lakeMinorMajorRatio

Major axis length is defined as the maximum length spanning the convex hull
of a lake. Minor axis length is defined as the minimum length spanning the
convex hull of a lake.

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outdated, difficult to reproduce, or require expensive licenses to use.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

lakeMinorMajorRatio 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>addLine</dt>
<dd>Boolean to determine if the selected major and minor axis lines
should be added to the inLakeMorpho object. Defaults to True</dd></dl>

Arguments

Calculate the ratio of the minor axis length to major axis length — lakeMinorMajorRatio

<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>addLine</dt>
<dd>Boolean to determine if the selected major and minor axis lines
should be added to the inLakeMorpho object. Defaults to True</dd>

</dl>

lakeMinorMajorRatio: Calculate the ratio of the minor axis length to major axis length

Description

Usage

Value

Arguments

References

Examples