catchment: Catchment Compute catchment area or catchment spatial objects...

In flee-group/watershed: Tools for Watershed Delineation

Catchment Compute catchment area or catchment spatial objects from delineated streams

Description

Catchment Compute catchment area or catchment spatial objects from delineated streams

Usage

catchment(
  x,
  type = c("outlet", "reach", "points", "pixel"),
  y,
  area = TRUE,
  Tp
)

Arguments

x	A raster::stack, such as one created by delineate().
type	The scale at which to compute catchments, see 'details'
y	Matrix, 2-columns, giving coordinates at which to compute the catchments
area	boolean, if TRUE returns the catchment area, if FALSE returns a raster
Tp	Optional topology, used if type != "points", will be computed if not provided

Details

The type parameter controls how many catchments/catchment areas are computed (and how long the function will take).

• 'outlet': Compute only for the outlet of the entire network

• 'reach': Compute one catchment area per reach, computed at the bottom of the reach

• 'points': Compute catchment for user-specified points, given by the y parameter

• 'pixel': Compute catchment area for each pixel; this can take a very long time

Examples

    data(kamp_dem)
    x = delineate(kamp_dem)
    catchment(x)

flee-group/watershed documentation built on July 25, 2022, 12:46 p.m.