get.bath.data: Download bathymetry data

In HMMoce: Improved Analysis of Marine Animal Movement Data Using Hidden Markov Models

Description

Download ETOPO bathymetry. Resolution is either 30 second or one minute resolution

Usage

get.bath.data(lonlow, lonhigh, latlow, lathigh, folder = tempdir(),
  seaonly = T, res = c(0.5), raster = TRUE)

Arguments

lonlow	numeric indicating minimum longitude extent of desired download (-180 to 180).
lonhigh	see lonlow
latlow	see lonlow
lathigh	see lonlow
folder	is destination folder. Default is a temporary directory.
seaonly	is logical indicating whether you want to download only bathymetry below sea level.
res	is numeric indicating resolution in minutes. Choices currently are 0.5 or 1minute.
raster	is logical indicating whether you want the function to return a raster or not (a list will be returned).

Value

Downloads a NetCDF file containing ETopo bathymetry. If raster=TRUE, a raster is generated from the downloaded NetCDF. Otherwise, the file is just downloaded.

Note

Be patient! The download can take a few minutes!

Examples

## Not run: 
# Not run to prevent actual data download
sp.lim <- list(lonmin = -82, lonmax = -25, latmin = 15, latmax = 50)
bathy <- get.bath.data(sp.lim$lonmin, sp.lim$lonmax, sp.lim$latmin, 
sp.lim$latmax, folder = tempdir())

## End(Not run)

HMMoce documentation built on Nov. 17, 2017, 5:57 a.m.