[4213] | 1 | !---------------------------------------------------------------------- |
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| 2 | ! NEMO system team, System and Interface for oceanic RElocable Nesting |
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| 3 | !---------------------------------------------------------------------- |
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| 4 | ! |
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| 5 | ! MODULE: interp |
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| 6 | ! |
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| 7 | ! DESCRIPTION: |
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| 8 | !> @brief |
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| 9 | !> This module manage interpolation on regular grid. |
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| 10 | !> |
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[5037] | 11 | !> @details Interpolation method to be used is specify inside variable |
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| 12 | !> strcuture, as array of string character.<br/> |
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| 13 | !> - td_var\%c_interp(1) string character is the interpolation name choose between: |
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| 14 | !> - 'nearest' |
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| 15 | !> - 'cubic ' |
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| 16 | !> - 'linear ' |
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| 17 | !> - td_var\%c_interp(2) string character is an operation to be used |
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| 18 | !> on interpolated value.<br/> |
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| 19 | !> operation have to be mulitplication '*' or division '/'.<br/> |
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| 20 | !> coefficient have to be refinement factor following i-direction 'rhoi', |
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| 21 | !> j-direction 'rhoj', or k-direction 'rhok'.<br/> |
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| 22 | !> |
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| 23 | !> Examples: '*rhoi', '/rhoj'. |
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| 24 | !> |
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| 25 | !> @note Those informations are read from namelist or variable configuration file (default).<br/> |
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| 26 | !> Interplation method could be specify for each variable in namelist _namvar_, |
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| 27 | !> defining string character _cn\_varinfo_.<br/> |
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| 28 | !> Example: |
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[5609] | 29 | !> - cn_varinfo='varname1:int=cubic/rhoi', 'varname2:int=linear' |
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[5037] | 30 | !> |
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| 31 | !> to create mixed grid (with coarse grid point needed to compute |
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| 32 | !> interpolation):<br/> |
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| 33 | !> @code |
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| 34 | !> CALL interp_create_mixed_grid( td_var, td_mix [,id_rho] ) |
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| 35 | !> @endcode |
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| 36 | !> - td_var is coarse grid variable (should be extrapolated) |
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| 37 | !> - td_mix is mixed grid variable structure [output] |
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| 38 | !> - id_rho is array of refinment factor [optional] |
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| 39 | !> |
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| 40 | !> to detected point to be interpolated:<br/> |
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| 41 | !> @code |
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| 42 | !> il_detect(:,:,:)=interp_detect( td_mix [,id_rho] ) |
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| 43 | !> @endcode |
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| 44 | !> - il_detect(:,:,:) is 3D array of detected point to be interpolated |
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| 45 | !> - td_mix is mixed grid variable |
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| 46 | !> - id_rho is array of refinement factor [optional] |
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| 47 | !> |
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| 48 | !> to interpolate variable value:<br/> |
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| 49 | !> @code |
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| 50 | !> CALL interp_fill_value( td_var [,id_rho] [,id_offset] ) |
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| 51 | !> @endcode |
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| 52 | !> - td_var is variable structure |
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| 53 | !> - id_rho is array of refinement factor [optional] |
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| 54 | !> - id_offset is array of offset between fine and coarse grid [optional] |
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| 55 | !> |
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| 56 | !> to clean mixed grid (remove points added on mixed grid to compute interpolation):<br/> |
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| 57 | !> @code |
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| 58 | !> CALL interp_clean_mixed_grid( td_mix, td_var, id_rho ) |
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| 59 | !> @endcode |
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| 60 | !> - td_mix is mixed grid variable structure |
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| 61 | !> - td_var is variable structure [output] |
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| 62 | !> - id_rho is array of refinement factor [optional] |
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| 63 | !> - id_offset is array of offset between fine and coarse grid [optional] |
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| 64 | !> |
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| 65 | !> @note It use to work on ORCA grid, as we work only with grid indices. |
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| 66 | !> |
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[4213] | 67 | !> @warning due to the use of second derivative when using cubic interpolation |
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[5037] | 68 | !> you should add at least 2 extrabands. |
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[4213] | 69 | !> |
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| 70 | !> @author |
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| 71 | !> J.Paul |
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| 72 | ! REVISION HISTORY: |
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[5037] | 73 | !> @date November, 2013 - Initial Version |
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| 74 | !> @date September, 2014 |
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| 75 | !> - add header |
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| 76 | !> - use interpolation method modules |
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| 77 | !> |
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[4213] | 78 | !> @note Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 79 | !---------------------------------------------------------------------- |
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| 80 | MODULE interp |
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| 81 | |
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| 82 | USE netcdf ! nf90 library |
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| 83 | USE global ! global variable |
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| 84 | USE kind ! F90 kind parameter |
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[5037] | 85 | USE logger ! log file manager |
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[4213] | 86 | USE fct ! basic useful function |
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[5037] | 87 | USE date ! date manager |
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[4213] | 88 | USE att ! attribute manager |
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| 89 | USE dim ! dimension manager |
