/[MITgcm]/MITgcm/pkg/flt/flt_main.F
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Revision 1.1 - (hide annotations) (download)
Thu Sep 13 17:43:55 2001 UTC (22 years, 8 months ago) by adcroft
Branch: MAIN
CVS Tags: checkpoint46n_post, checkpoint51k_post, checkpoint47e_post, checkpoint57m_post, checkpoint52l_pre, checkpoint44e_post, hrcube4, hrcube5, checkpoint46l_post, checkpoint57g_pre, checkpoint46g_pre, checkpoint47c_post, release1_p13_pre, checkpoint50c_post, checkpoint57s_post, checkpoint58b_post, checkpoint57b_post, checkpoint46f_post, checkpoint52d_pre, checkpoint57g_post, checkpoint48e_post, checkpoint56b_post, checkpoint50c_pre, checkpoint57y_post, checkpoint44f_post, checkpoint46b_post, checkpoint52j_pre, checkpoint43a-release1mods, checkpoint51o_pre, checkpoint54d_post, checkpoint54e_post, ecco_c50_e32, ecco_c50_e33, ecco_c50_e30, ecco_c50_e31, release1_p13, checkpoint51l_post, checkpoint48i_post, checkpoint57r_post, checkpoint46l_pre, checkpoint57d_post, checkpoint57i_post, checkpoint52l_post, checkpoint52k_post, chkpt44d_post, checkpoint59, checkpoint58, checkpoint55, checkpoint54, checkpoint57, checkpoint56, checkpoint51, checkpoint50, checkpoint53, checkpoint52, release1_p8, release1_p9, checkpoint50d_post, release1_p1, release1_p2, release1_p3, release1_p4, release1_p5, release1_p6, release1_p7, checkpoint58f_post, checkpoint52f_post, checkpoint57n_post, checkpoint58d_post, checkpoint58a_post, checkpoint50b_pre, checkpoint44e_pre, checkpoint57z_post, checkpoint54f_post, checkpoint51f_post, release1_b1, ecco_c51_e34d, ecco_c51_e34e, ecco_c51_e34f, ecco_c51_e34g, ecco_c51_e34a, ecco_c51_e34b, ecco_c51_e34c, checkpoint58y_post, checkpoint48b_post, checkpoint43, checkpoint51d_post, checkpoint48c_pre, checkpoint47d_pre, checkpoint51t_post, checkpoint58t_post, checkpoint51n_post, release1_chkpt44d_post, checkpoint55i_post, checkpoint58m_post, checkpoint57l_post, checkpoint52i_pre, hrcube_1, hrcube_2, hrcube_3, checkpoint51s_post, checkpoint47a_post, checkpoint57t_post, checkpoint55c_post, checkpoint48d_pre, checkpoint51j_post, checkpoint47i_post, checkpoint52e_pre, checkpoint57v_post, checkpoint57f_post, checkpoint52e_post, checkpoint51n_pre, checkpoint47d_post, icebear5, icebear4, icebear3, icebear2, checkpoint53d_post, checkpoint46d_pre, checkpoint60, checkpoint61, checkpoint57a_post, checkpoint48d_post, release1-branch_tutorials, checkpoint57h_pre, checkpoint48f_post, checkpoint45d_post, checkpoint52b_pre, checkpoint54b_post, checkpoint46j_pre, checkpoint58w_post, checkpoint57h_post, checkpoint51l_pre, checkpoint52m_post, checkpoint57y_pre, chkpt44a_post, checkpoint55g_post, checkpoint44h_pre, checkpoint48h_post, checkpoint51q_post, ecco_c50_e29, checkpoint51b_pre, checkpoint46a_post, checkpoint47g_post, checkpoint52b_post, checkpoint52c_post, checkpoint46j_post, checkpoint51h_pre, checkpoint46k_post, ecco_c50_e28, chkpt44c_pre, checkpoint58o_post, checkpoint48a_post, checkpoint45a_post, checkpoint57c_post, checkpoint50f_post, checkpoint50a_post, checkpoint50f_pre, checkpoint58p_post, checkpoint58q_post, checkpoint52f_pre, checkpoint55d_post, ecco_c44_e19, ecco_c44_e18, ecco_c44_e17, ecco_c44_e16, release1_p12, checkpoint58e_post, release1_p10, release1_p11, release1_p16, release1_p17, release1_p14, release1_p15, checkpoint47j_post, checkpoint54a_pre, ecco_c50_e33a, checkpoint53c_post, checkpoint55d_pre, checkpoint57c_pre, checkpoint58r_post, checkpoint55j_post, branch-exfmods-tag, checkpoint44g_post, branchpoint-genmake2, checkpoint54a_post, checkpoint46e_pre, checkpoint55h_post, checkpoint58n_post, checkpoint51r_post, checkpoint48c_post, checkpoint45b_post, checkpoint46b_pre, checkpoint51i_post, checkpoint57e_post, release1-branch-end, release1_final_v1, checkpoint55b_post, checkpoint51b_post, checkpoint51c_post, checkpoint46c_pre, checkpoint53a_post, checkpoint46, checkpoint47b_post, checkpoint44b_post, checkpoint59q, checkpoint59p, checkpoint59r, checkpoint59e, checkpoint59d, checkpoint59g, checkpoint59f, checkpoint59a, checkpoint55f_post, checkpoint59c, checkpoint59b, checkpoint59m, checkpoint59l, checkpoint59o, checkpoint59n, checkpoint59i, checkpoint59h, checkpoint59k, ecco_c51_e34, checkpoint46h_pre, checkpoint52d_post, checkpoint53g_post, checkpoint46m_post, checkpoint57p_post, checkpint57u_post, checkpoint46a_pre, checkpoint50g_post, checkpoint45c_post, checkpoint57q_post, ecco_ice2, ecco_ice1, checkpoint44h_post, eckpoint57e_pre, checkpoint46g_post, release1_p12_pre, checkpoint58k_post, checkpoint52a_pre, ecco_c44_e22, checkpoint58v_post, checkpoint50h_post, checkpoint52i_post, checkpoint50e_pre, checkpoint50i_post, ecco_c44_e25, checkpoint51i_pre, checkpoint52h_pre, checkpoint56a_post, checkpoint58l_post, checkpoint53f_post, checkpoint57h_done, checkpoint52j_post, checkpoint47f_post, checkpoint50e_post, chkpt44a_pre, checkpoint46i_post, ecco_c44_e23, ecco_c44_e20, ecco_c44_e21, ecco_c44_e26, ecco_c44_e27, ecco_c44_e24, checkpoint57j_post, checkpoint57f_pre, checkpoint61f, checkpoint46c_post, checkpoint58g_post, ecco-branch-mod1, ecco-branch-mod2, ecco-branch-mod3, ecco-branch-mod4, ecco-branch-mod5, branch-netcdf, checkpoint50d_pre, checkpoint58x_post, checkpoint52n_post, checkpoint53b_pre, checkpoint46e_post, checkpoint59j, release1_beta1, checkpoint58h_post, checkpoint56c_post, checkpoint58j_post, checkpoint51e_post, checkpoint44b_pre, checkpoint42, checkpoint57a_pre, checkpoint40, checkpoint41, checkpoint55a_post, checkpoint47, checkpoint44, checkpoint45, checkpoint48, checkpoint49, checkpoint57o_post, checkpoint46h_post, checkpoint51o_post, checkpoint57k_post, checkpoint51f_pre, chkpt44c_post, checkpoint48g_post, checkpoint53b_post, checkpoint47h_post, checkpoint52a_post, checkpoint57w_post, checkpoint61e, checkpoint44f_pre, checkpoint58i_post, checkpoint51g_post, ecco_c52_e35, checkpoint57x_post, checkpoint46d_post, checkpoint50b_post, checkpoint58c_post, checkpoint58u_post, release1-branch_branchpoint, checkpoint51m_post, checkpoint53d_pre, checkpoint58s_post, checkpoint55e_post, checkpoint61d, checkpoint54c_post, checkpoint61b, checkpoint61c, checkpoint61a, checkpoint51a_post, checkpoint51p_post, checkpoint51u_post
Branch point for: c24_e25_ice, branch-exfmods-curt, release1_final, release1-branch, branch-genmake2, release1, branch-nonh, tg2-branch, ecco-branch, release1_50yr, netcdf-sm0, icebear, checkpoint51n_branch, release1_coupled 
Added package "flt".
 o pkg/flt
 o verification/flt_example
 o visualization of trajectories supplied
 o works but output not available to testscript
1 adcroft 1.1 C $Header: $
2     C $Name: $
3    
4     #include "FLT_CPPOPTIONS.h"
5    
6     c ==================================================================
7     c
8     c Float Package for the MIT Model
9     c
10     c Main Routines:
11     c
12     c o flt_main - Integrates the floats forward and stores
13     c positions and vertical profiles at specific
14     c time intervals.
