1 | subroutine soil_settings(nid,ngrid,nsoil,nqsoil,tsurf,tsoil, |
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2 | & qsoil,indextime) |
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3 | |
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4 | ! use netcdf |
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5 | use comsoil_h, only: layer, mlayer, inertiedat, inertiesoil, |
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6 | & volcapa,flux_geo,adsorption_soil, |
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7 | & igcm_h2o_vap_soil,igcm_h2o_ice_soil, |
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8 | & igcm_h2o_vap_ads |
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9 | use iostart, only: inquire_field_ndims, get_var, get_field, |
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10 | & inquire_field, inquire_dimension_length |
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11 | USE comslope_mod, ONLY: nslope |
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12 | implicit none |
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13 | |
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14 | !====================================================================== |
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15 | ! Author: Ehouarn Millour (07/2006) |
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16 | ! |
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17 | ! Purpose: Read and/or initialise soil depths and properties |
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18 | ! |
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19 | ! Modifications: Aug.2010 EM : use NetCDF90 to load variables (enables using |
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20 | ! r4 or r8 restarts independently of having compiled |
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21 | ! the GCM in r4 or r8) |
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22 | ! June 2013 TN : Possibility to read files with a time axis |
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23 | ! |
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24 | ! |
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25 | ! This subroutine reads from a NetCDF file (opened by the caller) |
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26 | ! of "startfi.nc" format. |
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27 | ! The various actions and variable read/initialized are: |
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28 | ! 1. Check out the number of soil layers (in datafile); if it isn't equal |
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29 | ! to nsoil, then some interpolation will be required |
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30 | ! Also check if data in file "startfi.nc" is in older format (ie: |
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31 | ! thermal inertia was depth-independent; and there was no "depth" |
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32 | ! coordinate. |
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33 | ! Read/build layer (and midlayer) depths |
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34 | ! 2. Read volumetric specific heat (or initialise it to default value) |
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35 | ! 3. Read Thermal inertia |
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36 | ! 4. Read soil temperatures |
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37 | ! 5. Interpolate thermal inertia and temperature on the new grid, if |
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38 | ! necessary |
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39 | !====================================================================== |
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40 | |
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41 | !====================================================================== |
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42 | ! arguments |
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43 | ! --------- |
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44 | ! inputs: |
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45 | integer,intent(in) :: nid ! Input Netcdf file ID |
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46 | integer,intent(in) :: ngrid ! # of horizontal grid points |
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47 | integer,intent(in) :: nsoil ! # of soil layers |
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48 | integer,intent(in) :: nqsoil ! # of tracers in the soil |
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49 | real,intent(in) :: tsurf(ngrid,nslope) ! surface temperature [K] |
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50 | integer,intent(in) :: indextime ! position on time axis |
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51 | ! output: |
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52 | real,intent(out) :: tsoil(ngrid,nsoil,nslope) ! soil temperature [K] |
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53 | real,intent(out) :: qsoil(ngrid,nsoil,nqsoil,nslope) ! Tracers in the subsurface [kg/kg] |
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54 | |
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55 | !====================================================================== |
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56 | ! local variables: |
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57 | integer ierr ! status (returned by NetCDF functions) |
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58 | integer nvarid ! ID of NetCDF variable |
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59 | integer dimid ! ID of NetCDF dimension |
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60 | integer dimlen ! length along the "depth" dimension |
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61 | integer ndims ! # of dimensions of read <inertiedat> data |
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62 | integer ig,iloop ! loop counters |
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63 | integer islope |
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64 | |
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65 | integer edges(3),corner(3) ! to read a specific time |
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66 | |
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67 | logical :: olddepthdef=.false. ! flag |
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68 | logical :: interpol=.false. ! flag: true if interpolation will be requiered |
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69 | |
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70 | ! to store "old" values |
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71 | real,dimension(:),allocatable :: surfinertia !surface thermal inertia |
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72 | real,dimension(:),allocatable :: oldmlayer |
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73 | real,dimension(:,:),allocatable :: oldinertiedat |
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74 | real,dimension(:,:,:),allocatable :: oldinertiesoil |
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75 | real,dimension(:,:,:),allocatable :: oldtsoil |
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76 | |
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77 | ! for interpolation |
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78 | real,dimension(:),allocatable :: oldgrid |
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79 | real,dimension(:),allocatable :: oldval |
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80 | real,dimension(:),allocatable :: newval |
