True-3D Imaging of Mountainous Regions: Case Study from the Polish Tatra Mountains

2013 ◽  
pp. 565-577
Author(s):  
Natalia Kolecka
Keyword(s):  
3D Imaging ◽  
Tatra Mountains ◽  
Mountainous Regions

scholarly journals How to value protection from natural hazards – a step-by-step discrete choice approach

2013 ◽  
Vol 13 (4) ◽  
pp. 913-922 ◽  
Author(s):  
R. Olschewski
Keyword(s):  
Natural Hazards ◽  
Choice Experiment ◽  
Local Population ◽  
Efficient Solutions ◽  
Protection Measures ◽  
Mountainous Regions ◽  
The People ◽  
Technical Measures ◽  
Choice Approach

Abstract. In mountainous regions, forests play a crucial role in protecting the local population from natural hazards. In cases where existing forests are destroyed, e.g. by wind throws or diseases, the protection function has to be restored through technical measures. To determine the willingness to pay (WTP) for protection against avalanches, a choice experiment has been conducted and different experiment specifications have been tested to determine possible impacts on the results. The present study contributes to a comprehensive assessment of protection measures, and helps to identify efficient solutions based on the judgement of the people potentially endangered by natural hazards. The stepwise approach has the advantage to gradually check data fit, thereby didactically showing an operational way of dealing with different model specifications. The detailed case study can serve as a manual for conducting choice experiments with a similar focus and demonstrates the suitability and caveats of this approach to value protection from natural hazards in general.

scholarly journals Study on the combined threshold for gully-type debris flow early warning

2019 ◽  
Vol 19 (1) ◽  
pp. 41-51 ◽  
Author(s):  
Jian Huang ◽  
Theodoor Wouterus Johannes van Asch ◽  
Changming Wang ◽  
Qiao Li
Keyword(s):  
Debris Flow ◽  
Pore Pressure ◽  
Early Warning ◽  
Early Stage ◽  
Warning System ◽  
Early Warning Systems ◽  
Great Loss ◽  
Mountainous Regions ◽  
Pressure Threshold

Abstract. Gully-type debris flow induced by high-intensity and short-duration rainfall frequently causes great loss of properties and causalities in mountainous regions of southwest China. In order to reduce the risk by geohazards, early warning systems have been provided. A triggering index can be detected in an early stage by the monitoring of rainfall and the changes in physical properties of the deposited materials along debris flow channels. Based on the method of critical pore pressure for slope stability analysis, this study presents critical pore pressure threshold in combination with rainfall factors for gully-type debris flow early warning. The Wenjia gully, which contains an enormous amount of loose material, was selected as a case study to reveal the relationship between the rainfall and pore pressure by field monitoring data. A three-level early warning system (zero, attention, and warning) is adopted and the corresponding judgement conditions are defined in real time. Based on this threshold, there are several rainfall events in recent years have been validated in Wenjia gully, which prove that such a combined threshold may be a reliable approach for the early warning of gully-type debris flow to safeguard the population in the mountainous areas.

Territorial exploitation in Chinese subtropical mountainous regions, South Anhui as a case study

GeoJournal ◽  
1990 ◽  
Vol 21 (1-2) ◽  
pp. 73-81
Author(s):  
Fang Jueshu ◽  
Xie Yichun
Keyword(s):  
Mountainous Regions

Calibrating and validating multispectral 3D imaging systems at a permanent test site-case study with an Intergraph DMC

2011 ◽  
Vol 26 (134) ◽  
pp. 229-249 ◽  
Author(s):  
Eija Honkavaara ◽  
Kimmo Nurminen ◽  
Lauri Markelin ◽  
Juha Suomalainen ◽  
Risto Ilves
Keyword(s):  
3D Imaging ◽  
Test Site ◽  
Imaging Systems
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