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Last change
on this file since 3026 was
1368,
checked in by emillour, 10 years ago
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Mars GCM:
Some cleanup in orbit.F
EM
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File size:
939 bytes
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| Rev | Line | |
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| [38] | 1 | SUBROUTINE orbite(pls,pdist_sol,pdecli) |
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| [1368] | 2 | USE planete_h, ONLY: e_elips, p_elips, obliquit, timeperi |
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| 3 | USE comcstfi_h, ONLY: pi |
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| [38] | 4 | IMPLICIT NONE |
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| 5 | |
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| 6 | c======================================================================= |
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| 7 | c |
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| [1368] | 8 | c Compute distance to Sun and declination as a function of the solar |
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| [38] | 9 | c longitude Ls |
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| 10 | c |
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| 11 | c Arguments: |
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| 12 | c ---------- |
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| 13 | c |
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| 14 | c Input: |
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| 15 | c ------ |
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| [1368] | 16 | c pls Ls (radians) |
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| [38] | 17 | c |
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| 18 | c Output: |
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| 19 | c ------- |
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| 20 | c pdist_sol Distance Sun-Planet in UA |
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| [1368] | 21 | c pdecli declinaison ( in radians ) |
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| [38] | 22 | c |
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| 23 | c======================================================================= |
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| 24 | |
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| 25 | c arguments: |
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| 26 | c ---------- |
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| 27 | |
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| [1368] | 28 | REAL,INTENT(IN) :: pls |
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| 29 | REAL,INTENT(OUT) :: pdist_sol,pdecli |
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| [38] | 30 | |
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| 31 | c----------------------------------------------------------------------- |
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| 32 | |
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| 33 | c Distance Sun-Planet |
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| 34 | |
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| 35 | pdist_sol=p_elips/(1.+e_elips*cos(pls+timeperi)) |
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| 36 | |
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| 37 | c Solar declination |
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| 38 | |
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| 39 | pdecli= asin (sin(pls)*sin(obliquit*pi/180.)) |
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| 40 | |
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| 41 | END |
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