Bathymetry data spanning British Columbia's coast.
x = vector of horizontal grid line
y = vector of vertical grid line locations,
y) matrix containing water depths measured in
meters. Positive values indicate distance below sea level and
negative values above it.
'grDevices::contourLines' expect data in this format.
convCP converts the output from
'grDevices::contourLines' into a PolySet.
In R, the data must be loaded using the
Nicholas M. Boers, Associate Professor – Computer Science
MacEwan University, Edmonton AB
Maintainer: Rowan Haigh, Program Head – Offshore Rockfish
Pacific Biological Station (PBS), Fisheries & Oceans Canada (DFO), Nanaimo BC
locus opus: Institute of Ocean Sciences (IOS), Sidney BC
Bathymetry data acquired from the Scripps Institution of Oceanography at the University of San Diego.
Using their online form, we requested bathymetry data for the complete
At forty megabytes, the data were not suitable for distribution in our mapping package.
Therefore, we reduced the data to the range -140 <= x <= -122 degrees
and 47 <= y <= 61 degrees.
Smith, W.H.F. and Sandwell, D.T. (1997)
Global seafloor topography from satellite altimetry and ship depth soundings.
Science 277, 1957-1962.
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