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| 90 | USE var ! variable manager |
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| 91 | USE grid ! grid manager |
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| 92 | USE extrap ! extrapolation manager |
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[5037] | 93 | USE interp_cubic ! cubic interpolation manager |
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| 94 | USE interp_linear ! linear interpolation manager |
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| 95 | USE interp_nearest ! nearest interpolation manager |
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[4213] | 96 | |
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| 97 | IMPLICIT NONE |
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| 98 | ! NOTE_avoid_public_variables_if_possible |
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| 99 | |
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| 100 | ! type and variable |
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| 101 | |
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| 102 | ! function and subroutine |
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| 103 | PUBLIC :: interp_detect !< detected point to be interpolated |
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[5037] | 104 | PUBLIC :: interp_fill_value !< interpolate value |
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[4213] | 105 | PUBLIC :: interp_create_mixed_grid !< create mixed grid |
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| 106 | PUBLIC :: interp_clean_mixed_grid !< clean mixed grid |
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| 107 | |
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[5037] | 108 | PRIVATE :: interp__detect ! detected point to be interpolated |
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| 109 | PRIVATE :: interp__detect_wrapper ! detected point to be interpolated |
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| 110 | PRIVATE :: interp__fill_value_wrapper ! interpolate value over detectected point |
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| 111 | PRIVATE :: interp__fill_value ! interpolate value over detectected point |
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| 112 | PRIVATE :: interp__clean_even_grid ! clean even mixed grid |
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| 113 | PRIVATE :: interp__check_method ! check if interpolation method available |
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[4213] | 114 | |
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| 115 | TYPE TINTERP |
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| 116 | CHARACTER(LEN=lc) :: c_name = '' !< interpolation method name |
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| 117 | CHARACTER(LEN=lc) :: c_factor = '' !< interpolation factor |
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| 118 | CHARACTER(LEN=lc) :: c_divisor= '' !< interpolation divisor |
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| 119 | END TYPE TINTERP |
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| 120 | |
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| 121 | INTERFACE interp_detect |
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[5037] | 122 | MODULE PROCEDURE interp__detect_wrapper |
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[4213] | 123 | END INTERFACE interp_detect |
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| 124 | |
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| 125 | INTERFACE interp_fill_value |
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[5037] | 126 | MODULE PROCEDURE interp__fill_value_wrapper |
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[4213] | 127 | END INTERFACE interp_fill_value |
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| 128 | |
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| 129 | CONTAINS |
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| 130 | !------------------------------------------------------------------- |
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| 131 | !> @brief |
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[5037] | 132 | !> This function check if interpolation method is available. |
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[4213] | 133 | !> |
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| 134 | !> @details |
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[5037] | 135 | !> check if name of interpolation method is present in global list of string |
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| 136 | !> character cp_interp_list (see global.f90). |
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[4213] | 137 | !> |
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| 138 | !> @author J.Paul |
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[5617] | 139 | !> @date November, 2013 - Initial Version |
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[4213] | 140 | ! |
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[5037] | 141 | !> @param[in] cd_method interpolation method |
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[4213] | 142 | !> @return |
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| 143 | !------------------------------------------------------------------- |
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| 144 | FUNCTION interp__check_method( cd_method ) |
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| 145 | IMPLICIT NONE |
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| 146 | ! Argument |
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| 147 | CHARACTER(LEN=lc) :: cd_method |
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| 148 | |
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| 149 | ! function |
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| 150 | LOGICAL :: interp__check_method |
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| 151 | |
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| 152 | ! local variable |
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| 153 | CHARACTER(LEN=lc) :: cl_interp |
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| 154 | CHARACTER(LEN=lc) :: cl_method |
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| 155 | |
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| 156 | ! loop indices |
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| 157 | INTEGER(I4) :: ji |
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| 158 | !---------------------------------------------------------------- |
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| 159 | |
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| 160 | cl_method=fct_lower(cd_method) |
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| 161 | |
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| 162 | interp__check_method=.FALSE. |
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[5037] | 163 | DO ji=1,ip_ninterp |
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| 164 | cl_interp=fct_lower(cp_interp_list(ji)) |
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[4213] | 165 | IF( TRIM(cl_interp) == TRIM(cl_method) )THEN |
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| 166 | interp__check_method=.TRUE. |
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| 167 | EXIT |
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| 168 | ENDIF |
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| 169 | ENDDO |
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| 170 | |
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| 171 | END FUNCTION interp__check_method |
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| 172 | !------------------------------------------------------------------- |
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| 173 | !> @brief |
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| 174 | !> This function detected point to be interpolated. |
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| 175 | !> |
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| 176 | !> @details |
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| 177 | !> Actually it checks, the number of dimension used for this variable |
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| 178 | !> and launch interp__detect which detected point to be interpolated. |
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| 179 | !> |
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| 180 | !> @author J.Paul |
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[5617] | 181 | !> @date November, 2013 - Initial Version |
