WB3: Risk Management

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2. Landslide MonitoringC. Monitoring Systems – Integrated Total Station and GPSMountain <strong>Risk</strong>sResearch Training NetworkGPS-Master : Leica GMX902 GG (L1, L2)Total Station: Leica TCA 2003(> 2000 m range, Automatic TargetRecognition ATR. Ang. st.dev. 0.01 mgon,Dist. st. dev 1 mm + 1 ppm / 3.0 s)Clinometer: Leica Nivel 210(biaxial mrad, + temperature, sampling 300ms)Over 50 Prisms(5 reference stations)+ case with:- Industrial PC unit with:- GPRS modem- power supply 220 V- Battery in case of black-out),- W-LAN system3 GPS-Rover (L1 Leica GMX901 GG (12 CH.L1, 1Hz),+ case with: battery + solar panel, W-LANMOUNTAIN RISKS: Mid-term Meeting, Diablerets, 26-27 June 2009
2C. Monitoring Systems – Integrated Total Station and GPSMountain <strong>Risk</strong>sResearch Training NetworkTECHNICAL CONSTRAINS: Hardware> 1 month Set-up and Start-up phase neededTasks- Cope with large movements- Assure quick replacement- Cover “significant” areas- Find suitable location for Ref.- Easily accessible- panorama withininstruments range- Stable and Safe- Covered by GSM or GPRS-Possibly served by 220 V-battery needed-Accessibility and security-Accessibility duringevents for emergencyrecoverof hardware- Wireless visibility rovermasterPotential Problems- Loss / rotation of prisms- Vegetation growth- Line of sight not free(vegetation./morphology)- etc…- No such place available- Permissions required- Settlement in time if soilor weak rocks (loss of TCAleveling .i.e inclinometercontrol needed)- No such place available- Loss of Wirelessconnection due tovegetation growth orslope movements- etc…MOUNTAIN RISKS: Mid-term Meeting, Diablerets, 26-27 June 2009
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