A ROBUST APPROACH FOR DETERMINING ROTATIONAL LANDSLIDE AREA FROM TWO EPOCHS OF LIDAR DATA
Küçük Resim Yok
Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
STEF92 TECHNOLOGY LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Light Detection and Ranging (LiDAR) System has been a powerful tool to acquire three dimensional positions and intensity of a returned signal from a reflecting object. With accurate positioning data, determining and monitoring deformations including dynamics and kinematics of the Earth crust can be possible. One of the deformations is a landslide. Detecting and monitoring of them are important in understanding the behavior of the Earth crust and preventing a possible hazard that may occur. Landslide detection is, therefore, one of the areas where studies being carried out. In this paper, a robust approach for detecting rotational type landslides by using two epochs of LiDAR data was proposed; one before and one after landslide occurred. The proposed method was based on outlier detection using whiskers plot of height differences obtained for an area profiled along the maximum slope direction. The gridded area was then handled in profile fashion imposing particular conditions that meet the properties of a rotational landslide. To test the proposed approach, two epochs of LiDAR data used first epoch of which is a real LiDAR data and second epoch of which is a simulated data to ensure the data contained one or more landslides. The preliminary results presented showed that the proposed approach was capable of detecting rotational type of landslides. This study may be important for those studying landslides in more detail.
Açıklama
16th International Multidisciplinary Scientific Geoconference (SGEM 2016) -- JUN 30-JUL 06, 2016 -- Albena, BULGARIA
Anahtar Kelimeler
LiDAR data, Rotational Landslide, Landslide Detection, Whiskers Plot
Kaynak
INFORMATICS, GEOINFORMATICS AND REMOTE SENSING CONFERENCE PROCEEDINGS, SGEM 2016, VOL II
WoS Q Değeri
N/A
