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Wolverhampton Intellectual Repository and E-Theses > School of Technology > School of Engineering and the Built Environment > Architecture and Product Design > Effect of Grid Resolution and Terrain Characteristics on Data from DTM

Please use this identifier to cite or link to this item: http://hdl.handle.net/2436/23537
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Title: Effect of Grid Resolution and Terrain Characteristics on Data from DTM
Authors: Heesom, David
Mahdjoubi, Lamine
Citation: Journal of Computing in Civil Engineering, 15 (2): 137-143
Publisher: American Society of Civil Engineers
Journal: Journal of Computing in Civil Engineering
Issue Date: 2001
URI: http://hdl.handle.net/2436/23537
DOI: 10.1061/(ASCE)0887-3801(2001)15:2(137)
Additional Links: http://www.ascelibrary.org/
Abstract: Previous work in digital terrain modeling (DTM) has shown that if regular gridded-data sets are used in the construction of the model, both the resolution of the gridded-data set and the characteristics of the terrain being modeled have an effect on the accuracy of digital terrain models. The main objective of this study is to test the hypothesis that both the resolution of the gridded-data set and the characteristics of the terrain being modeled have an effect on the accuracy of any derived data. To test this hypothesis, the terrain was classified in terms of its roughness. Various forms of data were derived from the terrain model; these include volumes, surface area, contours, and cross sections. The accuracy for each of these quantities was calculated by comparing them with values obtained from a control model. This research concluded that by both increasing the resolution of the regular gridded-data sets and varying the characeristics of the terrain, the accuracy of any derived data is affected.
Type: Article
Language: en
Description: This work was undertaken in collaboration with WS Atkins Consulting Engineers.
Keywords: Grid resolution
Terrain characteristics
Digital terrain modeling
DTM
ISSN: 08873801
Appears in Collections: Architecture and Product Design

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