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81 | |
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82 | real alpha,lay1 ! coefficients for building layers |
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83 | real xmin,xmax ! to display min and max of a field |
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84 | |
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85 | real,parameter :: default_volcapa=1.e6 |
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86 | |
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87 | logical :: found,ok |
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88 | |
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89 | character (len=30):: txt |
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90 | |
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91 | !====================================================================== |
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92 | |
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93 | ! 1. Depth coordinate |
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94 | ! ------------------- |
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95 | |
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96 | |
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97 | ! 1.1 Start by reading how many layers of soil there are |
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98 | |
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99 | dimlen=inquire_dimension_length("subsurface_layers") |
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100 | |
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101 | if (dimlen.ne.nsoil) then |
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102 | write(*,*)'soil_settings: Interpolation of soil temperature ', |
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103 | & 'and thermal inertia will be required!' |
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104 | ! if dimlen doesn't match nsoil, then interpolation of |
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105 | ! soil temperatures and thermal inertia will be requiered |
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106 | interpol=.true. |
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107 | ! allocate oldmlayer |
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108 | if (.not.allocated(oldmlayer)) then |
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109 | allocate(oldmlayer(dimlen),stat=ierr) |
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110 | if (ierr.ne.0) then |
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111 | write(*,*) 'soil_settings: failed allocation of oldmlayer!' |
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112 | call abort_physic("soil_settings", |
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113 | & "failed oldmlayer allocation",1) |
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114 | endif |
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115 | endif |
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116 | endif |
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117 | |
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118 | ! 1.2 Find out the # of dimensions <inertiedat> was defined as using |
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119 | ! (in ye old days, thermal inertia was only given at the "surface") |
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120 | |
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121 | ndims=inquire_field_ndims("inertiedat") |
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122 | |
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123 | ! 1.3 Read depths values or set olddepthdef flag and values |
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124 | if (ndims.eq.1) then ! we know that there is none |
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125 | write(*,*)'soil_settings: no <soildepth> field expected' |
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126 | write(*,*)'building one mimicking old definitions' |
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127 | olddepthdef=.true. |
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128 | interpol=.true. |
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129 | |
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130 | do iloop=1,dimlen |
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131 | oldmlayer(iloop)=sqrt(887.75/3.14)*((2.**(iloop-0.5))-1.) |
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132 | enddo |
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133 | else ! Look for depth |
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134 | ! read <depth> coordinate |
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135 | if (interpol) then !put values in oldmlayer |
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136 | call get_var("soildepth",oldmlayer,found) |
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137 | if (.not.found) then |
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138 | write(*,*)'soil_settings: Problem while reading <soildepth>' |
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139 | endif |
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140 | else ! put values in mlayer |
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141 | call get_var("soildepth",mlayer,found) |
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142 | if (.not.found) then |
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143 | write(*,*)'soil_settings: Problem while reading <soildepth>' |
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144 | endif |
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145 | endif !of if (interpol) |
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146 | endif !of if (ndims.eq.1) |
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147 | |
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148 | ! 1.4 Build mlayer(), if necessary |
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149 | if (interpol) then |
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150 | ! mlayer(k)=lay1*(1+k^(2.9)*(1-exp(-k/20)), PYM grid |
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151 | lay1=2.e-4 |
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152 | do iloop=0,nsoil-1 |
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153 | mlayer(iloop) = lay1*(1+iloop**2.9*(1-exp(-real(iloop)/20.))) |
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154 | enddo |
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155 | endif |
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156 | |
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157 | ! 1.5 Build layer(); |
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158 | do iloop=1,nsoil-1 |
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159 | layer(iloop)=(mlayer(iloop)+mlayer(iloop-1))/2 |
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160 | enddo |
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161 | layer(nsoil)=2*mlayer(nsoil-1) - mlayer(nsoil-2) |
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162 | |
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163 | ! 2. Volumetric heat capacity (note: it is declared in comsoil_h) |
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164 | ! --------------------------- |
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165 | ! "volcapa" is (so far) 0D and written in "controle" table of startfi file |
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166 | ! volcapa is read or set when "controle" is read (see tabfi.F) |
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167 | ! Just in case, we check here that it is not zero. If it is, we |