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[5037] | 182 | !> |
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| 183 | !> @param[in] td_mix mixed grid variable (to interpolate) |
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| 184 | !> @param[in] id_rho array of refinement factor |
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| 185 | !> @return 3D array of detected point to be interpolated |
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[4213] | 186 | !------------------------------------------------------------------- |
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| 187 | FUNCTION interp__detect_wrapper( td_mix, id_rho ) |
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| 188 | IMPLICIT NONE |
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| 189 | ! Argument |
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| 190 | TYPE(TVAR) , INTENT(IN) :: td_mix |
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| 191 | INTEGER(I4), DIMENSION(:), INTENT(IN), OPTIONAL :: id_rho |
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| 192 | |
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| 193 | ! function |
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| 194 | INTEGER(i4), DIMENSION(td_mix%t_dim(1)%i_len,& |
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| 195 | & td_mix%t_dim(2)%i_len,& |
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| 196 | & td_mix%t_dim(3)%i_len ) :: interp__detect_wrapper |
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| 197 | |
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| 198 | ! local variable |
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| 199 | ! loop indices |
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| 200 | !---------------------------------------------------------------- |
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| 201 | |
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| 202 | IF( .NOT. ANY(td_mix%t_dim(1:3)%l_use) )THEN |
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| 203 | ! no dimension I-J-K used |
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| 204 | CALL logger_debug(" INTERP DETECT: nothing done for variable"//& |
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| 205 | & TRIM(td_mix%c_name) ) |
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| 206 | |
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| 207 | interp__detect_wrapper(:,:,:)=0 |
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| 208 | |
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| 209 | ELSE IF( ALL(td_mix%t_dim(1:3)%l_use) )THEN |
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| 210 | |
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| 211 | ! detect point to be interpolated on I-J-K |
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| 212 | CALL logger_debug(" INTERP DETECT: detect point "//& |
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| 213 | & TRIM(td_mix%c_point)//" for variable "//& |
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| 214 | & TRIM(td_mix%c_name) ) |
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| 215 | |
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| 216 | interp__detect_wrapper(:,:,:)=interp__detect( td_mix, id_rho(:) ) |
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| 217 | |
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| 218 | ELSE IF( ALL(td_mix%t_dim(1:2)%l_use) )THEN |
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| 219 | |
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| 220 | ! detect point to be interpolated on I-J |
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| 221 | CALL logger_debug(" INTERP DETECT: detect point "//& |
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| 222 | & TRIM(td_mix%c_point)//" for variable "//& |
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| 223 | & TRIM(td_mix%c_name) ) |
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| 224 | |
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| 225 | interp__detect_wrapper(:,:,1:1)=interp__detect( td_mix, id_rho(:)) |
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| 226 | |
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| 227 | ELSE IF( td_mix%t_dim(3)%l_use )THEN |
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| 228 | |
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| 229 | ! detect point to be interpolated on K |
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| 230 | CALL logger_debug(" INTERP DETECT: detect vertical point "//& |
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| 231 | & " for variable "//TRIM(td_mix%c_name) ) |
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| 232 | |
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| 233 | interp__detect_wrapper(1:1,1:1,:)=interp__detect( td_mix, id_rho(:) ) |
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| 234 | |
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| 235 | ENDIF |
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| 236 | |
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| 237 | END FUNCTION interp__detect_wrapper |
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| 238 | !------------------------------------------------------------------- |
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| 239 | !> @brief |
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| 240 | !> This function detected point to be interpolated. |
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| 241 | !> |
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| 242 | !> @details |
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| 243 | !> A special case is done for even refinement on ARAKAWA-C grid. |
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| 244 | !> |
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| 245 | !> @author J.Paul |
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[5617] | 246 | !> @date November, 2013 - Initial Version |
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[4213] | 247 | ! |
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[5037] | 248 | !> @param[in] td_mix mixed grid variable (to interpolate) |
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| 249 | !> @param[in] id_rho array of refinement factor |
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| 250 | !> @return 3D array of detected point to be interpolated |
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[4213] | 251 | !------------------------------------------------------------------- |
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| 252 | FUNCTION interp__detect( td_mix, id_rho ) |
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| 253 | IMPLICIT NONE |
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| 254 | ! Argument |
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| 255 | TYPE(TVAR) , INTENT(IN) :: td_mix |
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| 256 | INTEGER(I4), DIMENSION(:), INTENT(IN), OPTIONAL :: id_rho |
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| 257 | |
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| 258 | ! function |
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| 259 | INTEGER(i4), DIMENSION(td_mix%t_dim(1)%i_len,& |
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| 260 | & td_mix%t_dim(2)%i_len,& |
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| 261 | & td_mix%t_dim(3)%i_len ) :: interp__detect |
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| 262 | |
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| 263 | ! local variable |
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| 264 | INTEGER(I4), DIMENSION(:), ALLOCATABLE :: il_rho |
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| 265 | |
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| 266 | INTEGER(I4) :: il_xextra |
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| 267 | INTEGER(I4) :: il_yextra |
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| 268 | INTEGER(I4) :: il_zextra |
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| 269 | |
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| 270 | INTEGER(i4), DIMENSION(3) :: il_dim |
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| 271 | |
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| 272 | LOGICAL , DIMENSION(3) :: ll_even |
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| 273 | |
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| 274 | ! loop indices |
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| 275 | INTEGER(I4) :: ji |
