| 1 | MODULE trc_oce |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE trc_oce *** |
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| 4 | !! Ocean passive tracer : share SMS/Ocean variables |
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| 5 | !!====================================================================== |
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| 6 | !! History : 1.0 ! 2004-03 (C. Ethe) Original code |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! trc_oce_rgb : tabulated attenuation coefficients for RGB light penetration |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | USE par_oce |
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| 13 | USE in_out_manager ! I/O manager |
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| 14 | USE dom_oce ! ocean space and time domain |
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| 15 | |
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| 16 | IMPLICIT NONE |
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| 17 | PRIVATE |
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| 18 | |
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| 19 | PUBLIC trc_oce_rgb ! routine called by traqsr.F90 |
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| 20 | PUBLIC trc_oce_rgb_read ! routine called by traqsr.F90 |
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| 21 | PUBLIC trc_oce_ext_lev ! function called by traqsr.F90 at least |
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| 22 | |
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| 23 | REAL(wp), PUBLIC :: r_si2 !: largest depth of extinction (blue & 0.01 mg.m-3) (RGB) |
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| 24 | REAL(wp), PUBLIC , DIMENSION(jpi,jpj,jpk) :: etot3 !: light absortion coefficient |
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| 25 | |
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| 26 | #if defined key_top && defined key_pisces |
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| 27 | !!---------------------------------------------------------------------- |
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| 28 | !! 'key_top' & 'key_pisces' PISCES bio-model |
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| 29 | !!---------------------------------------------------------------------- |
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| 30 | LOGICAL, PUBLIC, PARAMETER :: lk_qsr_bio = .TRUE. !: bio-model light absorption flag |
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| 31 | #else |
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| 32 | !!---------------------------------------------------------------------- |
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| 33 | !! Default option No bio-model light absorption |
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| 34 | !!---------------------------------------------------------------------- |
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| 35 | LOGICAL, PUBLIC, PARAMETER :: lk_qsr_bio = .FALSE. !: bio-model light absorption flag |
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| 36 | #endif |
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| 37 | |
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| 38 | !! * Substitutions |
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| 39 | # include "domzgr_substitute.h90" |
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| 40 | !!---------------------------------------------------------------------- |
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| 41 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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| 42 | !! $Id$ |
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| 43 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 44 | !!---------------------------------------------------------------------- |
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| 45 | |
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| 46 | CONTAINS |
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| 47 | |
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| 48 | SUBROUTINE trc_oce_rgb( prgb ) |
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| 49 | !!--------------------------------------------------------------------- |
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| 50 | !! *** ROUTINE p4z_opt_init *** |
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| 51 | !! |
