lakeVolume: Calculates Lake Volume in R

Description

This function returns lake volume for the input lake. The volume is calculated using maximum lake depth and maximum distance ratio to transform all pixels and thus, distances, to an estimated depth. These depths are multiplied by the area of the pixel and summed.

Usage

lakeVolume(
  inLakeMorpho,
  zmax = NULL,
  slope_quant = 0.5,
  correctFactor = 1,
  addBathy = FALSE
)

Value

Returns a numeric value for the total volume of the lake

Arguments

inLakeMorpho: An object of lakeMorphoClass. Output of the lakeSurroundTopo function would be appropriate as input
zmax: Maximum depth of the lake. If none entered and elevation dataset is inlcuded in inLakeMorpho, lakeMaxDepth is used to estimate a maximum depth.
slope_quant: The slope quantile to use to estimate maximum depth. Defaults to the median as described in (Hollister et. al, 2011).
correctFactor: This a factor used by lakeMaxDepth to correct the predicted maximum lake depth. Defaults to 1.
addBathy: Logical to include a depth raster on the input lakeMorphoClass object. This is labelled as 'pseudoBathy' in the output. It is depth estimated using the maximum lake depth and maximum distance ratio. Might be useful for some applications but shouldn't be considered a replacement for a bathymetric survey.

References

Hollister, J. W., W.B. Milstead (2010). Using GIS to Estimate Lake Volume from Limited Data. Lake and Reservoir Management. 26(3)194-199. tools:::Rd_expr_doi("10.1080/07438141.2010.504321")

Florida LAKEWATCH (2001). A Beginner's guide to water management - Lake Morphometry (2nd ed.). Gainesville: Florida LAKEWATCH, Department of Fisheries and Aquatic Sciences. Link

Examples

Run this code

data(lakes)
lakeVolume(inputLM, addBathy = TRUE)

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