15     c o flt_init - Initialise the floats
16     c o flt_restart - Writes restart data to file.
17     c
18     c Second Level Subroutines:
19     c
20     c o flt_runga2 - Second order Runga-Kutta inetgration (default)
21     c o flt_exchg - Does a new distribution of floats over tiles
22     c after every integration step.
23     c o flt_up - moves float to the surface (if flag is set)
24     c and stores profiles to file
25     c o flt_down - moves float to its target depth (if flag is set)
26     c o flt_traj - stores positions and data to file
27     c o flt_bilinear - contains blinear interpolation scheme
28     c o flt_functions - contains some functions
29     c o flt_mdsreadvector - modified mdsreadvector to read files
30     c
31     c ToDo:
32     c
33     c o avoid exchanges when arrays empty
34     c o 3D advection of floats
35     c
36     c ==================================================================
37     c
38     c Documentation:
39     c
40     c To be made....
41     c
42     c
43     c started: Arne Biastoch abiastoch@ucsd.edu 10-Jan-2000
44     c (adopted from version written by Detlef Stammer
45     c for the old model code)
46     c
47     c changed: Arne Biastoch abiastoch@ucsd.edu 21-JUN-2001
48     c
49     c ==================================================================
50    
51    
52     subroutine flt_main (
53     I myCurrentIter,
54     I myCurrentTime,
55     I myThid
56     & )
57    
58     c ==================================================================
59     c SUBROUTINE flt_main
60     c ==================================================================
61     c
62     c o This routine steps floats forward in time and samples the model
63     c state at float position every flt_int_traj time steps.
64     c Also moves the float up and down and samples vertical profiles.
65     c
66     c o Uses 2nd or fourth order runga-kutta
67     c o Spatial interpolation is bilinear close to boundaries and otherwise
68     c a polynomial interpolation.
69     c o Particles are kept in grid space (with position of dp taken as
70     c x(south), y(east) grid cell point)
71     c o Calls profile every flt_int_prof time steps; in that event the
72     c profile over the whole water column is written to file and the
73     c float might be moved upwards to the surface (depending on its
74     c configuration).
75     cc
76     c ==================================================================
77     c SUBROUTINE flt_main
78     c ==================================================================
79    
80     #include "EEPARAMS.h"
81     #include "SIZE.h"
82     #include "FLT.h"
83    
84     c == routine arguments ==
85    
86     c mythid - thread number for this instance of the routine.
87    
88     INTEGER myCurrentIter, myThid
89     _RL myCurrentTime
90    
91     c integration of the float trajectories
92     c
93     CALL TIMER_START('FLOATS RUNGA2 [FLT LOOP]',myThid)
94     call flt_runga2(myCurrentIter,myCurrentTime,myThid)
95     CALL TIMER_STOP ('FLOATS RUNGA2 [FLT LOOP]',myThid)
96    
97     c check if exchanges between tiles are necessary
98     c
99     if (Nx .ne. sNx .or. Ny .ne. sNy) then
100     CALL TIMER_START('FLOATS EXCHG [FLT LOOP]',myThid)
101     call flt_exchg(myCurrentIter,myCurrentTime,myThid)
102     CALL TIMER_STOP ('FLOATS EXCHG [FLT LOOP]',myThid)
103     endif
104    
105     c store profiles every flt_int_prof time steps:
106     c and move floats up and down
107     c
108    
109     if (mod(myCurrentTime,flt_int_prof).eq.0.) then
110     CALL TIMER_START('FLOATS UP [FLT LOOP]',myThid)
111     call flt_up(myCurrentIter,myCurrentTime,myThid)
112     CALL TIMER_STOP ('FLOATS UP [FLT LOOP]',myThid)
113     endif
114    
115     CALL TIMER_START('FLOATS DOWN [FLT LOOP]',myThid)
116     call flt_down(MyCurrentIter,myCurrentTime,myThid)
117     CALL TIMER_STOP ('FLOATS DOWN [FLT LOOP]',myThid)
118    
119     c store particles every flt_int_traj timesteps:
120     c
121     if (mod(myCurrentTime,flt_int_traj).eq.0.) then
122     CALL TIMER_START('FLOATS TRAJ [FLT LOOP]',myThid)
123     call flt_traj(myCurrentIter,myCurrentTime,myThid)
124     CALL TIMER_STOP ('FLOATS TRAJ [FLT LOOP]',myThid)
125     endif
126    
127     return
128     end
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