Performs spatial interpolation between grids using inverse-distance-weighted scheme.
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| interface | full_search |
| | Generic interface used internally when search_method = "full_search" to search for nearest neighbors. Calls full_search_r4 when the input and output grids are in 32-bit precision. Calls full_search_r8 when the input and output grids are in 64-bit precision. More...
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| interface | horiz_interp_spherical_new |
| | Generic interface to compute interpolation weights and mapping indices. Calls horiz_interp_spherical_new_r4 when input and output 2D grid arrays are in 32-bit precision. Calls horiz_interp_spherical_new_r8 when input and output 2D grid arrays are in 64-bit precision. More...
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| interface | horiz_interp_spherical_wght |
| | Unused interface. More...
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| interface | radial_search |
| | Generic interface used internally when search_method = "radial_search" to search for nearest neighbors. Calls radial_search_r4 when the input and output grids are in 32-bit precision. Calls radial_search_r8 when the input and output grids are in 64-bit precision. More...
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| interface | spherical_distance |
| | Generic inteface used internally in full_search and radial_search. Calls spherical_distance_r4 when the lon and lat values are in 32-bit precision. Calls spherical_distance_r8 when the lon and lat values are in 64-bit precision. More...
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| full_search_r4 |
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| full_search_r8 |
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| subroutine, public | horiz_interp_spherical_del (Interp) |
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| subroutine, public | horiz_interp_spherical_init |
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| horiz_interp_spherical_new_r4 |
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| horiz_interp_spherical_new_r8 |
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| horiz_interp_spherical_r4 |
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| horiz_interp_spherical_r8 |
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| horiz_interp_spherical_wght_r4 |
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| horiz_interp_spherical_wght_r8 |
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| radial_search_r4 |
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| radial_search_r8 |
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| spherical_distance_r4 |
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| spherical_distance_r8 |
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real(r8_kind), parameter | epsln =1.e-10_r8_kind |
| | is a small number
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real(r8_kind), parameter | large =1.e20_r8_kind |
| | is a large number
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real(r8_kind), parameter | max_dist_default = 0.1_r8_kind |
| | is the maximum angular distance in radians for input and output grid cells to neighbor.
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integer, parameter | max_neighbors = 400 |
| | is the maximum number of neighboring input grid cells around output grid cell.
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logical | module_is_initialized = .FALSE. |
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integer, parameter | num_nbrs_default = 4 |
| | is the minimum number of neighbors to compute for each output grid cell.
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integer | pe |
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integer | root_pe |
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character(len=32) | search_method = "radial_search" |
| | is a namelist flag to set the nearest neighbor searching method to either "radial_search" (default) or "full_search". When set to "radial_search", the search may not be as accurate for some cases. Normally the search will be ok if you chose suitable max_dist. When search_method is "full_search", it will be always accurate, but will be slower comparing to "radial_search". Normally these two search algorithm will produce same results other than order of operation. "radial_search" are recommended to use. The purpose to add "full_search" is in case you think you interpolation results is not right, you have other option to verify.
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Performs spatial interpolation between grids using inverse-distance-weighted scheme.
Horiz_interp_spherical_mod contains methods called from horiz_interp_mod to interpolate data from rectangular/tripolar grid to rectangular/tripolar grid using the inverse-distance-weighted interpolation. Users are recommended to use the top-level horiz_interp_mod with "interp" set to "spherical" for the inverse-distance-weighted interpolation.
◆ horiz_interp_spherical_mod::full_search
| interface horiz_interp_spherical_mod::full_search |
Generic interface used internally when search_method = "full_search" to search for nearest neighbors. Calls full_search_r4 when the input and output grids are in 32-bit precision. Calls full_search_r8 when the input and output grids are in 64-bit precision.
Definition at line 71 of file horiz_interp_spherical.F90.
Private Member Functions |
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| full_search_r4 |
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| full_search_r8 |
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◆ horiz_interp_spherical_mod::horiz_interp_spherical_new
| interface horiz_interp_spherical_mod::horiz_interp_spherical_new |
Generic interface to compute interpolation weights and mapping indices. Calls horiz_interp_spherical_new_r4 when input and output 2D grid arrays are in 32-bit precision. Calls horiz_interp_spherical_new_r8 when input and output 2D grid arrays are in 64-bit precision.
Definition at line 53 of file horiz_interp_spherical.F90.
Private Member Functions |
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| horiz_interp_spherical_new_r4 |
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| horiz_interp_spherical_new_r8 |
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◆ horiz_interp_spherical_mod::horiz_interp_spherical_wght
| interface horiz_interp_spherical_mod::horiz_interp_spherical_wght |
Unused interface.
Definition at line 59 of file horiz_interp_spherical.F90.
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| horiz_interp_spherical_wght_r4 |
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| horiz_interp_spherical_wght_r8 |
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◆ horiz_interp_spherical_mod::radial_search
| interface horiz_interp_spherical_mod::radial_search |
Generic interface used internally when search_method = "radial_search" to search for nearest neighbors. Calls radial_search_r4 when the input and output grids are in 32-bit precision. Calls radial_search_r8 when the input and output grids are in 64-bit precision.
Definition at line 80 of file horiz_interp_spherical.F90.
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| radial_search_r4 |
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| radial_search_r8 |
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◆ horiz_interp_spherical_mod::spherical_distance
| interface horiz_interp_spherical_mod::spherical_distance |
Generic inteface used internally in full_search and radial_search. Calls spherical_distance_r4 when the lon and lat values are in 32-bit precision. Calls spherical_distance_r8 when the lon and lat values are in 64-bit precision.
Definition at line 88 of file horiz_interp_spherical.F90.
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| spherical_distance_r4 |
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| spherical_distance_r8 |
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◆ horiz_interp_spherical_del()
| subroutine, public horiz_interp_spherical_mod::horiz_interp_spherical_del |
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type (horiz_interp_type), intent(inout) |
Interp | ) |
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Deallocates arrays holding spherical interpolation weights and mapping indices in Interp. Resets is_allocated to .false. Called from horiz_interp_del in horiz_interp_mod.
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| [in,out] | interp | will be reset with deallocated memory |
Definition at line 145 of file horiz_interp_spherical.F90.
◆ horiz_interp_spherical_init()
| subroutine, public horiz_interp_spherical_mod::horiz_interp_spherical_init |
Initializes horiz_interp_spherical_mod. Called from horiz_interp_init in horiz_interp_mod
Definition at line 126 of file horiz_interp_spherical.F90.
1.9.1