NDLI: The Use of LiDAR-Derived DEM in Flood Applications: A Review

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The Use of LiDAR-Derived DEM in Flood Applications: A Review

Content Provider	MDPI
Author	Muhadi, Nur Abdullah, Ahmad Bejo, Siti Mahadi, Muhammad Mijic, Ana
Copyright Year	2020
Description	Flood occurrence is increasing due to escalated urbanization and extreme climate change; hence, various studies on this issue and methods of flood monitoring and mapping are also increasing to reduce the severe impacts of flood disasters. The advancement of current technologies such as light detection and ranging (LiDAR) systems facilitated and improved flood applications. In a LiDAR system, a laser emits light that travels to the ground and reflects off objects like buildings and trees. The reflected light energy returns to the sensor, whereby the time interval is recorded. Since the conventional methods cannot produce high-resolution digital elevation model (DEM) data, which results in low accuracy of flood simulation results, LiDAR data are extensively used as an alternative. This review aims to study the potential and the applications of LiDAR-derived DEM in flood studies. It also provides insight into the operating principles of different LiDAR systems, system components, and advantages and disadvantages of each system. This paper discusses several topics relevant to flood studies from a LiDAR-derived DEM perspective. Furthermore, the challenges and future perspectives regarding DEM LiDAR data for flood mapping and assessment are also reviewed. This study demonstrates that LiDAR-derived data are useful in flood risk management, especially in the future assessment of flood-related problems.
Starting Page	2308
e-ISSN	20724292
DOI	10.3390/rs12142308
Journal	Remote Sensing
Issue Number	14
Volume Number	12
Language	English
Publisher	MDPI
Publisher Date	2020-07-18
Access Restriction	Open
Subject Keyword	Remote Sensing Airborne Lidar Dem Flood Inundation Flood Map Flood Model Lidar Terrestrial Lidar
Content Type	Text
Resource Type	Article

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