Satellite tracking data from a ringed seal
Satellite tracking data from a ringed seal tagged in Svalbard, Norway. Data were provided by C. Lydersen and K. M. Kovacs (Norwegian Polar Institute).
data(seal)
A data frame with 1561 observations on the following 4 variables.
dtimea vector of class POSIXt with date and time for each location
lata numeric vector with latitudes, in decimal degrees
lona numeric vector with longitudes, in decimal degrees
lca numeric vector with location classes LC (-9 refers to LC Z, -2 to LC B and -1 to LC A)
data(seal) lat<-seal$lat lon<-seal$lon # plot unfiltered data plot(lon,lat)
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