Influence of Elevation Data source on 2D Hydraulic Modelling

Krzysztof Bakuła , Mateusz Stępnik , Zdzisław Kurczyński

Abstract

The aim of this paper is to analyse the influence of the source of various elevation data on hydraulic modelling in open channels. In the research, digital terrain models from different datasets were evaluated and used in two-dimensional hydraulic models. The following aerial and satellite elevation data were used to create the representation of terrain – digital terrain model: airborne laser scanning, image matching, elevation data collected in the LPIS, EuroDEM, and ASTER GDEM. From the results of five 2D hydrodynamic models with different input elevation data, the maximum depth and flow velocity of water were derived and compared with the results of the most accurate ALS data. For such an analysis a statistical evaluation and differences between hydraulic modelling results were prepared. The presented research proved the importance of the quality of elevation data in hydraulic modelling and showed that only ALS and photogrammetric data can be the most reliable elevation data source in accurate 2D hydraulic modelling.
Author Krzysztof Bakuła ZFTSIP
Krzysztof Bakuła,,
- Department of Photogrammetry, Teledetection and Spatial Information Systems
, Mateusz Stępnik ZFTSIP
Mateusz Stępnik,,
- Department of Photogrammetry, Teledetection and Spatial Information Systems
, Zdzisław Kurczyński ZFTSIP
Zdzisław Kurczyński,,
- Department of Photogrammetry, Teledetection and Spatial Information Systems
Journal seriesActa Geophysica, ISSN 1895-6572
Issue year2016
Vol64
No4
Pages1176-1192
Publication size in sheets0.8
Keywords in Englishdigital terrain model (DTM), hydraulic modelling, LIDAR, aerial photogrammetry, satellite imagery
DOIDOI:10.1515/acgeo-2016-0030
Internal identifier76/2016
Languageen angielski
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2016_Bakuła_Kurczyński_Stępnik_Influence_of_elevation_76.pdf / 899.37 KB / 2016_Bakuła_Kurczyński_Stępnik_Influence_of_elevation_76.pdf 899.37 KB
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2016_Oświadczenie_Bakuła_i_inni_Influence_of_elevation_76.pdf (file archived - login or check accessibility on faculty) 2016_Oświadczenie_Bakuła_i_inni_Influence_of_elevation_76.pdf 424.81 KB
Score (nominal)20
ScoreMinisterial score = 20.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 20.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 0.968 (2) - 2016=1.27 (5)
Citation count*1 (2018-02-23)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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