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168 | ! set it to "default_volcapa" |
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169 | |
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170 | if (volcapa.le.0.0) then |
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171 | write(*,*)'soil_settings: Warning, volcapa = ',volcapa |
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172 | write(*,*)' That doesn t seem right' |
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173 | write(*,*)' Initializing Volumetric heat capacity to ', |
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174 | & default_volcapa |
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175 | volcapa=default_volcapa |
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176 | endif |
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177 | |
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178 | ! 3. Thermal inertia for present day climate -inertiedat- & the one given by the pem -ineritesoil-(note: it is declared in comsoil_h) |
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179 | ! ------------------ |
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180 | ! Knowing the # of dimensions <inertidat> was defined as using, |
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181 | ! read/build thermal inertia |
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182 | |
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183 | ! 3.1 Present day - inertiedat |
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184 | |
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185 | if (ndims.eq.1) then ! "old 2D-surface" format |
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186 | write(*,*)'soil_settings: Thermal inertia is only given as surfac |
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187 | &e data!' |
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188 | ! Read Surface thermal inertia |
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189 | allocate(surfinertia(ngrid)) |
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190 | ! ierr=nf90_get_var(nid,nvarid,surfinertia) |
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191 | ! if (ierr.NE.nf90_noerr) then |
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192 | ! write(*,*)'soil_settings: Problem while reading <inertiedat>' |
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193 | ! write(*,*)trim(nf90_strerror(ierr)) |
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194 | ! call abort |
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195 | ! endif |
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196 | call get_field("inertiedat",surfinertia,found) |
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197 | if (.not.found) then |
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198 | write(*,*) "soil_settings: Failed loading <inertiedat>" |
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199 | call abort_physic("soil_settings", |
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200 | & "failed loading <inertiedat>",1) |
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201 | endif |
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202 | |
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203 | write(*,*)' => Building soil thermal inertia (using reference sur |
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204 | &face thermal inertia)' |
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205 | do iloop=1,nsoil |
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206 | inertiedat(:,iloop)=surfinertia(:) |
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207 | enddo |
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208 | deallocate(surfinertia) |
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209 | |
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210 | else ! "3D surface+depth" format |
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211 | if (interpol) then ! put values in oldinertiedat |
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212 | if (.not.allocated(oldinertiedat)) then |
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213 | allocate(oldinertiedat(ngrid,dimlen),stat=ierr) |
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214 | if (ierr.ne.0) then |
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215 | write(*,*) 'soil_settings: failed allocation of ', |
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216 | & 'oldinertiedat!' |
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217 | call abort_physic("soil_settings", |
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218 | & "failed allocation of oldinertiedat",1) |
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219 | endif |
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220 | endif ! of if (.not.allocated(oldinertiedat)) |
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221 | |
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222 | call get_field("inertiedat",oldinertiedat,found) |
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223 | if (.not.found) then |
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224 | write(*,*) "soil_settings: Failed loading <inertiedat>" |
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225 | call abort_physic("soil_settings", |
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226 | & "failed loading <inertiedat>",1) |
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227 | endif |
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228 | else ! put values in therm_i |
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229 | call get_field("inertiedat",inertiedat,found) |
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230 | if (.not.found) then |
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231 | write(*,*) "soil_settings: Failed loading <inertiedat>" |
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232 | call abort_physic("soil_settings", |
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233 | & "failed loading <inertiedat>",1) |
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234 | endif |
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235 | endif ! of if (interpol) |
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236 | endif ! of if (ndims.eq.1) |
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237 | |
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238 | ! 3.2 Inertie from the PEM |
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239 | |
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240 | ok=inquire_field("inertiesoil") |
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241 | |
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242 | if (.not.ok) then |
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243 | write(*,*)'soil_settings: Field <inertiesoil> not found!' |
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244 | write(*,*)' => Building <inertiesoil> from surface values'// |
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245 | & ' <inertiedat>' |
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246 | ! Case 1: No interpolation needed, we just copy past inertiedat |
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247 | if(.not.(interpol)) then |
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248 | do islope=1,nslope |
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249 | inertiesoil(:,:,islope)=inertiedat(:,:) |
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250 | enddo |
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251 | else |
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252 | ! Case 2: Interpolation needed: we copy past old value from inertiedat |
