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Comparison of Beach Gradient between Observations and Derived from<br />

Unmanned Aerial Vehicles (UAV)<br />

Ady Syafiq bin Asmaddi<br />

Supervisor: En. Idham bin Khalil<br />

Bachelor of Science (Marine Science)<br />

School of Marine and Environmental Sciences<br />

Beaches in Terengganu are experiencing beach morphology changes due to the rapid<br />

development of its coastal zone. A detailed beach morphology monitoring is needed<br />

and could provide crucial data for coastal management. Unmanned Aerial Vehicle<br />

(UAV) is now a new method for coastal surveying due to its capability in providing<br />

high spatial and temporal resolution data. The objective of this study is to obtain beach<br />

gradient by using conventional survey (total station) and from UAV. DJI Mavic Pro was<br />

used to acquire 310 beach photos in Pantai Batu Rakit, Terengganu. Ground Control<br />

Points (GCPs) were established to geo-locate the images. Orthomosaic image and<br />

Digital Elevation Model (DEM) were produced using AgiSoft software. This study<br />

revealed a strong correlation between beach gradient from UAV and conventional<br />

method with the r 2 =0.83 and RMSE = 0.75 meters. This study shows a significant<br />

potential of UAV in beach morphology monitoring.<br />

1850 | UMT UNDERGRADUATE RESEARCH DAY 2018

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