| 1 | subroutine interpolateH2He(wn,temp,presH2,presHe,abcoef,firstcall,ind) |
|---|
| 2 | |
|---|
| 3 | !================================================================== |
|---|
| 4 | ! |
|---|
| 5 | ! Purpose |
|---|
| 6 | ! ------- |
|---|
| 7 | ! Calculates the H2-He CIA opacity, using a lookup table from |
|---|
| 8 | ! HITRAN (2011) |
|---|
| 9 | ! |
|---|
| 10 | ! Authors |
|---|
| 11 | ! ------- |
|---|
| 12 | ! R. Wordsworth (2011) |
|---|
| 13 | ! |
|---|
| 14 | !================================================================== |
|---|
| 15 | |
|---|
| 16 | use callkeys_mod, only: H2orthopara_mixture, strictboundcia |
|---|
| 17 | use datafile_mod, only: datadir |
|---|
| 18 | use mod_phys_lmdz_para, only : is_master |
|---|
| 19 | |
|---|
| 20 | implicit none |
|---|
| 21 | |
|---|
| 22 | ! input |
|---|
| 23 | double precision wn ! wavenumber (cm^-1) |
|---|
| 24 | double precision temp ! temperature (Kelvin) |
|---|
| 25 | double precision presH2 ! H2 partial pressure (Pascals) |
|---|
| 26 | double precision presHe ! He partial pressure (Pascals) |
|---|
| 27 | |
|---|
| 28 | ! output |
|---|
| 29 | double precision abcoef ! absorption coefficient (m^-1) |
|---|
| 30 | |
|---|
| 31 | integer nS,nT |
|---|
| 32 | parameter(nT=10) |
|---|
| 33 | |
|---|
| 34 | double precision, parameter :: losch = 2.6867774e19 |
|---|
| 35 | ! Loschmit's number (molecule cm^-3 at STP) |
|---|
| 36 | ! converts cm^5 molecule^-2 --> cm^-1 amagat^-2 |
|---|
| 37 | ! see Richard et al. 2011, JQSRT for details |
|---|
| 38 | |
|---|
| 39 | double precision amagatH2 |
|---|
| 40 | double precision amagatHe |
|---|
| 41 | double precision temp_arr(nT) |
|---|
| 42 | double precision, dimension(:), allocatable :: wn_arr |
|---|
| 43 | double precision, dimension(:,:), allocatable :: abs_arr |
|---|
| 44 | |
|---|
| 45 | integer k,iT |
|---|
| 46 | logical firstcall |
|---|
| 47 | |
|---|
| 48 | save ns, wn_arr, temp_arr, abs_arr !read by master |
|---|
| 49 | |
|---|
| 50 | character*100 dt_file |
|---|
| 51 | integer strlen,ios |
|---|
| 52 | |
|---|
| 53 | character(LEN=*), parameter :: fmat1 = "(A20,F10.3,F10.3,I7,F7.1,E10.3,F5.3)" |
|---|
| 54 | |
|---|
| 55 | character*20 bleh |
|---|
| 56 | double precision blah, Ttemp, ztemp |
|---|
| 57 | |
|---|
| 58 | integer nres |
|---|
| 59 | |
|---|
| 60 | integer ind |
|---|
| 61 | |
|---|
| 62 | ztemp=temp |
|---|
| 63 | |
|---|
| 64 | if (H2orthopara_mixture .eq. "hot") then ! .and. (temp .gt. 3000.0)) then |
|---|
| 65 | ! print*,"We're in the Hot Jupiter case " |
|---|
| 66 | if (ztemp .gt. 9900) then |
|---|
| 67 | if (strictboundcia) then |
|---|
| 68 | if (is_master) then |
|---|
| 69 | print*,'Your temperatures are too high for this H2-He CIA dataset (Hot Jupiter case).' |
|---|
| 70 | print*,'Please run mixed H2-He atmospheres below T = 9900.0 K.' |
|---|
| 71 | endif !is_master |
|---|
| 72 | call abort_physic("interpolateH2He", "temperatures are too high for this CIA dataset", 1) |
|---|
| 73 | else |
|---|
| 74 | !if (is_master) then |
|---|
| 75 | ! print*,'Your temperatures are too high for this H2-He CIA dataset (Hot Jupiter case)' |
|---|
| 76 | ! print*,'you have chosen strictboundcia = ', strictboundcia |
|---|
| 77 | ! print*,'*********************************************************' |
|---|
| 78 | ! print*,' we allow model to continue but with temp = 9900.0 K ' |
