WB3: Risk Management

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2C. Monitoring Systems – Integrated Total Station and GPSMountain <strong>Risk</strong>sResearch Training NetworkPRISMS LOSS/ABATMENTTECHNICAL CONSTRAINS: Hardware> 1 month Set-up and Start-up phase neededGoodnews:someprisms inthe trackzone (earthsliding)remainedreadable fordisplacements up to 60m- 23 Oct. 2007 – 27March. Encountered 2008 problemsReplace needed for 12prisms(5 not recoverable)- 28 March 2008 to dateReplace needed for 3prisms-Lower slope not visible(1 not recoverable)- software keys conflictcaused system to crash 2times-Modem got stuck 3 timesbecause or incorrect remoteconnection shut down- Logistics- Battery crash 1 time inrover “A”- Ground cracks betweenGPS and Case after 1 metermovementSolutionsAvoid “fast”and too“muddy”sectorsFree LoS (cut trees – digearth)- change keys-Auto-reboot system- adopts strictdisconnection procedure- manual effort- remove vegetationMOUNTAIN RISKS: Mid-term Meeting, Diablerets, 26-27 June 2009
2. Landslide MonitoringDisplacement [m]Mountain <strong>Risk</strong>sResearch Training NetworkD. Data Analysis: SpatialExtend2827a0,50,450,40,350,30,250,20,150,10,050Sequential Downslope Downslope Activation at Voloria4Prism 4Prism 7Prism 14Prism 16Prism 20aPrism 22Prism 31Prism 27aPrism 286/7/08 11/7/08 16/7/08 21/7/08 26/7/08714Date1620a223182827a3120a +221614Where, Whenand HowMuch???=“thresholds”analysis47MOUNTAIN RISKS: Mid-term Meeting, Diablerets, 26-27 June 2009
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Page 29 and 30: OverviewMountain RisksResearch Trai
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