| 1 | MODULE recomp_orb_param_mod |
|---|
| 2 | !======================================================================= |
|---|
| 3 | ! |
|---|
| 4 | ! Purpose: Recompute orbit parameters based on values by Laskar et al., |
|---|
| 5 | ! |
|---|
| 6 | ! Author: RV |
|---|
| 7 | !======================================================================= |
|---|
| 8 | IMPLICIT NONE |
|---|
| 9 | |
|---|
| 10 | CONTAINS |
|---|
| 11 | |
|---|
| 12 | SUBROUTINE recomp_orb_param(final_iter) |
|---|
| 13 | |
|---|
| 14 | USE temps_mod_evol, ONLY: year_bp_ini, year_PEM, var_obl, var_ex, var_lsp |
|---|
| 15 | #ifndef CPP_STD |
|---|
| 16 | USE comconst_mod, ONLY: pi |
|---|
| 17 | USE planete_h, ONLY: e_elips, obliquit, timeperi, periheli,aphelie,p_elips,peri_day,year_day |
|---|
| 18 | #else |
|---|
| 19 | use planete_mod, only: e_elips, obliquit, timeperi,periastr,apoastr,p_elips,peri_day,year_day |
|---|
| 20 | USE comcstfi_mod, only: pi |
|---|
| 21 | |
|---|
| 22 | #endif |
|---|
| 23 | |
|---|
| 24 | USE lask_param_mod, only: yearlask,oblask,exlask,lsplask, & |
|---|
| 25 | end_lask_param_mod,last_ilask |
|---|
| 26 | |
|---|
| 27 | IMPLICIT NONE |
|---|
| 28 | |
|---|
| 29 | !-------------------------------------------------------- |
|---|
| 30 | ! Input Variables |
|---|
| 31 | !-------------------------------------------------------- |
|---|
| 32 | |
|---|
| 33 | integer,intent(in) :: final_iter ! Number of year iteration of the PEM |
|---|
| 34 | |
|---|
| 35 | !-------------------------------------------------------- |
|---|
| 36 | ! Output Variables |
|---|
| 37 | !-------------------------------------------------------- |
|---|
| 38 | |
|---|
| 39 | !-------------------------------------------------------- |
|---|
| 40 | ! Local variables |
|---|
| 41 | !-------------------------------------------------------- |
|---|
| 42 | |
|---|
| 43 | real :: Year ! Year of the simulation |
|---|
| 44 | real :: timeperi_ls ! time of peri in ls |
|---|
| 45 | integer ilask ! Loop variable |
|---|
| 46 | real :: halfaxe ! Million of km |
|---|
| 47 | real :: unitastr |
|---|
| 48 | |
|---|
| 49 | real xa,xb,xc,ya,yb |
|---|
| 50 | |
|---|
| 51 | |
|---|
| 52 | ! ********************************************************************** |
|---|
| 53 | ! 0. Initializations |
|---|
| 54 | ! ********************************************************************** |
|---|
| 55 | #ifdef CPP_STD |
|---|
| 56 | real aphelie |
|---|
| 57 | real periheli |
|---|
| 58 | |
|---|
| 59 | aphelie=apoastr |
|---|
| 60 | periheli=periastr |
|---|
| 61 | #endif |
|---|
| 62 | |
|---|
| 63 | Year=year_bp_ini+year_PEM+final_iter |
|---|
| 64 | |
|---|
| 65 | timeperi_ls=timeperi*360/2/pi |
|---|
| 66 | |
|---|
| 67 | ! Year=-953200 |
|---|
| 68 | print *, "recomp_orb_param, Old year=", year_bp_ini+year_PEM |
|---|
| 69 | print *, "recomp_orb_param, New year=", Year |
|---|
| 70 | print *, "recomp_orb_param, Old obl=", obliquit |
|---|
| 71 | print *, "recomp_orb_param, Old ex=", e_elips |
|---|
| 72 | print *, "recomp_orb_param, Old lsp=", timeperi_ls |
|---|
| 73 | print *, "recomp_orb_param, Old timeperi=", timeperi |
|---|
| 74 | |
|---|
| 75 | xc=Year |
|---|
| 76 | |
|---|
| 77 | do ilask=last_ilask,1,-1 |
|---|
| 78 | |
|---|
| 79 | xa=yearlask(ilask) |
|---|
| 80 | xb=yearlask(ilask+1) |
|---|
| 81 | |
|---|
| 82 | if(yearlask(ilask) .GT.Year) then |
|---|
| 83 | if(var_obl) then |
|---|
| 84 | ya=oblask(ilask) |
|---|
| 85 | yb=oblask(ilask+1) |
|---|
| 86 | obliquit=ya*(xc-xb)/(xa-xb)+yb*(xa-xc)/(xa-xb) |
|---|
| 87 | endif |
|---|
| 88 | if(var_ex) then |
|---|
| 89 | ya=exlask(ilask) |
|---|
| 90 | yb=exlask(ilask+1) |
|---|
| 91 | e_elips=ya*(xc-xb)/(xa-xb)+yb*(xa-xc)/(xa-xb) |
|---|
| 92 | endif |
|---|
| 93 | if(var_lsp) then |
|---|
| 94 | if(lsplask(ilask)-lsplask(ilask+1) .gt.200) then |
|---|
| 95 | if(lsplask(ilask).lt.lsplask(ilask+1)) then |
|---|
| 96 | lsplask(ilask)=lsplask(ilask)+360 |
|---|
| 97 | else |
|---|
| 98 | lsplask(ilask+1)=lsplask(ilask+1)+360 |
|---|
| 99 | endif |
|---|
| 100 | endif |
|---|
| 101 | |
|---|
| 102 | ya=lsplask(ilask) |
|---|
| 103 | yb=lsplask(ilask+1) |
|---|
| 104 | timeperi_ls=ya*(xc-xb)/(xa-xb)+yb*(xa-xc)/(xa-xb) |
|---|
| 105 | timeperi_ls=modulo(timeperi_ls,360.) |
|---|
| 106 | halfaxe=227.94 |
|---|
| 107 | timeperi=timeperi_ls*2*pi/360 |
|---|
| 108 | periheli = halfaxe*(1-e_elips) |
|---|
| 109 | aphelie = halfaxe*(1+e_elips) |
|---|
| 110 | unitastr=149.597927 |
|---|
| 111 | p_elips=0.5*(periheli+aphelie)*(1-e_elips*e_elips)/unitastr |
|---|
| 112 | #ifndef CPP_STD |
|---|
| 113 | call call_dayperi(timeperi,e_elips,peri_day,year_day) |
|---|
| 114 | #endif |
|---|
| 115 | endif |
|---|
| 116 | exit |
|---|
| 117 | endif |
|---|
| 118 | enddo |
|---|
| 119 | |
|---|
| 120 | print *, "recomp_orb_param, Final year of the PEM run:", Year |
|---|
| 121 | print *, "recomp_orb_param, New obl=", obliquit |
|---|
| 122 | print *, "recomp_orb_param, New ex=", e_elips |
|---|
| 123 | print *, "recomp_orb_param, New timeperi=", timeperi |
|---|
| 124 | |
|---|
| 125 | END SUBROUTINE recomp_orb_param |
|---|
| 126 | |
|---|
| 127 | !******************************************************************************** |
|---|
| 128 | |
|---|
| 129 | END MODULE recomp_orb_param_mod |
|---|