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| 276 | INTEGER(I4) :: jj |
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| 277 | INTEGER(I4) :: jk |
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| 278 | !---------------------------------------------------------------- |
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| 279 | ALLOCATE( il_rho(ip_maxdim) ) |
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| 280 | il_rho(:)=1 |
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[5037] | 281 | IF( PRESENT(id_rho) ) il_rho(1:SIZE(id_rho(:)))=id_rho(:) |
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[4213] | 282 | |
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| 283 | ! special case for even refinement on ARAKAWA-C grid |
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| 284 | ll_even(:)=.FALSE. |
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| 285 | IF( MOD(il_rho(jp_I),2) == 0 ) ll_even(1)=.TRUE. |
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| 286 | IF( MOD(il_rho(jp_J),2) == 0 ) ll_even(2)=.TRUE. |
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| 287 | IF( MOD(il_rho(jp_K),2) == 0 ) ll_even(3)=.TRUE. |
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| 288 | |
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| 289 | SELECT CASE(TRIM(td_mix%c_point)) |
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| 290 | CASE('U') |
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| 291 | ll_even(1)=.FALSE. |
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| 292 | CASE('V') |
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| 293 | ll_even(2)=.FALSE. |
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| 294 | CASE('F') |
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| 295 | ll_even(:)=.FALSE. |
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| 296 | END SELECT |
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| 297 | |
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| 298 | IF( ll_even(1) ) il_rho(jp_I)=il_rho(jp_I)+1 |
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| 299 | IF( ll_even(2) ) il_rho(jp_J)=il_rho(jp_J)+1 |
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| 300 | IF( ll_even(3) ) il_rho(jp_K)=il_rho(jp_K)+1 |
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| 301 | |
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| 302 | ! special case for cubic interpolation |
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| 303 | il_xextra=0 |
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| 304 | il_yextra=0 |
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| 305 | il_zextra=0 |
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| 306 | SELECT CASE(TRIM(td_mix%c_interp(1))) |
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| 307 | CASE('cubic') |
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| 308 | ! those points can not be compute cause cubic interpolation |
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| 309 | ! need second derivative. |
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| 310 | IF( il_rho(jp_I) /= 1 ) il_xextra=3*il_rho(jp_I) |
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| 311 | IF( il_rho(jp_J) /= 1 ) il_yextra=3*il_rho(jp_J) |
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| 312 | IF( il_rho(jp_K) /= 1 ) il_zextra=3*il_rho(jp_K) |
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| 313 | END SELECT |
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| 314 | |
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| 315 | il_dim(:)=td_mix%t_dim(1:3)%i_len |
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| 316 | |
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[5037] | 317 | ! init |
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[4213] | 318 | interp__detect(:,:,:)=1 |
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| 319 | |
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| 320 | ! do not compute coarse grid point |
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| 321 | interp__detect(1:td_mix%t_dim(1)%i_len:il_rho(jp_I), & |
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| 322 | & 1:td_mix%t_dim(2)%i_len:il_rho(jp_J), & |
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| 323 | & 1:td_mix%t_dim(3)%i_len:il_rho(jp_K) ) = 0 |
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| 324 | |
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| 325 | ! do not compute point near fill value |
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[5037] | 326 | DO jk=1,il_dim(3),il_rho(jp_K) |
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| 327 | DO jj=1,il_dim(2),il_rho(jp_J) |
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| 328 | DO ji=1,il_dim(1),il_rho(jp_I) |
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[4213] | 329 | |
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[5037] | 330 | IF( td_mix%d_value(ji,jj,jk,1) == td_mix%d_fill )THEN |
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[4213] | 331 | |
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[5037] | 332 | ! i-direction |
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| 333 | interp__detect(MAX(1,ji-il_xextra):MIN(ji+il_xextra,il_dim(1)),& |
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| 334 | & MAX(1,jj-(il_rho(jp_J)-1)):MIN(jj+(il_rho(jp_J)-1),il_dim(2)),& |
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| 335 | & MAX(1,jk-(il_rho(jp_K)-1)):MIN(jk+(il_rho(jp_K)-1),il_dim(3)) )=0 |
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| 336 | ! j-direction |
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| 337 | interp__detect(MAX(1,ji-(il_rho(jp_I)-1)):MIN(ji+(il_rho(jp_I)-1),il_dim(1)),& |
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| 338 | & MAX(1,jj-il_yextra):MIN(jj+il_yextra,il_dim(2)),& |
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| 339 | & MAX(1,jk-(il_rho(jp_K)-1)):MIN(jk+(il_rho(jp_K)-1),il_dim(3)) )=0 |
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| 340 | ! k-direction |
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| 341 | interp__detect(MAX(1,ji-(il_rho(jp_I)-1)):MIN(ji+(il_rho(jp_I)-1),il_dim(1)),& |
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| 342 | & MAX(1,jj-(il_rho(jp_J)-1)):MIN(jj+(il_rho(jp_J)-1),il_dim(2)),& |
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| 343 | & MAX(1,jk-il_zextra):MIN(jk+il_zextra,il_dim(3)) )=0 |
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[4213] | 344 | |
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[5037] | 345 | ENDIF |
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| 346 | |
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| 347 | ENDDO |
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| 348 | ENDDO |
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| 349 | ENDDO |
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| 350 | |
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| 351 | DEALLOCATE( il_rho ) |
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| 352 | |
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[4213] | 353 | END FUNCTION interp__detect |
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| 354 | !------------------------------------------------------------------- |
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| 355 | !> @brief |
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| 356 | !> This subroutine create mixed grid. |
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| 357 | !> |
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| 358 | !> @details |
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| 359 | !> Created grid is fine resolution grid. |
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| 360 | !> First and last point are coasre grid point. |
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| 361 | !> |
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| 362 | !> A special case is done for even refinement on ARAKAWA-C grid. |
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| 363 | !> |
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| 364 | !> @author J.Paul |
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[5617] | 365 | !> @date November, 2013 - Initial Version |
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[4213] | 366 | !> |
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[5037] | 367 | !> @param[in] td_var coarse grid variable (should be extrapolated) |
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| 368 | !> @param[out] td_mix mixed grid variable |
