lakeVolume: Calculates Lake Volume in R

Description Usage Arguments Value References Examples

View source: R/lakeVolume.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

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

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.

Value

Returns a numeric value for the total volume of the lake

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. 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

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

lakemorpho documentation built on Sept. 24, 2021, 1:06 a.m.