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| 52 | !! ** Purpose : Initialization of of the optical scheme |
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| 53 | !! |
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| 54 | !! ** Method : Set a look up table for the optical coefficients |
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| 55 | !! i.e. the attenuation coefficient for R-G-B light |
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| 56 | !! tabulated in Chlorophyll class (from JM Andre) |
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| 57 | !! |
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| 58 | !! ** Action : prgb(3,61) tabulated R-G-B attenuation coef. |
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| 59 | !! |
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| 60 | !! Reference : Lengaigne et al. 2007, Clim. Dyn., V28, 5, 503-516. |
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| 61 | !!---------------------------------------------------------------------- |
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| 62 | REAL(wp), DIMENSION(3,61), INTENT(out) :: prgb ! tabulated attenuation coefficient |
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| 63 | !! |
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| 64 | INTEGER :: jc ! dummy loop indice |
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| 65 | INTEGER :: irgb ! temporary integer |
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| 66 | REAL(wp) :: zchl ! temporary scalar |
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| 67 | REAL(wp), DIMENSION(4,61) :: zrgb ! tabulated attenuation coefficient (formerly read in 'kRGB61.txt') |
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| 68 | !!---------------------------------------------------------------------- |
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| 69 | ! |
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| 70 | IF(lwp) THEN |
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| 71 | WRITE(numout,*) |
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| 72 | WRITE(numout,*) 'trc_oce_rgb : Initialisation of the optical look-up table' |
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| 73 | WRITE(numout,*) '~~~~~~~~~~~ ' |
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| 74 | ENDIF |
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| 75 | ! |
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| 76 | ! Chlorophyll ! Blue attenuation ! Green attenuation ! Red attenuation ! |
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| 77 | zrgb(1, 1) = 0.010 ; zrgb(2, 1) = 0.01618 ; zrgb(3, 1) = 0.07464 ; zrgb(4, 1) = 0.37807 |
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| 78 | zrgb(1, 2) = 0.011 ; zrgb(2, 2) = 0.01654 ; zrgb(3, 2) = 0.07480 ; zrgb(4, 2) = 0.37823 |
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| 79 | zrgb(1, 3) = 0.013 ; zrgb(2, 3) = 0.01693 ; zrgb(3, 3) = 0.07499 ; zrgb(4, 3) = 0.37840 |
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| 80 | zrgb(1, 4) = 0.014 ; zrgb(2, 4) = 0.01736 ; zrgb(3, 4) = 0.07518 ; zrgb(4, 4) = 0.37859 |
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| 81 | zrgb(1, 5) = 0.016 ; zrgb(2, 5) = 0.01782 ; zrgb(3, 5) = 0.07539 ; zrgb(4, 5) = 0.37879 |
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| 82 | zrgb(1, 6) = 0.018 ; zrgb(2, 6) = 0.01831 ; zrgb(3, 6) = 0.07562 ; zrgb(4, 6) = 0.37900 |
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| 83 | zrgb(1, 7) = 0.020 ; zrgb(2, 7) = 0.01885 ; zrgb(3, 7) = 0.07586 ; zrgb(4, 7) = 0.37923 |
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| 84 | zrgb(1, 8) = 0.022 ; zrgb(2, 8) = 0.01943 ; zrgb(3, 8) = 0.07613 ; zrgb(4, 8) = 0.37948 |
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| 85 | zrgb(1, 9) = 0.025 ; zrgb(2, 9) = 0.02005 ; zrgb(3, 9) = 0.07641 ; zrgb(4, 9) = 0.37976 |
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| 86 | zrgb(1,10) = 0.028 ; zrgb(2,10) = 0.02073 ; zrgb(3,10) = 0.07672 ; zrgb(4,10) = 0.38005 |
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| 87 | zrgb(1,11) = 0.032 ; zrgb(2,11) = 0.02146 ; zrgb(3,11) = 0.07705 ; zrgb(4,11) = 0.38036 |
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| 88 | zrgb(1,12) = 0.035 ; zrgb(2,12) = 0.02224 ; zrgb(3,12) = 0.07741 ; zrgb(4,12) = 0.38070 |
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| 89 | zrgb(1,13) = 0.040 ; zrgb(2,13) = 0.02310 ; zrgb(3,13) = 0.07780 ; zrgb(4,13) = 0.38107 |