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253 | if (.not.allocated(oldinertiesoil)) then |
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254 | allocate(oldinertiesoil(ngrid,dimlen,nslope),stat=ierr) |
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255 | endif |
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256 | do islope=1,nslope |
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257 | oldinertiesoil(:,:,islope)=oldinertiedat(:,:) |
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258 | enddo |
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259 | endif |
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260 | else ! <inertiesoil> found |
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261 | if (interpol) then ! put values in oldinertiesoil |
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262 | if (.not.allocated(oldinertiesoil)) then |
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263 | allocate(oldinertiesoil(ngrid,dimlen,nslope),stat=ierr) |
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264 | if (ierr.ne.0) then |
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265 | write(*,*) 'soil_settings: failed allocation of ', |
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266 | & 'oldinertiesoil!' |
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267 | call abort_physic("soil_settings", |
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268 | & "failed allocation of oldinertiesoil",1) |
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269 | endif |
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270 | endif |
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271 | |
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272 | call get_field("inertiesoil",oldinertiesoil,found) |
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273 | if (.not.found) then |
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274 | write(*,*) "soil_settings: Failed loading <inertiesoil>" |
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275 | call abort_physic("soil_settings", |
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276 | & "failed loading <inertiesoil>",1) |
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277 | endif |
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278 | else ! put values in inertiesoil |
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279 | call get_field("inertiesoil",inertiesoil,found, |
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280 | & timeindex=indextime) |
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281 | if (.not.found) then |
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282 | write(*,*) "soil_settings: Failed loading <inertiesoil>" |
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283 | call abort_physic("soil_settings", |
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284 | & "failed loading <inertiesoil>",1) |
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285 | endif |
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286 | endif ! of if (interpol) |
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287 | endif! of if (.not.ok) |
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288 | |
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289 | |
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290 | |
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291 | ! 4. Read soil temperatures |
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292 | ! ------------------------- |
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293 | |
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294 | ok=inquire_field("tsoil") |
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295 | |
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296 | if (.not.ok) then |
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297 | write(*,*)'soil_settings: Field <tsoil> not found!' |
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298 | write(*,*)' => Building <tsoil> from surface values <tsurf>' |
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299 | ! Case 1: No interpolation needed, we just copy past inertiedat |
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300 | if(.not.(interpol)) then |
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301 | do iloop=1,nsoil |
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302 | do islope=1,nslope |
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303 | tsoil(:,iloop,islope)=tsurf(:,islope) |
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304 | enddo |
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305 | enddo |
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306 | else |
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307 | ! Case 2: Interpolation needed: we copy past old value from inertiedat |
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308 | if (.not.allocated(oldtsoil)) then |
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309 | allocate(oldtsoil(ngrid,dimlen,nslope),stat=ierr) |
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310 | endif |
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311 | do iloop=1,dimlen |
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312 | do islope=1,nslope |
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313 | oldtsoil(:,iloop,islope)=tsurf(:,islope) |
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314 | enddo |
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315 | enddo |
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316 | endif |
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317 | else ! <tsoil> found |
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318 | if (interpol) then ! put values in oldtsoil |
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319 | if (.not.allocated(oldtsoil)) then |
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320 | allocate(oldtsoil(ngrid,dimlen,nslope),stat=ierr) |
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321 | if (ierr.ne.0) then |
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322 | write(*,*) 'soil_settings: failed allocation of ', |
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323 | & 'oldtsoil!' |
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324 | call abort_physic("soil_settings", |
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325 | & "failed allocation of oldtsoil",1) |
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326 | endif |
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327 | endif |
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328 | call get_field("tsoil",oldtsoil,found) |
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329 | if (.not.found) then |
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330 | write(*,*) "soil_settings: Failed loading <tsoil>" |
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331 | call abort_physic("soil_settings", |
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332 | & "failed loading <tsoil>",1) |
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333 | endif |
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334 | else ! put values in tsoil |
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335 | call get_field("tsoil",tsoil,found,timeindex=indextime) |
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336 | if (.not.found) then |
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337 | write(*,*) "soil_settings: Failed loading <tsoil>" |
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338 | call abort_physic("soil_settings", |
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339 | & "failed loading <tsoil>",1) |
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340 | endif |
