Details
MERIT DEM is a high accuracy global DEM with a resolution of 90 m. It combines multiple existing DEM datasets (NASA SRTM3 DEM, JAXA AW3D DEM, Viewfinder Panoramas DEM), making use of their combined strenghts to address their individual weaknesses. The present version of this dataset was aggregated to 300 m. Furthermore, the dataset was combined with GEBCO bathymetry data, which was added to oceanic data gaps in the MERIT DEM.
Subdatasets
minElevation | Minimum per-pixel elevation
meanElevation | Mean per-pixel elevation
maxElevation | Maximum per-pixel elevation
elevationMeanLand | Mean elevation over land
hillshade | Topographic hillshade
slope | Topographic slope (degrees)
slopeMean | Mean topograhic slope (degrees)
smoothSlope | Slope smoothed with 5x5 window mean (degrees)
masDMT query
# data call without specifying subdataset and resolution
list_data("MERIT_DEM")
# data call for specific subdataset
list_data("MERIT_DEM/minElevation")
# data call to subdataset with a specific resolution
list_data("MERIT_DEM/minElevation/300m")
References
(bibtex)
[1] Yamazaki, Ikeshima, Tawatari, Yamaguchi, O’Loughlin, Neal, Sampson, Kanae, and Bates (2017)