1 | |
---|
2 | CCC $Header$ |
---|
3 | CCC TOP 1.0 , LOCEAN-IPSL (2005) |
---|
4 | C This software is governed by CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
---|
5 | C --------------------------------------------------------------------------- |
---|
6 | CDIR$ LIST |
---|
7 | SUBROUTINE p4zdiat |
---|
8 | #if defined key_passivetrc && defined key_trc_pisces |
---|
9 | CCC--------------------------------------------------------------------- |
---|
10 | CCC |
---|
11 | CCC ROUTINE p4zdiat : PISCES MODEL |
---|
12 | CCC ****************************** |
---|
13 | CCC |
---|
14 | CCC PURPOSE : |
---|
15 | CCC --------- |
---|
16 | CCC Compute the mortality terms for diatoms |
---|
17 | CCC |
---|
18 | CC INPUT : |
---|
19 | CC ----- |
---|
20 | CC argument |
---|
21 | CC None |
---|
22 | CC common |
---|
23 | CC all the common defined in opa |
---|
24 | CC |
---|
25 | CC |
---|
26 | CC OUTPUT : : no |
---|
27 | CC ------ |
---|
28 | CC |
---|
29 | CC EXTERNAL : |
---|
30 | CC -------- |
---|
31 | CC None |
---|
32 | CC |
---|
33 | CC MODIFICATIONS: |
---|
34 | CC -------------- |
---|
35 | CC original : O. Aumont (2002) |
---|
36 | CC---------------------------------------------------------------------- |
---|
37 | CC parameters and commons |
---|
38 | CC ====================== |
---|
39 | CDIR$ NOLIST |
---|
40 | USE oce_trc |
---|
41 | USE trp_trc |
---|
42 | USE sms |
---|
43 | IMPLICIT NONE |
---|
44 | CDIR$ LIST |
---|
45 | CC---------------------------------------------------------------------- |
---|
46 | CC local declarations |
---|
47 | CC ================== |
---|
48 | INTEGER ji, jj, jk |
---|
49 | REAL zfact,zstep,compadi |
---|
50 | C |
---|
51 | C Time step duration for biology |
---|
52 | C ------------------------------ |
---|
53 | C |
---|
54 | zstep=rfact2/rjjss |
---|
55 | C |
---|
56 | C Aggregation term for diatoms is increased in case of nutrient |
---|
57 | C stress as observed in reality. The stressed cells become more |
---|
58 | C sticky and coagulate to sink quickly out of the euphotic zone |
---|
59 | C ------------------------------------------------------------ |
---|
60 | C |
---|
61 | DO jk = 1,jpkm1 |
---|
62 | DO jj = 1,jpj |
---|
63 | DO ji = 1,jpi |
---|
64 | C |
---|
65 | compadi = max((trn(ji,jj,jk,jpdia)-1E-8),0.) |
---|
66 | zfact=1./(trn(ji,jj,jk,jpdia)+rtrn) |
---|
67 | C |
---|
68 | C Aggregation term for diatoms is increased in case of nutrient |
---|
69 | C stress as observed in reality. The stressed cells become more |
---|
70 | C sticky and coagulate to sink quickly out of the euphotic zone |
---|
71 | C ------------------------------------------------------------ |
---|
72 | C |
---|
73 | respp2(ji,jj,jk) = 1E6*zstep |
---|
74 | & *(wchl+wchld*(1.-xlimdia(ji,jj,jk))) |
---|
75 | & *zdiss(ji,jj,jk)*compadi*trn(ji,jj,jk,jpdia) |
---|
76 | # if defined key_off_degrad |
---|
77 | & *facvol(ji,jj,jk) |
---|
78 | # endif |
---|
79 | |
---|
80 | respds(ji,jj,jk) = respp2(ji,jj,jk) |
---|
81 | & *trn(ji,jj,jk,jpbsi)*zfact |
---|
82 | |
---|
83 | respdf(ji,jj,jk) = respp2(ji,jj,jk) |
---|
84 | & *trn(ji,jj,jk,jpdfe)*zfact |
---|
85 | |
---|
86 | respdch(ji,jj,jk)=respp2(ji,jj,jk) |
---|
87 | & *trn(ji,jj,jk,jpdch)*zfact |
---|
88 | C |
---|
89 | C Phytoplankton mortality. |
---|
90 | C ------------------------ |
---|
91 | C |
---|
92 | tortp2(ji,jj,jk) = mprat2*zstep*trn(ji,jj,jk,jpdia) |
---|
93 | & /(xkmort+trn(ji,jj,jk,jpdia))*compadi |
---|
94 | # if defined key_off_degrad |
---|
95 | & *facvol(ji,jj,jk) |
---|
96 | # endif |
---|
97 | |
---|
98 | tortds(ji,jj,jk) = tortp2(ji,jj,jk) |
---|
99 | & *trn(ji,jj,jk,jpbsi)*zfact |
---|
100 | |
---|
101 | tortdf(ji,jj,jk)=tortp2(ji,jj,jk) |
---|
102 | & *trn(ji,jj,jk,jpdfe)*zfact |
---|
103 | |
---|
104 | tortdch(ji,jj,jk)=tortp2(ji,jj,jk) |
---|
105 | & *trn(ji,jj,jk,jpdch)*zfact |
---|
106 | C |
---|
107 | END DO |
---|
108 | END DO |
---|
109 | END DO |
---|
110 | C |
---|
111 | #endif |
---|
112 | RETURN |
---|
113 | END |
---|