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| 369 | !> @param[in] id_rho array of refinment factor (default 1) |
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[4213] | 370 | !------------------------------------------------------------------- |
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| 371 | SUBROUTINE interp_create_mixed_grid( td_var, td_mix, id_rho ) |
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| 372 | IMPLICIT NONE |
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| 373 | ! Argument |
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| 374 | TYPE(TVAR) , INTENT(IN ) :: td_var |
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| 375 | TYPE(TVAR) , INTENT( OUT) :: td_mix |
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| 376 | INTEGER(I4), DIMENSION(:), INTENT(IN ), OPTIONAL :: id_rho |
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| 377 | |
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| 378 | ! local variable |
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| 379 | INTEGER(I4), DIMENSION(:), ALLOCATABLE :: il_rho |
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| 380 | |
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| 381 | INTEGER(i4) :: il_xextra |
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| 382 | INTEGER(i4) :: il_yextra |
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| 383 | INTEGER(i4) :: il_zextra |
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| 384 | |
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| 385 | LOGICAL, DIMENSION(3) :: ll_even |
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| 386 | |
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| 387 | ! loop indices |
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| 388 | !---------------------------------------------------------------- |
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| 389 | ALLOCATE(il_rho(ip_maxdim)) |
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| 390 | il_rho(:)=1 |
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[5037] | 391 | IF( PRESENT(id_rho) ) il_rho(1:SIZE(id_rho(:)))=id_rho(:) |
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[4213] | 392 | |
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| 393 | ! special case for even refinement on ARAKAWA-C grid |
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| 394 | ll_even(:)=.FALSE. |
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| 395 | IF( MOD(il_rho(jp_I),2) == 0 ) ll_even(1)=.TRUE. |
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| 396 | IF( MOD(il_rho(jp_J),2) == 0 ) ll_even(2)=.TRUE. |
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| 397 | IF( MOD(il_rho(jp_K),2) == 0 ) ll_even(3)=.TRUE. |
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| 398 | |
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| 399 | SELECT CASE(TRIM(td_var%c_point)) |
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| 400 | CASE('U') |
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| 401 | ll_even(1)=.FALSE. |
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| 402 | CASE('V') |
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| 403 | ll_even(2)=.FALSE. |
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| 404 | CASE('F') |
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| 405 | ll_even(:)=.FALSE. |
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| 406 | END SELECT |
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| 407 | |
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| 408 | IF( ll_even(1) ) il_rho(jp_I)=il_rho(jp_I)+1 |
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| 409 | IF( ll_even(2) ) il_rho(jp_J)=il_rho(jp_J)+1 |
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| 410 | IF( ll_even(3) ) il_rho(jp_K)=il_rho(jp_K)+1 |
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| 411 | |
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| 412 | ! copy variable |
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[5037] | 413 | td_mix=var_copy(td_var) |
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[4213] | 414 | |
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| 415 | ! compute new dimension length |
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| 416 | il_xextra=il_rho(jp_I)-1 |
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| 417 | td_mix%t_dim(1)%i_len=td_mix%t_dim(1)%i_len*il_rho(jp_I)-il_xextra |
---|
| 418 | |
---|
| 419 | il_yextra=il_rho(jp_J)-1 |
---|
| 420 | td_mix%t_dim(2)%i_len=td_mix%t_dim(2)%i_len*il_rho(jp_J)-il_yextra |
---|
| 421 | |
---|
| 422 | il_zextra=il_rho(jp_K)-1 |
---|
| 423 | td_mix%t_dim(3)%i_len=td_mix%t_dim(3)%i_len*il_rho(jp_K)-il_zextra |
---|
| 424 | |
---|
| 425 | IF( ASSOCIATED(td_mix%d_value) ) DEALLOCATE( td_mix%d_value ) |
---|
| 426 | ALLOCATE( td_mix%d_value( td_mix%t_dim(1)%i_len, & |
---|
| 427 | & td_mix%t_dim(2)%i_len, & |
---|
| 428 | & td_mix%t_dim(3)%i_len, & |
---|
| 429 | & td_mix%t_dim(4)%i_len) ) |
---|
| 430 | |
---|
| 431 | ! initialise to FillValue |
---|
| 432 | td_mix%d_value(:,:,:,:)=td_mix%d_fill |
---|
| 433 | |
---|
| 434 | ! quid qd coord ou bathy fourni par user ?? (offset ??) |
---|
| 435 | td_mix%d_value(1:td_mix%t_dim(1)%i_len:il_rho(jp_I), & |
---|
| 436 | & 1:td_mix%t_dim(2)%i_len:il_rho(jp_J), & |
---|
| 437 | & 1:td_mix%t_dim(3)%i_len:il_rho(jp_K), :) = & |
---|
| 438 | & td_var%d_value(:,:,:,:) |
---|
| 439 | |
---|
[5037] | 440 | DEALLOCATE(il_rho) |
---|
| 441 | |
---|
[4213] | 442 | END SUBROUTINE interp_create_mixed_grid |
---|
| 443 | !------------------------------------------------------------------- |
---|
| 444 | !> @brief |
---|
| 445 | !> This subroutine remove points added to mixed grid to compute |
---|
| 446 | !> interpolation in the special case of even refinement on ARAKAWA-C grid. |
---|
| 447 | !> |
---|
| 448 | !> @details |
---|
| 449 | !> |
---|
| 450 | !> @author J.Paul |
---|
[5617] | 451 | !> @date November, 2013 - Initial Version |
---|
[4213] | 452 | !> |
---|
[5037] | 453 | !> @param[inout] td_mix mixed grid variable |
---|
| 454 | !> @param[in] id_rho array of refinment factor |
---|
[4213] | 455 | !------------------------------------------------------------------- |
---|
| 456 | SUBROUTINE interp__clean_even_grid( td_mix, id_rho ) |
---|
| 457 | IMPLICIT NONE |
---|
| 458 | ! Argument |
---|
[5037] | 459 | TYPE(TVAR) , INTENT(INOUT) :: td_mix |
---|
[4213] | 460 | INTEGER(I4), DIMENSION(:), INTENT(IN ), OPTIONAL :: id_rho |
---|
| 461 | |
---|
| 462 | ! local variable |
---|
| 463 | INTEGER(I4), DIMENSION(:), ALLOCATABLE :: il_rho |
---|
| 464 | |
---|
| 465 | INTEGER(i4) :: il_xextra |
---|
| 466 | INTEGER(i4) :: il_yextra |
---|
| 467 | INTEGER(i4) :: il_zextra |
---|
| 468 | |
---|
| 469 | LOGICAL, DIMENSION(3) :: ll_even |
---|
| 470 | |
---|
| 471 | LOGICAL, DIMENSION(:,:,:,:), ALLOCATABLE :: ll_mask |
---|
| 472 | |
---|
| 473 | REAL(dp), DIMENSION(:) , ALLOCATABLE :: dl_vect |
---|
| 474 | |
---|
| 475 | TYPE(TVAR) :: tl_mix |
---|
| 476 | |
---|
| 477 | ! loop indices |
---|
| 478 | !---------------------------------------------------------------- |
---|
| 479 | ALLOCATE(il_rho(ip_maxdim)) |
---|
| 480 | il_rho(:)=1 |
---|
| 481 | IF( PRESENT(id_rho) ) il_rho(:)=id_rho(:) |
---|
| 482 | |
---|
| 483 | ! special case for even refinement on ARAKAWA-C grid |
---|
| 484 | ll_even(:)=.FALSE. |
---|
| 485 | IF( MOD(il_rho(jp_I),2) == 0 ) ll_even(1)=.TRUE. |
---|
| 486 | IF( MOD(il_rho(jp_J),2) == 0 ) ll_even(2)=.TRUE. |
---|
| 487 | IF( MOD(il_rho(jp_K),2) == 0 ) ll_even(3)=.TRUE. |
---|
| 488 | |
---|
| 489 | SELECT CASE(TRIM(td_mix%c_point)) |
---|
| 490 | CASE('U') |
---|
| 491 | ll_even(1)=.FALSE. |
---|
| 492 | CASE('V') |
---|
| 493 | ll_even(2)=.FALSE. |
---|
| 494 | CASE('F') |
---|
| 495 | ll_even(:)=.FALSE. |
---|
| 496 | END SELECT |
---|
| 497 | |
---|
| 498 | ! remove some point only if refinement in some direction is even |
---|
| 499 | IF( ANY(ll_even(:)) )THEN |
---|
| 500 | |
---|
[5037] | 501 | ! copy variable |
---|
| 502 | tl_mix=var_copy(td_mix) |
---|
| 503 | |
---|
[4213] | 504 | ALLOCATE( ll_mask( tl_mix%t_dim(1)%i_len, & |
---|
| 505 | & tl_mix%t_dim(2)%i_len, & |
---|
| 506 | & tl_mix%t_dim(3)%i_len, & |
---|
| 507 | & tl_mix%t_dim(4)%i_len) ) |
---|
| 508 | |
---|
| 509 | ll_mask(:,:,:,:)=.TRUE. |
---|
| 510 | |
---|
| 511 | IF( tl_mix%t_dim(1)%l_use .AND. ll_even(1) )THEN |
---|
| 512 | |
---|
| 513 | il_rho(jp_I)=il_rho(jp_I)+1 |
---|
| 514 | |
---|
| 515 | ! locate wrong point on mixed grid |
---|
| 516 | ll_mask(1:td_mix%t_dim(1)%i_len:il_rho(jp_I),:,:,:)=.FALSE. |
---|
| 517 | |
---|
| 518 | ! compute coasre grid dimension length |
---|
