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Process elevation data

Source: R/process.R
process_gmted.Rd

The process_gmted() function imports and cleans raw elevation data, returning a single SpatRaster object.

Usage

process_gmted(variable = NULL, path = NULL, extent = NULL, ...)

Arguments

variable

vector(1). Vector containing the GMTED statistic first and the resolution second. (Example: variable = c("Breakline Emphasis", "7.5 arc-seconds")).

  • Statistic options: "Breakline Emphasis", "Systematic Subsample", "Median Statistic", "Minimum Statistic", "Mean Statistic", "Maximum Statistic", "Standard Deviation Statistic"

  • Resolution options: "30 arc-seconds", "15 arc-seconds", "7.5 arc-seconds"

path

character(1). Directory with downloaded GMTED "*_grd" folder containing .adf files.

extent

numeric(4) or SpatExtent giving the extent of the raster if NULL (default), the entire raster is loaded

...

Placeholders.

Value

a SpatRaster object

Note

SpatRaster layer name indicates selected variable and resolution, and year of release (2010).

Author

Mitchell Manware

Examples

## NOTE: Example is wrapped in `\dontrun{}` as function requires a large
##       amount of data which is not included in the package.
if (FALSE) { # \dontrun{
gmted <- process_gmted(
  variable = c("Breakline Emphasis", "7.5 arc-seconds"),
  path = "./data/be75_grd"
)
} # }