Digital elevation model of the Americas based on ETOPO1.
Usage
data(dem)
Arguments
Format
A RasterLayer with 159 rows and 212 columns.
References
Amante, C. and B. W. Eakins, ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis.
NOAA Technical Memorandum NESDIS NGDC-24, 19 pp, March 2009.
Go to this web site: http://www.ngdc.noaa.gov/mgg/global/global.html.