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All regions except the non-regional ocean converted into a single SpatialPolygons object. Regions are modified from the region masks provided by the National Snow and Ice Data Center (NSIDC)
SpatialPolygons
all_regions
SpatialPolygons object
Region Mask: National Snow and Ice Data Center, 2017: Region mask for the northern hemisphere. http://nsidc.org/data/polar-stereo/tools_masks.html.
# NOT RUN { data(all_regions) plot(all_regions) # }
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