seal {argosfilter}

Satellite tracking data from a ringed seal

Description

Satellite tracking data from a ringed seal tagged in Svalbard, Norway. Data were provided by C. Lydersen and K. M. Kovacs (Norwegian Polar Institute).

Usage

data(seal)

Format

A data frame with 1561 observations on the following 4 variables.

dtime

a vector of class POSIXt with date and time for each location

lat

a numeric vector with latitudes, in decimal degrees

lon

a numeric vector with longitudes, in decimal degrees

lc

a numeric vector with location classes LC (-9 refers to LC Z, -2 to LC B and -1 to LC A)

Examples

data(seal)
lat<-seal$lat
lon<-seal$lon
# plot unfiltered data
plot(lon,lat)