findBottom {oce} | R Documentation |
Find the ocean bottom in an echosounder object
findBottom(x, ignore=5, clean=despike)
x |
an object of class |
ignore |
number of metres of data to ignore, near the surface |
clean |
a function to clean the inferred depth of spikes |
Finds the depth in a Biosonics echosounder file, by finding the strongest reflector and smoothing its trace.
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.
Dan Kelley
The documentation for echosounder-class
explains the
structure of echosounder
objects, and also outlines the other
functions dealing with them.