horiz_interp_bilinear_mod

Data Types
interface	horiz_interp_bilinear
	Generic interface to interpolate data from a source grid to target grid using the weights stored in Interp. Calls horiz_interp_bilinear_r4 if input and output data are 2D arrays in 32-bit precision. Calls horiz_interp_bilinear_r8 if input and output data are 2D arrays in 64-bit precision. More...
interface	horiz_interp_read_weights_bilinear
	Generic interface to populate Interp from a weight file generated from fregrid. Calls horiz_interp_read_weights_bilinear_r4 if grid arguments are provided as 32-bit precision. Calls horiz_interp_read_weights_bilienar_r8 if grid arguments are provided as 64-bit precision. More...
interface	intersect
	Generic interface used internally when finding nearest neighboring input cells for an output cell. Calls intersect_r4 when grid points are in 32-bit precision. Calls intersect_r8 when grid points are in 64-bit precision. More...

Functions/Subroutines
subroutine, public	horiz_interp_bilinear_del (Interp)
	Deallocates memory used by "horiz_interp_type" variables. More...
subroutine, public	horiz_interp_bilinear_init
	horiz_interp_bilinear_new_1d_r4
	horiz_interp_bilinear_new_1d_r8
	horiz_interp_bilinear_new_2d_r4
	horiz_interp_bilinear_new_2d_r8
	horiz_interp_bilinear_r4
	horiz_interp_bilinear_r8
	horiz_interp_read_weights_bilinear_r4
	horiz_interp_read_weights_bilinear_r8
	intersect_r4
	intersect_r8

Variables
integer, parameter	dummy = -999
	is -999
real(r8_kind), parameter	epsln =1.e-10_r8_kind
	is a really small number
real(r4_kind), parameter	epsln_r4 =1.e-4_r4_kind
	is 0.0001
logical	module_is_initialized = .FALSE.
	is a flag to prevent re-initialization

Detailed Description

Author

Zhi Liang Zhi.L.nosp@m.iang.nosp@m.@noaa.nosp@m..gov Horiz_interp_bilinear_mod contains methods called from horiz_interp_mod to interpolate data on a regular rectangular grid to a rectangular/tripolar grid. Users are recommened to use the top-level module horiz_interp_mod with "interp" set to "bilinear" for bilinear interpolation.

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Data Type Documentation

horiz_interp_bilinear_mod::horiz_interp_bilinear

interface horiz_interp_bilinear_mod::horiz_interp_bilinear

Generic interface to interpolate data from a source grid to target grid using the weights stored in Interp. Calls horiz_interp_bilinear_r4 if input and output data are 2D arrays in 32-bit precision. Calls horiz_interp_bilinear_r8 if input and output data are 2D arrays in 64-bit precision.

Definition at line 76 of file horiz_interp_bilinear.F90.

Private Member Functions
	horiz_interp_bilinear_r4
	horiz_interp_bilinear_r8

horiz_interp_bilinear_mod::horiz_interp_read_weights_bilinear

interface horiz_interp_bilinear_mod::horiz_interp_read_weights_bilinear

Generic interface to populate Interp from a weight file generated from fregrid. Calls horiz_interp_read_weights_bilinear_r4 if grid arguments are provided as 32-bit precision. Calls horiz_interp_read_weights_bilienar_r8 if grid arguments are provided as 64-bit precision.

Definition at line 67 of file horiz_interp_bilinear.F90.

Private Member Functions
	horiz_interp_read_weights_bilinear_r4
	horiz_interp_read_weights_bilinear_r8

horiz_interp_bilinear_mod::intersect

interface horiz_interp_bilinear_mod::intersect

Generic interface used internally when finding nearest neighboring input cells for an output cell. Calls intersect_r4 when grid points are in 32-bit precision. Calls intersect_r8 when grid points are in 64-bit precision.

Definition at line 88 of file horiz_interp_bilinear.F90.

Private Member Functions
	intersect_r4
	intersect_r8

Function/Subroutine Documentation

horiz_interp_bilinear_del()

subroutine, public horiz_interp_bilinear_mod::horiz_interp_bilinear_del

(

type (horiz_interp_type), intent(inout)

Interp

)

Deallocates memory used by "horiz_interp_type" variables.

Must be called before reinitializing with horiz_interp_bilinear_new. Deallocates arrays holding bilinear interpolation weights and mapping indices in Interp. Resets is_allocated to .false. Called from horiz_interp_del in horiz_interp_mod.

Parameters

[in,out]

interp

will be reset with deallocated memory.

Definition at line 117 of file horiz_interp_bilinear.F90.

horiz_interp_bilinear_init()

subroutine, public horiz_interp_bilinear_mod::horiz_interp_bilinear_init

Initializes horiz_interp_bilinear_mod. Called from horiz_interp_init in horiz_interp_mod.

Definition at line 101 of file horiz_interp_bilinear.F90.