Title :
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
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;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6352701
