Arguments
label	type	description
var	variable	variable to be regridded
grid	grid	grid (i.e., independent variable) on which new grid specifications (e.g., lowbound, step, highbound) are to be applied
lowbound	number	lower limit of new grid definition
step	number	width (in units of grid) between new grid points If n is not an integer, where n=(highbound-lowbound)/step, then step is assigned closest value that allows n to be an integer.
highbound	number	upper limit of new grid definition
Returns
regridvar	variable	var regridded onto newly-defined grid Data at new grid points are based on linear interpolation of original var.

Description

GRID regrids an existing independent variable (grid) associated with a data set or variable with a newly-defined evenly-spaced grid based upon user-defined limits and spacing.

In the function arguments "var" is a data variable that depends on the independent variable "grid", "lowbound" is the minimum value of the new grid being defined, "step" is the evenly-spaced interval of the new grid in the units of "grid", and "highbound" is the upper limit of the new grid.

Example

In the following example, a gridded data set of monthly mean short wave radiances is spatially regridded globally (from -180° to 179° in longitude and -90° to 90° in latitude) from 2.5° lat/lon grid spacing to 1° lat/lon spacing. Bi-linear interpolation is used to regrid from the coarser to the finer grid.

SOURCES .ERBE .global .monthly .srb
X -180 1 179 GRID
Y -90 1 90 GRID

Live Example Link