ETOPO1 Global Relief Model (ETOPO1)

ETOPO1 is a 1 arc-minute global relief model of Earth’s surface that integrates land topography and ocean bathymetry. It was built from numerous global and regional data sets. Data were converted to the PanMap layer format in 14 contour lines from 500 to 7000 meter in steps of 500 m.

Available variables

bed - Bedrock

ice - Ice surface

The dataset downloaded from here.

Bedrock

ETOPO1 Global Relief Model for bedrock.

Access the bedrock variable (“bed”) of the dataset with the fetch() function:

bedrock <- fetch("ETOPO1","bed")

Additional arguments

The argument dir represents the path to temporary directory.

The argument verbose (logical) determines should feedback be output to the console?

bedrock <- fetch(dat = "ETOPO1", var = "bed", dir, verbose=FALSE)

Resolution

0.017

0.100

1.000

Archive size

ETOPO1_bed_c_20110606_tiff_0.017: 445 MB

ETOPO1_bed_c_20110606_tiff_0.1: 27.9 MB

ETOPO1_bed_c_20110606_tiff_1: 295 KB

Version

c_20110606_tiff

Licence

CC-BY 3.0

Ice surface

ETOPO1 Global Relief Model for ice surface.

Access the ice surface variable (“ice”) of the ETOPO1 dataset with the fetch() function:


icesurf <- fetch("ETOPO1", "ice")

Additional arguments

The argument dir represents the path to temporary directory.

The argument verbose(logical) determines should feedback be output to the console?

The argument na (logical) determines should missing values be replaced with NAs? It forces raster into memory.

icesurf <- fetch(dat = "ETOPO1", var = "ice", dir, verbose=FALSE, na=TRUE)

Resolution

0.017

0.100

1.000

Archive size

ETOPO1_ice_c_20110606_tiff_0.017:445 MB

ETOPO1_ice_c_20110606_tiff_0.1: 27.7 MB

ETOPO1_ice_c_20110606_tiff_1: 296 KB

Version

c_20110606_tiff

Licence

CC-BY 3.0

References

Amante, C., & Eakins, B. W. (2009). ETOPO1 Global Relief Model converted to PanMap layer format [Data set].

NOAA-National Geophysical Data Center doi.org/10.1594/PANGAEA.769615