In mdsumner/seaice: Tools to Obtain and Access Passive Microwave Sea Ice Data

knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)

The seaice package aims to provide easy access to the most comprehensive data sets of sea ice concentration data available via passive microwave remote sensing.

Please see the vignette for obtaining the data set/s, r vignette("get_seaice", package = "seaice").

In that vignette we defined a variable local_file_root which now we need to persist.

An easy first step is to read the latest data.

library(seaice)
#southern <- read_south_seaice()
northern <- read_north_seaice()

op <- par(mfrow = c(2, 1))
plot(southern, col = palr::icePal(100))
plot(northern, col = palr::icePal(100))
par(op)

southern 
northern

The object returned is a RasterLayer from the raster package. Note that each object is specific to its hemisphere, these are different map projections and they cannot be plotted together natively.

The read functions have an argument latest set to TRUE by default, and so the date of data returned will depend on the last synchronization run of the data, as described in the get_seaice data vignette.

mdsumner/seaice documentation built on June 5, 2019, 8:35 a.m.