Geomorpho90m, empirical evaluation and accuracy assessment of global high-resolution geomorphometric layers.

ABSTRACT: Topographical relief comprises the vertical and horizontal variations of the Earth's terrain and drives processes in geomorphology, biogeography, climatology, hydrology and ecology. Its characterisation and assessment, through geomorphometry and feature extraction, is fundamental to numerous environmental modelling and simulation analyses. We, therefore, developed the Geomorpho90m global dataset comprising of different geomorphometric features derived from the MERIT-Digital Elevation Model (DEM) - the best global, high-resolution DEM available. The fully-standardised 26 geomorphometric variables consist of layers that describe the (i) rate of change across the elevation gradient, using first and second derivatives, (ii) ruggedness, and (iii) geomorphological forms. The Geomorpho90m variabl

SUBMITTER: Amatulli G 

PROVIDER: S-EPMC7256046 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature