Advanced Debris-Flow Monitoring and Alarm System at Spreitgraben

2014 ◽  
pp. 59-62 ◽  
Author(s):  
Mylène Jacquemart ◽  
Daniel Tobler ◽  
Christoph Graf ◽  
Lorenz Meier
Keyword(s):  
Debris Flow ◽  
Alarm System ◽  
Flow Monitoring

scholarly journals Debris-Flow Monitoring for the Set-Up of a Warning and Alarm System -Experiences from the Pyrenees-

2016 ◽  
Vol 9 (3) ◽  
pp. 107-113 ◽  
Author(s):  
Marcel HÜRLIMANN ◽  
Clàudia ABANCÓ ◽  
Jose MOYA ◽  
Marc BERENGUER ◽  
Ignasi VILAJOSANA
Keyword(s):  
Debris Flow ◽  
Alarm System ◽  
Flow Monitoring ◽  
Set Up

scholarly journals Analysis of debris-flow recordings in an instrumented basin: confirmations and new findings

2012 ◽  
Vol 12 (3) ◽  
pp. 679-686 ◽  
Author(s):  
M. Arattano ◽  
L. Marchi ◽  
M. Cavalli
Keyword(s):  
Debris Flow ◽  
Alluvial Fan ◽  
Seismic Network ◽  
Low Flow ◽  
Main Peak ◽  
Flow Monitoring ◽  
Irregular Pattern ◽  
New Findings ◽  
Seismic Recording ◽  
Seismic Networks

Abstract. On 24 August 2006, a debris flow took place in the Moscardo Torrent, a basin of the Eastern Italian Alps instrumented for debris-flow monitoring. The debris flow was recorded by two seismic networks located in the lower part of the basin and on the alluvial fan, respectively. The event was also recorded by a pair of ultrasonic sensors installed on the fan, close to the lower seismic network. The comparison between the different recordings outlines particular features of the August 2006 debris flow, different from that of events recorded in previous years. A typical debris-flow wave was observed at the upper seismic network, with a main front abruptly appearing in the torrent, followed by a gradual decrease of flow height. On the contrary, on the alluvial fan the wave displayed an irregular pattern, with low flow depth and the main peak occurring in the central part of the surge both in the seismic recording and in the hydrographs. Recorded data and field evidences indicate that the surge observed on the alluvial fan was not a debris flow, and probably consisted in a water surge laden with fine to medium-sized sediment. The change in shape and characteristics of the wave can be ascribed to the attenuation of the surge caused by the torrent control works implemented in the lower basin during the last years.

Debris flow monitoring in the French Alps

2014 ◽  
pp. 1589-1595
Author(s):  
C Bel ◽  
F Liébault ◽  
H Bellot ◽  
F Fontaine ◽  
D Laigle ◽  
...  
Keyword(s):  
Debris Flow ◽  
French Alps ◽  
Flow Monitoring

scholarly journals Debris-flow monitoring and warning: Review and examples

2019 ◽  
Vol 199 ◽  
pp. 102981 ◽  
Author(s):  
Marcel Hürlimann ◽  
Velio Coviello ◽  
Coraline Bel ◽  
Xiaojun Guo ◽  
Matteo Berti ◽  
...  
Keyword(s):  
Debris Flow ◽  
Flow Monitoring

Results and experiences gathered at the Rebaixader debris-flow monitoring site, Central Pyrenees, Spain

Landslides ◽  
2013 ◽  
Vol 11 (6) ◽  
pp. 939-953 ◽  
Author(s):  
M. Hürlimann ◽  
C. Abancó ◽  
J. Moya ◽  
I. Vilajosana
Keyword(s):  
Debris Flow ◽  
Monitoring Site ◽  
Flow Monitoring ◽  
Central Pyrenees

Outlining a stepwise, multi-parameter debris flow monitoring and warning system: an example of application in Aizi Valley, China

2020 ◽  
Author(s):  
Ningsheng Chen
Keyword(s):  
Debris Flow ◽  
Early Warning ◽  
Pressure Sensors ◽  
Warning System ◽  
Point Of View ◽  
Economic Point ◽  
Flow Monitoring ◽  
Vibration Sensors ◽  
Wide Range ◽  
Critical Rainfall

<p>Abstract: In recent years, the increasing frequency of debris flow demands enhanced effectiveness and efficiency are essential not only from an economic point of view but are also considered as a frontline approach to alleviate hazards. Currently, the key issues are the imbalance between the limited lifespan of equipment, the relatively long period between the recurrences of such hazards, and the wide range of critical rainfall that trigger these disasters. This paper attempt to provide a stepwise multi-parameter debris flow warning system after taking into account the shortcomings observed in other warning systems. The whole system is divided into five stages. Different warning levels can be issued based on the critical rainfall thresholds. Monitoring starts when early warning is issued and it continues with debris flow near warning, movement warning and hazard warning stages. For early warning, historical archives of earthquake and drought are used to choose a debris flow susceptible site for further monitoring, Secondly, weather forecasts provide an alert of possible near warning. Hazardous precipitation, model calculation and debris flow initiation tests, pore pressure sensors and water content sensors are combined to check the critical rainfall and to publically announce a triggering warning. In the final two stages, equipment such as rainfall gauges, flow stage sensors, vibration sensors, low sound sensors and infrasound meters are used to assess movement processes and issue hazard warnings. In addition to these warnings, community-based knowledge and information is also obtained and discussed in detail. The proposed stepwise, multi-parameter debris flow monitoring and warning system has been applied in Aizi valley China which continuously monitors the debris flow activities.</p>

Experiences of Debris-Flow Monitoring and Warning at Catchment Scale in the Pyrenees

2013 ◽  
pp. 153-159 ◽  
Author(s):  
Marcel Hürlimann ◽  
Claudia Abancó ◽  
Jose Moya
Keyword(s):  
Debris Flow ◽  
Catchment Scale ◽  
Flow Monitoring
Sign in / Sign up

Export Citation Format

Share Document