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| 90 | zrgb(1,14) = 0.045 ; zrgb(2,14) = 0.02402 ; zrgb(3,14) = 0.07821 ; zrgb(4,14) = 0.38146 |
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| 91 | zrgb(1,15) = 0.050 ; zrgb(2,15) = 0.02501 ; zrgb(3,15) = 0.07866 ; zrgb(4,15) = 0.38189 |
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| 92 | zrgb(1,16) = 0.056 ; zrgb(2,16) = 0.02608 ; zrgb(3,16) = 0.07914 ; zrgb(4,16) = 0.38235 |
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| 93 | zrgb(1,17) = 0.063 ; zrgb(2,17) = 0.02724 ; zrgb(3,17) = 0.07967 ; zrgb(4,17) = 0.38285 |
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| 94 | zrgb(1,18) = 0.071 ; zrgb(2,18) = 0.02849 ; zrgb(3,18) = 0.08023 ; zrgb(4,18) = 0.38338 |
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| 95 | zrgb(1,19) = 0.079 ; zrgb(2,19) = 0.02984 ; zrgb(3,19) = 0.08083 ; zrgb(4,19) = 0.38396 |
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| 96 | zrgb(1,20) = 0.089 ; zrgb(2,20) = 0.03131 ; zrgb(3,20) = 0.08149 ; zrgb(4,20) = 0.38458 |
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| 97 | zrgb(1,21) = 0.100 ; zrgb(2,21) = 0.03288 ; zrgb(3,21) = 0.08219 ; zrgb(4,21) = 0.38526 |
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| 98 | zrgb(1,22) = 0.112 ; zrgb(2,22) = 0.03459 ; zrgb(3,22) = 0.08295 ; zrgb(4,22) = 0.38598 |
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| 99 | zrgb(1,23) = 0.126 ; zrgb(2,23) = 0.03643 ; zrgb(3,23) = 0.08377 ; zrgb(4,23) = 0.38676 |
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| 100 | zrgb(1,24) = 0.141 ; zrgb(2,24) = 0.03842 ; zrgb(3,24) = 0.08466 ; zrgb(4,24) = 0.38761 |
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| 101 | zrgb(1,25) = 0.158 ; zrgb(2,25) = 0.04057 ; zrgb(3,25) = 0.08561 ; zrgb(4,25) = 0.38852 |
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| 102 | zrgb(1,26) = 0.178 ; zrgb(2,26) = 0.04289 ; zrgb(3,26) = 0.08664 ; zrgb(4,26) = 0.38950 |
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| 103 | zrgb(1,27) = 0.200 ; zrgb(2,27) = 0.04540 ; zrgb(3,27) = 0.08775 ; zrgb(4,27) = 0.39056 |
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| 104 | zrgb(1,28) = 0.224 ; zrgb(2,28) = 0.04811 ; zrgb(3,28) = 0.08894 ; zrgb(4,28) = 0.39171 |
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| 105 | zrgb(1,29) = 0.251 ; zrgb(2,29) = 0.05103 ; zrgb(3,29) = 0.09023 ; zrgb(4,29) = 0.39294 |
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| 106 | zrgb(1,30) = 0.282 ; zrgb(2,30) = 0.05420 ; zrgb(3,30) = 0.09162 ; zrgb(4,30) = 0.39428 |
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| 107 | zrgb(1,31) = 0.316 ; zrgb(2,31) = 0.05761 ; zrgb(3,31) = 0.09312 ; zrgb(4,31) = 0.39572 |
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| 108 | zrgb(1,32) = 0.355 ; zrgb(2,32) = 0.06130 ; zrgb(3,32) = 0.09474 ; zrgb(4,32) = 0.39727 |
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| 109 | zrgb(1,33) = 0.398 ; zrgb(2,33) = 0.06529 ; zrgb(3,33) = 0.09649 ; zrgb(4,33) = 0.39894 |
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| 110 | zrgb(1,34) = 0.447 ; zrgb(2,34) = 0.06959 ; zrgb(3,34) = 0.09837 ; zrgb(4,34) = 0.40075 |
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| 111 | zrgb(1,35) = 0.501 ; zrgb(2,35) = 0.07424 ; zrgb(3,35) = 0.10040 ; zrgb(4,35) = 0.40270 |
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| 112 | zrgb(1,36) = 0.562 ; zrgb(2,36) = 0.07927 ; zrgb(3,36) = 0.10259 ; zrgb(4,36) = 0.40480 |
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| 113 | zrgb(1,37) = 0.631 ; zrgb(2,37) = 0.08470 ; zrgb(3,37) = 0.10495 ; zrgb(4,37) = 0.40707 |
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| 114 | zrgb(1,38) = 0.708 ; zrgb(2,38) = 0.09056 ; zrgb(3,38) = 0.10749 ; zrgb(4,38) = 0.40952 |
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| 115 | zrgb(1,39) = 0.794 ; zrgb(2,39) = 0.09690 ; zrgb(3,39) = 0.11024 ; zrgb(4,39) = 0.41216 |
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| 116 | zrgb(1,40) = 0.891 ; zrgb(2,40) = 0.10374 ; zrgb(3,40) = 0.11320 ; zrgb(4,40) = 0.41502 |
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| 117 | zrgb(1,41) = 1.000 ; zrgb(2,41) = 0.11114 ; zrgb(3,41) = 0.11639 ; zrgb(4,41) = 0.41809 |
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| 118 | zrgb(1,42) = 1.122 ; zrgb(2,42) = 0.11912 ; zrgb(3,42) = 0.11984 ; zrgb(4,42) = 0.42142 |
