| 1 | subroutine interpolateH2He(wn,temp,presH2,presHe,abcoef,firstcall,ind) |
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| 2 | |
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| 3 | !================================================================== |
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| 4 | ! |
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| 5 | ! Purpose |
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| 6 | ! ------- |
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| 7 | ! Calculates the H2-He CIA opacity, using a lookup table from |
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| 8 | ! HITRAN (2011) |
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| 9 | ! |
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| 10 | ! Authors |
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| 11 | ! ------- |
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| 12 | ! R. Wordsworth (2011) |
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| 13 | ! |
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| 14 | !================================================================== |
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| 15 | |
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| 16 | use callkeys_mod, only: H2orthopara_mixture, strictboundcia |
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| 17 | use datafile_mod, only: datadir |
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| 18 | use mod_phys_lmdz_para, only : is_master |
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| 19 | |
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| 20 | implicit none |
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| 21 | |
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| 22 | ! input |
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| 23 | double precision wn ! wavenumber (cm^-1) |
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| 24 | double precision temp ! temperature (Kelvin) |
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| 25 | double precision presH2 ! H2 partial pressure (Pascals) |
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| 26 | double precision presHe ! He partial pressure (Pascals) |
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| 27 | |
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| 28 | ! output |
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| 29 | double precision abcoef ! absorption coefficient (m^-1) |
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| 30 | |
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| 31 | integer nS,nT |
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| 32 | parameter(nT=10) |
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| 33 | |
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| 34 | double precision, parameter :: losch = 2.6867774e19 |
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| 35 | ! Loschmit's number (molecule cm^-3 at STP) |
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| 36 | ! converts cm^5 molecule^-2 --> cm^-1 amagat^-2 |
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| 37 | ! see Richard et al. 2011, JQSRT for details |
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| 38 | |
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| 39 | double precision amagatH2 |
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| 40 | double precision amagatHe |
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| 41 | double precision temp_arr(nT) |
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| 42 | double precision, dimension(:), allocatable :: wn_arr |
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| 43 | double precision, dimension(:,:), allocatable :: abs_arr |
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| 44 | |
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| 45 | integer k,iT |
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| 46 | logical firstcall |
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| 47 | |
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| 48 | save wn_arr, temp_arr, abs_arr !read by master |
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| 49 | |
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| 50 | character*100 dt_file |
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| 51 | integer strlen,ios |
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| 52 | |
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| 53 | character(LEN=*), parameter :: fmat1 = "(A20,F10.3,F10.3,I7,F7.1,E10.3,F5.3)" |
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| 54 | |
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| 55 | character*20 bleh |
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| 56 | double precision blah, Ttemp |
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| 57 | integer nres |
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| 58 | |
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| 59 | integer ind |
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| 60 | |
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| 61 | |
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| 62 | if (H2orthopara_mixture .eq. "hot") then ! .and. (temp .gt. 3000.0)) then |
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| 63 | ! print*,"We're in the Hot Jupiter case " |
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| 64 | nS = 19981 |
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| 65 | if (temp .gt. 9900) then |
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| 66 | if (strictboundcia) then |
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| 67 | if (is_master) then |
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| 68 | print*,'Your temperatures are too high for this H2-He CIA dataset (Hot Jupiter case).' |
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| 69 | print*,'Please run mixed H2-He atmospheres below T = 9900.0 K.' |
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| 70 | endif !is_master |
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| 71 | stop |
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| 72 | else |
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| 73 | if (is_master) then |
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| 74 | print*,'Your temperatures are too high for this H2-He CIA dataset (Hot Jupiter case)' |
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| 75 | print*,'you have chosen strictboundcia = ', strictboundcia |
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| 76 | print*,'*********************************************************' |
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| 77 | print*,' we allow model to continue but with temp = 9900.0 K ' |
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| 78 | print*,' ... for H2-He CIA dataset ... ' |
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| 79 | print*,' ... we assume we know what you are doing ... ' |
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| 80 | print*,'*********************************************************' |
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| 81 | endif !is_master |
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| 82 | temp = 9900.0 |
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| 83 | endif ! of stricbound cia |
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| 84 | endif ! temp .gt. 9900 |
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| 85 | else !not in Hot Jupiter case |
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| 86 | nS = 2428 |
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| 87 | if(temp.gt.400)then |
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| 88 | if (strictboundcia) then |
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| 89 | if (is_master) then |
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| 90 | print*,'Your temperatures are too high for this H2-He CIA dataset.' |
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| 91 | print*,'Please run mixed H2-He atmospheres below T = 400 K.' |
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| 92 | endif ! is_master |
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| 93 | stop |
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| 94 | else |
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| 95 | if (is_master) then |
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| 96 | print*,'Your temperatures are too high for this H2-He CIA dataset' |
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| 97 | print*,'you have chosen strictboundcia = ', strictboundcia |
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| 98 | print*,'*********************************************************' |
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| 99 | print*,' we allow model to continue but with temp = 400 ' |
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| 100 | print*,' ... for H2-He CIA dataset ... ' |
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| 101 | print*,' ... we assume we know what you are doing ... ' |
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| 102 | print*,'*********************************************************' |
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| 103 | endif ! is_master |
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| 104 | temp = 400 |
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| 105 | endif !of strictboundcia |
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| 106 | elseif(temp.lt.40)then |
