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Last change
on this file since 5501 was
5501,
checked in by aclsce, 4 years ago
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First import of IPSLCM6.5_work_ENSEMBLES working configuration
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File size:
1.2 KB
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| 1 | !!---------------------------------------------------------------------- |
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| 2 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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| 3 | !! $Id: grt_cir_dis_saa.h90 10068 2018-08-28 14:09:04Z nicolasmartin $ |
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| 4 | !! Software governed by the CeCILL license (see ./LICENSE) |
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| 5 | !!---------------------------------------------------------------------- |
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| 6 | |
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| 7 | REAL(KIND=wp) FUNCTION grt_cir_dis_saa( pa, pb, pc ) |
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| 8 | !!---------------------------------------------------------------------- |
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| 9 | !! *** FUNCTION grt_cir_dis_saa *** |
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| 10 | !! |
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| 11 | !! ** Purpose : Great circle distance between pts (lat1,lon1) |
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| 12 | !! & (lat2,lon2) with a small-angle approximation |
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| 13 | !! |
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| 14 | !! ** Method : Geometry |
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| 15 | !! |
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| 16 | !! ** Action : |
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| 17 | !! |
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| 18 | !! History |
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| 19 | !! ! 95-12 (G. Madec, E. Durand, A. Weaver, N. Daget) Original |
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| 20 | !! ! 06-03 (A. Vidard) Migration to NEMOVAR |
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| 21 | !! ! 06-10 (A. Weaver) Cleanup |
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| 22 | !!---------------------------------------------------------------------- |
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| 23 | |
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| 24 | !! * Arguments |
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| 25 | REAL(KIND=wp) :: pa ! lon1 - lon2 |
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| 26 | REAL(KIND=wp) :: pb ! lat1 - lat2 |
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| 27 | REAL(KIND=wp) :: pc ! cos(lat2) |
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| 28 | |
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| 29 | grt_cir_dis_saa = SQRT( pa * pa + ( pb * pc )**2 ) |
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| 30 | |
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| 31 | END FUNCTION grt_cir_dis_saa |
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| 32 | |
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