topo2 | R Documentation |
topo2
is a matrix containing world topography data, on a 2-degree grid.
This is provided for occasions where the higher resolution topography in
topoWorld
from the Oce package is not needed. See “Examples” for a
plot that illustrates the longitude and latitude grid for the data.
data(topo2, package="ocedata")
The data are calculated by applying decimate()
to the topoWorld
dataset from the oce package, followed by extraction of the "z"
value.
# Coastline and 2 km isobath data(topo2, package="ocedata") lon <- seq(-179.5, 178.5, by=2) lat <- seq(-89.5, 88.5, by=2) contour(lon, lat, topo2, asp=1, drawlabels=FALSE, level=c(0,-2000), col=c(1,2))
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