Analysis the accuracy of digital elevation model (DEM) for flood modelling on lowland area

Ku Zainol Abidin, Ku Hasna Zainurin and Mohammad Razi, Mohd Adib and Mohd Bukari, Saifullizan (2018) Analysis the accuracy of digital elevation model (DEM) for flood modelling on lowland area. IOP Conference Series: Earth and Environmental Science (EES), 140. pp. 1-10. ISSN 1755-1307

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Flood is one type of natural disaster that occurs almost every year in Malaysia. Commonly the lowland areas are the worst affected areas. This kind of disaster is controllable by using an accurate data for proposing any kinds of solutions. Elevation data is one of the data used to produce solutions for flooding. Currently, the research about the application of Digital Elevation Model (DEM) in hydrology was increased where this kind of model will identify the elevation for required areas. University of Tun Hussein Onn Malaysia is one of the lowland areas which facing flood problems on 2006. Therefore, this area was chosen in order to produce DEM which focussed on University Health Centre (PKU) and drainage area around Civil and Environment Faculty (FKAAS). Unmanned Aerial Vehicle used to collect aerial photos data then undergoes a process of generating DEM according to three types of accuracy and quality from Agisoft PhotoScan software. The higher the level of accuracy and quality of DEM produced, the longer time taken to generate a DEM. The reading of the errors created while producing the DEM shows almost 0.01 different. Therefore, it has been identified there are some important parameters which influenced the accuracy of DEM.

Item Type: Article
Uncontrolled Keywords: NIL
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering > TC1501-1800 Ocean engineering
Divisions: Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Water and Environmental Engineering
Depositing User: Miss Afiqah Faiqah Mohd Hafiz
Date Deposited: 20 Oct 2021 02:04
Last Modified: 20 Oct 2021 02:04

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