Transcript
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Geodetical Monitoring of Landslide Processes– Concepts, Instrumentation, Evaluation, Analysis
Thomas WUNDERLICH, Technische Universität München
Krautblatter – Wunderlich - StraubLandslides
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Contents of Part 1
Natural Hazards
Landslides
Introduction toGeodetical Monitoring
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Global Natural Disasters 2010
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Munich RE: event categories
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Number of events with trend (1950 – 2010)
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Overall and insured losses worldwide (1950 – 2010)
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Risk
UN/ISDR, 2004
risk = expected impact (EI) x propability of occurence (PO)
risk priority figure = EI x PO x capability of reaction TUM BWL, 2006
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Experts teaming up in natural risk management
Environmental Engineers(Umwelting. – Kulturtechniker)
Geologists Hydrologists Civil Engineers Geodesists Geophysicists Meteorologists Geographers … and some more
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Demand for geodesists in natural risk management
FIG, 2006
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Geodetic disciplines and their contribution
• Earth System Research• Physical Geodesy• Remote Sensing• Land Management• Geoinformatics (GIS)• Engineering Surveying• Photogrammetry• Cartography• Satellite Geodesy
understanding global coherencesglobal reconnaissanceregional reconnaissanceland use planning – hazard zoningdata modelling and provisionmonitoring & early warningswift local reconnaissancemapping and orientationpositioning and navigation
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Creating risk awareness and providing information!
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
natural hazard evidence maps
Bayerisches Landesamtfür Umwelt
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Initiative InnovaRISK(since 2004)
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Landslides
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Trigger for Landslides
Landslides, though generally disposed geologically are frequentlycaused resp. activated by other occurrences, called triggers:
earthquakes
volcanism
erosion
heavy rain, flooding, snowmelt
freeze-thaw cycle, upward movement of permafrost line
structural interventions in slope equilibrium
Extent of losses of minor importance according reassurancecompanies, but clearly increasing – alpine space most affected!
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Over all the peaks it is peaceful [Goethe] – but below?
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Geodetical Monitoring
GNSS-based procedures (global)
Remote Sensing (regional)
Terrestrial procdures (local)
Triangulation / Trilateration (conventional precision surveying)
Tacheometry / Total Stations as Observation Robots (TPS)
Laserscanning (TLS)
Ground based interferometric Synthetic Aperture Radar (Gb-SAR)
Geotechnical explorations, Fibre Optic (Strain) Sensors (FOS)
Geo Sensor Networks (GSN)
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Comparing accuracy and range
geotechnical< 1 mm
relative
geodetical1mm < 10 mmTPS or GPS
absolute
remote sensing> 10 mm
(over short periods)
monitoring method
< 100 m < 1500 m / 3000 m region covering
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
First exemplary considerations
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Deformations of 4 m in 20years
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Long term monitoring – technology change problem
intervisibility between stationscommon reception of
min = 4 satellite signals
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Deformations 1987-2010 (horizontal – vertical)
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
3d movements and point velocities
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
continuous monitoring by low-cost GNSS
Inst. f. Geodäsie, UniBw München
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
what „alpine“ means …
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Areal deformation measurement by TLS
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Areal deformation measurement by TLS
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Searching for hot spots by Gb-SAR
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Open Air Laboratory for master students GG & EE
Institute for Geodesy, GIS and Land Management
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Thuro, Wunderlich, Heunecke, 2006
Integrative earlywarning system foralpine instable slopes
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
finden alert thresholds – setting up emergency plans
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Autonomous monitoring of natural targets (non-cooperative)
Wasmeier, 2006
Testing area Sudelfeld, BY
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
[Quelle: Geomatik Seminar, Wasmeier]
Image Assisted Total Station 2 for robotic observation
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Feature-matching by 2 videometric tacheometers
Reiterer, 2011
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
DeMONTES — Deformation Monitoringby High Resolution Terrestrial Long Range Sensing
Laufzeit: 2012-2013Finanzierung: EU (FP7)
Projektsumme: ca. 1.0 Mio. €Für TUM: Dr. Alexander Reiterer
Forschungskonsortium:
Lehrstuhl für Geodäsie,Technische Universität
München
Institut für Informations- undKommunikationstechnologien,
Joanneum Research Graz (Österreich)
Center for Machine Perception,Czech Technical University
(Tschechien)
Dibit Messtechnik,Innsbruck (Österreich)
Cautus Geo,Lier (Norwegen)
Geo ImagiNicosia (Zyp
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Interdisciplinary EU research project with LfU
Climate Change, Impacts andAdaptation Strategies in theAlpine Space
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
thuderstorms arriving more often and heavier
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Preparing for cascading extreme events
water destabilizing land land barring watercourse
Krautblatter – Wunderlich - Straub LANDSLIDES SS 2012
Certainly, geodesy is not a must …
top related