Monitoring of Landslide Using Photogrammetry and Remote Sensing
Lena Halounova!, Karel Pavelka?
! Remote Sensing Laboratory, Faculty of Civil Engineering, CTU Prague, Thakurova 7, 166 29 Prague 6, Czech Republic, tel.
+0042 2 2435 4952, E-mail: halounov@fsv.cvut.cz
“Laboratory of Photogrammetry, Faculty of Civil Engineering, CTU Prague, Thakurova 7, 166 29 Prague 6, Czech Republic, tel.
+0042 2 2435 4951, E-mail: pavelka@fsv.cvut.cz
KEY WORDS: landslide, GIS, DEM, stereo pair photos, geological data, river system
ABSTRACT
Northern Bohemia brown coal mine area is an area of more than 1500 km”. This area has been affected by open mine
activities which followed ground mine activities. The history of mining in this region is longer than a hundred years.
The Czech Geological Archive (GEOFOND) owns data concerning more than ninety active or passive landslides. Their
study and investigation was performed by traditional method of field study and photo interpretation. The final results
were presented by means of maps and reports related to individual cases. This project took into account various types of
data of a selected area, such as topographical, geological, hydrogeological, and pedological maps in 1 : 50 000, or 1 : 10
000 scale, detailed landslide maps and stereo pairs of aerial photos. All data were included into a geographical
information system. It was found that the most decisive phenomenum of a landslide occurrence is the existence of
tailings and their slope shapes. The accurate digital elevation model showed to be necessary. It was created from
digitized height contour maps and, photogrammetrically, from stereo pair photos.
1. INTRODUCTION
The landslide risk assessment has been in detail studied solution of this task have brought a large range of
within last 30 years. Various attitudes to a possible solution methods. They can be divided into
five big groups.
Table 1. Landslide risk assessment analysis
type of landslide risk assessment analysis main characteristics
distribution analysis direct field mapping of existing landslide movement
quality analysis direct or half direct methods applied to geomorphologic maps
statistical analysis undirect methods where statistical methods make it possible to determine
potential landslides from parameter maps
deterministic analysis undirect methods where parameter maps are combined with slope stability
evaluation
frequent landslide analysis undirect methods applying hydrological models, earthquake and rainfall
data for correlation with existing landslides for evaluating threshold values
with a certain frequency
586 International Archives of Photogrammetry and Remote Sensing. Vol. XXXII, Part 7, Budapest, 1998
by
of
dr