littoralVol: Calculate Littoral Volume

In rLakeHabitat: Interpolate Bathymetry and Quantify Physical Aquatic Habitat

Calculate Littoral Volume

Description

Calculate littoral and pelagic volume across water levels from a DEM based on estimated photic depth.

Usage

littoralVol(
  DEM,
  photic,
  secchi = NULL,
  DEMunits = "m",
  depthUnits = "ft",
  by = 1
)

Arguments

DEM	SpatRaster object of a given waterbody, rasters can be transformed to SpatRaster via the rast() function in 'terra'
photic	number giving the average photic depth, overwrites Secchi depth
secchi	number giving the average secchi depth, photic zone estimated as 2.6m * secchi
DEMunits	character describing units of raster coordinate system. Can be meters, kilometers, or hectares ("m", "km", "ha"), default = "m"
depthUnits	character describing units of depth measurement. Can be either feet or meters ("ft", "m"), default = "ft"
by	numeric increment per unit by which volumes are calculated. Higher values will result in lower resolution. Default = 1

Value

data frame of littoral and pelagic volume estimates

Author(s)

Tristan Blechinger, Department of Zoology & Physiology, University of Wyoming

Examples

#load raster
DEM <- terra::rast(system.file("extdata", "example_raster.tif", package = 'rLakeHabitat'))
#run function
littoralVol(DEM, photic = 2, DEMunits = "m", depthUnits = "m", by = 1)

rLakeHabitat documentation built on April 16, 2025, 1:10 a.m.