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| 119 | zrgb(1,43) = 1.259 ; zrgb(2,43) = 0.12775 ; zrgb(3,43) = 0.12356 ; zrgb(4,43) = 0.42500 |
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| 120 | zrgb(1,44) = 1.413 ; zrgb(2,44) = 0.13707 ; zrgb(3,44) = 0.12757 ; zrgb(4,44) = 0.42887 |
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| 121 | zrgb(1,45) = 1.585 ; zrgb(2,45) = 0.14715 ; zrgb(3,45) = 0.13189 ; zrgb(4,45) = 0.43304 |
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| 122 | zrgb(1,46) = 1.778 ; zrgb(2,46) = 0.15803 ; zrgb(3,46) = 0.13655 ; zrgb(4,46) = 0.43754 |
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| 123 | zrgb(1,47) = 1.995 ; zrgb(2,47) = 0.16978 ; zrgb(3,47) = 0.14158 ; zrgb(4,47) = 0.44240 |
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| 124 | zrgb(1,48) = 2.239 ; zrgb(2,48) = 0.18248 ; zrgb(3,48) = 0.14701 ; zrgb(4,48) = 0.44765 |
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| 125 | zrgb(1,49) = 2.512 ; zrgb(2,49) = 0.19620 ; zrgb(3,49) = 0.15286 ; zrgb(4,49) = 0.45331 |
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| 126 | zrgb(1,50) = 2.818 ; zrgb(2,50) = 0.21102 ; zrgb(3,50) = 0.15918 ; zrgb(4,50) = 0.45942 |
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| 127 | zrgb(1,51) = 3.162 ; zrgb(2,51) = 0.22703 ; zrgb(3,51) = 0.16599 ; zrgb(4,51) = 0.46601 |
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| 128 | zrgb(1,52) = 3.548 ; zrgb(2,52) = 0.24433 ; zrgb(3,52) = 0.17334 ; zrgb(4,52) = 0.47313 |
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| 129 | zrgb(1,53) = 3.981 ; zrgb(2,53) = 0.26301 ; zrgb(3,53) = 0.18126 ; zrgb(4,53) = 0.48080 |
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| 130 | zrgb(1,54) = 4.467 ; zrgb(2,54) = 0.28320 ; zrgb(3,54) = 0.18981 ; zrgb(4,54) = 0.48909 |
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| 131 | zrgb(1,55) = 5.012 ; zrgb(2,55) = 0.30502 ; zrgb(3,55) = 0.19903 ; zrgb(4,55) = 0.49803 |
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| 132 | zrgb(1,56) = 5.623 ; zrgb(2,56) = 0.32858 ; zrgb(3,56) = 0.20898 ; zrgb(4,56) = 0.50768 |
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| 133 | zrgb(1,57) = 6.310 ; zrgb(2,57) = 0.35404 ; zrgb(3,57) = 0.21971 ; zrgb(4,57) = 0.51810 |
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| 134 | zrgb(1,58) = 7.079 ; zrgb(2,58) = 0.38154 ; zrgb(3,58) = 0.23129 ; zrgb(4,58) = 0.52934 |
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| 135 | zrgb(1,59) = 7.943 ; zrgb(2,59) = 0.41125 ; zrgb(3,59) = 0.24378 ; zrgb(4,59) = 0.54147 |
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| 136 | zrgb(1,60) = 8.912 ; zrgb(2,60) = 0.44336 ; zrgb(3,60) = 0.25725 ; zrgb(4,60) = 0.55457 |
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| 137 | zrgb(1,61) = 10.000 ; zrgb(2,61) = 0.47804 ; zrgb(3,61) = 0.27178 ; zrgb(4,61) = 0.56870 |
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| 138 | ! |
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| 139 | prgb(:,:) = zrgb(2:4,:) |
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| 140 | ! |
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| 141 | r_si2 = 1.e0 / zrgb(2, 1) ! blue with the smallest chlorophyll concentration) |
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| 142 | IF(lwp) WRITE(numout,*) ' RGB longest depth of extinction r_si2 = ', r_si2 |
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| 143 | ! |
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| 144 | DO jc = 1, 61 ! check |
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| 145 | zchl = zrgb(1,jc) |
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| 146 | irgb = NINT( 41 + 20.* LOG10( zchl ) + 1.e-15 ) |
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| 147 | IF(lwp) WRITE(numout,*) ' jc =', jc, ' Chl = ', zchl, ' irgb = ', irgb |
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| 148 | IF( irgb /= jc ) THEN |
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| 149 | IF(lwp) WRITE(numout,*) ' jc =', jc, ' Chl = ', zchl, ' Chl class = ', irgb |
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| 150 | CALL ctl_stop( 'trc_oce_rgb : inconsistency in Chl tabulated attenuation coeff.' ) |
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| 151 | ENDIF |
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| 152 | END DO |
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| 153 | ! |
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| 154 | END SUBROUTINE trc_oce_rgb |
