rnoaa (version 0.8.4)

seaice: Get sea ice data.

Description

Get sea ice data.

Usage

seaice(url, ...)

Arguments

url

A url for a NOAA sea ice ftp file

...

Further arguments passed on to readshpfile function, see readshpfile

Value

A data.frame

Details

If you want to reproject the shape files, use readshpfile to read in shape file, then reproject, and so on.

Examples

# NOT RUN {
# Look at data.frame's for a series of years for Feb, South pole
urls <- sapply(seq(1979,1990,1), function(x) seaiceeurls(yr=x,
  mo='Feb', pole='S'))
out <- lapply(urls, seaice)
lapply(out, head)

# Map a single year/month/pole combo
urls <- seaiceeurls(mo='Apr', pole='N', yr=1990)
out <- seaice(urls)
library('ggplot2')
ggplot(out, aes(long, lat, group=group)) +
   geom_polygon(fill="steelblue") +
   theme_ice()
# }