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Performance of different digital elevation model resolution for the Rompin River Basin / Amirul Naqiuddin Jamaludin

By:

Amirul Naqiuddin Jamaludin [author.]

Material type: Text

text
text

Media type:

unmediated
computer

Carrier type:

volume
computer disc

ISBN:

THE0008780(Local)

Subject(s):

Dissertation note: Project Paper (Bachelors of Civil Engineering) -- Universiti Malaysia Pahang – 2019 Abstract: Digital elevation model (DEM) of a watershed forms key basis for hydrologic modelling and its resolution plays a key role in accurate prediction of various hydrological processes. This study appraises the effect of different DEMs with varied spatial resolutions namely 5m Interferometric Synthetic Aperture Radar (IFSAR) - Digital Terrain Model (DTM) and 30m Shuttle Radar Topography Mission (SRTM) - Digital Elevation Model (DEM) using ArcGIS software application for the case study of Rompin River Basin in Rompin, Pahang. The objectives of this study are to delineate river network and basin catchment, and to evaluate the performance of the 30m SRTM-DEM and 5m IFSAR-DTM in providing physical and topographical information for the Rompin river basin. From the result of the case study, it was observed that the different DEMs resolution produced different accuracies. The average error difference compared to the digitised river network for the 5m IFSAR-DTM was found out to be larger compared to the 30m SRTM-DEM. The large error was caused by the z-value assigned during the reconditioning process. Since the performance of 30m SRTM-DEM is close to the 5m IFSAR-DTM, it indicates that 30m resolution is sufficiently reliable in providing physical and topographical information of the Rompin River Basin.

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Holdings ( 2 )
Title notes ( 4 )

Holdings
Item type	Current library	Collection	Call number	Copy number	Status	Date due	Barcode
Final Year Report	UMPLIB GAMBANG Reference	Reference	FKASA .A458 2019 r Bc. (Browse shelf(Opens below))	1	Not for loan		T000000854
Final Year Report	UMPLIB GAMBANG	Reference	CD12654 (Browse shelf(Opens below))	1	Not for loan		T000000855

Faculty of Civil Engineering and Earth Resources

Project Paper (Bachelors of Civil Engineering) -- Universiti Malaysia Pahang – 2019

Includes bibliographical references

Digital elevation model (DEM) of a watershed forms key basis for hydrologic modelling and its resolution plays a key role in accurate prediction of various hydrological processes. This study appraises the effect of different DEMs with varied spatial resolutions namely 5m Interferometric Synthetic Aperture Radar (IFSAR) - Digital Terrain Model (DTM) and 30m Shuttle Radar Topography Mission (SRTM) - Digital Elevation Model (DEM) using ArcGIS software application for the case study of Rompin River Basin in Rompin, Pahang. The objectives of this study are to delineate river network and basin catchment, and to evaluate the performance of the 30m SRTM-DEM and 5m IFSAR-DTM in providing physical and topographical information for the Rompin river basin. From the result of the case study, it was observed that the different DEMs resolution produced different accuracies. The average error difference compared to the digitised river network for the 5m IFSAR-DTM was found out to be larger compared to the 30m SRTM-DEM. The large error was caused by the z-value assigned during the reconditioning process. Since the performance of 30m SRTM-DEM is close to the 5m IFSAR-DTM, it indicates that 30m resolution is sufficiently reliable in providing physical and topographical information of the Rompin River Basin.