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| 155 | |
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| 156 | |
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| 157 | SUBROUTINE trc_oce_rgb_read( prgb ) |
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| 158 | !!---------------------------------------------------------------------- |
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| 159 | !! *** ROUTINE p4z_opt_init *** |
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| 160 | !! |
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| 161 | !! ** Purpose : Initialization of of the optical scheme |
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| 162 | !! |
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| 163 | !! ** Method : read the look up table for the optical coefficients |
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| 164 | !! |
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| 165 | !! ** input : xkrgb(61) precomputed array corresponding to the |
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| 166 | !! attenuation coefficient (from JM Andre) |
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| 167 | !!---------------------------------------------------------------------- |
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| 168 | REAL(wp), DIMENSION(3,61), INTENT(out) :: prgb ! tabulated attenuation coefficient |
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| 169 | !! |
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| 170 | INTEGER :: jc, jb ! dummy loop indice |
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| 171 | INTEGER :: irgb ! temporary integer |
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| 172 | REAL(wp) :: zchl ! temporary scalar |
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| 173 | INTEGER :: numlight |
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| 174 | !!---------------------------------------------------------------------- |
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| 175 | ! |
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| 176 | IF(lwp) THEN ! control print |
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| 177 | WRITE(numout,*) |
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| 178 | WRITE(numout,*) ' trc_oce_rgb_read : optical look-up table read in kRGB61.txt file' |
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| 179 | WRITE(numout,*) ' ~~~~~~~~~~~~~~~~' |
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| 180 | WRITE(numout,*) |
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| 181 | ENDIF |
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| 182 | ! |
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| 183 | CALL ctl_opn( numlight, 'kRGB61.txt', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp ) |
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| 184 | DO jc = 1, 61 |
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| 185 | READ(numlight,*) zchl, ( prgb(jb,jc), jb = 1, 3 ) |
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| 186 | irgb = NINT( 41 + 20.* LOG10( zchl ) + 1.e-15 ) |
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| 187 | IF(lwp) WRITE(numout,*) ' jc =', jc, ' Chl = ', zchl, ' irgb = ', irgb |
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| 188 | IF( irgb /= jc ) THEN |
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| 189 | IF(lwp) WRITE(numout,*) ' jc =', jc, ' Chl = ', zchl, ' Chl class = ', irgb |
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| 190 | CALL ctl_stop( 'trc_oce_rgb_read : inconsistency in Chl tabulated attenuation coeff.' ) |
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| 191 | ENDIF |
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| 192 | END DO |
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| 193 | CLOSE( numlight ) |
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| 194 | ! |
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| 195 | r_si2 = 1.e0 / prgb(1, 1) ! blue with the smallest chlorophyll concentration) |
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| 196 | IF(lwp) WRITE(numout,*) ' RGB longest depth of extinction r_si2 = ', r_si2 |
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| 197 | ! |
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| 198 | END SUBROUTINE trc_oce_rgb_read |
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| 199 | |
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| 200 | |