| 519 | il_xextra=il_rho(jp_I)-1 |
---|
| 520 | td_mix%t_dim(1)%i_len=(tl_mix%t_dim(1)%i_len+il_xextra)/il_rho(jp_I) |
---|
| 521 | |
---|
| 522 | il_rho(jp_I)=il_rho(jp_I)-1 |
---|
| 523 | ! compute right fine grid dimension length |
---|
| 524 | td_mix%t_dim(1)%i_len=td_mix%t_dim(1)%i_len*il_rho(jp_I)-il_xextra |
---|
| 525 | |
---|
| 526 | ENDIF |
---|
| 527 | |
---|
| 528 | IF( tl_mix%t_dim(2)%l_use .AND. ll_even(2) )THEN |
---|
| 529 | |
---|
| 530 | il_rho(jp_J)=il_rho(jp_J)+1 |
---|
| 531 | |
---|
| 532 | ! locate wrong point on mixed grid |
---|
| 533 | ll_mask(:,1:tl_mix%t_dim(2)%i_len:il_rho(jp_J),:,:)=.FALSE. |
---|
| 534 | |
---|
| 535 | ! compute coasre grid dimension length |
---|
| 536 | il_yextra=il_rho(jp_J)-1 |
---|
| 537 | td_mix%t_dim(2)%i_len=(tl_mix%t_dim(2)%i_len+il_yextra)/il_rho(jp_J) |
---|
| 538 | |
---|
| 539 | il_rho(jp_J)=il_rho(jp_J)-1 |
---|
| 540 | ! compute right fine grid dimension length |
---|
| 541 | td_mix%t_dim(2)%i_len=td_mix%t_dim(2)%i_len*il_rho(jp_J)-il_yextra |
---|
| 542 | |
---|
| 543 | ENDIF |
---|
| 544 | |
---|
| 545 | IF( tl_mix%t_dim(3)%l_use .AND. ll_even(3) )THEN |
---|
| 546 | |
---|
| 547 | il_rho(jp_K)=il_rho(jp_K)+1 |
---|
| 548 | |
---|
| 549 | ! locate wrong point on mixed grid |
---|
| 550 | ll_mask(:,:,1:tl_mix%t_dim(3)%i_len:il_rho(jp_K),:)=.FALSE. |
---|
| 551 | |
---|
| 552 | ! compute coasre grid dimension length |
---|
| 553 | il_zextra=il_rho(jp_K)-1 |
---|
| 554 | td_mix%t_dim(3)%i_len=(tl_mix%t_dim(3)%i_len+il_zextra)/il_rho(jp_K) |
---|
| 555 | |
---|
| 556 | il_rho(jp_K)=il_rho(jp_K)-1 |
---|
| 557 | ! compute right fine grid dimension length |
---|
| 558 | td_mix%t_dim(3)%i_len=td_mix%t_dim(3)%i_len*il_rho(jp_K)-il_zextra |
---|
| 559 | |
---|
| 560 | ENDIF |
---|
| 561 | |
---|
| 562 | IF( ASSOCIATED(td_mix%d_value) ) DEALLOCATE( td_mix%d_value ) |
---|
| 563 | ALLOCATE( td_mix%d_value( td_mix%t_dim(1)%i_len, & |
---|
| 564 | & td_mix%t_dim(2)%i_len, & |
---|
| 565 | & td_mix%t_dim(3)%i_len, & |
---|
| 566 | & td_mix%t_dim(4)%i_len) ) |
---|
| 567 | |
---|
| 568 | ! initialise to FillValue |
---|
| 569 | td_mix%d_value(:,:,:,:)=td_mix%d_fill |
---|
| 570 | |
---|
| 571 | IF( COUNT(ll_mask(:,:,:,:)) /= SIZE(td_mix%d_value(:,:,:,:)) )THEN |
---|
| 572 | |
---|
| 573 | CALL logger_error("INTERP CLEAN EVEN GRID: output value size "//& |
---|
| 574 | & " and mask count differ ") |
---|
| 575 | |
---|
| 576 | ELSE |
---|
| 577 | |
---|
| 578 | ALLOCATE( dl_vect(COUNT(ll_mask(:,:,:,:))) ) |
---|
| 579 | |
---|
| 580 | dl_vect(:)= PACK( tl_mix%d_value(:,:,:,:), & |
---|
| 581 | & MASK=ll_mask(:,:,:,:) ) |
---|
| 582 | |
---|
| 583 | td_mix%d_value(:,:,:,:)=RESHAPE( dl_vect(:), & |
---|
[5037] | 584 | & SHAPE=(/td_mix%t_dim(1)%i_len, & |
---|
| 585 | & td_mix%t_dim(2)%i_len, & |
---|
| 586 | & td_mix%t_dim(3)%i_len, & |
---|
| 587 | & td_mix%t_dim(4)%i_len/) ) |
---|
[4213] | 588 | |
---|
| 589 | DEALLOCATE( dl_vect ) |
---|
| 590 | |
---|
| 591 | ENDIF |
---|
| 592 | |
---|
| 593 | DEALLOCATE( ll_mask ) |
---|
| 594 | |
---|
[5037] | 595 | ! clean |
---|
| 596 | CALL var_clean(tl_mix) |
---|
| 597 | |
---|
[4213] | 598 | ENDIF |
---|
| 599 | |
---|
[5037] | 600 | ! clean |
---|
| 601 | DEALLOCATE(il_rho) |
---|
[4213] | 602 | |
---|
| 603 | END SUBROUTINE interp__clean_even_grid |
---|
| 604 | !------------------------------------------------------------------- |
---|
| 605 | !> @brief |
---|
[5037] | 606 | !> This subroutine remove points added on mixed grid |
---|
| 607 | !> to compute interpolation. And save interpolated value over domain. |
---|
[4213] | 608 | !> |
---|
| 609 | !> @details |
---|
| 610 | !> |
---|
| 611 | !> @author J.Paul |
---|
[5617] | 612 | !> @date November, 2013 - Initial Version |
---|
[5037] | 613 | !> @date September, 2014 |
---|
| 614 | !> - use offset to save useful domain |
---|
| 615 | !> |
---|
| 616 | !> @param[in] td_mix mixed grid variable structure |
---|
| 617 | !> @param[out] td_var variable structure |
---|
| 618 | !> @param[in] id_rho array of refinement factor (default 1) |
---|
| 619 | !> @param[in] id_offset 2D array of offset between fine and coarse grid |
---|
[4213] | 620 | !------------------------------------------------------------------- |
---|
| 621 | SUBROUTINE interp_clean_mixed_grid( td_mix, td_var, & |
---|
[5037] | 622 | & id_rho, id_offset ) |
---|
[4213] | 623 | IMPLICIT NONE |
---|
| 624 | ! Argument |
---|
| 625 | TYPE(TVAR) , INTENT(IN ) :: td_mix |
---|
| 626 | TYPE(TVAR) , INTENT( OUT) :: td_var |
---|
[5037] | 627 | INTEGER(I4), DIMENSION(:) , INTENT(IN ) :: id_rho |
---|
| 628 | INTEGER(I4), DIMENSION(2,2), INTENT(IN ) :: id_offset |
---|
[4213] | 629 | |
---|
| 630 | ! local variable |
---|
| 631 | INTEGER(i4) :: il_imin0 |
---|
| 632 | INTEGER(i4) :: il_imax0 |
---|
| 633 | INTEGER(i4) :: il_jmin0 |
---|
| 634 | INTEGER(i4) :: il_jmax0 |
---|
| 635 | |
---|
| 636 | INTEGER(i4) :: il_imin1 |
---|
| 637 | INTEGER(i4) :: il_jmin1 |
---|
| 638 | INTEGER(i4) :: il_imax1 |
---|
| 639 | INTEGER(i4) :: il_jmax1 |
---|
| 640 | |
---|
| 641 | REAL(dp), DIMENSION(:,:,:,:) , ALLOCATABLE :: dl_value |
---|
| 642 | |
---|
| 643 | TYPE(TVAR) :: tl_mix |
---|
| 644 | |
---|
| 645 | ! loop indices |
---|
| 646 | !---------------------------------------------------------------- |
---|
| 647 | ! copy mixed variable in temporary structure |
---|
[5037] | 648 | tl_mix=var_copy(td_mix) |
---|
[4213] | 649 | |
---|
| 650 | ! remove unusefull points over mixed grid for even refinement |
---|
| 651 | CALL interp__clean_even_grid(tl_mix, id_rho(:)) |
---|
| 652 | |
---|
| 653 | ! copy cleaned mixed variable |
---|
[5037] | 654 | td_var=var_copy(tl_mix) |
---|
[4213] | 655 | |
---|
[5037] | 656 | ! delete array of value |
---|
| 657 | CALL var_del_value(td_var) |
---|
[4213] | 658 | |
---|
[5037] | 659 | ! compute domain indices in i-direction |
---|
| 660 | il_imin0=1 ; il_imax0=td_var%t_dim(1)%i_len |
---|
| 661 | |
---|
| 662 | IF( td_var%t_dim(1)%l_use )THEN |
---|
| 663 | il_imin1=il_imin0+id_offset(Jp_I,1) |
---|
| 664 | il_imax1=il_imax0-id_offset(Jp_I,2) |
---|
| 665 | ELSE |
---|
[4213] | 666 | |
---|
[5037] | 667 | il_imin1=il_imin0 |
---|
| 668 | il_imax1=il_imax0 |
---|
[4213] | 669 | |
---|
[5037] | 670 | ENDIF |
---|
[4213] | 671 | |
---|
[5037] | 672 | ! compute domain indices in j-direction |
---|
| 673 | il_jmin0=1 ; il_jmax0=td_var%t_dim(2)%i_len |
---|
[4213] | 674 | |
---|
[5037] | 675 | IF( td_var%t_dim(2)%l_use )THEN |
---|
| 676 | il_jmin1=il_jmin0+id_offset(Jp_J,1) |
---|
| 677 | il_jmax1=il_jmax0-id_offset(Jp_J,2) |
---|
| 678 | ELSE |
---|
[4213] | 679 | |
---|
[5037] | 680 | il_jmin1=il_jmin0 |
---|
| 681 | il_jmax1=il_jmax0 |
---|
| 682 | |
---|
| 683 | ENDIF |
---|
[4213] | 684 | |
---|
[5037] | 685 | ! compute new dimension |
---|
| 686 | td_var%t_dim(1)%i_len=il_imax1-il_imin1+1 |
---|
| 687 | td_var%t_dim(2)%i_len=il_jmax1-il_jmin1+1 |
---|
| 688 | |
---|
| 689 | ALLOCATE(dl_value(td_var%t_dim(1)%i_len, & |
---|
| 690 | & td_var%t_dim(2)%i_len, & |
---|
| 691 | & td_var%t_dim(3)%i_len, & |
---|
| 692 | & td_var%t_dim(4)%i_len) ) |
---|
[4213] | 693 | |
---|
[5037] | 694 | dl_value( 1:td_var%t_dim(1)%i_len, & |
---|
| 695 | & 1:td_var%t_dim(2)%i_len, & |
---|
| 696 | & :,:) = tl_mix%d_value( il_imin1:il_imax1, & |
---|
| 697 | & il_jmin1:il_jmax1, & |
---|
| 698 | & :, : ) |
---|
[4213] | 699 | |
---|
[5037] | 700 | ! add variable value |
---|
| 701 | CALL var_add_value(td_var,dl_value(:,:,:,:)) |
---|
[4213] | 702 | |
---|
[5037] | 703 | DEALLOCATE(dl_value) |
---|
| 704 | |
---|
| 705 | ! clean |
---|
[4213] | 706 | CALL var_clean(tl_mix) |
---|
| 707 | |
---|
| 708 | END SUBROUTINE interp_clean_mixed_grid |
---|
| 709 | !------------------------------------------------------------------- |
---|
| 710 | !> @brief |
---|
[5037] | 711 | !> This subroutine interpolate variable value. |
---|
[4213] | 712 | !> |
---|
| 713 | !> @details |
---|
| 714 | !> Actually it checks, the number of dimension used for this variable |
---|
| 715 | !> and launch interp__fill_value. |
---|
| 716 | !> |
---|
| 717 | !> @author J.Paul |
---|
[5617] | 718 | !> @date November, 2013 - Initial Version |
---|
[5037] | 719 | !> |
---|
| 720 | !> @param[inout] td_var variable structure |
---|
| 721 | !> @param[in] id_rho array of refinement factor |
---|
| 722 | !> @param[in] id_offset 2D array of offset between fine and coarse grid |
---|
[4213] | 723 | !------------------------------------------------------------------- |
---|
| 724 | SUBROUTINE interp__fill_value_wrapper( td_var, & |
---|
| 725 | & id_rho, & |
---|
| 726 | & id_offset ) |
---|
| 727 | IMPLICIT NONE |
---|
| 728 | ! Argument |
---|
| 729 | TYPE(TVAR) , INTENT(INOUT) :: td_var |