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341 | endif ! of if (interpol) |
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342 | endif! of if (.not.ok) |
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343 | |
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344 | |
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345 | ! 5. If necessary, interpolate soil temperatures and thermal inertias |
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346 | ! ------------------------------------------------------------------- |
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347 | |
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348 | if (olddepthdef) then |
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349 | ! tsoil needs to be interpolated, but not therm_i |
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350 | allocate(oldgrid(dimlen+1)) |
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351 | allocate(oldval(dimlen+1)) |
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352 | allocate(newval(nsoil)) |
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353 | do ig=1,ngrid |
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354 | ! copy values |
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355 | do islope=1,nslope |
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356 | oldval(1)=tsurf(ig,islope) |
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357 | oldval(2:dimlen+1)=oldtsoil(ig,1:dimlen,islope) |
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358 | ! build vertical coordinate |
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359 | oldgrid(1)=0. ! ground |
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360 | oldgrid(2:dimlen+1)=oldmlayer(1:dimlen)* |
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361 | & (inertiesoil(ig,1,islope)/volcapa) |
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362 | ! interpolate |
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363 | call interp_line(oldgrid,oldval,dimlen+1,mlayer,newval,nsoil) |
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364 | ! copy result in tsoil |
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365 | tsoil(ig,:,islope)=newval(:) |
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366 | enddo |
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367 | enddo |
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368 | ! cleanup |
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369 | deallocate(oldgrid) |
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370 | deallocate(oldval) |
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371 | deallocate(newval) |
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372 | interpol=.false. ! no need for interpolation any more |
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373 | endif !of if (olddepthdef) |
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374 | if (interpol) then |
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375 | write(*,*)'soil_settings: Vertical interpolation along new grid' |
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376 | ! interpolate soil temperatures and thermal inertias |
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377 | if (.not.allocated(oldgrid)) then |
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378 | allocate(oldgrid(dimlen+1)) |
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379 | allocate(oldval(dimlen+1)) |
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380 | allocate(newval(nsoil)) |
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381 | endif |
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382 | |
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383 | ! thermal inertia - present day (inertiedat) |
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384 | do ig=1,ngrid |
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385 | ! copy data |
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386 | oldval(1:dimlen)=oldinertiedat(ig,1:dimlen) |
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387 | ! interpolate |
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388 | call interp_line(oldmlayer,oldval,dimlen,mlayer,newval,nsoil) |
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389 | !copy result in inertiedat |
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390 | inertiedat(ig,:)=newval(:) |
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391 | ! thermal inertia - general case with PEM (inertie soil) |
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392 | do islope=1,nslope |
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393 | ! copy data |
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394 | oldval(1:dimlen)=oldinertiesoil(ig,1:dimlen,islope) |
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395 | ! interpolate |
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396 | call interp_line(oldmlayer,oldval,dimlen,mlayer,newval,nsoil) |
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397 | !copy result in inertiedat |
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398 | inertiesoil(ig,:,islope)=newval(:) |
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399 | enddo |
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400 | enddo ! ig |
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401 | |
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402 | ! soil temperature |
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403 | ! vertical coordinate |
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404 | oldgrid(1)=0.0 |
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405 | oldgrid(2:dimlen+1)=oldmlayer(1:dimlen) |
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406 | do ig=1,ngrid |
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407 | do islope=1,nslope |
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408 | ! data |
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409 | oldval(1)=tsurf(ig,islope) |
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410 | oldval(2:dimlen+1)=oldtsoil(ig,1:dimlen,islope) |
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411 | ! interpolate |
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412 | call interp_line(oldgrid,oldval,dimlen+1,mlayer,newval,nsoil) |
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413 | ! copy result in inertiedat |
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414 | tsoil(ig,:,islope)=newval(:) |
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415 | enddo |
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416 | enddo |
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417 | |
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418 | !cleanup |
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419 | deallocate(oldgrid) |
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420 | deallocate(oldval) |
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421 | deallocate(newval) |
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422 | deallocate(oldinertiedat) |
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423 | deallocate(oldinertiesoil) |
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424 | deallocate(oldtsoil) |
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425 | endif ! of if (interpol) |
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426 | |
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427 | |
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428 | |
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429 | ! 6. Load Geothermal Flux |
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430 | ! ---------------------------------------------------------------------- |
