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Last change
on this file since 4086 was
3902,
checked in by emillour, 6 months ago
|
|
Mars PCM:
More code tidying: turn geticecover, interp_line, orbite, simpleclouds, tabfi
and tcondco2 into modules.
EM
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File size:
1.0 KB
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| 1 | MODULE orbite_mod |
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| 2 | |
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| 3 | IMPLICIT NONE |
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| 4 | |
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| 5 | CONTAINS |
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| 6 | |
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| 7 | SUBROUTINE orbite(pls,pdist_sol,pdecli) |
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| 8 | USE planete_h, ONLY: e_elips, p_elips, obliquit, lsperi |
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| 9 | USE comcstfi_h, ONLY: pi |
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| 10 | IMPLICIT NONE |
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| 11 | |
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| 12 | c======================================================================= |
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| 13 | c |
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| 14 | c Compute distance to Sun and declination as a function of the solar |
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| 15 | c longitude Ls |
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| 16 | c |
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| 17 | c Arguments: |
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| 18 | c ---------- |
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| 19 | c |
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| 20 | c Input: |
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| 21 | c ------ |
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| 22 | c pls Ls (radians) |
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| 23 | c |
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| 24 | c Output: |
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| 25 | c ------- |
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| 26 | c pdist_sol Distance Sun-Planet in UA |
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| 27 | c pdecli Declinaison ( in radians ) |
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| 28 | c |
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| 29 | c======================================================================= |
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| 30 | |
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| 31 | c arguments: |
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| 32 | c ---------- |
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| 33 | |
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| 34 | REAL,INTENT(IN) :: pls |
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| 35 | REAL,INTENT(OUT) :: pdist_sol, pdecli |
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| 36 | |
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| 37 | c----------------------------------------------------------------------- |
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| 38 | |
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| 39 | c Distance Sun-Planet |
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| 40 | pdist_sol = p_elips/(1.+e_elips*cos(pls-lsperi)) |
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| 41 | |
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| 42 | c Solar declination |
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| 43 | pdecli = asin(sin(pls)*sin(obliquit*pi/180.)) |
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| 44 | |
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| 45 | END SUBROUTINE orbite |
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| 46 | |
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| 47 | END MODULE orbite_mod |
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