---|
[5037] | 730 | INTEGER(I4), DIMENSION(:) , INTENT(IN ), OPTIONAL :: id_rho |
---|
[4213] | 731 | INTEGER(I4), DIMENSION(:,:), INTENT(IN ), OPTIONAL :: id_offset |
---|
| 732 | |
---|
| 733 | ! local variable |
---|
[5037] | 734 | CHARACTER(LEN=lc) :: cl_method |
---|
| 735 | INTEGER(i4) , DIMENSION(:), ALLOCATABLE :: il_rho |
---|
| 736 | INTEGER(i4) , DIMENSION(2,2) :: il_offset |
---|
[4213] | 737 | |
---|
| 738 | ! loop indices |
---|
| 739 | !---------------------------------------------------------------- |
---|
| 740 | |
---|
| 741 | ALLOCATE( il_rho(ip_maxdim) ) |
---|
| 742 | il_rho(:)=1 |
---|
[5037] | 743 | IF( PRESENT(id_rho) ) il_rho(1:SIZE(id_rho(:)))=id_rho(:) |
---|
[4213] | 744 | IF( ANY(il_rho(:) < 0) )THEN |
---|
| 745 | CALL logger_error("INTERP FILL VALUE: invalid "//& |
---|
| 746 | & " refinement factor ") |
---|
| 747 | ENDIF |
---|
| 748 | |
---|
| 749 | il_offset(:,:)=0 |
---|
| 750 | IF( PRESENT(id_offset) )THEN |
---|
| 751 | IF( ANY(SHAPE(id_offset(:,:)) /= (/2,2/)) )THEN |
---|
[5037] | 752 | CALL logger_error("INTERP FILL VALUE: invalid array of offset") |
---|
[4213] | 753 | ELSE |
---|
| 754 | il_offset(:,:)=id_offset(:,:) |
---|
| 755 | ENDIF |
---|
| 756 | ENDIF |
---|
| 757 | |
---|
| 758 | IF( (il_rho(jp_I) /= 1 .AND. td_var%t_dim(1)%l_use) .OR. & |
---|
| 759 | & (il_rho(jp_J) /= 1 .AND. td_var%t_dim(2)%l_use) .OR. & |
---|
| 760 | & (il_rho(jp_K) /= 1 .AND. td_var%t_dim(3)%l_use) )THEN |
---|
| 761 | |
---|
[5037] | 762 | SELECT CASE(TRIM(td_var%c_interp(1))) |
---|
| 763 | CASE('cubic','linear','nearest') |
---|
| 764 | cl_method=TRIM(td_var%c_interp(1)) |
---|
| 765 | CASE DEFAULT |
---|
| 766 | CALL logger_warn("INTERP FILL VALUE: interpolation method unknown."//& |
---|
| 767 | & " use linear interpolation") |
---|
| 768 | cl_method='linear' |
---|
| 769 | ! update variable structure value |
---|
| 770 | td_var%c_interp(1)='linear' |
---|
| 771 | END SELECT |
---|
| 772 | |
---|
[4213] | 773 | CALL logger_info("INTERP FILL: interpolate "//TRIM(td_var%c_name)//& |
---|
| 774 | & " using "//TRIM(cl_method)//" method." ) |
---|
| 775 | CALL logger_info("INTERP FILL: refinement factor "//& |
---|
| 776 | & TRIM(fct_str(il_rho(jp_I)))//& |
---|
| 777 | & " "//TRIM(fct_str(il_rho(jp_J)))//& |
---|
| 778 | & " "//TRIM(fct_str(il_rho(jp_K))) ) |
---|
| 779 | |
---|
| 780 | CALL interp__fill_value( td_var, cl_method, & |
---|
[5037] | 781 | & il_rho(:), il_offset(:,:) ) |
---|
[4213] | 782 | |
---|
| 783 | SELECT CASE(TRIM(td_var%c_interp(2))) |
---|
| 784 | CASE('/rhoi') |
---|
| 785 | WHERE( td_var%d_value(:,:,:,:) /= td_var%d_fill ) |
---|
| 786 | td_var%d_value(:,:,:,:) = & |
---|
| 787 | & td_var%d_value(:,:,:,:) / REAL(il_rho(jp_I),dp) |
---|
| 788 | END WHERE |
---|
| 789 | CASE('/rhoj') |
---|
| 790 | WHERE( td_var%d_value(:,:,:,:) /= td_var%d_fill ) |
---|
| 791 | td_var%d_value(:,:,:,:) = & |
---|
| 792 | & td_var%d_value(:,:,:,:) / REAL(il_rho(jp_J),dp) |
---|
| 793 | END WHERE |
---|
| 794 | CASE('/rhok') |
---|
| 795 | WHERE( td_var%d_value(:,:,:,:) /= td_var%d_fill ) |
---|
| 796 | td_var%d_value(:,:,:,:) = & |
---|
| 797 | & td_var%d_value(:,:,:,:) / REAL(il_rho(jp_K),dp) |
---|
| 798 | END WHERE |
---|
| 799 | CASE('*rhoi') |
---|
| 800 | WHERE( td_var%d_value(:,:,:,:) /= td_var%d_fill ) |
---|
| 801 | td_var%d_value(:,:,:,:) = & |
---|
| 802 | & td_var%d_value(:,:,:,:) * REAL(il_rho(jp_I),dp) |
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| 803 | END WHERE |
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| 804 | CASE('*rhoj') |
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| 805 | WHERE( td_var%d_value(:,:,:,:) /= td_var%d_fill ) |
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| 806 | td_var%d_value(:,:,:,:) = & |
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| 807 | & td_var%d_value(:,:,:,:) * REAL(il_rho(jp_J),dp) |
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| 808 | END WHERE |
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| 809 | CASE('*rhok') |
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| 810 | WHERE( td_var%d_value(:,:,:,:) /= td_var%d_fill ) |
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| 811 | td_var%d_value(:,:,:,:) = & |
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| 812 | & td_var%d_value(:,:,:,:) * REAL(il_rho(jp_K),dp) |
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| 813 | END WHERE |
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| 814 | CASE DEFAULT |
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| 815 | td_var%c_interp(2)='' |
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| 816 | END SELECT |
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| 817 | |
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[5037] | 818 | ELSE |
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| 819 | td_var%c_interp(:)='' |
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[4213] | 820 | ENDIF |
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| 821 | |
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[5037] | 822 | DEALLOCATE(il_rho) |
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| 823 | |
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[4213] | 824 | END SUBROUTINE interp__fill_value_wrapper |
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| 825 | !------------------------------------------------------------------- |
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| 826 | !> @brief |
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| 827 | !> This subroutine interpolate value over mixed grid. |
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| 828 | !> |
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[5037] | 829 | !> @author J.Paul |
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[5617] | 830 | !> @date November, 2013 - Initial Version |
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[5037] | 831 | !> @date September, 2014 |
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| 832 | !> - use interpolation method modules |
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[4213] | 833 | !> |
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[5037] | 834 | !> @param[inout] td_var variable structure |
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| 835 | !> @param[in] cd_method interpolation method |
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| 836 | !> @param[in] id_rho array of refinment factor |
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| 837 | !> @param[in] id_offset 2D array of offset between fine and coarse grid |
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[4213] | 838 | !------------------------------------------------------------------- |
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| 839 | SUBROUTINE interp__fill_value( td_var, cd_method, & |
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[5037] | 840 | & id_rho, id_offset ) |
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[4213] | 841 | IMPLICIT NONE |
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| 842 | ! Argument |
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| 843 | TYPE(TVAR) , INTENT(INOUT) :: td_var |
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| 844 | CHARACTER(LEN=*) , INTENT(IN ) :: cd_method |
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| 845 | INTEGER(I4) , DIMENSION(:) , INTENT(IN ) :: id_rho |
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[5037] | 846 | INTEGER(I4) , DIMENSION(2,2), INTENT(IN ) :: id_offset |
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[4213] | 847 | |
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| 848 | ! local variable |
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| 849 | CHARACTER(LEN=lc) :: cl_interp |
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| 850 | |
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| 851 | INTEGER(I4) , DIMENSION(:) , ALLOCATABLE :: il_rho |
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| 852 | INTEGER(i4) , DIMENSION(:,:,:) , ALLOCATABLE :: il_detect |
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| 853 | |
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| 854 | REAL(dp) :: dl_min |
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| 855 | REAL(dp) :: dl_max |
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| 856 | |
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| 857 | LOGICAL , DIMENSION(3) :: ll_even |
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| 858 | LOGICAL :: ll_discont |
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| 859 | |
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| 860 | TYPE(TVAR) :: tl_mix |