|---|
| 79 | ! print*,' ... for H2-He CIA dataset ... ' |
|---|
| 80 | ! print*,' ... we assume we know what you are doing ... ' |
|---|
| 81 | ! print*,'*********************************************************' |
|---|
| 82 | !endif !is_master |
|---|
| 83 | ztemp = 9900.0 |
|---|
| 84 | endif ! of stricbound cia |
|---|
| 85 | endif ! temp .gt. 9900 |
|---|
| 86 | else !not in Hot Jupiter case |
|---|
| 87 | if(ztemp.gt.400)then |
|---|
| 88 | if (strictboundcia) then |
|---|
| 89 | if (is_master) then |
|---|
| 90 | print*,'Your temperatures are too high for this H2-He CIA dataset.' |
|---|
| 91 | print*,'Please run mixed H2-He atmospheres below T = 400 K.' |
|---|
| 92 | endif ! is_master |
|---|
| 93 | call abort_physic("interpolateH2He", "temperatures are too high for this CIA dataset", 1) |
|---|
| 94 | else |
|---|
| 95 | !if (is_master) then |
|---|
| 96 | ! print*,'Your temperatures are too high for this H2-He CIA dataset' |
|---|
| 97 | ! print*,'you have chosen strictboundcia = ', strictboundcia |
|---|
| 98 | ! print*,'*********************************************************' |
|---|
| 99 | ! print*,' we allow model to continue but with temp = 400 ' |
|---|
| 100 | ! print*,' ... for H2-He CIA dataset ... ' |
|---|
| 101 | ! print*,' ... we assume we know what you are doing ... ' |
|---|
| 102 | ! print*,'*********************************************************' |
|---|
| 103 | !endif ! is_master |
|---|
| 104 | ztemp = 400 |
|---|
| 105 | endif !of strictboundcia |
|---|
| 106 | elseif(ztemp.lt.40)then |
|---|
| 107 | if (strictboundcia) then |
|---|
| 108 | if (is_master) then |
|---|
| 109 | print*,'Your temperatures are too low for this H2-He CIA dataset.' |
|---|
| 110 | print*,'Please run mixed H2-He atmospheres above T = 40 K.' |
|---|
| 111 | endif ! is_master |
|---|
| 112 | call abort_physic("interpolateH2He", "temperatures are too low for this CIA dataset", 1) |
|---|
| 113 | else |
|---|
| 114 | !if (is_master) then |
|---|
| 115 | ! print*,'Your temperatures are too low for this H2-He CIA dataset' |
|---|
| 116 | ! print*,'you have chosen strictboundcia = ', strictboundcia |
|---|
| 117 | ! print*,'*********************************************************' |
|---|
| 118 | ! print*,' we allow model to continue but with temp = 40 ' |
|---|
| 119 | ! print*,' ... for H2-He CIA dataset ... ' |
|---|
| 120 | ! print*,' ... we assume we know what you are doing ... ' |
|---|
| 121 | ! print*,'*********************************************************' |
|---|
| 122 | !endif ! is_master |
|---|
| 123 | ztemp = 40 |
|---|
| 124 | endif !of strictboundcia |
|---|
| 125 | endif ! of (temp .gt. 400) |
|---|
| 126 | endif ! of (H2orthopara_mixture .eq. "hot") |
|---|
| 127 | |
|---|
| 128 | |
|---|
| 129 | amagatH2 = (273.15/temp)*(presH2/101325.0) |
|---|
| 130 | amagatHe = (273.15/temp)*(presHe/101325.0) |
|---|
| 131 | |
|---|
| 132 | if(firstcall)then ! called by sugas_corrk only |
|---|
| 133 | if (is_master) print*,'----------------------------------------------------' |
|---|
| 134 | if (is_master) print*,'Initialising H2-He continuum from HITRAN database...' |
|---|
| 135 | |
|---|
| 136 | ! 1.1 Open the ASCII files |
|---|
| 137 | if (H2orthopara_mixture.eq."normal") then |
|---|
| 138 | nS = 2428 |
|---|
| 139 | dt_file=TRIM(datadir)//'/continuum_data/H2-He_norm_2011.cia' |