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| 201 | FUNCTION trc_oce_ext_lev( prldex, pqsr_frc ) RESULT( pjl ) |
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| 202 | !!---------------------------------------------------------------------- |
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| 203 | !! *** ROUTINE trc_oce_ext_lev *** |
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| 204 | !! |
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| 205 | !! ** Purpose : compute max. level for light penetration |
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| 206 | !! |
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| 207 | !! ** Method : the function provides the level at which irradiance |
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| 208 | !! becomes negligible (i.e. = 1.e-15 W/m2) for 3 or 2 bands light |
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| 209 | !! penetration: I(z) = pqsr_frc * EXP(hext/prldex) = 1.e-15 W/m2 |
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| 210 | !! # prldex is the longest depth of extinction: |
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| 211 | !! - prldex = 23 m (2 bands case) |
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| 212 | !! - prldex = 62 m (3 bands case: blue waveband & 0.01 mg/m2 for the chlorophyll) |
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| 213 | !! # pqsr_frc is the fraction of solar radiation which penetrates, |
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| 214 | !! considering Qsr=240 W/m2 and rn_abs = 0.58: |
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| 215 | !! - pqsr_frc = Qsr * (1-rn_abs) = 1.00e2 W/m2 (2 bands case) |
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| 216 | !! - pqsr_frc = Qsr * (1-rn_abs)/3 = 0.33e2 W/m2 (3 bands case & equi-partition) |
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| 217 | !! |
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| 218 | !!---------------------------------------------------------------------- |
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| 219 | REAL(wp), INTENT(in) :: prldex ! longest depth of extinction |
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| 220 | REAL(wp), INTENT(in) :: pqsr_frc ! frac. solar radiation which penetrates |
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| 221 | !! |
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| 222 | INTEGER :: jk, pjl ! levels |
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| 223 | REAL(wp) :: zhext ! deepest level till which light penetrates |
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| 224 | REAL(wp) :: zprec = 15._wp ! precision to reach -LOG10(1.e-15) |
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| 225 | REAL(wp) :: zem ! temporary scalar |
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| 226 | !!---------------------------------------------------------------------- |
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| 227 | ! |
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| 228 | ! It is not necessary to compute anything bellow the following depth |
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| 229 | zhext = prldex * ( LOG(10.e0) * zprec + LOG(pqsr_frc) ) |
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| 230 | |
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| 231 | ! Level of light extinction |
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| 232 | pjl = jpkm1 |
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| 233 | DO jk = jpkm1, 1, -1 |
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| 234 | zem = MAXVAL( fsdepw(:,:,jk+1) * tmask(:,:,jk) ) |
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| 235 | IF( zem >= zhext ) pjl = jk ! last T-level reached by Qsr |
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| 236 | END DO |
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| 237 | ! |
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| 238 | END FUNCTION trc_oce_ext_lev |
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| 239 | |
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| 240 | |
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| 241 | !!====================================================================== |
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| 242 | END MODULE trc_oce |
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