1 | SUBROUTINE user_statistics( mode, sr, tn ) |
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2 | |
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3 | !------------------------------------------------------------------------------! |
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4 | ! Current revisions: |
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5 | ! ----------------- |
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6 | ! |
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7 | ! |
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8 | ! Former revisions: |
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9 | ! ----------------- |
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10 | ! $Id: user_statistics.f90 679 2011-02-02 15:14:14Z raasch $ |
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11 | ! |
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12 | ! 678 2011-02-02 14:31:56Z raasch |
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13 | ! Bugfix: module pegrid was missing |
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14 | ! |
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15 | ! 622 2010-12-10 08:08:13Z raasch |
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16 | ! optional barriers included in order to speed up collective operations |
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17 | ! |
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18 | ! 555 2010-09-07 07:32:53Z raasch |
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19 | ! Bugfix: wrong dimension used for ts_value_l |
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20 | ! |
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21 | ! 493 2010-03-01 08:30:24Z raasch |
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22 | ! Bugfix: timeseries data have to be collected by PE0 |
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23 | ! |
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24 | ! 211 2008-11-11 04:46:24Z raasch |
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25 | ! Former file user_interface.f90 split into one file per subroutine |
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26 | ! |
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27 | ! Description: |
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28 | ! ------------ |
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29 | ! Calculation of user-defined statistics, i.e. horizontally averaged profiles |
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30 | ! and time series. |
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31 | ! This routine is called for every statistic region sr defined by the user, |
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32 | ! but at least for the region "total domain" (sr=0). |
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33 | ! See section 3.5.4 on how to define, calculate, and output user defined |
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34 | ! quantities. |
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35 | !------------------------------------------------------------------------------! |
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36 | |
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37 | USE arrays_3d |
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38 | USE indices |
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39 | USE netcdf_control |
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40 | USE pegrid |
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41 | USE statistics |
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42 | USE user |
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43 | |
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44 | IMPLICIT NONE |
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45 | |
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46 | CHARACTER (LEN=*) :: mode |
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47 | |
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48 | INTEGER :: i, j, k, sr, tn |
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49 | |
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50 | REAL, DIMENSION(dots_num_palm+1:dots_max) :: ts_value_l |
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51 | |
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52 | |
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53 | IF ( mode == 'profiles' ) THEN |
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54 | |
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55 | ! |
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56 | !-- Sample on how to calculate horizontally averaged profiles of user- |
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57 | !-- defined quantities. Each quantity is identified by the index |
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58 | !-- "pr_palm+#" where "#" is an integer starting from 1. These |
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59 | !-- user-profile-numbers must also be assigned to the respective strings |
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60 | !-- given by data_output_pr_user in routine user_check_data_output_pr. |
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61 | ! !$OMP DO |
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62 | ! DO i = nxl, nxr |
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63 | ! DO j = nys, nyn |
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64 | ! DO k = nzb_s_inner(j,i)+1, nzt |
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65 | !! |
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66 | !!-- Sample on how to calculate the profile of the resolved-scale |
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67 | !!-- horizontal momentum flux u*v* |
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68 | ! sums_l(k,pr_palm+1,tn) = sums_l(k,pr_palm+1,tn) + & |
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69 | ! ( 0.5 * ( u(k,j,i) + u(k,j,i+1) ) - hom(k,1,1,sr) ) * & |
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70 | ! ( 0.5 * ( v(k,j,i) + v(k,j+1,i) ) - hom(k,1,2,sr) ) & |
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71 | ! * rmask(j,i,sr) |
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72 | !! |
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73 | !!-- Further profiles can be defined and calculated by increasing |
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74 | !!-- the second index of array sums_l (replace ... appropriately) |
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75 | ! sums_l(k,pr_palm+2,tn) = sums_l(k,pr_palm+2,tn) + ... & |
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76 | ! * rmask(j,i,sr) |
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77 | ! ENDDO |
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78 | ! ENDDO |
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79 | ! ENDDO |
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80 | |
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81 | ELSEIF ( mode == 'time_series' ) THEN |
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82 | |
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83 | ! |
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84 | !-- Sample on how to add values for the user-defined time series quantities. |
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85 | !-- These have to be defined before in routine user_init. This sample |
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86 | !-- creates two time series for the absolut values of the horizontal |
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87 | !-- velocities u and v. |
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88 | ! ts_value_l = 0.0 |
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89 | ! ts_value_l(dots_num_palm+1) = ABS( u_max ) |
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90 | ! ts_value_l(dots_num_palm+2) = ABS( v_max ) |
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91 | ! |
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92 | !-- Collect / send values to PE0, because only PE0 outputs the time series. |
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93 | !-- CAUTION: Collection is done by taking the sum over all processors. |
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94 | !-- You may have to normalize this sum, depending on the quantity |
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95 | !-- that you like to calculate. For serial runs, nothing has to be |
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96 | !-- done. |
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97 | !-- HINT: If the time series value that you are calculating has the same |
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98 | !-- value on all PEs, you can omit the MPI_ALLREDUCE call and |
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99 | !-- assign ts_value(dots_num_palm+1:,sr) = ts_value_l directly. |
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100 | !#if defined( __parallel ) |
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101 | ! IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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102 | ! CALL MPI_ALLREDUCE( ts_value_l(dots_num_palm+1), & |
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103 | ! ts_value(dots_num_palm+1,sr), & |
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104 | ! dots_max-dots_num_palm, MPI_REAL, MPI_SUM, comm2d, & |
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105 | ! ierr ) |
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106 | !#else |
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107 | ! ts_value(dots_num_palm+1:,sr) = ts_value_l |
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108 | !#endif |
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109 | |
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110 | ENDIF |
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111 | |
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112 | END SUBROUTINE user_statistics |
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113 | |
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