| 1 | subroutine interpolateH2H2(wn,temp,pres,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-H2 CIA opacity, using a lookup table from |
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| 8 | ! HITRAN (2011 or later) |
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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 | ! + J.Vatant d'Ollone (2019) |
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| 15 | ! - Enable updated HITRAN file (Karman2019,Fletcher2018) |
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| 16 | ! (2018 one should be default for giant planets) |
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| 17 | !================================================================== |
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| 18 | |
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| 19 | use callkeys_mod, only: versH2H2cia, strictboundH2H2cia |
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| 20 | use datafile_mod, only: datadir |
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| 21 | |
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| 22 | implicit none |
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| 23 | |
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| 24 | ! input |
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| 25 | double precision wn ! wavenumber (cm^-1) |
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| 26 | double precision temp ! temperature (Kelvin) |
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| 27 | double precision pres ! pressure (Pascals) |
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| 28 | |
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| 29 | ! output |
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| 30 | double precision abcoef ! absorption coefficient (m^-1) |
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| 31 | |
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| 32 | integer nS,nT |
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| 33 | parameter(nT=10) |
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| 34 | |
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| 35 | double precision, parameter :: losch = 2.6867774e19 |
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| 36 | ! Loschmit's number (molecule cm^-3 at STP) |
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| 37 | ! converts cm^5 molecule^-2 --> cm^-1 amagat^-2 |
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| 38 | ! see Richard et al. 2011, JQSRT for details |
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| 39 | |
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| 40 | double precision amagat |
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| 41 | double precision temp_arr(nT) |
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| 42 | |
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| 43 | double precision, dimension(:), allocatable :: wn_arr |
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| 44 | double precision, dimension(:,:), allocatable :: abs_arr |
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| 45 | |
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| 46 | integer k,iT |
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| 47 | logical firstcall |
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| 48 | |
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| 49 | save nS, wn_arr, temp_arr, abs_arr !read by master |
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| 50 | |
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| 51 | character*100 dt_file |
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| 52 | integer ios |
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| 53 | |
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| 54 | character(LEN=*), parameter :: fmat11 = "(A20,F10.3,F10.3,I7,F7.1,E10.3,F5.3)" |
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| 55 | character(LEN=*), parameter :: fmat18 = "(A12,A3,A5,F10.6,F10.4,I7,F7.3,E10.3,F5.3)" |
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| 56 | |
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| 57 | character*20 bleh |
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| 58 | double precision blah, Ttemp |
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| 59 | integer nres |
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| 60 | |
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| 61 | integer ind |
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| 62 | |
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| 63 | if(temp.gt.400)then |
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| 64 | if (strictboundH2H2cia) then |
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| 65 | print*,'Your temperatures are too high for this H2-H2 CIA dataset. If you ' |
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| 66 | print*,'really want to run simulations with hydrogen at T > 400 K, contact' |
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| 67 | print*,'Robin Wordsworth [rwordsworth@uchicago.edu].' |
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| 68 | stop |
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| 69 | else |
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| 70 | print*,'Your temperatures are too high for this H2-H2 CIA dataset' |
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| 71 | print*,'you have chosen strictboundH2H2cia = ', strictboundH2H2cia |
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| 72 | print*,'*********************************************************' |
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| 73 | print*,' we allow model to continue but with temp = 400 ' |
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| 74 | print*,' ... for H2-H2 CIA dataset ... ' |
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| 75 | print*,' ... we assume we know what you are doing ... ' |
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| 76 | print*,'*********************************************************' |
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| 77 | temp = 400 |
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| 78 | endif |
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| 79 | endif |
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| 80 | |
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| 81 | amagat = (273.15/temp)*(pres/101325.0) |
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| 82 | |
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| 83 | if(firstcall)then ! called by sugas_corrk only |
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| 84 | print*,'----------------------------------------------------' |
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| 85 | print*,'Initialising H2-H2 continuum from HITRAN database...' |
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| 86 | |
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| 87 | ! 1.1 Open the ASCII files and set nS according to version |
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| 88 | ! Only two possible versions for now : 2011 or 2018 (sanity check in inifis_mod) |
