A geomorphological study of bachang shih with airborne LiDAR

Pei Hsuan Yu; Tian-Yuan Shih

A geomorphological study of bachang shih with airborne LiDAR

Department of Civil Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

Geomorphological analysis provides an effective tool for the terrain changes due to sediments and erosion of a river. Bazhang Shih, located in southern Taiwan, is featured with large terrain changes resulting from erosions and other causes. A segment of this river has been previously studied with the Digital Elevation Models (DEM) established from historic aerial photographs. Resulting from the technological advance, airborne LiDAR is capable of providing both higher spatial distribution and vertical accuracy comparatively than the DEM generated before. This study utilizes the LiDAR DEM surveyed in 2011, 2012 and 2013 of a river segment. Several schemes are devised for the analysis, including DEM differencing, and frequency domain analysis.

Original language	English
State	Published - 1 Jan 2015
Event	36th Asian Conference on Remote Sensing: Fostering Resilient Growth in Asia, ACRS 2015 - Quezon City, Metro Manila, Philippines Duration: 24 Oct 2015 → 28 Oct 2015

Conference

Conference	36th Asian Conference on Remote Sensing: Fostering Resilient Growth in Asia, ACRS 2015
Country	Philippines
City	Quezon City, Metro Manila
Period	24/10/15 → 28/10/15

Keywords

DEM
Erosion

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abstract = "Geomorphological analysis provides an effective tool for the terrain changes due to sediments and erosion of a river. Bazhang Shih, located in southern Taiwan, is featured with large terrain changes resulting from erosions and other causes. A segment of this river has been previously studied with the Digital Elevation Models (DEM) established from historic aerial photographs. Resulting from the technological advance, airborne LiDAR is capable of providing both higher spatial distribution and vertical accuracy comparatively than the DEM generated before. This study utilizes the LiDAR DEM surveyed in 2011, 2012 and 2013 of a river segment. Several schemes are devised for the analysis, including DEM differencing, and frequency domain analysis.",

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N2 - Geomorphological analysis provides an effective tool for the terrain changes due to sediments and erosion of a river. Bazhang Shih, located in southern Taiwan, is featured with large terrain changes resulting from erosions and other causes. A segment of this river has been previously studied with the Digital Elevation Models (DEM) established from historic aerial photographs. Resulting from the technological advance, airborne LiDAR is capable of providing both higher spatial distribution and vertical accuracy comparatively than the DEM generated before. This study utilizes the LiDAR DEM surveyed in 2011, 2012 and 2013 of a river segment. Several schemes are devised for the analysis, including DEM differencing, and frequency domain analysis.

AB - Geomorphological analysis provides an effective tool for the terrain changes due to sediments and erosion of a river. Bazhang Shih, located in southern Taiwan, is featured with large terrain changes resulting from erosions and other causes. A segment of this river has been previously studied with the Digital Elevation Models (DEM) established from historic aerial photographs. Resulting from the technological advance, airborne LiDAR is capable of providing both higher spatial distribution and vertical accuracy comparatively than the DEM generated before. This study utilizes the LiDAR DEM surveyed in 2011, 2012 and 2013 of a river segment. Several schemes are devised for the analysis, including DEM differencing, and frequency domain analysis.

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