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| 107 | if (strictboundcia) then |
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| 108 | if (is_master) then |
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| 109 | print*,'Your temperatures are too low for this H2-He CIA dataset.' |
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| 110 | print*,'Please run mixed H2-He atmospheres above T = 40 K.' |
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| 111 | endif ! is_master |
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| 112 | stop |
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| 113 | else |
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| 114 | if (is_master) then |
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| 115 | print*,'Your temperatures are too low for this H2-He CIA dataset' |
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| 116 | print*,'you have chosen strictboundcia = ', strictboundcia |
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| 117 | print*,'*********************************************************' |
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| 118 | print*,' we allow model to continue but with temp = 40 ' |
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| 119 | print*,' ... for H2-He CIA dataset ... ' |
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| 120 | print*,' ... we assume we know what you are doing ... ' |
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| 121 | print*,'*********************************************************' |
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| 122 | endif ! is_master |
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| 123 | temp = 40 |
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| 124 | endif !of strictboundcia |
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| 125 | endif ! of (temp .gt. 400) |
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| 126 | endif ! of (H2orthopara_mixture .eq. "hot") |
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| 127 | |
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| 128 | if (.not. allocated(wn_arr)) allocate(wn_arr(nS)) |
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| 129 | if (.not. allocated(abs_arr)) allocate(abs_arr(nS,nT)) |
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| 130 | |
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| 131 | amagatH2 = (273.15/temp)*(presH2/101325.0) |
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| 132 | amagatHe = (273.15/temp)*(presHe/101325.0) |
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| 133 | |
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| 134 | if(firstcall)then ! called by sugas_corrk only |
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| 135 | if (is_master) print*,'----------------------------------------------------' |
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| 136 | if (is_master) print*,'Initialising H2-He continuum from HITRAN database...' |
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| 137 | |
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| 138 | ! 1.1 Open the ASCII files |
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| 139 | if (H2orthopara_mixture.eq."normal") then |
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| 140 | dt_file=TRIM(datadir)//'/continuum_data/H2-He_norm_2011.cia' |
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| 141 | else if (H2orthopara_mixture.eq."equilibrium") then |
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| 142 | dt_file=TRIM(datadir)//'/continuum_data/H2-He_eq_2011.cia' |
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| 143 | else if (H2orthopara_mixture .eq. "hot") then !we use a dataset than can go as high as 9900 K |
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| 144 | dt_file=TRIM(datadir)//'/continuum_data/H2-He_2011.cia' |
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| 145 | endif |
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| 146 | |
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| 147 | !$OMP MASTER |
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| 148 | open(33,file=dt_file,form='formatted',status='old',iostat=ios) |
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| 149 | if (ios.ne.0) then ! file not found |
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| 150 | if (is_master) then |
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| 151 | write(*,*) 'Error from interpolateH2He' |
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| 152 | write(*,*) 'Data file ',trim(dt_file),' not found.' |
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| 153 | write(*,*) 'Check that your path to datagcm:',trim(datadir) |
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| 154 | write(*,*) 'is correct. You can change it in callphys.def with:' |
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| 155 | write(*,*) 'datadir = /absolute/path/to/datagcm' |
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| 156 | write(*,*) 'Also check that the continuum data is there.' |
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| 157 | endif |
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| 158 | call abort |
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| 159 | else |
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| 160 | |
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| 161 | do iT=1,nT |
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| 162 | |
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| 163 | read(33,fmat1) bleh,blah,blah,nres,Ttemp |
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| 164 | if(nS.ne.nres)then |
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| 165 | if (is_master) then |
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| 166 | print*,'Resolution given in file: ',trim(dt_file) |
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| 167 | print*,'is ',nres,', which does not match nS.' |
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| 168 | print*,'Please adjust nS value in interpolateH2He.F90' |
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| 169 | endif |
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| 170 | stop |
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| 171 | endif |
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| 172 | temp_arr(iT)=Ttemp |
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| 173 | |
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| 174 | do k=1,nS |
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| 175 | read(33,*) wn_arr(k),abs_arr(k,it) |
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| 176 | end do |
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| 177 | |
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| 178 | end do |
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| 179 | |
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| 180 | endif |
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| 181 | close(33) |
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| 182 | !$OMP END MASTER |
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| 183 | !$OMP BARRIER |
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| 184 | if (is_master) then |
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| 185 | print*,'interpolateH2He: At wavenumber ',wn,' cm^-1' |
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| 186 | print*,' temperature ',temp,' K' |
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| 187 | print*,' H2 partial pressure ',presH2,' Pa' |
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| 188 | print*,' and He partial pressure ',presHe,' Pa' |
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| 189 | endif |
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| 190 | endif |
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| 191 | |
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| 192 | call bilinearbig(nS,nT,wn_arr,temp_arr,abs_arr,wn,temp,abcoef,ind) |
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| 193 | |
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| 194 | !print*,'the absorption is ',abcoef,' cm^5 molecule^-2' |
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| 195 | !print*,'or ',abcoef*losch**2,' cm^-1 amagat^-2' |
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| 196 | |
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| 197 | abcoef=abcoef*losch**2*100.0*amagatH2*amagatHe ! convert to m^-1 |
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| 198 | |
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| 199 | !print*,'We have ',amagatH2,' amagats of H2' |
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| 200 | !print*,'and ',amagatHe,' amagats of He' |
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| 201 | !print*,'So the absorption is ',abcoef,' m^-1' |
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| 202 | |
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| 203 | ! unlike for Rayleigh scattering, we do not currently weight by the BB function |
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| 204 | ! however our bands are normally thin, so this is no big deal. |
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| 205 | |
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| 206 | return |
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| 207 | end subroutine interpolateH2He |
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