Influence of pit removal algorithms on surface runoff simulation

Građevinar

article

Sanja Šamanović¹  Damir Medak²  Duška Kunštek³ 

[1] University of Zagreb Faculty of Geodesy Institute of Cartography and Photogrammetry;University of Zagreb Faculty of Geodesy Institute of Geomatics;University of Zagreb Faculty of Civil Engineering Department of Water Research

关键词: DTM;    DEM;    Interpolation;    pit removal;    carving method;    filling method;   

DOI  :  10.14256/JCE.1543.2015

学科分类：社会科学、人文和艺术（综合）

来源: Hrvatsko Drustvo Gradevinskih Inzenjera

【 摘 要 】

The digital terrain model (DTM) with removed pits is a precondition for hydrologic analysis. Two pit removal methods, the carving method and the filling method, are investigated in the paper for three different geomorphometric areas. The input data are digital elevation models (DEM) created by interpolation from photogrammetric surveying in the spatial resolution of 5x5 meters. A recommendation for the use of a more acceptable DEM creation method without pits, involving minimum geomorphometric changes, is given based on geomorphometric and statistical analyses. The importance of selecting a correct algorithm is proven.

【 授权许可】

CC BY