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| 861 | |
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| 862 | TYPE(TATT) :: tl_att |
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[5037] | 863 | |
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[4213] | 864 | ! loop indices |
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| 865 | !---------------------------------------------------------------- |
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| 866 | |
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| 867 | !1- create mixed grid |
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| 868 | CALL interp_create_mixed_grid( td_var, tl_mix, id_rho(:) ) |
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| 869 | |
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| 870 | ! clean variable structure |
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| 871 | CALL var_clean(td_var) |
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| 872 | |
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| 873 | !2- detect point to be interpolated |
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| 874 | ALLOCATE( il_detect( tl_mix%t_dim(1)%i_len, & |
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| 875 | & tl_mix%t_dim(2)%i_len, & |
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| 876 | & tl_mix%t_dim(3)%i_len) ) |
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| 877 | |
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| 878 | il_detect(:,:,:)=0 |
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| 879 | |
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| 880 | il_detect(:,:,:)=interp_detect(tl_mix, id_rho(:) ) |
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| 881 | |
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| 882 | ! add attribute to variable |
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| 883 | cl_interp=fct_concat(tl_mix%c_interp(:)) |
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| 884 | tl_att=att_init('interpolation',cl_interp) |
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| 885 | CALL var_move_att(tl_mix, tl_att) |
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| 886 | |
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[5037] | 887 | ! clean |
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| 888 | CALL att_clean(tl_att) |
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| 889 | |
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[4213] | 890 | ! special case for even refinement on ARAKAWA-C grid |
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| 891 | ll_even(:)=.FALSE. |
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| 892 | IF( MOD(id_rho(jp_I),2) == 0 ) ll_even(1)=.TRUE. |
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| 893 | IF( MOD(id_rho(jp_J),2) == 0 ) ll_even(2)=.TRUE. |
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| 894 | IF( MOD(id_rho(jp_K),2) == 0 ) ll_even(3)=.TRUE. |
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| 895 | |
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| 896 | SELECT CASE(TRIM(tl_mix%c_point)) |
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| 897 | CASE('U') |
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| 898 | ll_even(1)=.FALSE. |
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| 899 | CASE('V') |
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| 900 | ll_even(2)=.FALSE. |
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| 901 | CASE('F') |
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| 902 | ll_even(:)=.FALSE. |
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| 903 | END SELECT |
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| 904 | |
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| 905 | ALLOCATE(il_rho(ip_maxdim)) |
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| 906 | il_rho(:)=id_rho(:) |
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| 907 | |
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| 908 | IF( ll_even(1) ) il_rho(jp_I)=id_rho(jp_I)+1 |
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| 909 | IF( ll_even(2) ) il_rho(jp_J)=id_rho(jp_J)+1 |
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| 910 | IF( ll_even(3) ) il_rho(jp_K)=id_rho(jp_K)+1 |
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| 911 | |
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| 912 | ! special case for longitude |
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| 913 | ll_discont=.FALSE. |
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| 914 | IF( TRIM(tl_mix%c_units) == 'degrees_east' )THEN |
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| 915 | dl_min=MINVAL( tl_mix%d_value(:,:,:,:), & |
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| 916 | & tl_mix%d_value(:,:,:,:)/=tl_mix%d_fill) |
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| 917 | dl_max=MAXVAL( tl_mix%d_value(:,:,:,:), & |
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| 918 | & tl_mix%d_value(:,:,:,:)/=tl_mix%d_fill) |
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| 919 | IF( dl_min < -170_dp .AND. dl_max > 170_dp .OR. & |
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| 920 | & dl_min < 10_dp .AND. dl_max > 350_dp )THEN |
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| 921 | ll_discont=.TRUE. |
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| 922 | ENDIF |
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| 923 | ENDIF |
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| 924 | |
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| 925 | !3- interpolate |
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[5037] | 926 | CALL logger_debug("INTERP 2D: interpolation method "//TRIM(cd_method)//& |
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| 927 | & " discont "//TRIM(fct_str(ll_discont)) ) |
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| 928 | SELECT CASE(TRIM(cd_method)) |
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| 929 | CASE('cubic') |
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| 930 | CALL interp_cubic_fill(tl_mix%d_value(:,:,:,:), tl_mix%d_fill, & |
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| 931 | & il_detect(:,:,:), & |
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| 932 | & il_rho(:), ll_even(:), ll_discont ) |
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| 933 | CASE('nearest') |
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| 934 | CALL interp_nearest_fill(tl_mix%d_value(:,:,:,:), & |
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| 935 | & il_detect(:,:,:), & |
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| 936 | & il_rho(:) ) |
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| 937 | CASE DEFAULT ! linear |
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| 938 | CALL interp_linear_fill(tl_mix%d_value(:,:,:,:), tl_mix%d_fill, & |
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| 939 | & il_detect(:,:,:), & |
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| 940 | & il_rho(:), ll_even(:), ll_discont ) |
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| 941 | END SELECT |
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[4213] | 942 | |
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| 943 | IF( ANY(il_detect(:,:,:)==1) )THEN |
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| 944 | CALL logger_warn("INTERP FILL: some points can not be interpolated "//& |
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| 945 | & "for variable "//TRIM(tl_mix%c_name) ) |
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| 946 | ENDIF |
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| 947 | |
---|
| 948 | DEALLOCATE(il_detect) |
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[5609] | 949 | |
---|
[4213] | 950 | !4- save useful domain (remove offset) |
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| 951 | CALL interp_clean_mixed_grid( tl_mix, td_var, & |
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[5037] | 952 | & id_rho(:), id_offset(:,:) ) |
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[4213] | 953 | |
---|
| 954 | ! clean variable structure |
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[5037] | 955 | DEALLOCATE(il_rho) |
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[4213] | 956 | CALL var_clean(tl_mix) |
---|
| 957 | |
---|
| 958 | END SUBROUTINE interp__fill_value |
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| 959 | END MODULE interp |
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