Landslides volumetric estimation by using LiDAR data and Sediment Production Rate method

Author

Wu, Ming-Chee ; Yang, Mon-Shieh ; Liu, Huang-Chen ; Liu, Jin-King

Author_Institution

Nat. Cheng Kung Univ., Tainan, Taiwan

fYear

2012

fDate

22-27 July 2012

Firstpage

6305

Lastpage

6308

Abstract

LiDAR DEM (Digital Elevation Model) data of two different periods, before and after a heavy rain event, were acquired to specify the exact boundary of the mass been moved, and to calculate the variations of ground elevation by using the DEM values for each photometric cellular element. With the modified Sediment Production Rate (SPR) equation, volumes of the mass wasted were as well being estimated. In addition, with the aids of spatial analysis tools of Geographic Information System (GIS), details of the landslide were well enhanced; such that, the magnitude and the peripheral extent of the landslide were characterized.

Keywords

digital elevation models; geographic information systems; geomorphology; geophysical image processing; optical radar; photogrammetry; rain; sediments; DEM values; Geographic Information System; LiDAR DEM data; Taiwan; ground elevation; heavy rain event; landslide volumetric estimation; modified sediment production rate equation; photometric cellular element; sediment production rate method; spatial analysis tools; Accuracy; Laser radar; Measurement by laser beam; Production; Satellites; Sediments; Terrain factors; Digital Elevation Models; Image Fusion; Image Texture Analysis; Surface Roughness; Vegetation Mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Conference_Location

Munich

ISSN

2153-6996

Print_ISBN

978-1-4673-1160-1

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2012.6352701

Filename

6352701