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431 | |
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432 | |
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433 | call get_field("flux_geo",flux_geo,found,timeindex=indextime) |
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434 | if (.not.found) then |
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435 | write(*,*) "soil_settings: Failed loading <flux_geo>" |
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436 | write(*,*) "soil_settings: Will put <flux_geo> to 0." |
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437 | flux_geo(:,:) = 0. |
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438 | endif |
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439 | |
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440 | |
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441 | ! 7. Adsorption |
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442 | ! ---------------------------------------------------------------------- |
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443 | |
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444 | |
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445 | if (adsorption_soil) then |
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446 | ! Subsurface water vapor |
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447 | txt="h2o_vap_soil" |
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448 | write(*,*) 'phyetat0: loading subsurface tracer', |
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449 | & ' h2o_vap_soil' |
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450 | call get_field(txt,qsoil(:,:,igcm_h2o_vap_soil,:),found, |
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451 | & indextime) |
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452 | if (.not.found) then |
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453 | write(*,*) "phyetat0: Failed loading <",trim(txt),">" |
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454 | write(*,*) " ",trim(txt)," is set to zero" |
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455 | qsoil(:,:,igcm_h2o_vap_soil,:)= 0. |
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456 | else |
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457 | write(*,*) "phyetat0: suburface tracer <",trim(txt), |
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458 | & "> range:", minval(qsoil(:,:,igcm_h2o_vap_soil,:)), |
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459 | & maxval(qsoil(:,:,igcm_h2o_vap_soil,:)) |
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460 | endif |
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461 | ! Subsurface ice |
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462 | txt="h2o_ice_soil" |
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463 | write(*,*) 'phyetat0: loading subsurface tracer', |
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464 | & ' h2o_ice_soil' |
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465 | call get_field(txt,qsoil(:,:,igcm_h2o_ice_soil,:),found, |
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466 | & indextime) |
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467 | if (.not.found) then |
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468 | write(*,*) "phyetat0: Failed loading <",trim(txt),">" |
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469 | write(*,*) " ",trim(txt)," is set to zero" |
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470 | qsoil(:,:,igcm_h2o_ice_soil,:)= 0. |
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471 | else |
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472 | write(*,*) "phyetat0: suburface tracer <",trim(txt), |
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473 | & "> range:", |
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474 | & minval(qsoil(:,:,igcm_h2o_ice_soil,:)), |
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475 | & maxval(qsoil(:,:,igcm_h2o_ice_soil,:)) |
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476 | endif |
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477 | ! Adsorbed water |
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478 | txt="h2o_vap_ads" |
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479 | write(*,*) 'phyetat0: loading subsurface tracer', |
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480 | & ' h2o_vap_ads' |
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481 | call get_field(txt,qsoil(:,:,igcm_h2o_vap_ads,:),found, |
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482 | & indextime) |
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483 | if (.not.found) then |
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484 | write(*,*) "phyetat0: Failed loading <",trim(txt),">" |
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485 | write(*,*) " ",trim(txt)," is set to zero" |
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486 | qsoil(:,:,igcm_h2o_vap_ads,:)= 0. |
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487 | else |
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488 | write(*,*) "phyetat0: suburface tracer <",trim(txt),"> |
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489 | & range:", |
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490 | & minval(qsoil(:,:,igcm_h2o_vap_ads,:)), |
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491 | & maxval(qsoil(:,:,igcm_h2o_vap_ads,:)) |
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492 | endif |
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493 | |
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494 | endif ! of adsorption_soil |
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495 | |
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496 | |
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497 | |
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498 | ! 8. Report min and max values of soil temperatures and thermal inertias |
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499 | ! ---------------------------------------------------------------------- |
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500 | |
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501 | write(*,*) |
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502 | write(*,*)'Soil volumetric heat capacity:',volcapa |
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503 | |
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504 | xmin = MINVAL(inertiedat) |
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505 | xmax = MAXVAL(inertiedat) |
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506 | write(*,*)'Soil thermal inertia <inertiedat>:',xmin,xmax |
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507 | |
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508 | xmin = MINVAL(inertiesoil) |
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509 | xmax = MAXVAL(inertiesoil) |
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510 | write(*,*)'Soil thermal inertia <inertiesoil>:',xmin,xmax |
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511 | |
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512 | xmin = 1.0E+20 |
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513 | xmax = -1.0E+20 |
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514 | xmin = MINVAL(tsoil) |
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515 | xmax = MAXVAL(tsoil) |
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516 | write(*,*)'Soil temperature <tsoil>:',xmin,xmax |
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517 | |
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518 | end |
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