lakeMeanDepth

Calculates average depth of lake as a mean of lake volume divided by
lake surface area

Lake morphometry metrics are used by limnologists to understand,
among other things, the ecological processes in a lake. Traditionally, these
metrics are calculated by hand, with planimeters, and increasingly with
commercial GIS products. All of these methods work; however, they are either
outdated, difficult to reproduce, or require expensive licenses to use. The
'lakemorpho' package provides the tools to calculate a typical suite
of these metrics from an input elevation model and lake polygon. The metrics
currently supported are: fetch, major axis, minor axis, major/minor axis
ratio, maximum length, maximum width, mean width, maximum depth, mean depth,
shoreline development, shoreline length, surface area, and volume.

Jeffrey W Hollister

lakemorpho

Lake Morphometry Metrics

Jeffrey W. Hollister

Jemma Stachelek

lakeMeanDepth function

<dl><dt>inLakeMorpho</dt>
<dd>An object of <code>lakeMorphoClass</code>. Output of the 
<code>lakeSurroundTopo</code> function would be appropriate as input</dd>
<dt>zmax</dt>
<dd>Maximum depth of the lake. If none entered and elevation dataset
is inlcuded in inLakeMorpho, <code>lakeMaxDepth</code> is used 
to estimate a maximum depth.</dd>
<dt>slope_quant</dt>
<dd>The slope quantile to use to estimate maximum depth.
Defaults to the median as described in (Hollister et. al, 
2011).</dd>
<dt>correctFactor</dt>
<dd>This a factor used by <code>lakeMaxDepth</code> to
correct the predicted maximum lake depth. Defaults to 1.</dd></dl>

Arguments

Function to return lake Mean Depth — lakeMeanDepth

<dl>

<dt>inLakeMorpho</dt>
<dd>An object of <code>lakeMorphoClass</code>. Output of the 
<code>lakeSurroundTopo</code> function would be appropriate as input</dd>


<dt>zmax</dt>
<dd>Maximum depth of the lake. If none entered and elevation dataset
is inlcuded in inLakeMorpho, <code>lakeMaxDepth</code> is used 
to estimate a maximum depth.</dd>


<dt>slope_quant</dt>
<dd>The slope quantile to use to estimate maximum depth.
Defaults to the median as described in (Hollister et. al, 
2011).</dd>


<dt>correctFactor</dt>
<dd>This a factor used by <code>lakeMaxDepth</code> to
correct the predicted maximum lake depth. Defaults to 1.</dd>

</dl>

lakeMeanDepth: Function to return lake Mean Depth

Description

Usage

Value

Arguments

References

Examples