oce (version 0.9-20)

findBottom: Find the Ocean Bottom in an Echosounder Object

Description

Finds the depth in a Biosonics echosounder file, by finding the strongest reflector and smoothing its trace.

Usage

findBottom(x, ignore = 5, clean = despike)

Arguments

x

an object of class echosounder

ignore

number of metres of data to ignore, near the surface

clean

a function to clean the inferred depth of spikes

Value

A list with elements: the time of a ping, the depth of the inferred depth in metres, and the index of the inferred bottom location, referenced to the object's depth vector.

See Also

The documentation for echosounder-class explains the structure of echosounder objects, and also outlines the other functions dealing with them.

Other things related to echosounder data: [[,echosounder-method, [[<-,echosounder-method, as.echosounder, echosounder-class, echosounder, plot,echosounder-method, read.echosounder, subset,echosounder-method, summary,echosounder-method