Geomorphometry for detailed digital elevation model

Abstract

The purpose of this report is to arrange the definitions of geomorphometric measures for digital elevation models (DEMs) and to prescribe some advanced applications of the 50 m-DEM newly delivered by the Geographical Survey Institute of Japan. Newly defined geomorphic measures for inclusion in DEMs include projected area (A), surface area (As), and volume (V) of topography defined within the window and the drainage basin, and their derivatives - for example general steepness (A/As), general relief (V/A), and steepness index V/A3/2). -from English summary