lakeMorphoClass

This is a helper function that creates a lakeMorpho class object

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outdated, difficult to reproduce, or require expensive licenses to use.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

lakeMorphoClass function

<dl><dt>inLake</dt>
<dd>input lake SpatialPolygons object. Required.</dd>
<dt>inElev</dt>
<dd>input elevation model raster object</dd>
<dt>inCatch</dt>
<dd>input catchement SpatialPolygons object, can be buffer
around lake</dd>
<dt>inLakeDist</dt>
<dd>input euclidean distance raster that measures distance
from shore to any pixel in the lake</dd>
<dt>lakeOnEdge</dt>
<dd>Boolean indicating if inCatch (or lake Buffer) extends 
beyond extent of elevation data</dd></dl>

Arguments

Function to create a lakeMorpho class - this is input to all other methods — lakeMorphoClass

<dl>

<dt>inLake</dt>
<dd>input lake SpatialPolygons object. Required.</dd>


<dt>inElev</dt>
<dd>input elevation model raster object</dd>


<dt>inCatch</dt>
<dd>input catchement SpatialPolygons object, can be buffer
around lake</dd>


<dt>inLakeDist</dt>
<dd>input euclidean distance raster that measures distance
from shore to any pixel in the lake</dd>


<dt>lakeOnEdge</dt>
<dd>Boolean indicating if inCatch (or lake Buffer) extends 
beyond extent of elevation data</dd>

</dl>

lakeMorphoClass: Function to create a lakeMorpho class - this is input to all other methods

Description

Usage

Value

Arguments

See Also