|---|
| 140 | else if (H2orthopara_mixture.eq."equilibrium") then |
|---|
| 141 | nS = 1501 |
|---|
| 142 | dt_file=TRIM(datadir)//'/continuum_data/H2-He_eq_0-15000cm-1_40-400K.cia' |
|---|
| 143 | else if (H2orthopara_mixture .eq. "hot") then !we use a dataset than can go as high as 9900 K |
|---|
| 144 | nS = 19981 |
|---|
| 145 | dt_file=TRIM(datadir)//'/continuum_data/H2-He_2011.cia' |
|---|
| 146 | endif |
|---|
| 147 | |
|---|
| 148 | if (.not. allocated(wn_arr)) allocate(wn_arr(nS)) |
|---|
| 149 | if (.not. allocated(abs_arr)) allocate(abs_arr(nS,nT)) |
|---|
| 150 | |
|---|
| 151 | |
|---|
| 152 | !$OMP MASTER |
|---|
| 153 | open(33,file=dt_file,form='formatted',status='old',iostat=ios) |
|---|
| 154 | if (ios.ne.0) then ! file not found |
|---|
| 155 | if (is_master) then |
|---|
| 156 | write(*,*) 'Error from interpolateH2He' |
|---|
| 157 | write(*,*) 'Data file ',trim(dt_file),' not found.' |
|---|
| 158 | write(*,*) 'Check that your path to datagcm:',trim(datadir) |
|---|
| 159 | write(*,*) 'is correct. You can change it in callphys.def with:' |
|---|
| 160 | write(*,*) 'datadir = /absolute/path/to/datagcm' |
|---|
| 161 | write(*,*) 'Also check that the continuum data is there.' |
|---|
| 162 | endif |
|---|
| 163 | call abort_physic("interpolateH2He", "Unable to read file", 1) |
|---|
| 164 | else |
|---|
| 165 | |
|---|
| 166 | do iT=1,nT |
|---|
| 167 | |
|---|
| 168 | read(33,fmat1) bleh,blah,blah,nres,Ttemp |
|---|
| 169 | if(nS.ne.nres)then |
|---|
| 170 | if (is_master) then |
|---|
| 171 | print*,'Resolution given in file: ',trim(dt_file) |
|---|
| 172 | print*,'is ',nres,', which does not match nS.' |
|---|
| 173 | print*,'Please adjust nS value in interpolateH2He.F90' |
|---|
| 174 | endif |
|---|
| 175 | call abort_physic("interpolateH2He", "Resolution given does not match with nS value", 1) |
|---|
| 176 | endif |
|---|
| 177 | temp_arr(iT)=Ttemp |
|---|
| 178 | |
|---|
| 179 | do k=1,nS |
|---|
| 180 | read(33,*) wn_arr(k),abs_arr(k,it) |
|---|
| 181 | end do |
|---|
| 182 | |
|---|
| 183 | end do |
|---|
| 184 | |
|---|
| 185 | endif |
|---|
| 186 | close(33) |
|---|
| 187 | !$OMP END MASTER |
|---|
| 188 | !$OMP BARRIER |
|---|
| 189 | if (is_master) then |
|---|
| 190 | print*,'interpolateH2He: At wavenumber ',wn,' cm^-1' |
|---|
| 191 | print*,' temperature ',temp,' K' |
|---|
| 192 | print*,' H2 partial pressure ',presH2,' Pa' |
|---|
| 193 | print*,' and He partial pressure ',presHe,' Pa' |
|---|
| 194 | endif |
|---|
| 195 | endif !! if (firstcall) |
|---|
| 196 | |
|---|
| 197 | call bilinearbig(nS,nT,wn_arr,temp_arr,abs_arr,wn,ztemp,abcoef,ind) |
|---|
| 198 | |
|---|
| 199 | !print*,'the absorption is ',abcoef,' cm^5 molecule^-2' |
|---|
| 200 | !print*,'or ',abcoef*losch**2,' cm^-1 amagat^-2' |
|---|
| 201 | |
|---|
| 202 | abcoef=abcoef*losch**2*100.0*amagatH2*amagatHe ! convert to m^-1 |
|---|
| 203 | |
|---|
| 204 | !print*,'We have ',amagatH2,' amagats of H2' |
|---|
| 205 | !print*,'and ',amagatHe,' amagats of He' |
|---|
| 206 | !print*,'So the absorption is ',abcoef,' m^-1' |
|---|
| 207 | |
|---|
| 208 | ! unlike for Rayleigh scattering, we do not currently weight by the BB function |
|---|
| 209 | ! however our bands are normally thin, so this is no big deal. |
|---|
| 210 | |
|---|
| 211 | return |
|---|
| 212 | end subroutine interpolateH2He |
|---|
