AI-generated Key Takeaways
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MERIT DEM provides a high-accuracy global digital elevation model (DEM) at 3 arc-second resolution by removing errors from existing DEMs.
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MERIT Hydro offers a global flow direction map at 3 arc-second resolution derived from MERIT DEM and water body datasets.
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MERIT Hydro also includes supplementary visualization layers to aid in understanding and utilizing the hydrography data.
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MERIT DEM: Multi-Error-Removed Improved-Terrain DEM
MERIT DEM a high accuracy global DEM at 3 arc second resolution (~90 m at the equator) produced by eliminating major error components from existing DEMs (NASA SRTM3 DEM, JAXA AW3D DEM, Viewfinder Panoramas DEM). MERIT DEM separates absolute bias, stripe noise, speckle noise and … dem elevation elevation-topography merit topography -
MERIT Hydro: Global Hydrography Datasets
MERIT Hydro is a new global flow direction map at 3 arc-second resolution (~90 m at the equator) derived from the version 1.0.3 of the MERIT DEM elevation data and water body datasets (G1WBM, GSWO and OpenStreetMap). MERIT Hydro contains the output of a new … dem elevation flow-direction hand hydrography hydrosheds -
MERIT Hydro: Supplementary Visualization Layers
Supplementary visualization layers for MERIT Hydro dem elevation flow-direction hand hydrography hydrosheds