initialization of ocean parameters and constants' |
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94 | IF(lwp) WRITE(numout,*) ' ~~~~~~~' |
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95 | |
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96 | ! Ocean Parameters |
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97 | ! ---------------- |
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98 | IF(lwp) THEN |
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99 | WRITE(numout,*) ' Domain info' |
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100 | WRITE(numout,*) ' dimension of model' |
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101 | WRITE(numout,*) ' Local domain Global domain Data domain ' |
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102 | WRITE(numout,cform) ' ',' jpi : ', jpi, ' jpiglo : ', jpiglo, ' jpidta : ', jpidta |
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103 | WRITE(numout,cform) ' ',' jpj : ', jpj, ' jpjglo : ', jpjglo, ' jpjdta : ', jpjdta |
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104 | WRITE(numout,cform) ' ',' jpk : ', jpk, ' jpk : ', jpk , ' jpkdta : ', jpkdta |
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105 | WRITE(numout,*) ' ',' jpij : ', jpij |
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106 | WRITE(numout,*) ' mpp local domain info (mpp)' |
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107 | WRITE(numout,*) ' jpni : ', jpni, ' jpreci : ', jpreci |
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108 | WRITE(numout,*) ' jpnj : ', jpnj, ' jprecj : ', jprecj |
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109 | WRITE(numout,*) ' jpnij : ', jpnij |
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110 | WRITE(numout,*) ' lateral domain boundary condition type : jperio = ', jperio |
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111 | ENDIF |
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112 | |
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113 | ! Define constants |
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114 | ! ---------------- |
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115 | IF(lwp) WRITE(numout,*) |
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116 | IF(lwp) WRITE(numout,*) ' Constants' |
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117 | |
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118 | IF(lwp) WRITE(numout,*) |
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119 | IF(lwp) WRITE(numout,*) ' mathematical constant rpi = ', rpi |
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120 | |
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121 | rsiyea = 365.25_wp * rday * 2._wp * rpi / 6.283076_wp |
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122 | rsiday = rday / ( 1._wp + rday / rsiyea ) |
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123 | omega = 2._wp * rpi / rsiday |
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124 | IF(lwp) WRITE(numout,*) |
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125 | IF(lwp) WRITE(numout,*) ' day rday = ', rday, ' s' |
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126 | IF(lwp) WRITE(numout,*) ' sideral year rsiyea = ', rsiyea, ' s' |
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127 | IF(lwp) WRITE(numout,*) ' sideral day rsiday = ', rsiday, ' s' |
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128 | IF(lwp) WRITE(numout,*) ' omega omega = ', omega, ' s^-1' |
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129 | |
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130 | IF(lwp) WRITE(numout,*) |
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131 | IF(lwp) WRITE(numout,*) ' nb of months per year raamo = ', raamo, ' months' |
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132 | IF(lwp) WRITE(numout,*) ' nb of hours per day rjjhh = ', rjjhh, ' hours' |
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133 | IF(lwp) WRITE(numout,*) ' nb of minutes per hour rhhmm = ', rhhmm, ' mn' |
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134 | IF(lwp) WRITE(numout,*) ' nb of seconds per minute rmmss = ', rmmss, ' s' |
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135 | |
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136 | IF(lwp) WRITE(numout,*) |
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137 | IF(lwp) WRITE(numout,*) ' earth radius ra = ', ra, ' m' |
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138 | IF(lwp) WRITE(numout,*) ' gravity grav = ', grav , ' m/s^2' |
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139 | |
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140 | IF(lwp) WRITE(numout,*) |
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141 | IF(lwp) WRITE(numout,*) ' triple point of temperature rtt = ', rtt , ' K' |
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142 | IF(lwp) WRITE(numout,*) ' freezing point of water rt0 = ', rt0 , ' K' |
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143 | IF(lwp) WRITE(numout,*) ' melting point of snow rt0_snow = ', rt0_snow, ' K' |
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144 | IF(lwp) WRITE(numout,*) ' melting point of ice rt0_ice = ', rt0_ice , ' K' |
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145 | |
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146 | IF(lwp) WRITE(numout,*) ' reference density and heat capacity now defined in eosbn2.f90' |
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147 | |
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148 | cpic = rcpic / rhoic ! specific heat for ice [J/Kg/K] |
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149 | lfus = xlsn / rhosn ! latent heat of fusion of fresh ice |
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150 | IF(lwp) THEN |
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151 | WRITE(numout,*) |
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152 | WRITE(numout,*) ' thermal conductivity of the snow = ', rcdsn , ' J/s/m/K' |
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153 | WRITE(numout,*) ' thermal conductivity of the ice = ', rcdic , ' J/s/m/K' |
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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,*) ' density times specific heat for snow = ', rcpsn , ' J/m^3/K' |
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157 | WRITE(numout,*) ' density times specific heat for ice = ', rcpic , ' J/m^3/K' |
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158 | WRITE(numout,*) ' volumetric latent heat fusion of sea ice = ', xlic , ' J/m' |
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159 | WRITE(numout,*) ' latent heat of sublimation of snow = ', xsn , ' J/kg' |
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160 | WRITE(numout,*) ' volumetric latent heat fusion of snow = ', xlsn , ' J/m^3' |
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161 | WRITE(numout,*) ' density of sea ice = ', rhoic , ' kg/m^3' |
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162 | WRITE(numout,*) ' density of snow = ', rhosn , ' kg/m^3' |
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163 | WRITE(numout,*) ' emissivity of snow or ice = ', emic |
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164 | WRITE(numout,*) ' salinity of ice = ', sice , ' psu' |
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165 | WRITE(numout,*) ' salinity of sea = ', soce , ' psu' |
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166 | WRITE(numout,*) ' latent heat of evaporation (water) = ', cevap , ' J/m^3' |
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167 | WRITE(numout,*) ' correction factor for solar radiation = ', srgamma |
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168 | WRITE(numout,*) ' von Karman constant = ', vkarmn |
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169 | WRITE(numout,*) ' Stefan-Boltzmann constant = ', stefan , ' J/s/m^2/K^4' |
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170 | WRITE(numout,*) |
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171 | WRITE(numout,*) ' conversion: degre ==> radian rad = ', rad |
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172 | WRITE(numout,*) |
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173 | WRITE(numout,*) ' smallest real computer value rsmall = ', rsmall |
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174 | ENDIF |
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175 | |
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176 | END SUBROUTINE phy_cst |
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177 | |
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178 | !!====================================================================== |
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179 | END MODULE phycst |
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