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| 89 | if (versH2H2cia.eq.2011) then |
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| 90 | dt_file=TRIM(datadir)//'/continuum_data/H2-H2_norm_2011.cia' |
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| 91 | nS = 2428 |
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| 92 | else if (versH2H2cia.eq.2018) then |
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| 93 | dt_file=TRIM(datadir)//'/continuum_data/H2-H2_norm_2018.cia' |
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| 94 | nS = 9600 |
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| 95 | endif |
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| 96 | |
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| 97 | if(.not.allocated(wn_arr)) allocate(wn_arr(nS)) |
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| 98 | if(.not.allocated(abs_arr)) allocate(abs_arr(nS,nT)) |
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| 99 | |
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| 100 | !$OMP MASTER |
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| 101 | open(33,file=dt_file,form='formatted',status='old',iostat=ios) |
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| 102 | if (ios.ne.0) then ! file not found |
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| 103 | write(*,*) 'Error from interpolateH2H2' |
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| 104 | write(*,*) 'Data file ',trim(dt_file),' not found.' |
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| 105 | write(*,*) 'Check that your path to datagcm:',trim(datadir) |
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| 106 | write(*,*) 'is correct. You can change it in callphys.def with:' |
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| 107 | write(*,*) 'datadir = /absolute/path/to/datagcm' |
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| 108 | write(*,*) 'Also check that the continuum data continuum_data/H2-H2_norm_2011.cia or H2-H2_norm_2018.cia is there.' |
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| 109 | call abort |
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| 110 | else |
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| 111 | |
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| 112 | if(versH2H2cia.eq.2011) then |
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| 113 | write(*,*) '... You are using H2-H2 CIA from 2011 but you should use more recent data available on HITRAN !' |
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| 114 | write(*,*) '... (Especially if you are running a giant planet atmosphere)' |
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| 115 | write(*,*) '... Just find out the H2-H2_norm_2018.cia, put it in your datadir and have a look at interpolateH2H2.F90 ! .' |
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| 116 | endif |
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| 117 | |
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| 118 | do iT=1,nT |
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| 119 | |
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| 120 | ! Only two possibles values for now : 2011 or 2018 (sanity check in inifis_mod) |
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| 121 | if(versH2H2cia.eq.2011) then |
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| 122 | read(33,fmat11) bleh,blah,blah,nres,Ttemp |
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| 123 | else if (versH2H2cia.eq.2018) then |
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| 124 | read(33,fmat18) bleh,bleh,bleh,blah,blah,nres,Ttemp |
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| 125 | endif |
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| 126 | |
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| 127 | if(nS.ne.nres)then |
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| 128 | print*,'Resolution given in file: ',trim(dt_file) |
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| 129 | print*,'is ',nres,', which does not match nS.' |
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| 130 | print*,'Please adjust nS value in interpolateH2H2.F90' |
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| 131 | stop |
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| 132 | endif |
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| 133 | temp_arr(iT)=Ttemp |
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| 134 | |
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| 135 | do k=1,nS |
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| 136 | read(33,*) wn_arr(k),abs_arr(k,it) |
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| 137 | end do |
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| 138 | |
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| 139 | end do |
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| 140 | |
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| 141 | endif |
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| 142 | close(33) |
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| 143 | !$OMP END MASTER |
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| 144 | !$OMP BARRIER |
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| 145 | |
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| 146 | print*,'interpolateH2H2: At wavenumber ',wn,' cm^-1' |
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| 147 | print*,' temperature ',temp,' K' |
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| 148 | print*,' pressure ',pres,' Pa' |
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| 149 | |
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| 150 | endif |
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| 151 | |
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| 152 | call bilinearbig(nS,nT,wn_arr,temp_arr,abs_arr,wn,temp,abcoef,ind) |
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| 153 | |
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| 154 | !print*,'the absorption is ',abcoef,' cm^5 molecule^-2' |
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| 155 | !print*,'or ',abcoef*losch**2,' cm^-1 amagat^-2' |
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| 156 | |
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| 157 | abcoef=abcoef*losch**2*100.0*amagat**2 ! convert to m^-1 |
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| 158 | |
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| 159 | !print*,'We have ',amagat,' amagats of H2' |
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| 160 | !print*,'So the absorption is ',abcoef,' m^-1' |
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| 161 | |
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| 162 | ! unlike for Rayleigh scattering, we do not currently weight by the BB function |
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| 163 | ! however our bands are normally thin, so this is no big deal. |
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| 164 | |
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| 165 | return |
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| 166 | end subroutine interpolateH2H2 |
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