| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6922609 | Computers & Geosciences | 2015 | 7 Pages |
Abstract
This paper investigates differences between morphometric parameters (slope and aspect) derived from a resampled DEM and resampled morphometric data derived from a medium resolution DEM, with examples for three study areas in South America selected to represent flatlands, hilly terrain, and mountain ranges. Using a low resolution DEM for regional scale morphometric analysis is not an optimal choice, since attenuation of elevation will strongly affect the distribution of calculated parameters. Unless bounded by computational constraints, one should choose to derive basic morphometric parameters from higher resolution data, and resample it to a coarser resolution as needed.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Carlos H. Grohmann,