DSpace About DSpace Software

DSpace Biblioteca Universidad de Talca (v1.5.2) >
Dirección de Investigación >
Artículos en publicaciones ISI - Universidad de Talca >

Please use this identifier to cite or link to this item: http://dspace.utalca.cl/handle/1950/8810

Title: Digital Elevation Model Generalization constrained by Critical Points of the Terrain
Other Titles: Generalización de modelo digital de elevación condicionada por puntos críticos de terreno
Authors: Mena, C.
Pino, L.M.
Rojas, Y.O.
Hernandez, Y.M.
Keywords: Generalization
Digital Elevation Model
Terrain Critical Points
Issue Date: 2011
Citation: BOLETIM DE CIENCIAS GEODESICAS Volume: 17 Issue: 3 Pages: 439-457
Abstract: Digital Elevation Models (DEMs) are essential geomatic products in the study, management and administration of the territory. Uses and availability of high resolution data reveal a steady growth in recent decades allowing several analyses to qualify and quantify characteristics of the territory. Despite the increasing availability of the elevation data, territories studies require DEMs with coarser spatial resolution than the available one. This report evaluates the proposed generalized DEM method which retains terrain critical-points comparing to the one that applies a bilinear interpolation to change DEM resolution. Therefore, Shuttle Radar Topography Mission (SRTM) project data of Maule Region- Chile (111x91 km) are used in the evaluation process. Results show that the generalization constrained by critical points method has a better performance in preserving the spatial position of the evaluated features within the generalized DEM scale.
Description: Mena Frau, CM (reprint author), Univ Talca, Ctr Geomat, Ave Lircay S-N, Talca, Chile.
URI: http://dspace.utalca.cl/handle/1950/8810
ISSN: 1413-4853
Appears in Collections:Artículos en publicaciones ISI - Universidad de Talca

Files in This Item:

File Description SizeFormat
Full Text.pdf352.1 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Valid XHTML 1.0! DSpace Software Copyright © 2002-2009  The DSpace Foundation - Feedback