invdist: Inverse distance interpolation

In gowusu/sebkc: The Surface Energy Balance and Crop Coefficient Estimation with R

Inverse distance interpolation

Description

This function performs inverse distance interpolation based on projection and geometry of input spatial data 'ext'.

Usage

invdist(longitude, latitude, var, ext, idp = 0.5)

Arguments

longitude	The longitude of the measurement site i.e. geographical coordinates in decimal degrees for the weather station. It should be negative for West and positive for East.
latitude	geographical coordinates in decimal degrees. It should be negative for southern hemisphere
var	numeric variable. The length should be same as the length of latitude and longitude
ext	RasterLayer object.
idp	Neighbourhood parameter

Value

var: interpolated values

Author(s)

George Owusu

Examples

 ## Not run: 
#Get ext data
folder=system.file("extdata","stack",package="sebkc")
data=landsat578(data=folder, welev=362)
temp=data$Ts
latitude=seq(7.544,7.590,0.001)
longitude=seq(-1.211,-1.187,0.001)
var=seq(20,30,0.2)
latitude=latitude[1:length(longitude)]
var=var[1:length(longitude)]
map=invdist(longitude,latitude,var,ext=temp)

## End(Not run)

gowusu/sebkc documentation built on July 28, 2023, 11:44 a.m.